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Quinn Tran d3affdeb40 scsi: qla2xxx: Synchronize the IOCB count to be in order 
A system hang was observed with the following call trace:

BUG: kernel NULL pointer dereference, address: 0000000000000000
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 15 PID: 86747 Comm: nvme Kdump: loaded Not tainted 6.2.0+ #1
Hardware name: Dell Inc. PowerEdge R6515/04F3CJ, BIOS 2.7.3 03/31/2022
RIP: 0010:__wake_up_common+0x55/0x190
Code: 41 f6 01 04 0f 85 b2 00 00 00 48 8b 43 08 4c 8d
      40 e8 48 8d 43 08 48 89 04 24 48 89 c6\
      49 8d 40 18 48 39 c6 0f 84 e9 00 00 00 <49> 8b 40 18 89 6c 24 14 31
      ed 4c 8d 60 e8 41 8b 18 f6 c3 04 75 5d
RSP: 0018:ffffb05a82afbba0 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff8f9b83a00018 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffff8f9b83a00020 RDI: ffff8f9b83a00018
RBP: 0000000000000001 R08: ffffffffffffffe8 R09: ffffb05a82afbbf8
R10: 70735f7472617473 R11: 5f30307832616c71 R12: 0000000000000001
R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f815cf4c740(0000) GS:ffff8f9eeed80000(0000)
	knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000010633a000 CR4: 0000000000350ee0
Call Trace:
    <TASK>
    __wake_up_common_lock+0x83/0xd0
    qla_nvme_ls_req+0x21b/0x2b0 [qla2xxx]
    __nvme_fc_send_ls_req+0x1b5/0x350 [nvme_fc]
    nvme_fc_xmt_disconnect_assoc+0xca/0x110 [nvme_fc]
    nvme_fc_delete_association+0x1bf/0x220 [nvme_fc]
    ? nvme_remove_namespaces+0x9f/0x140 [nvme_core]
    nvme_do_delete_ctrl+0x5b/0xa0 [nvme_core]
    nvme_sysfs_delete+0x5f/0x70 [nvme_core]
    kernfs_fop_write_iter+0x12b/0x1c0
    vfs_write+0x2a3/0x3b0
    ksys_write+0x5f/0xe0
    do_syscall_64+0x5c/0x90
    ? syscall_exit_work+0x103/0x130
    ? syscall_exit_to_user_mode+0x12/0x30
    ? do_syscall_64+0x69/0x90
    ? exit_to_user_mode_loop+0xd0/0x130
    ? exit_to_user_mode_prepare+0xec/0x100
    ? syscall_exit_to_user_mode+0x12/0x30
    ? do_syscall_64+0x69/0x90
    ? syscall_exit_to_user_mode+0x12/0x30
    ? do_syscall_64+0x69/0x90
    entry_SYSCALL_64_after_hwframe+0x72/0xdc
    RIP: 0033:0x7f815cd3eb97

The IOCB counts are out of order and that would block any commands from
going out and subsequently hang the system. Synchronize the IOCB count to
be in correct order.

