Brian King 8a4236a2c7 scsi: ipr: Fix async error WARN_ON ... Commit afc3f83cb4 ("scsi: ipr: Add asynchronous error notification") introduced the warn on shown below. To fix this, rather than attempting to send the KOBJ_CHANGE uevent from interrupt context, which is what is causing the WARN_ON, just wake the ipr worker thread which will send a KOBJ_CHANGE uevent. [ 142.278120] WARNING: CPU: 15 PID: 0 at kernel/softirq.c:161 __local_bh_enable_ip+0x7c/0xd0 [ 142.278124] Modules linked in: ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw iptable_filter ses enclosure scsi_transport_sas sg pseries_rng nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sr_mod sd_mod cdrom ipr libata ibmvscsi scsi_transport_srp ibmveth dm_mirror dm_region_hash dm_log dm_mod [ 142.278208] CPU: 15 PID: 0 Comm: swapper/15 Not tainted 4.8.0.ipr+ #21 [ 142.278213] task: c00000010cf24480 task.stack: c00000010cfec000 [ 142.278217] NIP: c0000000000c0c7c LR: c000000000881778 CTR: c0000000003c5bf0 [ 142.278221] REGS: c00000010cfef080 TRAP: 0700 Not tainted (4.8.0.ipr+) [ 142.278224] MSR: 8000000000029033 <SF,EE,ME,IR,DR,RI,LE> CR: 28008022 XER: 2000000f [ 142.278236] CFAR: c0000000000c0c20 SOFTE: 0 GPR00: c000000000706c78 c00000010cfef300 c000000000f91d00 c000000000706c78 GPR04: 0000000000000200 c000000000f7bc80 0000000000000000 00000000024000c0 GPR08: 0000000000000000 0000000000000001 c000000000ee1d00 c000000000a9bdd0 GPR12: c0000000003c5bf0 c00000000eb22d00 c000000100ca3880 c00000020ed38400 GPR16: 0000000000000000 0000000000000000 c000000100940508 0000000000000000 GPR20: 0000000000000000 0000000000000000 0000000000000000 00000000024000c0 GPR24: c0000000004588e0 c00000010863bd00 c00000010863bd00 c0000000013773f8 GPR28: c000000000f7bc80 0000000000000000 ffffffffffffffff c000000000f7bcd8 [ 142.278290] NIP [c0000000000c0c7c] __local_bh_enable_ip+0x7c/0xd0 [ 142.278296] LR [c000000000881778] _raw_spin_unlock_bh+0x38/0x60 [ 142.278299] Call Trace: [ 142.278303] [c00000010cfef300] [c000000000f7bc80] init_net+0x0/0x1900 (unreliable) [ 142.278310] [c00000010cfef320] [c000000000706c78] peernet2id+0x58/0x80 [ 142.278316] [c00000010cfef370] [c00000000075caec] netlink_broadcast_filtered+0x30c/0x550 [ 142.278323] [c00000010cfef430] [c000000000459078] kobject_uevent_env+0x588/0x780 [ 142.278331] [c00000010cfef510] [d000000003163a6c] ipr_process_error+0x11c/0x240 [ipr] [ 142.278337] [c00000010cfef5c0] [d000000003152298] ipr_fail_all_ops+0x108/0x220 [ipr] [ 142.278343] [c00000010cfef670] [d0000000031643f8] ipr_reset_restore_cfg_space+0xa8/0x240 [ipr] [ 142.278350] [c00000010cfef6f0] [d000000003158a00] ipr_reset_ioa_job+0x80/0xe0 [ipr] [ 142.278356] [c00000010cfef720] [d000000003153f78] ipr_reset_timer_done+0xa8/0xe0 [ipr] [ 142.278363] [c00000010cfef770] [c000000000149c88] call_timer_fn+0x58/0x1c0 [ 142.278368] [c00000010cfef800] [c000000000149f60] expire_timers+0x140/0x200 [ 142.278373] [c00000010cfef870] [c00000000014a0e8] run_timer_softirq+0xc8/0x230 [ 142.278379] [c00000010cfef900] [c0000000000c0844] __do_softirq+0x164/0x3c0 [ 142.278384] [c00000010cfef9f0] [c0000000000c0f18] irq_exit+0x1a8/0x1c0 [ 142.278389] [c00000010cfefa20] [c000000000020b54] timer_interrupt+0xa4/0xe0 [ 142.278394] [c00000010cfefa50] [c000000000002414] decrementer_common+0x114/0x180 Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>		2016-10-14 16:26:31 -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
auxdisplay
base
bcma
block	The big ticket item here is support for rbd exclusive-lock feature,	2016-10-10 13:52:05 -07:00
bluetooth
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
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
dio
dma
dma-buf
edac
eisa
extcon
firewire
firmware	ARM: SoC driver updates for v4.9	2016-10-07 21:23:40 -07:00
fmc
fpga
gpio
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
hsi
hv
hwmon
hwspinlock
hwtracing
i2c
ide
idle	nmi_backtrace: generate one-line reports for idle cpus	2016-10-07 18:46:30 -07:00
iio
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
iommu
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
lguest
lightnvm
macintosh
mailbox
mcb
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
mfd
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
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
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
perf	ARM: SoC driver updates for v4.9	2016-10-07 21:23:40 -07:00
phy
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
powercap
pps
ps3
ptp
pwm
rapidio
ras
regulator
remoteproc
reset
rpmsg
rtc
s390	scsi: zfcp: spin_lock_irqsave() is not nestable	2016-10-14 16:21:08 -04:00
sbus
scsi	scsi: ipr: Fix async error WARN_ON	2016-10-14 16:26:31 -04:00
sfi
sh
sn
soc	ARM: SoC driver updates for v4.9	2016-10-07 21:23:40 -07:00
spi
spmi
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
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
vhost
video
virt
virtio
vlynq
vme
w1
watchdog
xen
zorro
Kconfig
Makefile