Weiping Zhang 9c9e76d579 nvme-pci: make sure write/poll_queues less or equal then cpu count ... Check module parameter write/poll_queues before using it to catch too large values. Reproducer: modprobe -r nvme modprobe nvme write_queues=`nproc` echo $((`nproc`+1)) > /sys/module/nvme/parameters/write_queues echo 1 > /sys/block/nvme0n1/device/reset_controller [ 657.069000] ------------[ cut here ]------------ [ 657.069022] WARNING: CPU: 10 PID: 1163 at kernel/irq/affinity.c:390 irq_create_affinity_masks+0x47c/0x4a0 [ 657.069056] dm_region_hash dm_log dm_mod [ 657.069059] CPU: 10 PID: 1163 Comm: kworker/u193:9 Kdump: loaded Tainted: G W 5.6.0+ #8 [ 657.069060] Hardware name: Inspur SA5212M5/YZMB-00882-104, BIOS 4.0.9 08/27/2019 [ 657.069064] Workqueue: nvme-reset-wq nvme_reset_work [nvme] [ 657.069066] RIP: 0010:irq_create_affinity_masks+0x47c/0x4a0 [ 657.069067] Code: fe ff ff 48 c7 c0 b0 89 14 95 48 89 46 20 e9 e9 fb ff ff 31 c0 e9 90 fc ff ff 0f 0b 48 c7 44 24 08 00 00 00 00 e9 e9 fc ff ff <0f> 0b e9 87 fe ff ff 48 8b 7c 24 28 e8 33 a0 80 00 e9 b6 fc ff ff [ 657.069068] RSP: 0018:ffffb505ce1ffc78 EFLAGS: 00010202 [ 657.069069] RAX: 0000000000000060 RBX: ffff9b97921fe5c0 RCX: 0000000000000000 [ 657.069069] RDX: ffff9b67bad80000 RSI: 00000000ffffffa0 RDI: 0000000000000000 [ 657.069070] RBP: 0000000000000000 R08: 0000000000000000 R09: ffff9b97921fe718 [ 657.069070] R10: ffff9b97921fe710 R11: 0000000000000001 R12: 0000000000000064 [ 657.069070] R13: 0000000000000060 R14: 0000000000000000 R15: 0000000000000001 [ 657.069071] FS: 0000000000000000(0000) GS:ffff9b67c0880000(0000) knlGS:0000000000000000 [ 657.069072] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 657.069072] CR2: 0000559eac6fc238 CR3: 000000057860a002 CR4: 00000000007606e0 [ 657.069073] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 657.069073] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 657.069073] PKRU: 55555554 [ 657.069074] Call Trace: [ 657.069080] __pci_enable_msix_range+0x233/0x5a0 [ 657.069085] ? kernfs_put+0xec/0x190 [ 657.069086] pci_alloc_irq_vectors_affinity+0xbb/0x130 [ 657.069089] nvme_reset_work+0x6e6/0xeab [nvme] [ 657.069093] ? __switch_to_asm+0x34/0x70 [ 657.069094] ? __switch_to_asm+0x40/0x70 [ 657.069095] ? nvme_irq_check+0x30/0x30 [nvme] [ 657.069098] process_one_work+0x1a7/0x370 [ 657.069101] worker_thread+0x1c9/0x380 [ 657.069102] ? max_active_store+0x80/0x80 [ 657.069103] kthread+0x112/0x130 [ 657.069104] ? __kthread_parkme+0x70/0x70 [ 657.069105] ret_from_fork+0x35/0x40 [ 657.069106] ---[ end trace f4f06b7d24513d06 ]--- [ 657.077110] nvme nvme0: 95/1/0 default/read/poll queues Signed-off-by: Weiping Zhang <zhangweiping@didiglobal.com> Signed-off-by: Christoph Hellwig <hch@lst.de>		2020-05-27 07:12:37 +02:00
..
