Commit Graph

269 Commits

Author SHA1 Message Date
Joern Engel
fc256f04eb self-test: fix make clean
thuge-gen was forgotten.  Fix it by removing the duplication, so we don't
get too many repeats.

Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-03 16:08:07 -07:00
Joern Engel
51a1d16563 selftests: exit 1 on failure
In case this ever gets scripted, it should return 0 on success and 1 on
failure.  Parsing the output should be left to meatbags.

Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-03 16:08:07 -07:00
Frederic Weisbecker
0bc4b0cf15 selftests: add basic posix timers selftests
Add some initial basic tests on a few posix timers interface such as
setitimer() and timer_settime().

These simply check that expiration happens in a reasonable timeframe after
expected elapsed clock time (user time, user + system time, real time,
...).

This is helpful for finding basic breakages while hacking
on this subsystem.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Olivier Langlois <olivier@trillion01.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2013-07-03 16:20:03 +02:00
Daniel Borkmann
37beae65fa tools: selftests: psock_tpacket: get rid of macro wrappers
The TPACKET_V3 test code consists of a lot of unecessary macro
wrappers that rather obfuscate what members are accessed in what
way. So get rid of them and make the code more readable. Also
credit Chetan for providing tpacket_v3 example code. Furthermore,
get rid of private offset usage, as we do not need it here.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-02 00:23:57 -07:00
Masanari Iida
8b513d0cf6 treewide: Fix typo in printk
Correct spelling typo in various part of drivers

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-05-28 12:02:13 +02:00
Andrew Morton
97c9266b11 revert "selftest: add simple test for soft-dirty bit"
Revert commit 58c7be84fe ("selftest: add simple test for soft-dirty
bit").  This is the self test for Pavel's pagemap2 patches which didn't
actually get merged.

Reported-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-24 16:22:52 -07:00
Linus Torvalds
73287a43cc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
 "Highlights (1721 non-merge commits, this has to be a record of some
  sort):

   1) Add 'random' mode to team driver, from Jiri Pirko and Eric
      Dumazet.

   2) Make it so that any driver that supports configuration of multiple
      MAC addresses can provide the forwarding database add and del
      calls by providing a default implementation and hooking that up if
      the driver doesn't have an explicit set of handlers.  From Vlad
      Yasevich.

   3) Support GSO segmentation over tunnels and other encapsulating
      devices such as VXLAN, from Pravin B Shelar.

   4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton.

   5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita
      Dukkipati.

   6) In the PHY layer, allow supporting wake-on-lan in situations where
      the PHY registers have to be written for it to be configured.

      Use it to support wake-on-lan in mv643xx_eth.

      From Michael Stapelberg.

   7) Significantly improve firewire IPV6 support, from YOSHIFUJI
      Hideaki.

   8) Allow multiple packets to be sent in a single transmission using
      network coding in batman-adv, from Martin Hundebøll.

   9) Add support for T5 cxgb4 chips, from Santosh Rastapur.

  10) Generalize the VXLAN forwarding tables so that there is more
      flexibility in configurating various aspects of the endpoints.
      From David Stevens.

  11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver,
      from Dmitry Kravkov.

  12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo
      Neira Ayuso.

  13) Start adding networking selftests.

  14) In situations of overload on the same AF_PACKET fanout socket, or
      per-cpu packet receive queue, minimize drop by distributing the
      load to other cpus/fanouts.  From Willem de Bruijn and Eric
      Dumazet.

  15) Add support for new payload offset BPF instruction, from Daniel
      Borkmann.

  16) Convert several drivers over to mdoule_platform_driver(), from
      Sachin Kamat.

  17) Provide a minimal BPF JIT image disassembler userspace tool, from
      Daniel Borkmann.

  18) Rewrite F-RTO implementation in TCP to match the final
      specification of it in RFC4138 and RFC5682.  From Yuchung Cheng.

  19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear
      you like netlink, so I implemented netlink dumping of netlink
      sockets.") From Andrey Vagin.

  20) Remove ugly passing of rtnetlink attributes into rtnl_doit
      functions, from Thomas Graf.

  21) Allow userspace to be able to see if a configuration change occurs
      in the middle of an address or device list dump, from Nicolas
      Dichtel.

  22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes
      Frederic Sowa.

  23) Increase accuracy of packet length used by packet scheduler, from
      Jason Wang.

  24) Beginning set of changes to make ipv4/ipv6 fragment handling more
      scalable and less susceptible to overload and locking contention,
      from Jesper Dangaard Brouer.

  25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*()
      instead.  From Hong Zhiguo.

  26) Optimize route usage in IPVS by avoiding reference counting where
      possible, from Julian Anastasov.

  27) Convert IPVS schedulers to RCU, also from Julian Anastasov.

  28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger
      Eitzenberger.

  29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG,
      nfnetlink_log, and nfnetlink_queue.  From Gao feng.

  30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa.

  31) Support several new r8169 chips, from Hayes Wang.

  32) Support tokenized interface identifiers in ipv6, from Daniel
      Borkmann.

  33) Use usbnet_link_change() helper in USB net driver, from Ming Lei.

  34) Add 802.1ad vlan offload support, from Patrick McHardy.

  35) Support mmap() based netlink communication, also from Patrick
      McHardy.

  36) Support HW timestamping in mlx4 driver, from Amir Vadai.

  37) Rationalize AF_PACKET packet timestamping when transmitting, from
      Willem de Bruijn and Daniel Borkmann.

  38) Bring parity to what's provided by /proc/net/packet socket dumping
      and the info provided by netlink socket dumping of AF_PACKET
      sockets.  From Nicolas Dichtel.

  39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin
      Poirier"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  filter: fix va_list build error
  af_unix: fix a fatal race with bit fields
  bnx2x: Prevent memory leak when cnic is absent
  bnx2x: correct reading of speed capabilities
  net: sctp: attribute printl with __printf for gcc fmt checks
  netlink: kconfig: move mmap i/o into netlink kconfig
  netpoll: convert mutex into a semaphore
  netlink: Fix skb ref counting.
  net_sched: act_ipt forward compat with xtables
  mlx4_en: fix a build error on 32bit arches
  Revert "bnx2x: allow nvram test to run when device is down"
  bridge: avoid OOPS if root port not found
  drivers: net: cpsw: fix kernel warn on cpsw irq enable
  sh_eth: use random MAC address if no valid one supplied
  3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA)
  tg3: fix to append hardware time stamping flags
  unix/stream: fix peeking with an offset larger than data in queue
  unix/dgram: fix peeking with an offset larger than data in queue
  unix/dgram: peek beyond 0-sized skbs
  openvswitch: Remove unneeded ovs_netdev_get_ifindex()
  ...
2013-05-01 14:08:52 -07:00
Andrey Vagin
17afab1de4 selftest: add a test case for PTRACE_PEEKSIGINFO
* Dump signals from process-wide and per-thread queues with
  different sizes of buffers.
* Check error paths for buffers with restricted permissions. A part of
  buffer or a whole buffer is for read-only.
* Try to get nonexistent signal.

Signed-off-by: Andrew Vagin <avagin@openvz.org>
Cc: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Dave Jones <davej@redhat.com>
Cc: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Pedro Alves <palves@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30 17:04:05 -07:00
Pavel Emelyanov
58c7be84fe selftest: add simple test for soft-dirty bit
It creates a mapping of 3 pages and checks that reads, writes and
clear-refs result in present and soft-dirt bits reported from pagemap2
set as expected.

