linux-ext4 - Re: e2scrub finds corruption immediately after mounting

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Message-ID: <51aa3ceea05945c9f28e884bc2f43a249ef7e23e.camel@interlinx.bc.ca>
Date: Thu, 04 Jan 2024 09:10:13 -0500
From: "Brian J. Murrell" <brian@...erlinx.bc.ca>
To: linux-ext4@...r.kernel.org
Subject: Re: e2scrub finds corruption immediately after mounting

On Wed, 2024-01-03 at 23:38 -0500, Theodore Ts'o wrote:
> What distribution are you using,

EL8, specifically AlmaLinux 8.9.

> and what version of the kernel are
> you using?

EL8 is currently shipping 4.18.0-513.9.1.el8_9.x86_64 but as you know
at this point in an EL8 kernel's life, the version hardly reflects
what's actually in the kernel due to the copious backporting RH do
their kernel.

> This error means that e2fsck exited with a non-zero exit status.
> Which is strange because there is no report of any kind of problem
> from e2fsck in its output.

Indeed!  I even added debug output to e2scrub to print e2fsck's exit
value and it's usually 1.

> My best guess is that e2fsck from 1.45.6 is somehow returning a
> non-zero exit status for some reason.  So the first thing I'd suggest
> is upgrading to e2fsprogs 1.47.0 and see if that causes the problem
> to
> resolve itself.

Unfortunately, that doesn't seem to be the solution.  :-(

+ umount /opt
+ e2fsck -y /dev/rootvol_tmp/almalinux8_opt
e2fsck 1.47.0 (5-Feb-2023)
/dev/rootvol_tmp/almalinux8_opt: clean, 1698/178816 files, 482473/716800 blocks
+ e2scrub /dev/rootvol_tmp/almalinux8_opt
  Logical volume "almalinux8_opt.e2scrub" created.
e2fsck 1.47.0 (5-Feb-2023)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/rootvol_tmp/almalinux8_opt.e2scrub: 1698/178816 files (87.0% non-contiguous), 482473/716800 blocks
/dev/rootvol_tmp/almalinux8_opt: Scrub succeeded.
tune2fs 1.47.0 (5-Feb-2023)
Setting current mount count to 0
Setting time filesystem last checked to Thu Jan  4 09:07:56 2024

  Logical volume "almalinux8_opt.e2scrub" successfully removed.
+ mount /opt
+ e2scrub /dev/rootvol_tmp/almalinux8_opt
  Logical volume "almalinux8_opt.e2scrub" created.
e2fsck 1.47.0 (5-Feb-2023)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/rootvol_tmp/almalinux8_opt.e2scrub: 1698/178816 files (87.0% non-contiguous), 482473/716800 blocks
/dev/rootvol_tmp/almalinux8_opt: Scrub FAILED due to corruption!  Unmount and run e2fsck -y.
tune2fs 1.47.0 (5-Feb-2023)
Setting filesystem error flag to force fsck.
  Logical volume "almalinux8_opt.e2scrub" successfully removed.

Cheers,
b.



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