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7d2c0d6432
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Jitendra Bhivare 7d2c0d6432 scsi: be2iscsi: Replace _bh with _irqsave/irqrestore 
[ 3843.132217] WARNING: CPU: 20 PID: 1227 at kernel/softirq.c:150 __local_bh_enable_ip+0x6b/0x90
[ 3843.142815] Modules linked in:
...
[ 3843.294328] CPU: 20 PID: 1227 Comm: kworker/20:1H Tainted: G            E   4.8.0-rc1+ #3
[ 3843.304944] Hardware name: Dell Inc. PowerEdge R720/0X6H47, BIOS 1.4.8 10/25/2012
[ 3843.314798] Workqueue: kblockd blk_timeout_work
[ 3843.321350]  0000000000000086 00000000a32f4533 ffff8802216d7bd8 ffffffff8135c3cf
[ 3843.331146]  0000000000000000 0000000000000000 ffff8802216d7c18 ffffffff8108d661
[ 3843.340918]  00000096216d7c50 0000000000000200 ffff8802d07cc828 ffff8801b3632550
[ 3843.350687] Call Trace:
[ 3843.354866]  [<ffffffff8135c3cf>] dump_stack+0x63/0x84
[ 3843.362061]  [<ffffffff8108d661>] __warn+0xd1/0xf0
[ 3843.368851]  [<ffffffff8108d79d>] warn_slowpath_null+0x1d/0x20
[ 3843.376791]  [<ffffffff810930eb>] __local_bh_enable_ip+0x6b/0x90
[ 3843.384903]  [<ffffffff816fe7be>] _raw_spin_unlock_bh+0x1e/0x20
[ 3843.392940]  [<ffffffffa085f710>] beiscsi_alloc_pdu+0x2f0/0x6e0 [be2iscsi]
[ 3843.402076]  [<ffffffffa06bc358>] __iscsi_conn_send_pdu+0xf8/0x370 [libiscsi]
[ 3843.411549]  [<ffffffffa06bc6fe>] iscsi_send_nopout+0xbe/0x110 [libiscsi]
[ 3843.420639]  [<ffffffffa06bd98b>] iscsi_eh_cmd_timed_out+0x29b/0x2b0 [libiscsi]
[ 3843.430339]  [<ffffffff814cd1de>] scsi_times_out+0x5e/0x250
[ 3843.438119]  [<ffffffff813374af>] blk_rq_timed_out+0x1f/0x60
[ 3843.446009]  [<ffffffff8133759d>] blk_timeout_work+0xad/0x150
[ 3843.454010]  [<ffffffff810a6642>] process_one_work+0x152/0x400
[ 3843.462114]  [<ffffffff810a6f35>] worker_thread+0x125/0x4b0
[ 3843.469961]  [<ffffffff810a6e10>] ? rescuer_thread+0x380/0x380
[ 3843.478116]  [<ffffffff810aca28>] kthread+0xd8/0xf0
[ 3843.485212]  [<ffffffff816fedff>] ret_from_fork+0x1f/0x40
[ 3843.492908]  [<ffffffff810ac950>] ? kthread_park+0x60/0x60
[ 3843.500715] ---[ end trace 57ec0a1d8f0dd3a0 ]---
[ 3852.328667] NMI watchdog: Watchdog detected hard LOCKUP on cpu 1Kernel panic - not syncing: Hard LOCKUP

blk_timeout_work takes queue_lock spin_lock with interrupts disabled
before invoking iscsi_eh_cmd_timed_out. This causes a WARN_ON_ONCE in
spin_unlock_bh for wrb_lock/io_sgl_lock/mgmt_sgl_lock.

CPU was kept busy in lot of bottom half work with interrupts disabled
thus causing hard lock up.

Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-10-17 13:35:31 -04:00
..
accessibility
acpi nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
amba
android
ata
atm atm: iphase: fix newline escape and minor tweak to source formatting 2016-09-15 19:15:55 -04:00
auxdisplay
base memory-hotplug: fix store_mem_state() return value 2016-10-07 18:46:28 -07:00
bcma
block The big ticket item here is support for rbd exclusive-lock feature, 2016-10-10 13:52:05 -07:00
bluetooth Bluetooth: btusb: Fix atheros firmware download error 2016-10-07 09:46:56 +02:00
bus ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
cdrom
char Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
clk ARM: SoC: late DT updates for v4.9 2016-10-07 21:34:49 -07:00
clocksource ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
connector
cpufreq Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2016-10-06 07:59:37 -07:00
cpuidle nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-10-10 14:04:16 -07:00
dax
dca
devfreq PM / devfreq: rk3399_dmc: Remove explictly regulator_put call in .remove 2016-09-19 13:36:20 +02:00
dio
dma dmaengine updates for 4.8-rc1 2016-10-06 17:13:54 -07:00
dma-buf
edac * Altera Arria10 enablement of NAND, DMA, USB, QSPI and SD-MMC FIFO 2016-10-04 12:06:26 -07:00
eisa
extcon Merge branch 'next' into resolution 2016-09-15 16:45:20 +05:30
firewire
firmware ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
fmc
fpga
gpio Merge branch 'i2c/for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2016-10-07 14:12:21 -07:00
gpu Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 13:04:49 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2016-10-07 11:58:38 -07:00
hsi
hv Drivers: hv: get rid of id in struct vmbus_channel 2016-09-27 12:35:49 +02:00
hwmon hwmon updates for v4.9 2016-10-04 10:56:14 -07:00
hwspinlock
hwtracing
i2c Merge branch 'i2c/for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2016-10-07 14:12:21 -07:00
ide
idle nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
iio Staging/IIO patches for 4.9-rc1 2016-10-05 14:50:51 -07:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2016-10-07 09:12:19 -07:00
iommu KVM updates for v4.9-rc1 2016-10-06 10:49:01 -07:00
ipack
irqchip Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-10-10 10:24:41 -07:00
isdn
leds leds: triggers: Check return value of kobject_uevent_env() 2016-09-20 10:22:10 +02:00
lguest
lightnvm Merge branch 'for-4.9/block' of git://git.kernel.dk/linux-block 2016-10-07 14:42:05 -07:00
macintosh powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
mailbox Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration 2016-10-06 17:36:53 -07:00
mcb mcb: Add a dma_device to mcb_device 2016-09-27 12:33:47 +02:00
md Merge branch 'for-4.9/block-irq' of git://git.kernel.dk/linux-block 2016-10-09 17:29:33 -07:00
media ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
memory ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
memstick
message scsi: fusion: Fix error return code in mptfc_probe() 2016-09-14 14:26:19 -04:00
mfd - Core Frameworks 2016-10-07 08:35:35 -07:00
misc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
mmc USB/PHY/EXTCON patches for 4.9-rc1 2016-10-03 20:17:35 -07:00
mtd This pull request contains: 2016-10-11 10:49:44 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-10-11 08:10:19 -07:00
nfc
ntb
nubus
nvdimm libnvdimm, region: fix flush hint table thinko 2016-09-24 11:45:38 -07:00
nvme Merge branch 'for-4.9/block-irq' of git://git.kernel.dk/linux-block 2016-10-09 17:29:33 -07:00
nvmem ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
of MTD updates for 4.9-rc1 2016-10-10 17:39:51 -07:00
oprofile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
parisc
parport
pci Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-10-10 14:04:16 -07:00
pcmcia pcmcia: soc_common: add driver-data pointer 2016-09-22 09:39:16 +01:00
perf ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
phy phy-twl4030-usb: initialize charging-related stuff via pm_runtime 2016-09-14 10:59:12 +05:30
pinctrl ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
platform Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
pnp
power power supply and reset changes for the v4.9 series 2016-10-06 18:21:15 -07:00
powercap
pps
ps3 powerpc: Remove all usages of NO_IRQ 2016-09-20 20:57:12 +10:00
ptp ptp: Fix resource leak in case of error 2016-10-03 21:54:10 -04:00
pwm
rapidio rapidio/rio_cm: avoid GFP_KERNEL in atomic context 2016-09-19 15:36:17 -07:00
ras
regulator - Core Frameworks 2016-10-07 08:35:35 -07:00
remoteproc rpmsg updates for v4.9 2016-10-06 17:03:49 -07:00
reset
rpmsg
rtc Merge branches 'ib-mfd-gpio-4.9', 'ib-mfd-gpio-regulator-4.9', 'ib-mfd-input-4.9', 'ib-mfd-regulator-4.9', 'ib-mfd-regulator-4.9.1', 'ib-mfd-regulator-rtc-4.9', 'ib-mfd-regulator-rtc-4.9-1' and 'ib-mfd-rtc-4.9' into ibs-for-mfd-merged 2016-10-04 15:47:01 +01:00
s390 scsi: zfcp: spin_lock_irqsave() is not nestable 2016-10-14 16:21:08 -04:00
sbus
scsi scsi: be2iscsi: Replace _bh with _irqsave/irqrestore 2016-10-17 13:35:31 -04:00
sfi
sh
sn
soc ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
spi Merge remote-tracking branches 'spi/topic/ti-qspi', 'spi/topic/tools', 'spi/topic/txx9' and 'spi/topic/xlp' into spi-next 2016-09-30 09:14:22 -07:00
spmi spmi: pmic-arb: Return an error code if sanity check fails 2016-09-27 12:43:34 +02:00
ssb
staging Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
target chcr/cxgb4i/cxgbit/RDMA/cxgb4: Allocate resources dynamically for all cxgb4 ULD's 2016-09-19 01:37:32 -04:00
tc
thermal
thunderbolt
tty Merge branch 'printk-cleanups' 2016-10-10 09:29:50 -07:00
uio
usb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
uwb
vfio vfio_pci: use pci_alloc_irq_vectors 2016-09-29 13:36:38 -06:00
vhost
video backlight: pwm_bl: Handle gpio that can sleep 2016-10-06 09:27:26 +01:00
virt
virtio
vlynq
vme vme: fake: remove unexpected unlock in fake_master_set() 2016-09-27 12:43:35 +02:00
w1
watchdog USB/PHY/EXTCON patches for 4.9-rc1 2016-10-03 20:17:35 -07:00
xen xen: features and fixes for 4.9-rc0 2016-10-06 11:19:10 -07:00
zorro
Kconfig
Makefile clk: probe common clock drivers earlier 2016-09-23 13:00:04 +02:00