Messages in this thread | | | Subject | Re: [syzbot] possible deadlock in mnt_want_write (2) | From | Mimi Zohar <> | Date | Thu, 22 Jul 2021 09:50:06 -0400 |
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[CC'ing Hillf Danton <hdanton@sina.com>]
Hi Miklos,
On Mon, 2021-07-19 at 17:11 +0200, Miklos Szeredi wrote: > [CC: linux-intergrity] > > On Tue, 15 Jun 2021 at 18:59, syzbot > <syzbot+b42fe626038981fb7bfa@syzkaller.appspotmail.com> wrote: > > > > Hello, > > > > syzbot found the following issue on: > > > > HEAD commit: 06af8679 coredump: Limit what can interrupt coredumps > > git tree: upstream > > console output: https://syzkaller.appspot.com/x/log.txt?x=162f99afd00000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=547a5e42ca601229 > > dashboard link: https://syzkaller.appspot.com/bug?extid=b42fe626038981fb7bfa > > compiler: Debian clang version 11.0.1-2 > > > > Unfortunately, I don't have any reproducer for this issue yet.
There was a similar syzbot report and followup discussion [1]. According to Amir Goldstein, it's a false positive lockdep warning. At this point we understand how to fix the problem, but are waiting for a reproducer.
thanks,
Mimi
[1] Message-Id: <20210616090142.734-1-hdanton@sina.com>
> > > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > > Reported-by: syzbot+b42fe626038981fb7bfa@syzkaller.appspotmail.com
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