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

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Date: Thu, 04 Jan 2024 09:37:31 -0500
From: "Brian J. Murrell" <brian@...erlinx.bc.ca>
To: linux-ext4@...r.kernel.org
Subject: Re: e2scrub finds corruption immediately after mounting

As a point of reference, the aforementioned lvcheck doesn't seem to
find any corruption on the same device and here is what it's doing:

…
+ lvcreate -s -L 256M -n almalinux8_opt-lvcheck-temp-20240104 rootvol_tmp/almalinux8_opt
  Logical volume "almalinux8_opt-lvcheck-temp-20240104" created.
+ perform_check /dev/rootvol_tmp/almalinux8_opt-lvcheck-temp-20240104 ext2 /tmp/lvcheck.log.e0Xq523Wio
+ local dev=/dev/rootvol_tmp/almalinux8_opt-lvcheck-temp-20240104
+ local fstype=ext2
+ local tmpfile=/tmp/lvcheck.log.e0Xq523Wio
+ case "$fstype" in
+ nice logsave -as /tmp/lvcheck.log.e0Xq523Wio e2fsck -p -C 0 /dev/rootvol_tmp/almalinux8_opt-lvcheck-temp-20240104
/dev/rootvol_tmp/almalinux8_opt-lvcheck-temp-20240104 contains a file system with errors, check forced.
/dev/rootvol_tmp/almalinux8_opt-lvcheck-temp-20240104: 1698/178816 files (87.0% non-contiguous), 482473/716800 blocks
e2fsck exited with status code 1
+ nice logsave -as /tmp/lvcheck.log.e0Xq523Wio e2fsck -fy -C 0 /dev/rootvol_tmp/almalinux8_opt-lvcheck-temp-20240104
e2fsck 1.47.0 (5-Feb-2023)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure                                           
Pass 3: Checking directory connectivity                                        
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/rootvol_tmp/almalinux8_opt-lvcheck-temp-20240104: 1698/178816 files (87.0% non-contiguous), 482473/716800 blocks
+ return 0
+ log info 'Background scrubbing of /dev/rootvol_tmp/almalinux8_opt succeeded.'
+ local sev=info
+ local 'msg=Background scrubbing of /dev/rootvol_tmp/almalinux8_opt succeeded.'
+ local arg=
+ '[' info == emerg -o info == alert -o info == crit -o info == err -o info == warning ']'
+ logger -t lvcheck -p user.info -- 'Background scrubbing of /dev/rootvol_tmp/almalinux8_opt succeeded.'
+ try_delay_checks /dev/rootvol_tmp/almalinux8_opt ext2
+ local dev=/dev/rootvol_tmp/almalinux8_opt
+ local fstype=ext2
+ case "$fstype" in
+ tune2fs -C 0 -T now /dev/rootvol_tmp/almalinux8_opt
tune2fs 1.47.0 (5-Feb-2023)
Setting current mount count to 0
Setting time filesystem last checked to Thu Jan  4 09:29:25 2024

The significant difference between lvcheck and e2scrub seems to be the
'-E journal_only' option to e2fsck that e2scrub is adding.

Cheers,
b.


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