linux-kernel - Re: INFO: task can't die in p9_fd

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Message-ID: <20200826104919.GE4965@sirena.org.uk>
Date:   Wed, 26 Aug 2020 11:49:19 +0100
From:   Mark Brown <broonie@...nel.org>
To:     syzbot <syzbot+fbe34b643e462f65e542@...kaller.appspotmail.com>
Cc:     alsa-devel@...a-project.org, asmadeus@...ewreck.org,
        daniel.baluta@....com, davem@...emloft.net, ericvh@...il.com,
        kuba@...nel.org, lgirdwood@...il.com, linux-kernel@...r.kernel.org,
        lucho@...kov.net, netdev@...r.kernel.org, perex@...ex.cz,
        rminnich@...dia.gov, syzkaller-bugs@...glegroups.com,
        tiwai@...e.com, v9fs-developer@...ts.sourceforge.net
Subject: Re: INFO: task can't die in p9_fd_close

On Wed, Aug 26, 2020 at 03:38:15AM -0700, syzbot wrote:

> console output: https://syzkaller.appspot.com/x/log.txt?x=10615b36900000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=a61d44f28687f508
> dashboard link: https://syzkaller.appspot.com/bug?extid=fbe34b643e462f65e542
> compiler:       gcc (GCC) 10.1.0-syz 20200507
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15920a05900000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13a78539900000
> 
> The issue was bisected to:
> 
> commit af3acca3e35c01920fe476f730dca7345d0a48df
> Author: Daniel Baluta <daniel.baluta@....com>
> Date:   Tue Feb 20 12:53:10 2018 +0000
> 
>     ASoC: ak5558: Fix style for SPDX identifier

This bisection is clearly not accurate, I'm guessing the bug is
intermittent and it was just luck that landed it on this commit.

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