AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers
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Benjamin Poirier fff200caf6 e1000e: Ignore TSYNCRXCTL when getting I219 clock attributes 
There have been multiple reports of crashes that look like
kernel: RIP: 0010:[<ffffffff8110303f>] timecounter_read+0xf/0x50
[...]
kernel: Call Trace:
kernel:  [<ffffffffa0806b0f>] e1000e_phc_gettime+0x2f/0x60 [e1000e]
kernel:  [<ffffffffa0806c5d>] e1000e_systim_overflow_work+0x1d/0x80 [e1000e]
kernel:  [<ffffffff810992c5>] process_one_work+0x155/0x440
kernel:  [<ffffffff81099e16>] worker_thread+0x116/0x4b0
kernel:  [<ffffffff8109f422>] kthread+0xd2/0xf0
kernel:  [<ffffffff8163184f>] ret_from_fork+0x3f/0x70

These can be traced back to the fact that e1000e_systim_reset() skips the
timecounter_init() call if e1000e_get_base_timinca() returns -EINVAL, which
leads to a null deref in timecounter_read().

Commit 83129b37ef ("e1000e: fix systim issues", v4.2-rc1) reworked
e1000e_get_base_timinca() in such a way that it can return -EINVAL for
e1000_pch_spt if the SYSCFI bit is not set in TSYNCRXCTL.

Some experimentation has shown that on I219 (e1000_pch_spt, "MAC: 12")
adapters, the E1000_TSYNCRXCTL_SYSCFI flag is unstable; TSYNCRXCTL reads
sometimes don't have the SYSCFI bit set. Retrying the read shortly after
finds the bit to be set. This was observed at boot (probe) but also link up
and link down.

Moreover, the phc (PTP Hardware Clock) seems to operate normally even after
reads where SYSCFI=0. Therefore, remove this register read and
unconditionally set the clock parameters.

