Re: [syzbot] [block?] possible deadlock in blk_mq_submit_bio

Ming Lei
2024-11-27T05:59:30Z

On Sat, Nov 23, 2024 at 11:37 PM syzbot
<syzbot+5218c85078236fc46227@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 06afb0f36106 Merge tag 'trace-v6.13' of git://git.kernel.o..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=148bfec0580000
> kernel config: https://syzkaller.appspot.com/x/.config?x=b011a14ee4cb9480
> dashboard link: https://syzkaller.appspot.com/bug?extid=5218c85078236fc46227
> compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
> userspace arch: i386
>
> Unfortunately, I don't have any reproducer for this issue yet.
>
> Downloadable assets:
> disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-06afb0f3.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/aae0561fd279/vmlinux-06afb0f3.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/faa3af3fa7ce/bzImage-06afb0f3.xz
...

> If the report is already addressed, let syzbot know by replying with:
> #syz fix: exact-commit-title
>
> If you want to overwrite report's subsystems, reply with:
> #syz set subsystems: new-subsystem
> (See the list of subsystem names on the web dashboard)
>
> If the report is a duplicate of another one, reply with:
> #syz dup: exact-subject-of-another-report

#syz test: https://github.com/ming1/linux v6.13/block-fix