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7fbc3c373e
When KASAN is enabled, we notice warning below:
[ 483.436975] ==================================================================
[ 483.437234] BUG: KASAN: stack-out-of-bounds in _mlx5_ib_post_send+0x188a/0x2560 [mlx5_ib]
[ 483.437430] Read of size 4 at addr ffff88a195fd7d30 by task kworker/1:3/6954
[ 483.437731] CPU: 1 PID: 6954 Comm: kworker/1:3 Kdump: loaded Tainted: G O 5.4.82-pserver #5.4.82-1+feature+linux+5.4.y+dbg+20201210.1532+987e7a6~deb10
[ 483.437976] Hardware name: Supermicro Super Server/X11DDW-L, BIOS 3.3 02/21/2020
[ 483.438168] Workqueue: rtrs_server_wq hb_work [rtrs_core]
[ 483.438323] Call Trace:
[ 483.438486] dump_stack+0x96/0xe0
[ 483.438646] ? _mlx5_ib_post_send+0x188a/0x2560 [mlx5_ib]
[ 483.438802] print_address_description.constprop.6+0x1b/0x220
[ 483.438966] ? _mlx5_ib_post_send+0x188a/0x2560 [mlx5_ib]
[ 483.439133] ? _mlx5_ib_post_send+0x188a/0x2560 [mlx5_ib]
[ 483.439285] __kasan_report.cold.9+0x1a/0x32
[ 483.439444] ? _mlx5_ib_post_send+0x188a/0x2560 [mlx5_ib]
[ 483.439597] kasan_report+0x10/0x20
[ 483.439752] _mlx5_ib_post_send+0x188a/0x2560 [mlx5_ib]
[ 483.439910] ? update_sd_lb_stats+0xfb1/0xfc0
[ 483.440073] ? set_reg_wr+0x520/0x520 [mlx5_ib]
[ 483.440222] ? update_group_capacity+0x340/0x340
[ 483.440377] ? find_busiest_group+0x314/0x870
[ 483.440526] ? update_sd_lb_stats+0xfc0/0xfc0
[ 483.440683] ? __bitmap_and+0x6f/0x100
[ 483.440832] ? __lock_acquire+0xa2/0x2150
[ 483.440979] ? __lock_acquire+0xa2/0x2150
[ 483.441128] ? __lock_acquire+0xa2/0x2150
[ 483.441279] ? debug_lockdep_rcu_enabled+0x23/0x60
[ 483.441430] ? lock_downgrade+0x390/0x390
[ 483.441582] ? __lock_acquire+0xa2/0x2150
[ 483.441729] ? __lock_acquire+0xa2/0x2150
[ 483.441876] ? newidle_balance+0x425/0x8f0
[ 483.442024] ? __lock_acquire+0xa2/0x2150
[ 483.442172] ? debug_lockdep_rcu_enabled+0x23/0x60
[ 483.442330] hb_work+0x15d/0x1d0 [rtrs_core]
[ 483.442479] ? schedule_hb+0x50/0x50 [rtrs_core]
[ 483.442627] ? lock_downgrade+0x390/0x390
[ 483.442781] ? process_one_work+0x40d/0xa50
[ 483.442931] process_one_work+0x4ee/0xa50
[ 483.443082] ? pwq_dec_nr_in_flight+0x110/0x110
[ 483.443231] ? do_raw_spin_lock+0x119/0x1d0
[ 483.443383] worker_thread+0x65/0x5c0
[ 483.443532] ? process_one_work+0xa50/0xa50
[ 483.451839] kthread+0x1e2/0x200
[ 483.451983] ? kthread_create_on_node+0xc0/0xc0
[ 483.452139] ret_from_fork+0x3a/0x50
The problem is we use wrong type when send wr, hw driver expect the type
of IB_WR_RDMA_WRITE_WITH_IMM wr should be ib_rdma_wr, and doing
container_of to access member. The fix is simple use ib_rdma_wr instread
of ib_send_wr.
Fixes:
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.. | ||
accessibility | ||
acpi | ||
amba | ||
android | ||
ata | ||
atm | ||
auxdisplay | ||
base | ||
bcma | ||
block | ||
bluetooth | ||
bus | ||
cdrom | ||
char | ||
clk | ||
clocksource | ||
connector | ||
counter | ||
cpufreq | ||
cpuidle | ||
crypto | ||
dax | ||
dca | ||
devfreq | ||
dio | ||
dma | ||
dma-buf | ||
edac | ||
eisa | ||
extcon | ||
firewire | ||
firmware | ||
fpga | ||
fsi | ||
gnss | ||
gpio | ||
gpu | ||
greybus | ||
hid | ||
hsi | ||
hv | ||
hwmon | ||
hwspinlock | ||
hwtracing | ||
i2c | ||
i3c | ||
ide | ||
idle | ||
iio | ||
infiniband | ||
input | ||
interconnect | ||
iommu | ||
ipack | ||
irqchip | ||
isdn | ||
leds | ||
lightnvm | ||
macintosh | ||
mailbox | ||
mcb | ||
md | ||
media | ||
memory | ||
memstick | ||
message | ||
mfd | ||
misc | ||
mmc | ||
most | ||
mtd | ||
mux | ||
net | ||
nfc | ||
ntb | ||
nubus | ||
nvdimm | ||
nvme | ||
nvmem | ||
of | ||
opp | ||
oprofile | ||
parisc | ||
parport | ||
pci | ||
pcmcia | ||
perf | ||
phy | ||
pinctrl | ||
platform | ||
pnp | ||
power | ||
powercap | ||
pps | ||
ps3 | ||
ptp | ||
pwm | ||
rapidio | ||
ras | ||
regulator | ||
remoteproc | ||
reset | ||
rpmsg | ||
rtc | ||
s390 | ||
sbus | ||
scsi | ||
sfi | ||
sh | ||
siox | ||
slimbus | ||
soc | ||
soundwire | ||
spi | ||
spmi | ||
ssb | ||
staging | ||
target | ||
tc | ||
tee | ||
thermal | ||
thunderbolt | ||
tty | ||
uio | ||
usb | ||
vdpa | ||
vfio | ||
vhost | ||
video | ||
virt | ||
virtio | ||
visorbus | ||
vlynq | ||
vme | ||
w1 | ||
watchdog | ||
xen | ||
zorro | ||
Kconfig | ||
Makefile |