[akpm@linux-foundation.org: alphasort the Makefile TARGETS to reduce rejects]
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30 17:04:01 -07:00
Linus Torvalds
5415ba99c2 A couple of fixes to handle a config file that tests multiple machines
and has conflicts it the grub menus. That is, if the machines use
 the same grub menu name, but they are at different locations in the
 menu.lst file.
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 Version: GnuPG v1.4.12 (GNU/Linux)
 
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 okmD8UM0aL/LKkhSHO1LlPusl+3nCF1cW9BNAEZ1b+orP/ipLL971s3tE1pJjfQU
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 tD0cQ3P2IbrDFx7Wm25JMcmM+9GumClIwGF96Q+9WRhEyY3w0j7VNGtsdL1ktSw=
 =98Xp
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Merge tag 'ktest-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest

Pull ktest update from Steven Rostedt:
 "A couple of fixes to handle a config file that tests multiple machines
  and has conflicts it the grub menus.  That is, if the machines use the
  same grub menu name, but they are at different locations in the
  menu.lst file"

* tag 'ktest-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
  ktest: Reset grub menu cache with different machines
  ktest: Allow tests to use different GRUB_MENUs
2013-04-29 13:57:29 -07:00
Daniel Borkmann
fdd5f43a1b selftests: psock_tpacket: fix status check
Testing like this for TP_STATUS_AVAILABLE clearly is a stupid bug
since it always returns true. Fix this by only checking for flags
where the kernel owns the packet and negate this result, since we
also could run into the non-zero status TP_STATUS_WRONG_FORMAT
and need to reclaim frames.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-29 12:26:53 -04:00
Steven Rostedt (Red Hat)
df5f7c6601 ktest: Reset grub menu cache with different machines
Different tests may use a different machine. In such cases, we need to
try to get the current grub menu index. If the same grub menu is used
for two different machines, it may not be at the same index on the
second machine. A search for the index must be performed again.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-04-24 16:03:30 -04:00
David S. Miller
cf27014866 net: Add .gitignore to networking selftests directory.
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-19 16:36:12 -04:00
Daniel Borkmann
23a9544206 selftests: net: add PF_PACKET TPACKET v1/v2/v3 selftests
This patch adds a simple test case that probes the packet socket's
TPACKET_V1, TPACKET_V2 and TPACKET_V3 behavior regarding mmap(2)'ed
I/O for a small burst of 100 packets. The test currently runs for ...

  TPACKET_V1: RX_RING, TX_RING
  TPACKET_V2: RX_RING, TX_RING
  TPACKET_V3: RX_RING

... and will output on success:

  test: TPACKET_V1 with PACKET_RX_RING .................... 100 pkts (9600 bytes)
  test: TPACKET_V1 with PACKET_TX_RING .................... 100 pkts (9600 bytes)
  test: TPACKET_V2 with PACKET_RX_RING .................... 100 pkts (9600 bytes)
  test: TPACKET_V2 with PACKET_TX_RING .................... 100 pkts (9600 bytes)
  test: TPACKET_V3 with PACKET_RX_RING .................... 100 pkts (9600 bytes)
  OK. All tests passed

Reusable parts of psock_fanout.c have been put into a psock_lib.h
file for common usage. Test case successfully tested on x86_64.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07 17:02:24 -04:00
Willem de Bruijn
98e821a2a9 net: fix psock_fanout on sparc64
The packetsocket fanout test uses a packet ring. Use TPACKET_V2
instead of TPACKET_V1 to work around a known 32/64 bit issue in
the older ring that manifests on sparc64.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21 14:31:36 -04:00
David S. Miller
a6f68034de net: Move selftests to common net/ subdirectory.
Suggested-by: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20 15:07:56 -04:00
Daniel Baluta
4c1d8d0617 net: fix psock_fanout selftest bind error message
Signed-off-by: Daniel Baluta <dbaluta@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20 13:42:41 -04:00
Willem de Bruijn
23a9072e3a net: fix psock_fanout selftest hash collision
Fix flaky results with PACKET_FANOUT_HASH depending on whether the
two flows hash into the same packet socket or not.

Also adds tests for PACKET_FANOUT_LB and PACKET_FANOUT_CPU and
replaces the counting method with a packet ring.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20 12:33:18 -04:00
David S. Miller
b44540ea02 net: Get rid of compat defines in psock_fanout.c selftest.
Reported-by: Daniel Baluta <dbaluta@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19 18:08:45 -04:00
David S. Miller
947124460d net: Fix failure string in net-socket selftests Makefile.
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19 17:15:14 -04:00
Willem de Bruijn
77f65ebdca packet: packet fanout rollover during socket overload
Changes:
  v3->v2: rebase (no other changes)
          passes selftest
  v2->v1: read f->num_members only once
          fix bug: test rollover mode + flag

Minimize packet drop in a fanout group. If one socket is full,
roll over packets to another from the group. Maintain flow
affinity during normal load using an rxhash fanout policy, while
dispersing unexpected traffic storms that hit a single cpu, such
as spoofed-source DoS flows. Rollover breaks affinity for flows
arriving at saturated sockets during those conditions.

The patch adds a fanout policy ROLLOVER that rotates between sockets,
filling each socket before moving to the next. It also adds a fanout
flag ROLLOVER. If passed along with any other fanout policy, the
primary policy is applied until the chosen socket is full. Then,
rollover selects another socket, to delay packet drop until the
entire system is saturated.

Probing sockets is not free. Selecting the last used socket, as
rollover does, is a greedy approach that maximizes chance of
success, at the cost of extreme load imbalance. In practice, with
sufficiently long queues to absorb bursts, sockets are drained in
parallel and load balance looks uniform in `top`.

To avoid contention, scales counters with number of sockets and
accesses them lockfree. Values are bounds checked to ensure
correctness.

Tested using an application with 9 threads pinned to CPUs, one socket
per thread and sufficient busywork per packet operation to limits each
thread to handling 32 Kpps. When sent 500 Kpps single UDP stream
packets, a FANOUT_CPU setup processes 32 Kpps in total without this
patch, 270 Kpps with the patch. Tested with read() and with a packet
ring (V1).

Also, passes psock_fanout.c unit test added to selftests.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19 17:15:04 -04:00
David S. Miller
b0aa73bf08 net: Add socket() system call self test.
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19 14:49:44 -04:00
Steven Rostedt (Red Hat)
752d96657c ktest: Allow tests to use different GRUB_MENUs
To save connecting and searching for a given grub menu for each test,
ktest.pl will cache the grub number it found. The problem is that
different tests might use a different grub menu, but ktest.pl will
ignore it.

Instead, have ktest.pl check if the grub menu it used to cache the
content is the same as when it grabbed the menu. If not, grab it again,
otherwise just return the cached value.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-03-08 09:33:35 -05:00
Matt Fleming
123abd76ed efivars: efivarfs_valid_name() should handle pstore syntax
Stricter validation was introduced with commit da27a24383
("efivarfs: guid part of filenames are case-insensitive") and commit
47f531e8ba ("efivarfs: Validate filenames much more aggressively"),
which is necessary for the guid portion of efivarfs filenames, but we
don't need to be so strict with the first part, the variable name. The
UEFI specification doesn't impose any constraints on variable names
other than they be a NULL-terminated string.

The above commits caused a regression that resulted in users seeing
the following message,

  $ sudo mount -v /sys/firmware/efi/efivars mount: Cannot allocate memory

whenever pstore EFI variables were present in the variable store,
since their variable names failed to pass the following check,

    /* GUID should be right after the first '-' */
    if (s - 1 != strchr(str, '-'))

as a typical pstore filename is of the form, dump-type0-10-1-<guid>.
The fix is trivial since the guid portion of the filename is GUID_LEN
bytes, we can use (len - GUID_LEN) to ensure the '-' character is
where we expect it to be.

(The bogus ENOMEM error value will be fixed in a separate patch.)