accessibility
acpi	More ACPI updates for 5.7-rc1	2020-04-10 09:52:15 -07:00
amba	Revert "amba: Initialize dma_parms for amba devices"	2020-04-01 08:03:28 +02:00
android
ata	block: move dma_pad handling from blk_rq_map_sg into the callers	2020-04-22 10:47:39 -06:00
atm	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
auxdisplay
base	driver core: remove device_create_vargs	2020-05-09 16:15:13 -06:00
bcma
block	block/floppy: fix contended case in floppy_queue_rq()	2020-05-26 15:23:54 -06:00
bluetooth
bus	ARM: driver updates	2020-04-03 15:05:35 -07:00
cdrom	cdrom: factor out a cdrom_multisession helper	2020-05-04 10:13:42 -06:00
char	Merge branch 'akpm' (patches from Andrew)	2020-04-10 17:57:48 -07:00
clk	clk: sprd: don't gate uart console clock	2020-04-13 12:20:07 -07:00
clocksource	clocksource/drivers/timer-vf-pit: Add missing parenthesis	2020-04-05 09:24:58 +02:00
connector
counter
cpufreq	Additional power management updates for 5.7-rc1	2020-04-06 10:14:39 -07:00
cpuidle	Merge branch 'pm-cpuidle'	2020-04-10 11:32:22 +02:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2020-04-08 21:35:29 -07:00
dax	dax: Move mandatory ->zero_page_range() check in alloc_dax()	2020-04-02 19:15:03 -07:00
dca
devfreq	PM / devfreq: Fix handling dev_pm_qos_remove_request result	2020-03-25 08:35:03 +09:00
dio
dma	drivers/dma/tegra20-apb-dma.c: fix platform_get_irq.cocci warnings	2020-04-10 15:36:22 -07:00
dma-buf	A bunch of fixes to avoid null pointer dereference in fbcon, fix a return	2020-04-08 09:14:34 +10:00
edac	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2020-03-30 16:40:08 -07:00
eisa	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
extcon	Char/Misc driver patches for 5.7-rc1	2020-04-03 13:22:40 -07:00
firewire
firmware	efi/libstub/file: Merge file name buffers to reduce stack usage	2020-04-14 08:32:15 +02:00
fpga
fsi
gnss
gpio	This is the bulk of GPIO development for the v5.7 kernel cycle.	2020-04-04 10:27:00 -07:00
gpu	Merge branch 'linux-5.7' of git://github.com/skeggsb/linux into drm-fixes	2020-04-16 15:40:02 +10:00
greybus
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid	2020-04-01 15:18:42 -07:00
hsi
hv	hyperv-fixes for 5.7-rc1	2020-04-14 11:58:04 -07:00
hwmon	hwmon: (jc42) Fix name to have no illegal characters	2020-04-18 10:13:07 -07:00
hwspinlock	hwspinlock: hwspinlock_internal.h: Replace zero-length array with flexible-array member	2020-03-25 22:30:46 -07:00
hwtracing	intel_th: msu: Make stopping the trace optional	2020-03-24 13:45:24 +01:00
i2c	i2c: tegra: Synchronize DMA before termination	2020-04-15 18:27:31 +02:00
i3c	i3c: convert to use i2c_new_client_device()	2020-03-29 10:35:50 +02:00
ide	ide-cd: rename cdrom_read_tocentry	2020-05-04 10:13:42 -06:00
idle	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2020-03-30 16:40:08 -07:00
iio	chrome platform changes for 5.7	2020-04-08 21:25:49 -07:00
infiniband	RDMA 5.7 pull request	2020-04-01 18:18:18 -07:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2020-04-07 20:20:12 -07:00
interconnect
iommu	Merge branches 'iommu/fixes', 'arm/qcom', 'arm/omap', 'arm/smmu', 'x86/amd', 'x86/vt-d', 'virtio' and 'core' into next	2020-03-27 11:33:27 +01:00
ipack
irqchip	Merge branch 'irq/gic-v4.1-fixes-5.7' into irq/irqchip-5.7	2020-04-17 08:59:55 +01:00
isdn	mISDN: make dmril and dmrim static	2020-04-16 13:52:31 -07:00
leds	leds: core: Fix warning message when init_data	2020-04-06 23:12:08 +02:00
lightnvm	for-5.7/drivers-2020-03-29	2020-03-30 11:43:51 -07:00
macintosh	Char/Misc driver patches for 5.7-rc1	2020-04-03 13:22:40 -07:00
mailbox
mcb
md	md/raid1: Replace zero-length array with flexible-array	2020-05-13 12:02:23 -07:00
media	Power management updates for 5.7-rc1	2020-03-30 15:05:01 -07:00
