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Message-ID: <20240516155239.GF4449@suse.cz>
Date: Thu, 16 May 2024 17:52:39 +0200
From: David Sterba <dsterba@...e.cz>
To: syzbot <syzbot+3706b1df47f2464f0c1e@...kaller.appspotmail.com>
Cc: clm@...com, dsterba@...e.com, josef@...icpanda.com,
linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org,
syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] WARNING in btrfs_put_transaction
On Wed, Nov 30, 2022 at 11:58:38AM -0800, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 644e9524388a Merge tag 'for-v6.1-rc' of git://git.kernel.o..
> git tree: upstream
> console+strace: https://syzkaller.appspot.com/x/log.txt?x=134bee03880000
> kernel config: https://syzkaller.appspot.com/x/.config?x=8d01b6e3197974dd
> dashboard link: https://syzkaller.appspot.com/bug?extid=3706b1df47f2464f0c1e
> compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1476f2c3880000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17e6e3c9880000
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/0968428e17b4/disk-644e9524.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/fd4c3bfd0777/vmlinux-644e9524.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/ee4571f27f1c/bzImage-644e9524.xz
> mounted in repro: https://storage.googleapis.com/syzbot-assets/68219d51df73/mount_0.gz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+3706b1df47f2464f0c1e@...kaller.appspotmail.com
>
> ------------[ cut here ]------------
> WARNING: CPU: 0 PID: 3706 at fs/btrfs/transaction.c:132 btrfs_put_transaction+0x377/0x3d0
That was an injected ENOMEM that then hit a transaction abort, we used
to print a full trace on that but it's been silenced.
#syz fix: btrfs: don't print stack trace when transaction is aborted due to ENOMEM
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