Reported-by: Joseph Yasi <joe.yasi@gmail.com>
Tested-by: Joseph Yasi <joe.yasi@gmail.com>
Reported-by: Lingzhu Xiang <lxiang@redhat.com>
Cc: Josh Boyer <jwboyer@redhat.com>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: <stable@vger.kernel.org> # v3.8
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2013-03-06 14:46:04 +00:00
Jeremy Kerr
80d0342859 selftests: add a simple doc
This change adds a little documentation to the tests under
tools/testing/selftests/, based on akpm's explanation.

[akpm@linux-foundation.org: move from Documentation to tools/testing/selftests/README.txt]
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Cc: Dave Young <dyoung@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 19:10:24 -08:00
Andrew Morton
66a01b9659 tools/testing/selftests/Makefile: rearrange targets
Do it one-per-line to reduce patch conflict pain.

Cc: Dave Young <dyoung@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 19:10:24 -08:00
Jeremy Kerr
d974f67a52 selftests/efivarfs: add create-read test
Test that reads from a newly-created efivarfs file (with no data written)
will return EOF.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: Lingzhu Xiang <lxiang@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 19:10:24 -08:00
Jeremy Kerr
033a1a7fe7 selftests/efivarfs: add empty file creation test
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: Lingzhu Xiang <lxiang@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 19:10:24 -08:00
Jeremy Kerr
455ce1c721 selftests: add tests for efivarfs
This change adds a few initial efivarfs tests to the
tools/testing/selftests directory.

The open-unlink test is based on code from Lingzhu Xiang.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: Lingzhu Xiang <lxiang@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 19:10:24 -08:00
Steven Rostedt (Red Hat)
7328735cbf ktest: Remove indexes from warnings check
The index of a line where a warning is tested can be returned
differently on different versions of gcc (or same version compiled
differently). That is, a tab + space can give different results. This
causes the warning check to produce a false positive. Removing the
index from the check fixes this issue.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-02-18 09:35:49 -05:00
Steven Rostedt (Red Hat)
4c0b67a27d ktest: Ignore warnings during reboot
The reboot just wants to get to the next kernel. But if a warning (Call
Trace) appears, the monitor will report an error, and the reboot will
think something went wrong and power cycle the box, even though we
successfully made it to the next kernel.

Ignore warnings during the reboot until we get to the next kernel. It
will still timeout if we never get to the next kernel and then a power
cycle will happen. That's what we want it to do.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-02-05 10:02:37 -05:00
Steven Rostedt (Red Hat)
d684553623 ktest: Search for linux banner for successful reboot
Sometimes when a test kernel passed fine, but on reboot it crashed,
ktest could get stuck and not proceed. This would be frustrating if you
let a test run overnight to find out the next morning that it was stuck
on the first test.

To fix this, I made reboot check for the REBOOT_SUCCESS_LINE. If the
line was not detected, then it would power cycle the box.

What it didn't cover was if the REBOOT_SUCCESS_LINE wasn't defined or if
a 'good' kernel did not display the line. Instead have it search for the
Linux banner "Linux version". The reboot just needs to get to the start
of the next kernel, it does not need to test if the next kernel makes it
to a boot prompt.

After we find the next kernel has booted, then we just wait for either
the REBOOT_SUCCESS_LINE to appear or the timeout.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-02-05 10:00:20 -05:00
Steven Rostedt (Red Hat)
4283b169ab ktest: Add make_warnings_file and process full warnings
Although the patchcheck test checks for warnings in the files that were
changed, this check does not catch warnings that were caused by header
file changes and the warnings appear in C files not touched by the
commit.

Add a new option called WARNINGS_FILE. If this option is set, then the
file it points to is read before bulid, and the file should contain a
list of known warnings. If a warning appears in the build, this file is
checked, and if the warning does not exist in this file, then it fails
the build showing the new warning.

If the WARNINGS_FILE points to a file that does not exist, this will
cause any warning in the build to fail.

A new test is also added called "make_warnings_file". This test will
create do a build and record any warnings it finds into the
WARNINGS_FILE. This test is something that can be run before other tests
to build a warnings file of "known warnings", ie, warnings that were
there before your changes.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-01-31 10:24:56 -05:00
Steven Rostedt (Red Hat)
04262be3db ktest: Allow a test option to use its default option
Options are allowed to use other options, for example:

  LOG_FILE = ${OUTPUT_DIR}/${MACHINE}.log

where the option LOG_FILE used the options OUTPUT_DIR and MACHINE.

But if a test option were to use a default option, it will not get
substituted:

  OUTPUT_DIR = ${THIS_DIR}/${MACHINE}

  TEST_START
  OUTPUT_DIR = ${OUTPUT_DIR}/t1

For the above test, OUTPUT_DIR will stay literally "${OUTPUT_DIR}/t1"
and not be converted to "${THIS_DIR}/${MACHINE}/t1". When the test runs,
it will pass the ${OUTPUT_DIR} to the shell, which would probaly
interpret it as "", and the output directory will end up as "/t1".

Change the code where if a test option has its own option name in
its defined field, and a default option exists, then substitute the
default option in its place.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-01-31 10:24:53 -05:00
Steven Rostedt (Red Hat)
35275685bf ktest: Strip off '\n' when reading which files were modified
The patchcheck test looks at what files are modified for each patch it
checks and makes sure that those files do not produce any warnings.

Unfortunately, when it read the diffstat, the newlines were added on the
files and this made compares miss warnings, and commits that should not
have passed, ktest let pass.

Fix this by using the perl command "chomp" that strips off whitespace at
the end of lines.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-01-30 12:28:15 -05:00
Steven Rostedt (Red Hat)
319ab14f05 ktest: Do not require CONSOLE for build or install bisects
If the user is doing a build or install bisect, there's no reason to
have them define CONSOLE, as the console does not need to be read. The
console only needs to be read for boot tests.

CONSOLE is not required for normal build or install tests, let's not
require it for bisect tests with BISECT_TYPE of build or install.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-01-30 12:25:38 -05:00
Stanislav Kinsbursky
3a665531a3 selftests: IPC message queue copy feature test
This test can be used to check wheither kernel supports IPC message queue
copy and restore features (required by CRIU project).

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Cc: Serge Hallyn <serge.hallyn@canonical.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-04 16:11:45 -08:00
Dave Jones
2bf1cbf1c6 tools/testing/selftests/kcmp/kcmp_test.c: print reason for failure in kcmp_test
I was curious why sys_kcmp wasn't working, which led me to the testcase.
It turned out I hadn't enabled CHECKPOINT_RESTORE in the kernel I was
testing.  Add a decoding of errno to the testcase to make that obvious.

Signed-off-by: Dave Jones <davej@redhat.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 17:15:27 -08:00
Dave Young
5a55f8bb2d breakpoint selftests: print failure status instead of cause make error
In case breakpoint test exit non zero value it will cause make error.
Better way is just print the test failure status.

Signed-off-by: Dave Young <dyoung@redhat.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 17:15:27 -08:00
Dave Young
ed8ad10c3b kcmp selftests: print fail status instead of cause make error
In case kcmp_test exit non zero value it will cause make error.
Better way is just print the test failure status.

Signed-off-by: Dave Young <dyoung@redhat.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 17:15:27 -08:00
Dave Young
63d233673a kcmp selftests: make run_tests fix
make run_tests need the target is run_tests instead of run-tests
Also gcc output should be kcmp_test. Fix these two issues.