Reported-by: Achim Mildenberger <admin@fph.physik.uni-karlsruhe.de>
Message-Id: <20180425065243.g5mqewg5irkwgwgv@f2>
Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1075876
Fixes: 83129b37ef ("e1000e: fix systim issues")
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-06-04 09:45:53 -07:00
..
accessibility
acpi ACPICA: Add deferred package support for the Load and loadTable operators 2018-05-14 22:25:45 +02:00
amba ARM: amba: Fix race condition with driver_override 2018-04-26 10:35:04 +02:00
android ANDROID: binder: prevent transactions into own process. 2018-04-23 12:12:41 +02:00
ata ahci: Add PCI ID for Cannon Lake PCH-LP AHCI 2018-05-24 07:03:32 -07:00
atm atm: zatm: fix memcmp casting 2018-05-29 09:59:53 -04:00
auxdisplay auxdisplay: img-ascii-lcd: Silence 2 uninitialized warnings 2018-03-13 18:16:38 +01:00
base mm/memory_hotplug: fix leftover use of struct page during hotplug 2018-05-25 18:12:11 -07:00
bcma bcma: fix buffer size caused crash in bcma_core_mips_print_irq() 2018-05-12 11:36:59 +03:00
block for-linus-20180524 2018-05-24 08:53:20 -07:00
bluetooth Bluetooth: Add a new 13d3:3496 QCA_ROME device 2018-05-18 06:37:52 +02:00
bus HISI LPC: Add Kconfig MFD_CORE dependency 2018-04-26 16:53:23 +02:00
cdrom cdrom: information leak in cdrom_ioctl_media_changed() 2018-04-18 08:21:32 -06:00
char agp: uninorth: make two functions static 2018-05-10 11:26:08 +10:00
clk clk: stm32: fix: stm32 clock drivers are not compiled by default 2018-05-15 15:47:03 -07:00
clocksource clocksource/imx-tpm: Correct -ETIME return condition check 2018-04-19 13:21:35 +02:00
connector connector: add parent pid and tgid to coredump and exit events 2018-05-01 14:25:37 -04:00
cpufreq cpufreq: armada-37xx: driver relies on cpufreq-dt 2018-05-14 22:25:56 +02:00
cpuidle cpuidle: menu: Avoid selecting shallow states with stopped tick 2018-04-09 11:54:57 +02:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-06-03 09:31:58 -04:00
dax device-dax: allow MAP_SYNC to succeed 2018-04-19 15:11:50 -07:00
dca dca: make function dca_common_get_tag static 2018-04-23 21:02:41 -04:00
devfreq
dio
dma dmaengine: qcom: bam_dma: check if the runtime pm enabled 2018-05-17 16:16:49 +05:30
dma-buf
edac * Add NVDIMM support to EDAC (Tony Luck) 2018-04-05 14:21:13 -07:00
eisa
extcon Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
firewire
firmware firmware: qcom: scm: Fix crash in qcom_scm_call_atomic1() 2018-05-24 22:36:45 -05:00
fmc treewide: Fix typos in printk 2018-03-27 09:51:22 +02:00
fpga fpga-manager: altera-ps-spi: preserve nCONFIG state 2018-04-23 13:27:05 +02:00
fsi fsi: core: Add check for master property no-scan-on-init 2018-03-14 19:11:01 +01:00
gpio gpio: pcie-idio-24: Fix off-by-one error in get_multiple loop 2018-04-30 10:48:08 +02:00
gpu drm/amd/display: Update color props when modeset is required 2018-05-31 13:08:26 -05:00
hid HID: i2c-hid: Add RESEND_REPORT_DESCR quirk for Toshiba Click Mini L9W-B 2018-05-09 13:58:01 +02:00
hsi HSI: hsi_char: Delete an error message for a failed memory allocation in hsc_probe() 2018-03-19 16:31:07 +01:00
hv ARM: 2018-04-09 11:42:31 -07:00
hwmon hwmon: (k10temp) Use API function to access System Management Network 2018-05-13 09:00:49 -07:00
hwspinlock
hwtracing hwtracing: stm: fix build error on some arches 2018-05-26 08:49:24 +02:00
i2c i2c: ocores: update HDL sources URL 2018-05-29 20:14:32 +02:00
ide for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
idle
iio First round of IIO fixes for the 4.17 cycle. 2018-05-09 17:08:29 +02:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-06-03 09:31:58 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2018-05-29 22:22:15 -05:00
iommu iommu: rockchip: fix building without CONFIG_OF 2018-05-03 16:36:07 +02:00
ipack
irqchip irqchip/qcom: Fix check for spurious interrupts 2018-05-02 15:56:10 +02:00
isdn isdn: eicon: fix a missing-check bug 2018-05-22 13:48:34 -04:00
leds leds: Fix wrong dmi_match on PC Engines APU LEDs 2018-03-20 20:28:00 +01:00
lightnvm lightnvm: pblk: remove some unnecessary NULL checks 2018-03-29 17:29:09 -06:00
macintosh powerpc updates for 4.17 2018-04-07 12:08:19 -07:00
mailbox mailbox: Add support for Hi3660 mailbox 2018-03-20 11:15:54 +08:00
mcb mcb: Add Altera PCI ID to mcb-pci 2018-03-19 14:20:24 -05:00
md for-linus-20180518 2018-05-18 10:10:43 -07:00
media MAINTAINERS & files: Canonize the e-mails I use at files 2018-05-04 06:21:06 -04:00
memory ARM: OMAP2+: Fix build when using split object directories 2018-04-18 10:07:13 -07:00
memstick
message scsi: mptsas: Disable WRITE SAME 2018-04-18 23:37:25 -04:00
mfd mfd: cros_ec: Retry commands when EC is known to be busy 2018-05-23 06:59:00 +01:00
