linux-kernel - Re: [RFC PATCH] nvme: prevent hang on surprise removal of NVMe disk

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20220215191731.GB25076@lst.de>
Date:   Tue, 15 Feb 2022 20:17:31 +0100
From:   Christoph Hellwig <hch@....de>
To:     Markus Blöchl <markus.bloechl@...tronik.com>
Cc:     Keith Busch <kbusch@...nel.org>, Jens Axboe <axboe@...nel.dk>,
        Christoph Hellwig <hch@....de>,
        Sagi Grimberg <sagi@...mberg.me>,
        linux-nvme@...ts.infradead.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, Stefan Roese <sr@...x.de>
Subject: Re: [RFC PATCH] nvme: prevent hang on surprise removal of NVMe disk

On Mon, Feb 14, 2022 at 10:51:07AM +0100, Markus Blöchl wrote:
> After the surprise removal of a mounted NVMe disk the pciehp task
> reliably hangs forever with a trace similar to this one:

Do you have a specific reproducer? At least with doing a

echo 1 > /sys/.../remove

while running fsx on a file system I can't actually reproduce it.