Signed-off-by: Dave Young <dyoung@redhat.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 17:15:27 -08:00
Dave Young
aabccae6e9 mem-hotplug selftests: print failure status instead of cause make error
Original behavior:
  bash-4.1$ make -C memory-hotplug run_tests
  make: Entering directory `/home/dave/git/linux-2.6/tools/testing/selftests/memory-hotplug'
  ./on-off-test.sh
  make: execvp: ./on-off-test.sh: Permission denied
  make: *** [run_tests] Error 127
  make: Leaving directory `/home/dave/git/linux-2.6/tools/testing/selftests/memory-hotplug'

After applying the patch:
  bash-4.1$ make -C memory-hotplug run_tests
  make: Entering directory `/home/dave/git/linux-2.6/tools/testing/selftests/memory-hotplug'
  /bin/sh: ./on-off-test.sh: Permission denied
  memory-hotplug selftests: [FAIL]
  make: Leaving directory `/home/dave/git/linux-2.6/tools/testing/selftests/memory-hotplug'

Signed-off-by: Dave Young <dyoung@redhat.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 17:15:27 -08:00
Dave Young
a58130ddc8 cpu-hotplug selftests: print failure status instead of cause make error
Original behavior:
  bash-4.1$ make -C cpu-hotplug run_tests
  make: Entering directory `/home/dave/git/linux-2.6/tools/testing/selftests/cpu-hotplug'
  ./on-off-test.sh
  make: execvp: ./on-off-test.sh: Permission denied
  make: *** [run_tests] Error 127
  make: Leaving directory `/home/dave/git/linux-2.6/tools/testing/selftests/cpu-hotplug'

After applying the patch:
  bash-4.1$ make -C cpu-hotplug run_tests
  make: Entering directory `/home/dave/git/linux-2.6/tools/testing/selftests/cpu-hotplug'
  /bin/sh: ./on-off-test.sh: Permission denied
  cpu-hotplug selftests: [FAIL]
  make: Leaving directory `/home/dave/git/linux-2.6/tools/testing/selftests/cpu-hotplug'

Signed-off-by: Dave Young <dyoung@redhat.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 17:15:27 -08:00
Dave Young
9ed1d90ed1 mqueue selftests: print failure status instead of cause make error
Original behavior:
  bash-4.1$ make -C mqueue run_tests
  make: Entering directory `/home/dave/git/linux-2.6/tools/testing/selftests/mqueue'
  ./mq_open_tests /test1
  Not running as root, but almost all tests require root in order to modify
  system settings.  Exiting.
  make: *** [run_tests] Error 1
  make: Leaving directory `/home/dave/git/linux-2.6/tools/testing/selftests/mqueue'

After applying the patch:
  bash-4.1$ make -C mqueue run_tests
  make: Entering directory `/home/dave/git/linux-2.6/tools/testing/selftests/mqueue'
  Not running as root, but almost all tests require root in order to modify
  system settings.  Exiting.
  mq_open_tests: [FAIL]
  Not running as root, but almost all tests require root in order to modify
  system settings.  Exiting.
  mq_perf_tests: [FAIL]
  make: Leaving directory `/home/dave/git/linux-2.6/tools/testing/selftests/mqueue'

Signed-off-by: Dave Young <dyoung@redhat.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 17:15:26 -08:00
Dave Young
000e06b01f vm selftests: print failure status instead of cause make error
Original behavior:
  bash-4.1$ make -C vm run_tests
  make: Entering directory `/home/dave/git/linux-2.6/tools/testing/selftests/vm'
  /bin/sh ./run_vmtests
  ./run_vmtests: line 24: /proc/sys/vm/nr_hugepages: Permission denied
  Please run this test as root
  make: *** [run_tests] Error 1
  make: Leaving directory `/home/dave/git/linux-2.6/tools/testing/selftests/vm'

After applying the patch:
  bash-4.1$ make -C vm run_tests
  make: Entering directory `/home/dave/git/linux-2.6/tools/testing/selftests/vm'
  ./run_vmtests: line 24: /proc/sys/vm/nr_hugepages: Permission denied
  Please run this test as root
  vmtests: [FAIL]
  make: Leaving directory `/home/dave/git/linux-2.6/tools/testing/selftests/vm'

Signed-off-by: Dave Young <dyoung@redhat.com>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-17 17:15:26 -08:00
Linus Torvalds
e05a1c6397 ktest update for v3.8
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Merge tag 'ktest-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest

Pull ktest update from Steven Rostedt:
 "fixes and updated for new boot loaders"

* tag 'ktest-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
  ktest: Test if target machine is up before install
  ktest: Fix breakage from change of oldnoconfig to olddefconfig
  ktest: Add native support for syslinux boot loader
  ktest: Sync before reboot
  ktest: Add support for grub2
2012-12-13 18:03:21 -08:00
Steven Rostedt
e1a6c3d748 ktest: Test if target machine is up before install
Sometimes a test kernel will crash or hang on reboot (this is even more
apparent when testing a config without CGROUPS on a box running
systemd). When this happens, on the next iteration of installing a
kernel, ktest will fail when it tries to install.

Have ktest do a check to see if the target can be connected to via ssh
before it tries to install. If it can't connect, then reboot again.
This time the reboot will fail because it can't connect and will force a
power cycle.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-12-11 21:19:41 -05:00
Steven Rostedt
1892517056 ktest: Fix breakage from change of oldnoconfig to olddefconfig
Commit fb16d891 "kconfig: replace 'oldnoconfig' with 'olddefconfig', and
keep the old name", changed ktest's default config update from
oldnoconfig to olddefconfig without adding oldnoconfig as a backup.
The make oldnoconfig works much better than its backup of:
   yes '' | make oldconfig

But due to this change, and the fact that ktest is used to build lots of
older kernels (and for bisects), it forgoes the oldnoconfig completely.

Cc: Adam Lee <adam8157@gmail.com>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-12-11 20:23:22 -05:00
Andi Kleen
fcc1f2d5dd selftests: add a test program for variable huge page sizes in mmap/shmget
Also remove -Wextra because gcc-4.6 emits lots of irritating
signed/unsigned comparison warnings.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-11 17:22:25 -08:00
Steven Rostedt
7786954c95 ktest: Add native support for syslinux boot loader
I installed Fedora 17 which no longer supports grub v1. I worked
with grub2 for a while, but there's so many issues with it and automated
rebooting, that I decided to switch to syslinux. Instead of using
the REBOOT_SCRIPT and add customized changes to get syslinux booted,
I thought it better to make ktest aware of syslinux and add options
to simplify the use of syslinux on a target test box.

Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: John 'Warthog9' Hawley <warthog9@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-12-11 18:18:46 -05:00
Steven Rostedt
a496872212 ktest: Sync before reboot
Before rebooting the target, run the sync command, as it seems that
either Grub2 or systemd gets screwed up if you update to reboot a kernel
once and do a reboot without doing a sync.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-12-11 14:59:05 -05:00
Steven Rostedt
a15ba91361 ktest: Add support for grub2
As only grub or 'script' is supported for rebooting to a new kernel,
and Fedora 17 has dropped support for grub, I decided to add grub2
support as well (I also plan on adding syslinux/extlinux support too).

The options GRUB_FILE and GRUB_REBOOT were added to allow the user
to specify where to find the grub.cfg and what tool to use to reboot
into the next kernel respectively.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-11-13 14:30:37 -05:00
Andrew Morton
a80a6b85b4 revert "epoll: support for disabling items, and a self-test app"
Revert commit 03a7beb55b ("epoll: support for disabling items, and a
self-test app") pending resolution of the issues identified by Michael
Kerrisk, copied below.

We'll revisit this for 3.8.

