From: "Maurizio Lombardi" <mlombard@arkamax.eu>
To: "syzbot" <syzbot+4a1d521d19d6321f5aad@syzkaller.appspotmail.com>,
<hch@lst.de>, <kch@nvidia.com>, <linux-kernel@vger.kernel.org>,
<linux-nvme@lists.infradead.org>, <sagi@grimberg.me>,
<syzkaller-bugs@googlegroups.com>
Subject: Re: [syzbot] [nvme?] WARNING in nvme_loop_reset_ctrl_work
Date: Mon, 14 Sep 2026 11:21:55 +0200 [thread overview]
Message-ID: <DLEXGM8VZOW9.1J9A20FEP43RM@arkamax.eu> (raw)
In-Reply-To: <6aa6c282.4c28b7d0.c1bba.000d.GAE@google.com>
On Sun Sep 13, 2026 at 5:34 PM CEST, syzbot wrote:
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: 2f0c1cf72f46 Merge tag 's390-7.3-3' of git://git.kernel.or..
> git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> console output: https://syzkaller.appspot.com/x/log.txt?x=159b19f9580000
> kernel config: https://syzkaller.appspot.com/x/.config?x=8c5c3949d762a91f
> dashboard link: https://syzkaller.appspot.com/bug?extid=4a1d521d19d6321f5aad
> compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1074f615580000
It seems that a reset operation is enqueued before the controller
initialization is completed.
when the nvme_loop_reset_ctrl_work() finally runs, it will find the
controller in LIVE state, thus hitting the WARN_ON().
Maurizio
next prev parent reply other threads:[~2026-09-14 9:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-07 15:16 syzbot
2026-09-13 15:34 ` syzbot
2026-09-14 9:21 ` Maurizio Lombardi [this message]
2026-09-14 10:16 ` Maurizio Lombardi
2026-09-14 15:20 ` Keith Busch
2026-09-14 15:25 ` Maurizio Lombardi
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