* btrfs-progs: misc/016 hangs at ioctl
@ 2019-12-04 6:06 Qu Wenruo
2019-12-04 6:08 ` Qu Wenruo
2019-12-09 15:32 ` David Sterba
0 siblings, 2 replies; 6+ messages in thread
From: Qu Wenruo @ 2019-12-04 6:06 UTC (permalink / raw)
To: linux-btrfs
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Hi,
Found a strange failure at btrfs-progs selftest misc/016.
It hangs at current master 63de37476ebd ("Merge tag
'tag-chrome-platform-for-v5.5' of
git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux").
What makes it even more mysterious is, misc-5.5 passes.
Since there is no other btrfs pull, it's caused by some upstream
non-btrfs commits.
Doing bisecting, but any clue will be appreciated.
Thanks,
Qu
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: btrfs-progs: misc/016 hangs at ioctl 2019-12-04 6:06 btrfs-progs: misc/016 hangs at ioctl Qu Wenruo @ 2019-12-04 6:08 ` Qu Wenruo 2019-12-04 16:17 ` David Sterba 2019-12-09 15:32 ` David Sterba 1 sibling, 1 reply; 6+ messages in thread From: Qu Wenruo @ 2019-12-04 6:08 UTC (permalink / raw) To: linux-btrfs [-- Attachment #1.1: Type: text/plain, Size: 628 bytes --] On 2019/12/4 下午2:06, Qu Wenruo wrote: > Hi, > > Found a strange failure at btrfs-progs selftest misc/016. > > It hangs at current master 63de37476ebd ("Merge tag > 'tag-chrome-platform-for-v5.5' of > git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux"). > > What makes it even more mysterious is, misc-5.5 passes. > > Since there is no other btrfs pull, it's caused by some upstream > non-btrfs commits. BTW, no blocked kernel thread, no CPU usage. And the hang can be canceled with a signal. > > Doing bisecting, but any clue will be appreciated. > > Thanks, > Qu > [-- Attachment #2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 488 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: btrfs-progs: misc/016 hangs at ioctl 2019-12-04 6:08 ` Qu Wenruo @ 2019-12-04 16:17 ` David Sterba 2019-12-04 16:29 ` David Sterba 0 siblings, 1 reply; 6+ messages in thread From: David Sterba @ 2019-12-04 16:17 UTC (permalink / raw) To: Qu Wenruo; +Cc: linux-btrfs On Wed, Dec 04, 2019 at 02:08:14PM +0800, Qu Wenruo wrote: > On 2019/12/4 下午2:06, Qu Wenruo wrote: > > Found a strange failure at btrfs-progs selftest misc/016. > > > > It hangs at current master 63de37476ebd ("Merge tag > > 'tag-chrome-platform-for-v5.5' of > > git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux"). > > > > What makes it even more mysterious is, misc-5.5 passes. > > > > Since there is no other btrfs pull, it's caused by some upstream > > non-btrfs commits. > > BTW, no blocked kernel thread, no CPU usage. > > And the hang can be canceled with a signal. > > > > > Doing bisecting, but any clue will be appreciated. This looks like a problem caused by recent merge of updates to pipe (commit 6a965666b7e7475c2f8c8e724703db58b8a8a445). I can reproduce that and now building test kernel before that commit. As this also blocks all fstests that use send, we have to wait until it's fixed in master branch. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: btrfs-progs: misc/016 hangs at ioctl 2019-12-04 16:17 ` David Sterba @ 2019-12-04 16:29 ` David Sterba 2019-12-04 17:06 ` David Sterba 0 siblings, 1 reply; 6+ messages in thread From: David Sterba @ 2019-12-04 16:29 UTC (permalink / raw) To: David Sterba; +Cc: Qu Wenruo, linux-btrfs On Wed, Dec 04, 2019 at 05:17:23PM +0100, David Sterba wrote: > On Wed, Dec 04, 2019 at 02:08:14PM +0800, Qu Wenruo wrote: > > On 2019/12/4 下午2:06, Qu Wenruo wrote: > > > Found a strange failure at btrfs-progs selftest misc/016. > > > > > > It hangs at current master 63de37476ebd ("Merge tag > > > 'tag-chrome-platform-for-v5.5' of > > > git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux"). > > > > > > What