Re: [syzbot] Re: [syzbot] [bpf?] possible deadlock in __queue_map_get

From: syzbot
Date: Fri Apr 11 2025 - 13:08:51 EST


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Subject: Re: [syzbot] [bpf?] possible deadlock in __queue_map_get
Author: memxor@xxxxxxxxx

#syz test: https://github.com/kkdwivedi/linux.git res-lock-next

On Thu, 10 Apr 2025 at 15:22, syzbot
<syzbot+8bdfc2c53fb2b63e1871@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> 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: e403941b bpf: Convert ringbuf.c to rqspinlock
> git tree: https://github.com/kkdwivedi/linux.git res-lock-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=1524f23f980000
> kernel config: https://syzkaller.appspot.com/x/.config?x=ea2b297a0891c87e
> dashboard link: https://syzkaller.appspot.com/bug?extid=8bdfc2c53fb2b63e1871
> compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
>
> Note: no patches were applied.