Michal Hocko 537b604c8b scsi: fix scsi_error_handler vs. scsi_host_dev_release race ... b9d5c6b7ef ("[SCSI] cleanup setting task state in scsi_error_handler()") has introduced a race between scsi_error_handler and scsi_host_dev_release resulting in the hang when the device goes away because scsi_error_handler might miss a wake up: CPU0 CPU1 scsi_error_handler scsi_host_dev_release kthread_stop() kthread_should_stop() test_bit(KTHREAD_SHOULD_STOP) set_bit(KTHREAD_SHOULD_STOP) wake_up_process() wait_for_completion() set_current_state(TASK_INTERRUPTIBLE) schedule() The most straightforward solution seems to be to invert the ordering of the set_current_state and kthread_should_stop. The issue has been noticed during reboot test on a 3.0 based kernel but the current code seems to be affected in the same way. [jejb: additional comment added] Cc: <stable@vger.kernel.org> # 3.6+ Reported-and-debugged-by: Mike Mayer <Mike.Meyer@teradata.com> Signed-off-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>		2015-09-06 12:05:45 -07:00
..
accessibility
acpi	Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm	2015-07-11 20:44:31 -07:00
amba
android
ata	ata: ahci_platform: Add ACPI _CLS matching	2015-07-07 01:55:21 +02:00
atm
auxdisplay
base	Fix firmware loader uevent buffer NULL pointer dereference	2015-07-09 11:20:01 -07:00
bcma
block	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-07-04 19:36:06 -07:00
bluetooth
bus	ARM: SoC: driver updates for v4.2	2015-06-26 11:54:29 -07:00
cdrom
char	Merge tag 'drm-intel-next-fixes-2015-07-02' of git://anongit.freedesktop.org/drm-intel	2015-07-02 14:36:40 -07:00
clk	A small set of fixes for problems found by smatch in new drivers	2015-07-11 11:08:21 -07:00
clocksource	clocksource/imx: Define clocksource for mx27	2015-07-07 10:44:45 +02:00
connector
cpufreq	MIPS, CPUFREQ: Fix spelling of Institute.	2015-07-07 20:59:42 +02:00
cpuidle	Replace module_platform_driver with builtin_platform driver in non modules.	2015-07-02 10:42:13 -07:00
crypto	crypto: marvell/cesa - another fix up for of_get_named_gen_pool() rename	2015-07-03 11:37:02 -07:00
dca
devfreq
dio
dma	Merge branch 'akpm' (patches from Andrew)	2015-07-01 17:47:51 -07:00
dma-buf
edac	A build fix for octeon_edac from Aaro Koskinen.	2015-07-03 12:10:12 -07:00
eisa
extcon
firewire
firmware	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2015-07-03 15:20:57 -07:00
fmc
gpio	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-01 15:19:35 -07:00
gpu	Revert "drm/i915: Use crtc_state->active in primary check_plane func"	2015-07-12 15:00:20 -07:00
hid
hsi	Fix up implicit <module.h> users that will break later.	2015-07-02 10:25:22 -07:00
hv
hwmon	hwmon: (w83627ehf) Use swap() in w82627ehf_swap_tempreg()	2015-07-03 14:39:06 +02:00
hwspinlock	hwspinlock: qcom: Correct msb in regmap_field	2015-07-01 16:15:05 +03:00
hwtracing/coresight
i2c	i2c: Mark instantiated device nodes with OF_POPULATE	2015-07-09 22:25:54 +02:00
ide	Minor merge needed, due to function move.	2015-07-01 10:49:25 -07:00
idle
iio
infiniband	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-07-04 19:36:06 -07:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2015-07-11 11:16:04 -07:00
iommu	IOMMU Fixes for Linux v4.2-rc0	2015-07-01 14:44:22 -07:00
ipack
irqchip	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2015-07-12 13:55:24 -07:00
isdn	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-06-24 16:49:49 -07:00
leds	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds	2015-07-01 19:09:11 -07:00
lguest
macintosh