memory	ARM: driver updates	2020-04-03 15:05:35 -07:00
memstick
message	scsi: message: fusion: Replace zero-length array with flexible-array member	2020-03-26 22:40:47 -04:00
mfd	mfd: intel-lpss: Fix Intel Elkhart Lake LPSS I2C input clock	2020-03-30 07:35:28 +01:00
misc	virtio: fixes, vdpa	2020-04-08 10:51:53 -07:00
mmc	MMC core:	2020-03-31 16:13:09 -07:00
most	staging: most: move core files out of the staging area	2020-03-24 13:42:44 +01:00
mtd	bdi: remove the name field in struct backing_dev_info	2020-05-09 16:15:13 -06:00
mux
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-04-16 14:52:29 -07:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-03-25 18:58:11 -07:00
ntb	pci-v5.7-changes	2020-04-03 14:25:02 -07:00
nubus
nvdimm	libnvdimm for 5.7	2020-04-08 21:03:40 -07:00
nvme	nvme-pci: make sure write/poll_queues less or equal then cpu count	2020-05-27 07:12:37 +02:00
nvmem	nvmem: core: remove nvmem_sysfs_get_groups()	2020-03-25 19:23:49 +01:00
of	of: unittest: kmemleak in duplicate property update	2020-04-17 08:31:34 -05:00
opp	opp: Manage empty OPP tables with clk handle	2020-04-13 16:14:55 +05:30
oprofile
parisc	parisc: Replace setup_irq() by request_irq()	2020-04-05 22:05:23 +02:00
parport
pci	IOMMU Updates for Linux v5.7	2020-04-08 11:00:00 -07:00
pcmcia	pcmcia: remove some unused space characters	2020-03-31 18:48:22 +02:00
perf	arm64 updates for 5.7:	2020-03-31 10:05:01 -07:00
phy	pci-v5.7-changes	2020-04-03 14:25:02 -07:00
pinctrl	This is the bulk of GPIO development for the v5.7 kernel cycle.	2020-04-04 10:27:00 -07:00
platform	chrome-platform fixes for v5.7-rc2	2020-04-16 15:00:57 -07:00
pnp
power	change email address for Pali Rohár	2020-04-10 15:36:22 -07:00
powercap	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2020-03-30 16:40:08 -07:00
pps
ps3	powerpc/ps3: Remove an unneeded NULL check	2020-04-03 00:09:59 +11:00
ptp	ptp: Avoid deadlocks in the programmable pin code.	2020-03-30 11:16:38 -07:00
pwm	pwm: pca9685: Fix PWM/GPIO inter-operation	2020-04-03 21:41:42 +02:00
rapidio
ras
regulator	spi/regulator: Updates for v5.7	2020-03-30 14:58:26 -07:00
remoteproc	remoteproc/omap: Fix set_load call in omap_rproc_request_timer	2020-04-03 10:47:21 -07:00
reset
rpmsg
rtc	- New Drivers	2020-04-07 19:48:52 -07:00
s390	s390/dasd: remove ioctl_by_bdev calls	2020-05-21 08:22:20 -06:00
sbus
scsi	lpfc: nvmet: Add Send LS Request and Abort LS Request support	2020-05-09 16:18:34 -06:00
sfi
sh
siox
slimbus
soc	RISC-V Patches for the 5.7 Merge Window, Part 1	2020-04-09 10:51:30 -07:00
soundwire	Char/Misc driver patches for 5.7-rc1	2020-04-03 13:22:40 -07:00
spi	sound updates for 5.7-rc1	2020-04-02 15:50:04 -07:00
spmi
ssb
staging	mm/vma: introduce VM_ACCESS_FLAGS	2020-04-10 15:36:21 -07:00
target	scsi: target: tcmu: reset_ring should reset TCMU_DEV_BIT_BROKEN	2020-04-13 14:03:20 -04:00
tc
tee	ARM: driver updates	2020-04-03 15:05:35 -07:00
thermal	- Convert tsens configuration DT binding to yaml (Rajeshwari)	2020-04-07 20:00:16 -07:00
thunderbolt
tty	powerpc updates for 5.7	2020-04-05 11:12:59 -07:00
uio
usb	SCSI misc on 20200402	2020-04-02 17:03:53 -07:00
vdpa	vdpa: move to drivers/vdpa	2020-04-02 10:41:40 -04:00
vfio	vfio: Ignore -ENODEV when getting MSI cookie	2020-04-01 13:51:51 -06:00
vhost	vhost: introduce vDPA-based backend	2020-04-02 10:41:40 -04:00
video	drm fixes for 5.7-rc1	2020-04-07 20:24:34 -07:00
virt
virtio	virtio: fixes, vdpa	2020-04-08 10:51:53 -07:00
visorbus
vlynq
vme
w1
watchdog	watchdog: sp805: fix restart handler	2020-04-08 11:18:38 +02:00
xen	xen: branch for v5.7-rc2	2020-04-17 10:35:17 -07:00
zorro	SPDX patches for 5.7-rc1.	2020-04-03 13:12:26 -07:00
Kconfig	virtio: fixes, vdpa	2020-04-08 10:51:53 -07:00
Makefile	virtio: fixes, vdpa	2020-04-08 10:51:53 -07:00