makes it even more mysterious is, misc-5.5 passes. > > > > > > Since there is no other btrfs pull, it's caused by some upstream > > > non-btrfs commits. > > > > BTW, no blocked kernel thread, no CPU usage. > > > > And the hang can be canceled with a signal. > > > > > > > > Doing bisecting, but any clue will be appreciated. > > This looks like a problem caused by recent merge of updates to pipe > (commit 6a965666b7e7475c2f8c8e724703db58b8a8a445). I can reproduce that > and now building test kernel before that commit. As this also blocks all > fstests that use send, we have to wait until it's fixed in master > branch. That hangs too, so that's going to be a long bisect. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: btrfs-progs: misc/016 hangs at ioctl 2019-12-04 16:29 ` David Sterba @ 2019-12-04 17:06 ` David Sterba 0 siblings, 0 replies; 6+ messages in thread From: David Sterba @ 2019-12-04 17:06 UTC (permalink / raw) To: dsterba, Qu Wenruo, linux-btrfs On Wed, Dec 04, 2019 at 05:29:54PM +0100, David Sterba wrote: > On Wed, Dec 04, 2019 at 05:17:23PM +0100, David Sterba wrote: > > On Wed, Dec 04, 2019 at 02:08:14PM +0800, Qu Wenruo wrote: > > > On 2019/12/4 下午2:06, Qu Wenruo wrote: > > > > Found a strange failure at btrfs-progs selftest misc/016. > > > > > > > > It hangs at current master 63de37476ebd ("Merge tag > > > > 'tag-chrome-platform-for-v5.5' of > > > > git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux"). > > > > > > > > What makes it even more mysterious is, misc-5.5 passes. > > > > > > > > Since there is no other btrfs pull, it's caused by some upstream > > > > non-btrfs commits. > > > > > > BTW, no blocked kernel thread, no CPU usage. > > > > > > And the hang can be canceled with a signal. > > > > > > > > > > > Doing bisecting, but any clue will be appreciated. > > > > This looks like a problem caused by recent merge of updates to pipe > > (commit 6a965666b7e7475c2f8c8e724703db58b8a8a445). I can reproduce that > > and now building test kernel before that commit. As this also blocks all > > fstests that use send, we have to wait until it's fixed in master > > branch. > > That hangs too, so that's going to be a long bisect. Well the test took slightly longer than expected, so commit 6a965666b7e7 -- first bad merge commit 32ef9553635a -- last good merge There are 13 commits in the pipe branch so I'll have to bisect anyway but at least it's going to be faster. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: btrfs-progs: misc/016 hangs at ioctl 2019-12-04 6:06 btrfs-progs: misc/016 hangs at ioctl Qu Wenruo 2019-12-04 6:08 ` Qu Wenruo @ 2019-12-09 15:32 ` David Sterba 1 sibling, 0 replies; 6+ messages in thread From: David Sterba @ 2019-12-09 15:32 UTC (permalink / raw) To: Qu Wenruo; +Cc: linux-btrfs On Wed, Dec 04, 2019 at 02:06:11PM +0800, Qu Wenruo wrote: > Hi, > > Found a strange failure at btrfs-progs selftest misc/016. > > It hangs at current master 63de37476ebd ("Merge tag > 'tag-chrome-platform-for-v5.5' of > git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux"). > > What makes it even more mysterious is, misc-5.5 passes. > > Since there is no other btrfs pull, it's caused by some upstream > non-btrfs commits. For the record, 5.5-rc1 is ok again (several fixes in fs/pipe.c). So I'm going to rebase misc-next on top of that. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2019-12-09 15:32 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2019-12-04 6:06 btrfs-progs: misc/016 hangs at ioctl Qu Wenruo 2019-12-04 6:08 ` Qu Wenruo 2019-12-04 16:17 ` David Sterba 2019-12-04 16:29 ` David Sterba 2019-12-04 17:06 ` David Sterba 2019-12-09 15:32 ` David Sterba
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