Fixes: 5f63a163ed ("scsi: qla2xxx: Fix exchange oversubscription for management commands")
Cc: stable@vger.kernel.org
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230313043711.13500-3-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: John Meneghini <jmeneghi@redhat.com>
Tested-by: Lin Li <lilin@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-16 22:59:19 -04:00
..
accel - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
accessibility
acpi More ACPI updates for 6.3-rc1 2023-03-03 10:36:01 -08:00
amba
android Char/Misc and other driver subsystem changes for 6.3-rc1 2023-02-24 12:47:33 -08:00
ata ata: ahci: Revert "ata: ahci: Add Tiger Lake UP{3,4} AHCI controller" 2023-03-03 18:43:02 +09:00
atm
auxdisplay
base A set of updates for the interrupt susbsystem: 2023-03-05 11:19:16 -08:00
bcma
block block-6.3-2023-03-03 2023-03-03 10:21:39 -08:00
bluetooth
bus ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
cdrom
char Char/Misc and other driver subsystem changes for 6.3-rc1 2023-02-24 12:47:33 -08:00
clk We have one small patch to the clk core this time around. It fixes a corner 2023-02-25 15:16:23 -08:00
clocksource Updates for timekeeping, timers and clockevent/source drivers: 2023-02-21 09:45:13 -08:00
comedi
connector
counter
cpufreq More power management updates for 6.3-rc1 2023-03-03 10:30:58 -08:00
cpuidle ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
crypto This push fixes a regression in the caam driver. 2023-03-05 11:32:30 -08:00
cxl cxl for v6.3 2023-02-25 09:19:23 -08:00
dax cxl for v6.3 2023-02-25 09:19:23 -08:00
dca
devfreq
dio
dma dmaengine updates for v6.3 2023-02-24 17:18:54 -08:00
dma-buf
edac - Add a driver for the RAS functionality on Xilinx's on chip memory 2023-02-21 08:10:03 -08:00
eisa
extcon
firewire Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
firmware ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
fpga Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
fsi
gnss
gpio Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
gpu drm-next-fixes for 6.3-rc1 2023-03-02 15:08:54 -08:00
greybus
hid Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
hsi Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
hte
hv Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
hwmon - Core Frameworks 2023-02-23 15:03:05 -08:00
hwspinlock
hwtracing Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
i2c i2c: gxp: fix an error code in probe 2023-03-03 21:00:54 +01:00
i3c I3C for 6.3 2023-02-28 16:05:01 -08:00
idle Power management updates for 6.3-rc1 2023-02-21 12:13:58 -08:00
iio Char/Misc and other driver subsystem changes for 6.3-rc1 2023-02-24 12:47:33 -08:00
infiniband v6.3 RDMA pull request 2023-02-24 15:11:03 -08:00
input ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
interconnect SoC: DT changes for 6.3 2023-02-20 15:49:56 -08:00
iommu ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
ipack Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
irqchip ARM: 2023-02-25 11:30:21 -08:00
isdn
leds - Remove Drivers 2023-02-23 15:09:31 -08:00
macintosh powerpc updates for 6.3 2023-02-25 11:00:06 -08:00
mailbox mailbox: qcom-apcs-ipc: add IPQ5332 APSS clock support 2023-02-23 14:47:13 -06:00
mcb
md flexible-array transformations for 6.3-rc1 2023-02-25 12:53:42 -08:00
media ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
memory ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
memstick MMC core: 2023-02-27 09:47:26 -08:00
message
mfd Including fixes from wireless and netfilter. 2023-02-27 14:05:08 -08:00
misc ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
mmc ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
most
mtd This pull request contains updates for JFFS2, UBI and UBIFS 2023-03-01 09:06:51 -08:00
mux
net Including fixes from wireless and netfilter. 2023-02-27 14:05:08 -08:00
nfc nfc: fix memory leak of se_io context in nfc_genl_se_io 2023-02-26 14:55:13 +00:00
ntb
nubus
nvdimm virtio,vhost,vdpa: features, fixes 2023-02-25 11:48:02 -08:00
nvme block-6.3-2023-03-03 2023-03-03 10:21:39 -08:00
nvmem
of IOMMU Updates for Linux v6.3: 2023-02-24 13:40:13 -08:00
opp
parisc
parport Char/Misc and other driver subsystem changes for 6.3-rc1 2023-02-24 12:47:33 -08:00
pci A set of updates for the interrupt susbsystem: 2023-03-05 11:19:16 -08:00
pcmcia Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
peci
perf RISC-V Patches for the 6.3 Merge Window, Part 2 2023-03-03 09:32:51 -08:00
phy ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
pinctrl ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
platform power supply and reset changes for the v6.3 series 2023-02-24 17:04:23 -08:00
pnp
power power supply changes for the v6.3 series (part 2) 2023-03-03 16:33:28 -08:00
powercap More power management updates for 6.3-rc1 2023-03-03 10:30:58 -08:00
pps
ps3
ptp ptp: vclock: use mutex to fix "sleep on atomic" bug 2023-02-22 21:23:48 -08:00
pwm pwm: dwc: Use devm_pwmchip_add() 2023-02-20 12:26:35 +01:00
rapidio
ras
regulator regulator: Fixes for v6.3 2023-03-02 09:21:25 -08:00
remoteproc ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
reset
rpmsg rpmsg updates for v6.3 2023-02-26 12:10:28 -08:00
rtc RTC for 6.3 2023-03-03 09:15:50 -08:00
s390 SCSI misc on 20230303 2023-03-03 14:41:50 -08:00
sbus
scsi scsi: qla2xxx: Synchronize the IOCB count to be in order 2023-03-16 22:59:19 -04:00
sh sh updates for v6.3 2023-03-01 09:44:22 -08:00
siox
slimbus
soc ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
soundwire soundwire updates for 6.3 2023-02-24 17:29:52 -08:00
spi spi: Fixes for v6.3 2023-03-02 09:25:38 -08:00
spmi
ssb
staging media updates for v6.3-rc1 2023-02-26 11:47:26 -08:00
target scsi: target: iscsi: Fix an error message in iscsi_check_key() 2023-03-06 16:50:42 -05:00
tc
tee Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
thermal More thermal control updates for 6.3-rc1 2023-03-03 10:41:59 -08:00
thunderbolt Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
tty vc_screen: don't clobber return value in vcs_read 2023-02-27 18:35:28 -08:00
ufs scsi: ufs: mcq: Use active_reqs to check busy in clock scaling 2023-03-09 21:09:28 -05:00
uio - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
usb phy-for-6.3 2023-02-24 17:22:11 -08:00
vdpa virtio,vhost,vdpa: features, fixes 2023-02-25 11:48:02 -08:00
vfio VFIO updates for v6.3-rc1 2023-02-25 11:52:57 -08:00
vhost virtio,vhost,vdpa: features, fixes 2023-02-25 11:48:02 -08:00
video TTY/Serial driver updates for 6.3-rc1 2023-02-24 12:17:14 -08:00
virt virt/sev-guest: Return -EIO if certificate buffer is not large enough 2023-03-01 10:17:46 +01:00
virtio virtio,vhost,vdpa: features, fixes 2023-02-25 11:48:02 -08:00
vlynq
w1 Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
watchdog linux-watchdog 6.3-rc1 tag 2023-03-02 11:12:01 -08:00
xen Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
zorro
Kconfig
Makefile Kbuild updates for v6.3 2023-02-26 11:53:25 -08:00