Jens Axboe e7d9dc9cfd cciss: fix bug in overriding ->data_len before completion ... For BLOCK_PC requests, we need that length for completing the request. Andrew Vasquez <andrew.vasquez@qlogic.com> reported the following oops Hitting a consistent BUG() with recent Linus' linux-2.6.git: [ 12.941428] ------------[ cut here ]------------ [ 12.944874] kernel BUG at drivers/block/cciss.c:1260! [ 12.944874] invalid opcode: 0000 [1] SMP [ 12.944874] CPU 0 [ 12.944874] Modules linked in: [ 12.944874] Pid: 0, comm: swapper Not tainted 2.6.24 #43 [ 12.944874] RIP: 0010:[<ffffffff8039e43d>] [<ffffffff8039e43d>] cciss_softirq_done+0xbc/0x1bf [ 12.944874] RSP: 0018:ffffffff8063aed0 EFLAGS: 00010202 [ 12.944874] RAX: 0000000000000001 RBX: ffff8100cf800010 RCX: ffff81042f1253b0 [ 12.944874] RDX: ffff81042de398f0 RSI: ffff81042de398f0 RDI: 0000000000000001 [ 12.944874] RBP: ffff81042daa0000 R08: ffff81042f1253b0 R09: 0000000000000001 [ 12.944874] R10: 00000000000000fe R11: 0000000000000000 R12: 0000000000000002 [ 12.944874] R13: 0000000000000001 R14: ffff8100cf800000 R15: ffff81042de398f0 [ 12.944874] FS: 0000000000000000(0000) GS:ffffffff805bb000(0000) knlGS:0000000000000000 [ 12.944874] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b [ 12.944874] CR2: 00002afed7eea340 CR3: 000000042dbba000 CR4: 00000000000006e0 [ 12.944874] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 12.944874] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 12.944874] Process swapper (pid: 0, threadinfo ffffffff805f4000, task ffffffff805624a0) [ 12.944874] Stack: 0000000000000000 ffffffff8063af10 0000000000000001 ffffffff80632d60 [ 12.944874] 0000000000000000 000000000000000a ffffffff805bb900 ffffffff8032038f [ 12.944874] ffffffff8063af10 ffffffff8063af10 ffffffff805bb940 ffffffff802346b4 [ 12.944874] Call Trace: [ 12.944874] <IRQ> [<ffffffff8032038f>] blk_done_softirq+0x69/0x78 [ 12.944874] [<ffffffff802346b4>] __do_softirq+0x6f/0xd8 [ 12.944874] [<ffffffff8020c45c>] call_softirq+0x1c/0x30 [ 12.944874] [<ffffffff8020e347>] do_softirq+0x30/0x80 [ 12.944874] [<ffffffff8020e409>] do_IRQ+0x72/0xd9 [ 12.944874] [<ffffffff8020a50a>] mwait_idle+0x0/0x46 [ 12.944874] [<ffffffff8020a3da>] default_idle+0x0/0x3d [ 12.944874] [<ffffffff8020b7e1>] ret_from_intr+0x0/0xa [ 12.944874] <EOI> [<ffffffff8020a54c>] mwait_idle+0x42/0x46 [ 12.944874] [<ffffffff8020a481>] cpu_idle+0x6a/0xae [ 12.944874] [ 12.944874] [ 12.944874] Code: 0f 0b eb fe 48 8d 85 d8 c0 00 00 48 89 04 24 48 89 c7 e8 e5 [ 12.944874] RIP [<ffffffff8039e43d>] cciss_softirq_done+0xbc/0x1bf [ 12.944874] RSP <ffffffff8063aed0> [ 12.944903] ---[ end trace e9c631603f90d22f ]--- which is caused by blk_end_request() returning 'not done' for a request, since it gets asked to complete zero bytes. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>		2008-01-29 21:55:18 +01:00
..