: I've taken a look at this patch as it currently stands in 3.7-rc1, and
: done a bit of testing. (By the way, the test program
: tools/testing/selftests/epoll/test_epoll.c does not compile...)
:
: There are one or two places where the behavior seems a little strange,
: so I have a question or two at the end of this mail. But other than
: that, I want to check my understanding so that the interface can be
: correctly documented.
:
: Just to go though my understanding, the problem is the following
: scenario in a multithreaded application:
:
: 1. Multiple threads are performing epoll_wait() operations,
:    and maintaining a user-space cache that contains information
:    corresponding to each file descriptor being monitored by
:    epoll_wait().
:
: 2. At some point, a thread wants to delete (EPOLL_CTL_DEL)
:    a file descriptor from the epoll interest list, and
:    delete the corresponding record from the user-space cache.
:
: 3. The problem with (2) is that some other thread may have
:    previously done an epoll_wait() that retrieved information
:    about the fd in question, and may be in the middle of using
:    information in the cache that relates to that fd. Thus,
:    there is a potential race.
:
: 4. The race can't solved purely in user space, because doing
:    so would require applying a mutex across the epoll_wait()
:    call, which would of course blow thread concurrency.
:
: Right?
:
: Your solution is the EPOLL_CTL_DISABLE operation. I want to
: confirm my understanding about how to use this flag, since
: the description that has accompanied the patches so far
: has been a bit sparse
:
: 0. In the scenario you're concerned about, deleting a file
:    descriptor means (safely) doing the following:
:    (a) Deleting the file descriptor from the epoll interest list
:        using EPOLL_CTL_DEL
:    (b) Deleting the corresponding record in the user-space cache
:
: 1. It's only meaningful to use this EPOLL_CTL_DISABLE in
:    conjunction with EPOLLONESHOT.
:
: 2. Using EPOLL_CTL_DISABLE without using EPOLLONESHOT in
:    conjunction is a logical error.
:
: 3. The correct way to code multithreaded applications using
:    EPOLL_CTL_DISABLE and EPOLLONESHOT is as follows:
:
:    a. All EPOLL_CTL_ADD and EPOLL_CTL_MOD operations should
:       should EPOLLONESHOT.
:
:    b. When a thread wants to delete a file descriptor, it
:       should do the following:
:
:       [1] Call epoll_ctl(EPOLL_CTL_DISABLE)
:       [2] If the return status from epoll_ctl(EPOLL_CTL_DISABLE)
:           was zero, then the file descriptor can be safely
:           deleted by the thread that made this call.
:       [3] If the epoll_ctl(EPOLL_CTL_DISABLE) fails with EBUSY,
:           then the descriptor is in use. In this case, the calling
:           thread should set a flag in the user-space cache to
:           indicate that the thread that is using the descriptor
:           should perform the deletion operation.
:
: Is all of the above correct?
:
: The implementation depends on checking on whether
: (events & ~EP_PRIVATE_BITS) == 0
: This replies on the fact that EPOLL_CTL_AD and EPOLL_CTL_MOD always
: set EPOLLHUP and EPOLLERR in the 'events' mask, and EPOLLONESHOT
: causes those flags (as well as all others in ~EP_PRIVATE_BITS) to be
: cleared.
:
: A corollary to the previous paragraph is that using EPOLL_CTL_DISABLE
: is only useful in conjunction with EPOLLONESHOT. However, as things
: stand, one can use EPOLL_CTL_DISABLE on a file descriptor that does
: not have EPOLLONESHOT set in 'events' This results in the following
: (slightly surprising) behavior:
:
: (a) The first call to epoll_ctl(EPOLL_CTL_DISABLE) returns 0
:     (the indicator that the file descriptor can be safely deleted).
: (b) The next call to epoll_ctl(EPOLL_CTL_DISABLE) fails with EBUSY.
:
: This doesn't seem particularly useful, and in fact is probably an
: indication that the user made a logic error: they should only be using
: epoll_ctl(EPOLL_CTL_DISABLE) on a file descriptor for which
: EPOLLONESHOT was set in 'events'. If that is correct, then would it
: not make sense to return an error to user space for this case?

Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: "Paton J. Lewis" <palewis@adobe.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-11-09 06:41:46 +01:00
Linus Torvalds
5a5210c6ad With the v3.7-rc2 kernel, the network cards on my target boxes
were not being brought up. I found that the modules for the
 network was not being installed. This was due to the config
 CONFIG_MODULES_USE_ELF_RELA that came before CONFIG_MODULES, and
 confused ktest in thinking that CONFIG_MODULES=y was not found.
 
 Ktest needs to test all configs and not just stop if something starts
 with CONFIG_MODULES.
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Merge tag 'ktest-v3.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest

Pull ktest confusion fix from Steven Rostedt:
 "With the v3.7-rc2 kernel, the network cards on my target boxes were
  not being brought up.

  I found that the modules for the network was not being installed.
  This was due to the config CONFIG_MODULES_USE_ELF_RELA that came
  before CONFIG_MODULES, and confused ktest in thinking that
  CONFIG_MODULES=y was not found.

  Ktest needs to test all configs and not just stop if something starts
  with CONFIG_MODULES."

* tag 'ktest-v3.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
  ktest: Fix ktest confusion with CONFIG_MODULES_USE_ELF_RELA
2012-10-28 11:14:52 -07:00
Steven Rostedt
8bc5e4ea3e ktest: Fix ktest confusion with CONFIG_MODULES_USE_ELF_RELA
In order to decide if ktest should bother installing modules on the
target box, it checks if the config file has CONFIG_MODULES=y. But it
also checks if the '=y' part exists. It only will install modules if the
config exists and is set with '=y'. But as the regex that was used
tests:

  /^CONFIG_MODULES(=y)?/

this will also match:

  CONFIG_MODULES_USE_ELF_RELA

as the '=y' part was optional and it did not test the rest of the line.
When this happens, ktest will stop checking the rest of the configs but
it will also think that no modules are needed to be installed. What it
should do is only jump out of the loop if it actually found a
CONFIG_MODULES that is set to true.

Otherwise, ktest wont install the necessary modules needed for proper
booting of the test target.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-10-26 00:10:32 -04:00
Daniel Hazelton
fc314d0a4a tools/testing/selftests/epoll/test_epoll.c: fix build
Latest Linus head run of "make selftests" in the tools directory failed
with references to undefined variables.  Reference was to
'write_thread_data' which is the name of a struct that is being used, not
the variable itself.  Change reference so it points to the variable.

Signed-off-by: Daniel Hazelton <dshadowwolf@gmail.com>
Cc: "Paton J. Lewis" <palewis@adobe.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-25 14:37:53 -07:00
Linus Torvalds
35e9a274fd Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kconfig changes from Michal Marek:
 "kconfig in v3.7 is going to
   - initialize ncurses only once in menuconfig
   - be able to jump to a search result in menuconfig
   - change the misnomer oldnoconfig to a more meaningful name
     olddefconfig, keeping the old name as alias"

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  kconfig: replace 'oldnoconfig' with 'olddefconfig', and keep the old name as an alias
  menuconfig: Assign jump keys per-page instead of globally
  menuconfig: Do not open code textbox scroll up/down
  menuconfig: Add jump keys to search results
  menuconfig: Extend dialog_textbox so that it can return to a scrolled position
  menuconfig: Extend dialog_textbox so that it can exit on arbitrary keypresses
  menuconfig: Remove superfluous conditionnal
  kconfig: document oldnoconfig to what it really does in conf.c
  kconfig/mconf.c: revision of curses initialization.
2012-10-12 10:28:52 +09:00
Paton J. Lewis
03a7beb55b epoll: support for disabling items, and a self-test app
Enhanced epoll_ctl to support EPOLL_CTL_DISABLE, which disables an epoll
item.  If epoll_ctl doesn't return -EBUSY in this case, it is then safe to
delete the epoll item in a multi-threaded environment.  Also added a new
test_epoll self- test app to both demonstrate the need for this feature
and test it.

