From: David Sterba <dsterba@suse.cz>
To: dsterba@suse.cz, Qu Wenruo <quwenruo.btrfs@gmx.com>,
"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: btrfs-progs: misc/016 hangs at ioctl
Date: Wed, 4 Dec 2019 18:06:21 +0100 [thread overview]
Message-ID: <20191204170621.GH2734@twin.jikos.cz> (raw)
In-Reply-To: <20191204162954.GF2734@twin.jikos.cz>
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.
next prev parent reply other threads:[~2019-12-04 17:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
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 [this message]
2019-12-09 15:32 ` David Sterba
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