acorn/char
acpi	Driver core: change sysdev classes to use dynamic kobject names	2008-01-24 20:40:40 -08:00
amba
ata	libata: Change "write_data" to "rw" for some function documentations	2008-01-29 08:48:17 +11:00
atm	[ATM]: [he] fixing compilation when you define USE_RBPS_POOL/USE_RBPL_POOL	2008-01-28 15:00:15 -08:00
auxdisplay
base	convert drivers/base/power/Makefile to ccflags	2008-01-28 23:14:35 +01:00
block	cciss: fix bug in overriding ->data_len before completion	2008-01-29 21:55:18 +01:00
bluetooth	[BLUETOOTH]: Always send explicit hci_ll wake-up acks.	2008-01-10 22:24:43 -08:00
cdrom	Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2008-01-29 08:52:50 +11:00
char	Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2008-01-25 08:38:25 -08:00
clocksource
connector	[NETNS]: Consolidate kernel netlink socket destruction.	2008-01-28 15:08:07 -08:00
cpufreq	Kobject: convert drivers/* from kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
cpuidle	Kobject: convert drivers/* from kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
crypto	[S390] crypto: move s390 Kconfig options.	2008-01-26 14:11:17 +01:00
dca
dio
dma	DMA: Convert from class_device to device for DMA engine	2008-01-24 20:40:05 -08:00
edac	Driver core: change sysdev classes to use dynamic kobject names	2008-01-24 20:40:40 -08:00
eisa
firewire	[SCSI] relax scsi dma alignment	2008-01-11 18:29:22 -06:00
firmware	Kobject: convert drivers/* from kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
hid	HID: ADS/Tech Radio si470x needs blacklist entry	2008-01-28 14:51:23 +01:00
hwmon	hwmon: (it87) request only Environment Controller ports	2008-01-22 07:21:38 -05:00
i2c	Merge branch 'orion' into devel	2008-01-28 13:21:30 +00:00
ide	blk_end_request: changing ide-cd (take 4)	2008-01-28 10:37:06 +01:00
ieee1394	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2008-01-25 17:19:08 -08:00
infiniband	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25	2008-01-29 22:54:01 +11:00
input	[ARM] 4737/1: Refactor corgi_lcd to improve readability + bugfix	2008-01-28 13:13:25 +00:00
isdn	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6	2008-01-25 08:35:13 -08:00
kvm	Driver core: change sysdev classes to use dynamic kobject names	2008-01-24 20:40:40 -08:00
leds	leds: Fix locomo LED driver oops	2007-12-31 23:11:11 +00:00
lguest	cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus()	2008-01-25 21:08:02 +01:00
macintosh	i2c: Kill rogue driver IDs	2008-01-27 18:14:47 +01:00
mca
md	Kobject: convert drivers/* from kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
media	i2c: Drivers stop using the redundant client list	2008-01-27 18:14:51 +01:00
message	blk_end_request: changing i2o_block (take 4)	2008-01-28 10:36:50 +01:00
mfd	[ARM] Fix class_device damage caused by 0c55445f20	2008-01-28 10:59:09 +00:00
misc	kobject: convert ibmasm to use kref, not kobject	2008-01-24 20:40:08 -08:00
mmc	Merge branch 'blk-end-request' of git://git.kernel.dk/linux-2.6-block	2008-01-29 08:51:32 +11:00
mtd	mtd: Convert from class_device to device for MTD/mtdchar	2008-01-24 20:40:06 -08:00
net	[PPP]: Sparse warning fixes.	2008-01-28 15:11:27 -08:00
nubus
of
oprofile
parisc	[PARISC]: Fix build after ipv4_is_*() changes.	2008-01-28 14:58:20 -08:00
parport	parport: "dev->timeslice" is an unsigned long, not an int	2007-12-17 19:28:15 -08:00
pci	Kobject: convert drivers/* from kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
pcmcia	[ARM] pxa: move memory controller registers into pxa2xx-regs.h	2008-01-26 15:07:54 +00:00
pnp	pnpacpi: print resource shortage message only once (more)	2008-01-17 15:38:58 -08:00
power	power supply : use class iteration api	2008-01-24 20:40:44 -08:00
ps3	ps3: vuart: fix error path locking	2007-12-23 12:54:37 -08:00
rapidio	remove __attribute_used__	2008-01-28 23:21:18 +01:00
rtc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2008-01-29 08:52:50 +11:00
s390	[VLAN]: Turn VLAN_DEV_INFO into inline function	2008-01-28 15:08:32 -08:00
sbus
scsi	[NETNS]: Consolidate kernel netlink socket destruction.	2008-01-28 15:08:07 -08:00
serial	Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2008-01-29 08:52:50 +11:00
sh
sn
spi	[ARM] pxa: make pxa2xx_spi driver use ssp_request()/ssp_free()	2008-01-26 15:07:52 +00:00
ssb	ssb: Add boardflags_hi field to the sprom data structure	2008-01-28 15:09:52 -08:00
tc
telephony
uio	UIO: constify function pointer tables	2008-01-24 20:40:43 -08:00
usb	Merge branch 'pxa-plat' into devel	2008-01-28 13:21:38 +00:00
video	Merge branches 'at91', 'ep93xx', 'iop', 'kprobes', 'ks8695', 'misc', 'msm', 's3c2410', 'sa1100' and 'vfp' into devel	2008-01-28 13:21:21 +00:00
virtio
w1	i2c: normal_i2c can be made const (remaining drivers)	2008-01-27 18:14:47 +01:00
watchdog	[WATCHDOG] constify function pointer tables	2008-01-25 20:41:30 +00:00
xen
zorro
Kconfig
Makefile