Signed-off-by: Paton J. Lewis <palewis@adobe.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Paul Holland <pholland@adobe.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-06 03:05:00 +09:00
Linus Torvalds
6977b4c773 ktest update for v3.7
Fix parsing of ELSE IF in reading config file.
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Merge tag 'ktest-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest

Pull ktest fix from Steven Rostedt:
 "ktest has one fix needed for this merge window - fix parsing of ELSE
  IF in reading config file"

* tag 'ktest-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
  ktest: Fix ELSE IF statements
2012-10-01 10:13:47 -07:00
Linus Torvalds
99dbb1632f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull the trivial tree from Jiri Kosina:
 "Tiny usual fixes all over the place"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits)
  doc: fix old config name of kprobetrace
  fs/fs-writeback.c: cleanup riteback_sb_inodes kerneldoc
  btrfs: fix the commment for the action flags in delayed-ref.h
  btrfs: fix trivial typo for the comment of BTRFS_FREE_INO_OBJECTID
  vfs: fix kerneldoc for generic_fh_to_parent()
  treewide: fix comment/printk/variable typos
  ipr: fix small coding style issues
  doc: fix broken utf8 encoding
  nfs: comment fix
  platform/x86: fix asus_laptop.wled_type module parameter
  mfd: printk/comment fixes
  doc: getdelays.c: remember to close() socket on error in create_nl_socket()
  doc: aliasing-test: close fd on write error
  mmc: fix comment typos
  dma: fix comments
  spi: fix comment/printk typos in spi
  Coccinelle: fix typo in memdup_user.cocci
  tmiofb: missing NULL pointer checks
  tools: perf: Fix typo in tools/perf
  tools/testing: fix comment / output typos
  ...
2012-10-01 09:06:36 -07:00
Adam Lee
fb16d8912d kconfig: replace 'oldnoconfig' with 'olddefconfig', and keep the old name as an alias
As 67d34a6a39 said, 'oldnoconfig' doesn't
set new symbols to 'n', but instead sets it to their default values.

So, this patch replaces 'oldnoconfig' with 'olddefconfig', stop making
people confused, and keep the old name 'oldnoconfig' as an alias,
because people already are dependent on its behavior with the
counter-intuitive name.

Signed-off-by: Adam Lee <adam8157@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-09-27 18:18:07 +02:00
Steven Rostedt
95f5783841 ktest: Fix ELSE IF statements
The ELSE IF statements do not work as expected if another ELSE statement
follows. This is because the $if_set is not set. If the ELSE IF
condition is true, the following ELSE should be ignored. But because the
$if_set is not set, the following ELSE will also be executed.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-09-26 14:48:17 -04:00
Masanari Iida
ce8283d56c tools/testing: fix comment / output typos
Correct spelling typo in tools/testing

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-09-01 08:48:19 -07:00
Akinobu Mita
d6b09e754c fault-injection: fix failcmd.sh warning
"fault-injection: add tool to run command with failslab or
fail_page_alloc" added tools/testing/fault-injection/failcmd.sh to make it
easier to inject slab/page allocation failures by fault injection.

failcmd.sh prints the following warning when running with arguments
for command.

	# ./failcmd.sh echo aaa
	failcmd.sh: line 209: [: echo: binary operator expected
	aaa

This warning is caused by an improper check whether at least one
parameter is left after parsing command options.

Fix it by testing the length of $1 instead of $@

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-31 18:42:38 -07:00
Linus Torvalds
27c1ee3f92 Merge branch 'akpm' (Andrew's patch-bomb)
Merge Andrew's first set of patches:
 "Non-MM patches:

   - lots of misc bits

   - tree-wide have_clk() cleanups

   - quite a lot of printk tweaks.  I draw your attention to "printk:
     convert the format for KERN_<LEVEL> to a 2 byte pattern" which
     looks a bit scary.  But afaict it's solid.

   - backlight updates

   - lib/ feature work (notably the addition and use of memweight())

   - checkpatch updates

   - rtc updates

   - nilfs updates

   - fatfs updates (partial, still waiting for acks)

   - kdump, proc, fork, IPC, sysctl, taskstats, pps, etc

   - new fault-injection feature work"

* Merge emailed patches from Andrew Morton <akpm@linux-foundation.org>: (128 commits)
  drivers/misc/lkdtm.c: fix missing allocation failure check
  lib/scatterlist: do not re-write gfp_flags in __sg_alloc_table()
  fault-injection: add tool to run command with failslab or fail_page_alloc
  fault-injection: add selftests for cpu and memory hotplug
  powerpc: pSeries reconfig notifier error injection module
  memory: memory notifier error injection module
  PM: PM notifier error injection module
  cpu: rewrite cpu-notifier-error-inject module
  fault-injection: notifier error injection
  c/r: fcntl: add F_GETOWNER_UIDS option
  resource: make sure requested range is included in the root range
  include/linux/aio.h: cpp->C conversions
  fs: cachefiles: add support for large files in filesystem caching
  pps: return PTR_ERR on error in device_create
  taskstats: check nla_reserve() return
  sysctl: suppress kmemleak messages
  ipc: use Kconfig options for __ARCH_WANT_[COMPAT_]IPC_PARSE_VERSION
  ipc: compat: use signed size_t types for msgsnd and msgrcv
  ipc: allow compat IPC version field parsing if !ARCH_WANT_OLD_COMPAT_IPC
  ipc: add COMPAT_SHMLBA support
  ...
2012-07-30 17:25:34 -07:00
Akinobu Mita
c24aa64d16 fault-injection: add tool to run command with failslab or fail_page_alloc
This adds tools/testing/fault-injection/failcmd.sh to run a command while
injecting slab/page allocation failures via fault injection.

Example:

Run a command "make -C tools/testing/selftests/ run_tests" with
injecting slab allocation failure.

	# ./tools/testing/fault-injection/failcmd.sh \
		-- make -C tools/testing/selftests/ run_tests

Same as above except to specify 100 times failures at most instead of
one time at most by default.

	# ./tools/testing/fault-injection/failcmd.sh --times=100 \
		-- make -C tools/testing/selftests/ run_tests

Same as above except to inject page allocation failure instead of slab
allocation failure.

	# env FAILCMD_TYPE=fail_page_alloc \
		./tools/testing/fault-injection/failcmd.sh --times=100 \
		-- make -C tools/testing/selftests/ run_tests

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:22 -07:00
Akinobu Mita
d89dffa976 fault-injection: add selftests for cpu and memory hotplug
This adds two selftests

* tools/testing/selftests/cpu-hotplug/on-off-test.sh is testing script
for CPU hotplug

1. Online all hot-pluggable CPUs
2. Offline all hot-pluggable CPUs
3. Online all hot-pluggable CPUs again
4. Exit if cpu-notifier-error-inject.ko is not available
5. Offline all hot-pluggable CPUs in preparation for testing
6. Test CPU hot-add error handling by injecting notifier errors
7. Online all hot-pluggable CPUs in preparation for testing
8. Test CPU hot-remove error handling by injecting notifier errors

* tools/testing/selftests/memory-hotplug/on-off-test.sh is doing the
similar thing for memory hotplug.

1. Online all hot-pluggable memory
2. Offline 10% of hot-pluggable memory
3. Online all hot-pluggable memory again
4. Exit if memory-notifier-error-inject.ko is not available
5. Offline 10% of hot-pluggable memory in preparation for testing
6. Test memory hot-add error handling by injecting notifier errors
7. Online all hot-pluggable memory in preparation for testing
8. Test memory hot-remove error handling by injecting notifier errors

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Greg KH <greg@kroah.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:22 -07:00
Steven Rostedt
8fddbe9bbf ktest: Allow perl regex expressions in conditional statements
Add '=~' and '!~' to the list of allowed conditionals for DEFAULT and
TEST_START section if statements.

ie.