misc Merge branch 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-05-18 18:02:01 -07:00
mmc mmc: sdhci-iproc: add SDHCI_QUIRK2_HOST_OFF_CARD_ON for cygnus 2018-05-21 13:27:22 +02:00
mtd mtd: rawnand: marvell: Fix read logic for layouts with ->nchunks > 2 2018-05-14 14:46:20 +02:00
mux
net e1000e: Ignore TSYNCRXCTL when getting I219 clock attributes 2018-06-04 09:45:53 -07:00
nfc
ntb
nubus
nvdimm Revert "libnvdimm, of_pmem: workaround OF_NUMA=n build error" 2018-04-19 15:10:56 -07:00
nvme Merge candidates for 4.17-rc 2018-06-02 09:55:44 -07:00
nvmem Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
of of: mdio: Fall back to mdiobus_register() with NULL device_node 2018-05-16 14:20:35 -04:00
opp
oprofile oprofilefs: don't oops on allocation failure 2018-03-29 15:07:48 -04:00
parisc parisc: Move ccio_cujo20_fixup() into init section 2018-05-18 16:21:49 +02:00
parport Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
pci PCI / PM: Check device_may_wakeup() in pci_enable_wake() 2018-05-10 16:50:26 +02:00
pcmcia Merge branch 'for-linus-sa1100' of git://git.armlinux.org.uk/~rmk/linux-arm 2018-04-09 09:26:36 -07:00
perf ARM: SoC driver updates for 4.17 2018-04-05 21:29:35 -07:00
phy phy: cp110-comphy: 2.5G SGMII mode 2018-05-17 16:11:40 -04:00
pinctrl pinctrl: sunrisepoint: Align GPIO number space with Windows 2018-05-02 14:36:00 +02:00
platform platform-drivers-x86 for v4.17-4 2018-05-31 09:39:57 -05:00
pnp
power ARM: SoC platform updates for 4.17 2018-04-05 21:21:08 -07:00
powercap powercap: RAPL: Add support for Cannon Lake 2018-03-19 00:02:24 +01:00
pps pps: generator: use new parport device model 2018-03-14 17:53:06 +01:00
ps3
ptp ptp_qoriq: move some definitions to header file 2018-05-28 23:05:11 -04:00
pwm pwm: Changes for v4.17-rc1 2018-04-13 15:46:21 -07:00
rapidio rapidio: fix rio_dma_transfer error handling 2018-04-20 17:18:35 -07:00
ras
regulator Merge remote-tracking branches 'regulator/topic/88pg86x', 'regulator/topic/dt', 'regulator/topic/formatting' and 'regulator/topic/gpio' into regulator-next 2018-03-28 10:33:53 +08:00
remoteproc remoteproc: qcom: Fix potential device node leaks 2018-04-25 16:46:55 -07:00
reset reset: uniphier: fix USB clock line for LD20 2018-04-27 11:51:12 +02:00
rpmsg rpmsg: added MODULE_ALIAS for rpmsg_char 2018-04-25 16:46:55 -07:00
rtc rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops 2018-04-25 13:24:13 +10:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-06-03 09:31:58 -04:00
sbus sparc64: Fix mistake in oradax license text 2018-04-30 16:06:01 -04:00
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-06-03 09:31:58 -04:00
sfi
sh
siox siox: fix possible buffer overflow in device_add_store 2018-03-15 18:07:46 +01:00
slimbus slimbus: Fix out-of-bounds access in slim_slicesize() 2018-04-23 13:40:15 +02:00
sn
soc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-06-03 09:31:58 -04:00
soundwire
spi spi: bcm2835aux: ensure interrupts are enabled for shared handler 2018-05-04 08:09:02 +09:00
spmi
ssb ssb: make SSB_PCICORE_HOSTMODE depend on SSB = y 2018-05-12 11:38:13 +03:00
staging Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-06-03 09:31:58 -04:00
target scsi: target: tcmu: fix error resetting qfull_time_out to default 2018-05-14 22:44:50 -04:00
tc
tee tee: check shm references are consistent in offset/size 2018-05-07 11:51:03 +02:00
thermal Merge branch 'thermal-soc' into next 2018-05-11 09:37:21 +08:00
thunderbolt thunderbolt: Handle NULL boot ACL entries properly 2018-05-15 18:02:00 +02:00
tty tty: Use __GFP_NOFAIL for tty_ldisc_get() 2018-04-25 15:03:44 +02:00
uio uio_hv_generic: fix subchannel ring mmap 2018-04-23 12:43:48 +02:00
usb usbip: usbip_host: fix bad unlock balance during stub_probe() 2018-05-16 18:52:13 +02:00
uwb uwb: Re-use DEFINE_SHOW_ATTRIBUTE() macro 2018-03-09 09:31:26 -08:00
vfio Revert "vfio/type1: Improve memory pinning process for raw PFN mapping" 2018-06-02 08:41:44 -06:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-06-03 09:31:58 -04:00
video fbdev changes for v4.17: 2018-04-10 10:20:00 -07:00
virt virt: vbox: Log an error when we fail to get the host version 2018-04-23 13:41:55 +02:00
virtio virtio: feature 2018-04-11 18:58:27 -07:00
visorbus
vlynq
vme
w1 w1: use put_device() if device_register() fail 2018-03-14 14:58:50 +01:00
watchdog aspeed: watchdog: Set bootstatus during probe 2018-04-16 10:22:40 +02:00
xen xen-swiotlb: fix the check condition for xen_swiotlb_free_coherent 2018-05-18 14:37:16 -04:00
zorro zorro: Set up z->dev.dma_mask for the DMA API 2018-03-19 10:26:46 +01:00
Kconfig hwtracing: Add HW tracing support menu 2018-03-29 13:38:10 +03:00
Makefile