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Message-ID: <CAOQ4uxhpXGuDy4VRE4Xj9iJpR0MUh9tKYF3TegT8NQJwanHQ8g@mail.gmail.com>
Date: Sat, 6 Apr 2024 11:57:11 +0300
From: Amir Goldstein <amir73il@...il.com>
To: Al Viro <viro@...iv.linux.org.uk>
Cc: syzbot <syzbot+9a5b0ced8b1bfb238b56@...kaller.appspotmail.com>,
brauner@...nel.org, gregkh@...uxfoundation.org, hch@....de, jack@...e.cz,
linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
miklos@...redi.hu, syzkaller-bugs@...glegroups.com, tj@...nel.org,
valesini@...dex-team.ru, Hillf Danton <hdanton@...a.com>
Subject: Re: [syzbot] [kernfs?] possible deadlock in kernfs_fop_llseek
On Sat, Apr 6, 2024 at 10:11 AM Al Viro <viro@...iv.linux.org.uk> wrote:
>
> On Sat, Apr 06, 2024 at 12:05:04AM -0700, syzbot wrote:
>
> > commit: 3398bf34 kernfs: annotate different lockdep class for ..
> > git tree: https://github.com/amir73il/linux/ vfs-fixes
> > kernel config: https://syzkaller.appspot.com/x/.config?x=c5cda112a8438056
> > dashboard link: https://syzkaller.appspot.com/bug?extid=9a5b0ced8b1bfb238b56
> > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
> >
> > Note: no patches were applied.
>
Looks like it fixes the problem:
https://lore.kernel.org/lkml/000000000000a386f2061562ba6a@google.com/
Al,
Are you ok with going with your solution?
Do you want to pick it up through your tree?
Or shall I post it and ask Christian or Greg to pick it up?
Thanks,
Amir.
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