mailbox	Replace module_init with appropriate alternate initcall in non modules.	2015-07-02 10:36:29 -07:00
mcb
md	dm-mpath, scsi_dh: request scsi_dh modules in scsi_dh, not dm-mpath	2015-08-28 13:14:55 -07:00
media	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds	2015-07-01 19:09:11 -07:00
memory	Merge branch 'fixes-rc1' into omap-for-v4.2/fixes	2015-07-06 05:33:17 -07:00
memstick	memstick: remove deprecated use of pci api	2015-06-30 19:44:57 -07:00
message	mptfusion: prevent some memory corruption	2015-08-26 07:11:45 -07:00
mfd	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-01 15:19:35 -07:00
misc	powerpc fixes for 4.2	2015-07-10 12:16:59 -07:00
mmc	ARM: SoC: late fixes and dependencies	2015-07-02 14:40:49 -07:00
mtd	Minor merge needed, due to function move.	2015-07-01 10:49:25 -07:00
net	A very significant modification to NTB in this series.	2015-07-04 14:07:47 -07:00
nfc	Char/Misc driver patches for 4.2-rc1	2015-06-26 14:51:15 -07:00
ntb	NTB: Add split BAR output for debugfs stats	2015-07-04 14:09:32 -04:00
nubus
nvdimm	nvdimm: Fix return value of nvdimm_bus_init() if class_create() fails	2015-06-30 14:30:34 -04:00
of	Devicetree changes for v4.2	2015-07-01 19:40:18 -07:00
oprofile
parisc
parport
pci	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-01 15:19:35 -07:00
pcmcia	Fix up implicit <module.h> users that will break later.	2015-07-02 10:25:22 -07:00
phy	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2015-06-27 12:44:34 -07:00
pinctrl	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-01 15:19:35 -07:00
platform	platform-drivers-x86 for 4.2-2	2015-07-05 10:54:09 -07:00
pnp	ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage	2015-07-06 23:52:21 +02:00
power	Replace module_platform_driver with builtin_platform driver in non modules.	2015-07-02 10:42:13 -07:00
powercap
pps
ps3
ptp
pwm	pwm: Changes for v4.2-rc1	2015-06-23 13:32:38 -07:00
rapidio	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2015-06-23 14:08:54 -07:00
ras
regulator	Fix up implicit <module.h> users that will break later.	2015-07-02 10:25:22 -07:00
remoteproc
reset
rpmsg
rtc	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2015-06-27 12:44:34 -07:00
s390	KVM: s390: virtio-ccw: don't overwrite config space values	2015-07-03 18:55:18 +02:00
sbus
scsi	scsi: fix scsi_error_handler vs. scsi_host_dev_release race	2015-09-06 12:05:45 -07:00
sfi
sh	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-07-01 15:19:35 -07:00
sn
soc	ARM: SoC: late fixes and dependencies	2015-07-02 14:40:49 -07:00
spi
spmi
ssb
staging	Staging driver patches for 4.2-rc1	2015-06-26 15:46:08 -07:00
target	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-07-04 14:13:43 -07:00
tc
thermal	Minor merge needed, due to function move.	2015-07-01 10:49:25 -07:00
thunderbolt
tty	ARM: SoC: late fixes and dependencies	2015-07-02 14:40:49 -07:00
uio
usb	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-07-04 19:36:06 -07:00
uwb
vfio	VFIO updates for v4.2	2015-06-28 12:32:13 -07:00
vhost	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-07-04 14:13:43 -07:00
video	stifb: Implement hardware accelerated copyarea	2015-07-10 21:44:19 +02:00
virt
virtio	virtio/vhost: cross endian support	2015-07-03 16:02:25 -07:00
vlynq
vme
w1
watchdog	Merge git://www.linux-watchdog.org/linux-watchdog	2015-07-01 19:33:16 -07:00
xen	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-07-04 14:13:43 -07:00
zorro
Kconfig	libnvdimm, nfit: initial libnvdimm infrastructure and NFIT support	2015-06-24 21:24:10 -04:00
Makefile	The libnvdimm sub-system introduces, in addition to the libnvdimm-core,	2015-06-29 10:34:42 -07:00