linux-ext4 - Re: [e2fsprogs PATCH] resize2fs: use directio when reading superblock

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: <20230607133909.GA1309044@mit.edu>
Date:   Wed, 7 Jun 2023 09:39:09 -0400
From:   "Theodore Ts'o" <tytso@....edu>
To:     Krister Johansen <kjlx@...pleofstupid.com>
Cc:     linux-ext4@...r.kernel.org
Subject: Re: [e2fsprogs PATCH] resize2fs: use directio when reading superblock

On Mon, Jun 05, 2023 at 03:52:21PM -0700, Krister Johansen wrote:
> Invocations of resize2fs intermittently report failure due to superblock
> checksum mismatches in this author's environment.  This might happen a few
> times a week.  The following script can make this happen within minutes.
> (It assumes /dev/nvme1n1 is available and not in use by anything else).

What version of e2fsprogs are you using, and what is your environment?

Are you perhaps trying to change the UUID of the file system (for
example, in a cloud image environment) in parallel with resizing the
file system to fit the size of the block device?

     	       	       	       	   - Ted