[TLDR: I'm adding this report to the list of tracked Linux kernel
regressions; the text you find below is based on a few templates
paragraphs you might have encountered already in similar form.
See link in footer if these mails annoy you.]
On 21.08.23 08:46, Shinichiro Kawasaki wrote:
> I observed a process hang at the blktests test case srp/002 occasionally, using
> kernel v6.5-rcX. Kernel reported stall of many kworkers [1]. PID 2757 hanged at
> inode_sleep_on_writeback(). Other kworkers hanged at __inode_wait_for_writeback.
>
> The hang is recreated in stable manner by repeating the test case srp/002 (from
> 15 times to 30 times).
>
> I bisected and found the commit 9b4b7c1f9f54 ("RDMA/rxe: Add workqueue support
> for rxe tasks") looks like the trigger commit. When I revert it from the kernel
> v6.5-rc7, the hang symptom disappears. I'm not sure how the commit relates to
> the hang. Comments will be welcomed.
> […]
Thanks for the report. To be sure the issue doesn't fall through the
cracks unnoticed, I'm adding it to regzbot, the Linux kernel regression
tracking bot:
#regzbot ^introduced 9b4b7c1f9f54
#regzbot title RDMA/rxe: occasionally pocess hang at the blktests test
case srp/002
#regzbot ignore-activity
This isn't a regression? This issue or a fix for it are already
discussed somewhere else? It was fixed already? You want to clarify when
the regression started to happen? Or point out I got the title or
something else totally wrong? Then just reply and tell me -- ideally
while also telling regzbot about it, as explained by the page listed in
the footer of this mail.
Developers: When fixing the issue, remember to add 'Link:' tags pointing
to the report (the parent of this mail). See page linked in footer for
details.
Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
That page also explains what to do if mails like this annoy you.