 TEST_START IF TEST =~ .*test$

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-30 14:37:01 -04:00
Steven Rostedt
9b1d367dbb ktest: Ignore errors it tests if IGNORE_ERRORS is set
The option IGNORE_ERRORS is used to allow a test to succeed even if a
warning appears from the kernel. Sometimes kernels will produce warnings
that are not associated with a test, and the user wants to test
something else.

The IGNORE_ERRORS works for boot up, but was not preventing test runs to
succeed if the kernel produced a warning.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-30 14:33:55 -04:00
Steven Rostedt
c1434dcc57 ktest: Reset saved min (force) configs for each test
The min configs are saved in a perl hash called force_configs, and this
hash is used to add configs to the .config file. But it was not being
reset between tests and a min config from a previous test would affect
the min config of the next test causing undesirable results.

Reset the force_config hash at the start of each test.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-20 22:39:16 -04:00
Steven Rostedt
8a80c72711 ktest: Add check for bug or panic during reboot
Usually the target is booted into a dependable kernel when a test
starts. The test will install the test kernel and reboot the box. But
there may be a time that the kernel is running an unreliable kernel and
the reboot may crash.

Have ktest detect crashes on a reboot and force a power-cycle instead.

This can usually happen if a test kernel was installed to run manual
tests, but the user forgot to reboot to the known good kernel.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19 16:11:21 -04:00
Steven Rostedt
407b95b7a0 ktest: Add MAX_MONITOR_WAIT option
If the console is constantly outputting content, this can cause ktest
to get stuck waiting on the monitor to settle down.

The option MAX_MONITOR_WAIT is the maximum time (in seconds) for ktest
to wait for the console to flush.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19 16:05:42 -04:00
Steven Rostedt
cf79fab676 ktest: Fix config bisect with how make oldnoconfig works
With a name like 'oldnoconfig' one may think that the config generated
would disable all configs that were not defined (selecting "no" for all
options). But this is not the case. It selects the default. If a config
has a 'default y', then it is added if not specified.

This broke the config bisect, because options not specified by a config
will just use the default, where it expected to turn off. This caused an
option to be enabled that disabled an option that would break the build.
The end result was that we never found the bad config at the end of the
test.

Instead of using 'make oldnoconfig', ktest now builds the options it
expects enabled and disabled. When it turns off an option, it will no
longer remove it, but actually set it to:

 # CONFIG_FOO is not set.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19 15:29:43 -04:00
Steven Rostedt
b091861254 ktest: Add CONFIG_BISECT_CHECK option
The config-bisect can take a bad config and bisect it down to find out
what config actually breaks the config. But as all tests will apply a
minconfig (defined by a user) to apply before booting, it is possible
that the minconfig could actually make the bad config work (minconfigs
can disable configs). The end result is that the config bisect test will
not find a config that breaks. This can be rather frustrating to the
user.

The CONFIG_BISECT_CHECK option, when set to 1, will make sure that the
bad config (with the minconfig applied) still fails before trying to
bisect.

And yes, I did get burned by this.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19 15:26:00 -04:00
Steven Rostedt
e5c2ec11a0 ktest: Add PRE_INSTALL option
Add the PRE_INSTALL option that will allow a user to specify a shell
command to be executed before the install operation executes.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19 15:22:05 -04:00
Steven Rostedt
921ed4c720 ktest: Add PRE/POST_KTEST and TEST options
In order to let the user add commands before and after ktest runs, the
PRE_KTEST and POST_KTEST options are defined. They hold shell commands
that will execute befor ktest runs its first test, as well as when it
completed its last test.

The PRE_TEST and POST_TEST will be run befor and after (respectively)
for a given test. They can either be global (done for all tests) or
defined by a single test.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19 15:18:27 -04:00
Steven Rostedt
958d8435c2 ktest: Remove commented exit
A debug 'exit' was left in ktest.pl. Remove it.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-07-19 15:17:23 -04:00
Cyrill Gorcunov
d97b46a646 syscalls, x86: add __NR_kcmp syscall
While doing the checkpoint-restore in the user space one need to determine
whether various kernel objects (like mm_struct-s of file_struct-s) are
shared between tasks and restore this state.

The 2nd step can be solved by using appropriate CLONE_ flags and the
unshare syscall, while there's currently no ways for solving the 1st one.

One of the ways for checking whether two tasks share e.g.  mm_struct is to
provide some mm_struct ID of a task to its proc file, but showing such
info considered to be not that good for security reasons.

Thus after some debates we end up in conclusion that using that named
'comparison' syscall might be the best candidate.  So here is it --
__NR_kcmp.

It takes up to 5 arguments - the pids of the two tasks (which
characteristics should be compared), the comparison type and (in case of
comparison of files) two file descriptors.

Lookups for pids are done in the caller's PID namespace only.

At moment only x86 is supported and tested.

[akpm@linux-foundation.org: fix up selftests, warnings]
[akpm@linux-foundation.org: include errno.h]
[akpm@linux-foundation.org: tweak comment text]
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Andrey Vagin <avagin@openvz.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Glauber Costa <glommer@parallels.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Vasiliy Kulikov <segoon@openwall.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Valdis.Kletnieks@vt.edu
Cc: Michal Marek <mmarek@suse.cz>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-31 17:49:32 -07:00
Doug Ledford
7820b0715b tools/selftests: add mq_perf_tests
Add the mq_perf_tests tool I used when creating my mq performance patch.
Also add a local .gitignore to keep the binaries from showing up in git
status output.

[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Doug Ledford <dledford@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-31 17:49:31 -07:00
Doug Ledford
50069a5851 selftests: add mq_open_tests
Add a directory to house POSIX message queue subsystem specific tests.
Add first test which checks the operation of mq_open() under various
corner conditions.

Signed-off-by: Doug Ledford <dledford@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: Joe Korty <joe.korty@ccur.com>
Cc: Amerigo Wang <amwang@redhat.com>
Cc: Serge E. Hallyn <serue@us.ibm.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-31 17:49:31 -07:00
Jesper Juhl
11c38b7575 ktest: Change singular "paranthesis" to plural "parentheses"
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-23 10:19:09 -04:00
Steven Rostedt
24d0c03014 ktest: Add README to explain what is in the examples directory
Add a README that explains what the different example configs in the
ktest example directory are about.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-22 00:15:12 -04:00
Steven Rostedt
b6d300361b ktest: Add the snowball.conf example config
I used the snowball.conf in a live demo that demonstrated how to use
ktest.pl with a snowball ARM board. I've been asked to included that
config in the ktest repository.

Here it is.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-22 00:13:32 -04:00
Steven Rostedt
2e10952622 ktest: Add an example config that does cross compiling of several archs
Add the config that I use to test several archs. I downloaded several
cross compilers from:

 http://kernel.org/pub/tools/crosstool/files/bin/x86_64/

and this config is an example to crosscompile several archs to make sure
that your changes do not break archs that you are not working on.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-22 00:11:00 -04:00
Steven Rostedt
3a7bef7917 ktest: Add kvm.conf example config
Add an example config that explains how to use ktest with a virtual
guest as the target.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-22 00:10:12 -04:00
Steven Rostedt
6d76f469c8 ktest: Add useful example configs
I've been asked several times to provide more useful example configs for
ktest.pl, as the sample.conf is too complex (because it explains all
configs). This adds configs broken up by use case, and these configs are
based on actual configs that I use on a daily basis.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-22 00:08:30 -04:00
Steven Rostedt
43de3316e9 ktest: Add USE_OUTPUT_MIN_CONFIG to avoid prompt on make_min_config
If the file that OUTPUT_MIN_CONFIG exists then ktest.pl will prompt the
user and ask them if the OUTPUT_MIN_CONFIG should be used as the
starting point for make_min_config instead of MIN_CONFIG.

