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

syzbot
2025-04-04T15:01:03Z

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
unregister_netdevice: waiting for DEV to become free

unregister_netdevice: waiting for batadv0 to become free. Usage count = 3

Tested on:

commit: 665c7e64 loop: replace freezing queue with quiesce & f..
git tree: https://github.com/ming1/linux.git syzbot-test
console output: https://syzkaller.appspot.com/x/log.txt?x=12321178580000
kernel config: https://syzkaller.appspot.com/x/.config?x=adffebefc9feb9d6
dashboard link: https://syzkaller.appspot.com/bug?extid=9dd7dbb1a4b915dee638
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.