linux-ext4 - Re: kernel panics when hot removing U.2 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] [day] [month] [year] [list]

Date:   Thu, 24 Sep 2020 07:14:28 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Meng Wang <meng@...atainc.com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Keith Busch <kbusch@...nel.org>,
        "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
        "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>
Subject: Re: kernel panics when hot removing U.2 nvme disk

On Thu, Sep 24, 2020 at 05:47:12AM +0000, Meng Wang wrote:
> Thanks for the info. Is it a problem solely for ext4 + nvme combination? If we change file system or use SATA drive, will the problem get workaround?

This will be called for all removals.  I think the root cause probably
is in ext4 where the evict_inode method doesn't properly deal with
non available storage.