This is usually the case, and to allow the user to do so, which is
helpful if the user is creating different min configs based on tests,
and they know one is a superset of another test, they can set
USE_OUTPUT_MIN_CONFIG to one, which will prevent kest.pl from prompting
to use the OUTPUT_MIN_CONFIG and it will just use it.

If USE_OUTPUT_MIN_CONIFG is set to zero, then ktest.pl will continue to
use MIN_CONFIG instead.

The default is that USE_OUTPUT_MIN_CONFIG is undefined.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-22 00:07:34 -04:00
Steven Rostedt
ccc513b688 ktest: Add MIN_CONFIG_TYPE to allow making a minum .config that has network
Add a MIN_CONFIG_TYPE that can be set to 'test' or 'boot'. The default
is 'boot' which is what make_min_config has done previously: makes a
config file that is the minimum needed to boot the target.

But when MIN_CONFIG_TYPE is set to 'test', not only must the target
boot, but it must also successfully run the TEST. This allows the
creation of a config file that is the minimum to boot and also
perform ssh to the target, or anything else a developer wants.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-21 17:13:40 -04:00
Steven Rostedt
683a3e6481 ktest: Fix kernelrevision with POST_BUILD
The PRE_BUILD and POST_BUILD options of ktest are added to allow the
user to add temporary patch to the system and remove it on builds. This
is sometimes use to take a change from another git branch and add it to
a series without the fix so that this series can be tested, when an
unrelated bug exists in the series.

The problem comes when a tagged commit is being used. For example, if
v3.2 is being tested, and we add a patch to it, the kernelrelease for
that commit will be 3.2.0+, but without the patch the version will be
3.2.0. This can cause problems when the kernelrelease is determined for
creating the /lib/modules directory. The kernel booting has the '+' but
the module directory will not, and the modules will be missing for that
boot, and may not allow the kernel to succeed.

The fix is to put the creation of the kernelrelease in the POST_BUILD
logic, before it applies the POST_BUILD operation. The POST_BUILD is
where the patch may be removed, removing the '+' from the kernelrelease.

The calculation of the kernelrelease will also stay in its current
location but will be ignored if it was already calculated previously.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-18 14:27:51 -04:00
Steven Rostedt
759a3cc625 ktest: Fix reboot on success stopping all reboots
The change to let individual tests decide to reboot the machine on
success of the entire test also prevented errors from rebooting
when an error was detected.

The "no_reboot" variable was only cleared if the test had
reboot_on_success set. But the no_reboot variable also prevents the test
rebooting when an error was detected even when REBOOT_ON_ERROR was set.

Add a new "reboot_success" variable that is used to determine if the
test should reboot on success and not touch the no_reboot variable.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-01 08:25:48 -04:00
Russ Dill
5158ba3ea7 ktest.pl: Fix combined usage of BISECT_REVERSE and BISECT_SKIP
When BISECT_REVERSE and BISECT_SKIP are used together with boot or test
testing, build failures are treated as boot or test failures and
'git bisect bad' is executed instead of 'git bisect skip'. This is because
the $ret value of -1 is treated as a build failure, but the $reverse_bisect
logic does not properly handle this.

Simple fix, only invert it if it is positive.

Link: http://lkml.kernel.org/r/1335235380-8509-1-git-send-email-Russ.Dill@ti.com

Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-01 08:25:44 -04:00
Dave Young
f0f57b2b14 mm: move hugepage test examples to tools/testing/selftests/vm
hugepage-mmap.c, hugepage-shm.c and map_hugetlb.c in Documentation/vm are
simple pass/fail tests, It's better to promote them to
tools/testing/selftests.

Thanks suggestion of Andrew Morton about this.  They all need firstly
setting up proper nr_hugepages and hugepage-mmap need to mount hugetlbfs.
So I add a shell script run_vmtests to do such work which will call the
three test programs and check the return value of them.

Changes to original code including below:
a. add run_vmtests script
b. return error when read_bytes mismatch with writed bytes.
c. coding style fixes: do not use assignment in if condition

[akpm@linux-foundation.org: build the targets before trying to execute them]
[akpm@linux-foundation.org: Documentation/vm/ no longer has a Makefile. Fixes "make clean"]
Signed-off-by: Dave Young <dyoung@redhat.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28 17:14:37 -07:00
Andrew Morton
cab6b05600 selftests/Makefile: make run_tests' depend on all'
So a "make run_tests" will build the tests before trying to run them.

Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28 17:14:37 -07:00
Frederic Weisbecker
f467f71403 selftests: launch individual selftests from the main Makefile
Remove the run_tests script and launch the selftests by calling "make
run_tests" from the selftests top directory instead.  This delegates to
the Makefile in each selftest directory, where it is decided how to launch
the local test.

This removes the need to add each selftest directory to the now removed
"run_tests" top script.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Christoph Lameter <cl@linux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28 17:14:37 -07:00
Linus Torvalds
f0a5ec0e8d ktest for v3.4
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Merge tag 'ktest-v3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest

Pull ktest changes from Steven Rostedt.

* tag 'ktest-v3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
  ktest: Allow a test to override REBOOT_ON_SUCCESS
  ktest: Fix SWITCH_TO_GOOD to also reboot the machine
  ktest: Add SCP_TO_TARGET_INSTALL option
  ktest: Add warning when bugs are ignored
  ktest: Add INSTALL_MOD_STRIP=1 when installing modules
2012-03-23 09:28:45 -07:00
Steven Rostedt
648a182c61 ktest: Allow a test to override REBOOT_ON_SUCCESS
The option REBOOT_ON_SUCCESS is global, and will have the machine reboot
the the box if all tests are successful. But a test may not want the
machine to reboot, and perhaps have the kernel it loaded be used to
install the next kernel. Or the last test may set up a kernel that the
user may want to look at. In this case, the user could have the global
option REBOOT_ON_SUCCESS be true, but if a test is defined to run at the
end, that test can override the global option and keep the kernel it
installed for the user to log in with.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-03-21 11:18:27 -04:00
Steven Rostedt
769df641cc ktest: Fix SWITCH_TO_GOOD to also reboot the machine
When the option SWITCH_TO_GOOD is set, it will be called when the system
needs to reboot to the good server. But currently, this keeps the reboot
from happening. The SWITCH_TO_GOOD is just a way to get to a new kernel,
it may not mean to not reboot.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-03-21 08:24:57 -04:00
Steven Rostedt
02ad261704 ktest: Add SCP_TO_TARGET_INSTALL option
Currently the option used to scp both the modules to the target as well
as the kernel image are the same (SCP_TO_TARGET). But some embedded
boards may require them to be different. The modules may need to be put
directly on the board, but the kernel image may need to go to a
tftpserver.

Add the option SCP_TO_TARGET_INSTALL that will allow the user to change
the config so that they may have the modules and image got to different
machines.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-03-21 08:21:24 -04:00
Steven Rostedt
6ca996cc7c ktest: Add warning when bugs are ignored
When IGNORE_ERRORS is set, ktest will not fail a test if a backtrace
is detected. But this can be an issue if the user added it in the
config but forgot to remove it. They may be left wondering why their
test did not fail, or even worse, why their bisect gave the wrong
commit.

Add a warning in the output if IGNORE_WARNINGS is set, and ktest detects
a kernel error.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-03-21 08:18:35 -04:00
Steven Rostedt
627977d83a ktest: Add INSTALL_MOD_STRIP=1 when installing modules
To keep the modules from bloating the target's filesystem
strip them during the install.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-03-21 08:16:15 -04:00