Greeting,
FYI, we noticed the following commit (built with gcc-9):
commit: de3510e52b0a398261271455562458003b8eea62 ("null_blk: fix command timeout completion handling")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: blktests
version: blktests-x86_64-a210761-1_20210124
with following parameters:
disk: 1SSD
test: nvme-group-00
ucode: 0x11
on test machine: 288 threads Intel(R) Xeon Phi(TM) CPU 7295 @ 1.50GHz with 80G memory
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <[email protected]>
block/014 (run null-blk with blk-mq and timeout injection configured)
block/014 (run null-blk with blk-mq and timeout injection configured) [failed]
runtime ... 71.624s
--- tests/block/014.out 2021-01-24 06:04:08.000000000 +0000
+++ /mnt/nvme-group-00/nodev/block/014.out.bad 2021-04-06 09:21:25.133971868 +0000
@@ -1,2 +1,377 @@
Running block/014
+dd: error reading '/dev/nullb0': Connection timed out
+dd: error reading '/dev/nullb0': Connection timed out
+dd: error reading '/dev/nullb0': Connection timed out
+dd: error reading '/dev/nullb0': Connection timed out
+dd: error reading '/dev/nullb0': Connection timed out
+dd: error reading '/dev/nullb0': Connection timed out
...
(Run 'diff -u tests/block/014.out /mnt/nvme-group-00/nodev/block/014.out.bad' to see the entire diff)
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml
bin/lkp run compatible-job.yaml
---
0DAY/LKP+ Test Infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/[email protected] Intel Corporation
Thanks,
Oliver Sang