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

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Date: Thu, 04 Jan 2024 09:13:53 -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 20:55 -0800, Darrick J. Wong wrote:
> Curious.  Normally e2scrub will run e2fsck twice: Once in journal-
> only
> preen mode to replay the journal, then again with -fy to perform the
> full filesystem (snapshot) check.

It is doing that.  I suspect the first e2fsck is silent.

> I wonder if you would paste the output of
> "bash -x e2scrub /dev/rootvol_tmp/almalinux8_opt" here?  I'd be
> curious
> to see what the command flow is.

Sure.

+ PATH=/sbin:/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/.dotnet/tools
+ ((  0 != 0  ))
+ snap_size_mb=256
+ fstrim=0
+ reap=0
+ e2fsck_opts=
+ conffile=/etc/e2scrub.conf
+ test -f /etc/e2scrub.conf
+ . /etc/e2scrub.conf
++ periodic_e2scrub=1
++ sender=e2scrub@....interlinx.bc.ca
+ getopts nrtV opt
+ shift 0
+ arg=/dev/rootvol_tmp/almalinux8_opt
+ '[' -z /dev/rootvol_tmp/almalinux8_opt ']'
+ type lsblk
+ type lvcreate
+ exec
+ '[' -b /dev/rootvol_tmp/almalinux8_opt ']'
++ dev_from_arg /dev/rootvol_tmp/almalinux8_opt
++ local dev=/dev/rootvol_tmp/almalinux8_opt
+++ lsblk -o FSTYPE -n /dev/rootvol_tmp/almalinux8_opt
++ local fstype=ext2
++ case "${fstype}" in
++ echo /dev/rootvol_tmp/almalinux8_opt
++ return 0
+ dev=/dev/rootvol_tmp/almalinux8_opt
++ mnt_from_dev /dev/rootvol_tmp/almalinux8_opt
++ local dev=/dev/rootvol_tmp/almalinux8_opt
++ '[' -n /dev/rootvol_tmp/almalinux8_opt ']'
++ lsblk -o MOUNTPOINT -n /dev/rootvol_tmp/almalinux8_opt
+ mnt=/opt
+ '[' '!' -e /dev/rootvol_tmp/almalinux8_opt ']'
++ lvs --nameprefixes -o name,vgname,lv_role --noheadings /dev/rootvol_tmp/almalinux8_opt
+ lvm_vars='  LVM2_LV_NAME='\''almalinux8_opt'\'' LVM2_VG_NAME='\''rootvol_tmp'\'' LVM2_LV_ROLE='\''public'\'''
+ eval '  LVM2_LV_NAME='\''almalinux8_opt'\'' LVM2_VG_NAME='\''rootvol_tmp'\'' LVM2_LV_ROLE='\''public'\'''
++ LVM2_LV_NAME=almalinux8_opt
++ LVM2_VG_NAME=rootvol_tmp
++ LVM2_LV_ROLE=public
+ '[' -z rootvol_tmp ']'
+ '[' -z almalinux8_opt ']'
+ echo public
+ grep -q snapshot
++ date +%Y%m%d%H%M%S
+ start_time=20240104091039
+ snap=almalinux8_opt.e2scrub
+ snap_dev=/dev/rootvol_tmp/almalinux8_opt.e2scrub
+ '[' 0 -gt 0 ']'
+ setup
++ date +%s
+ lvremove_deadline=1704377469
+ lvremove -f rootvol_tmp/almalinux8_opt.e2scrub
+ '[' -e /dev/rootvol_tmp/almalinux8_opt.e2scrub ']'
+ '[' -e /dev/rootvol_tmp/almalinux8_opt.e2scrub ']'
+ lvcreate -s -L 256m -n almalinux8_opt.e2scrub rootvol_tmp/almalinux8_opt
  Logical volume "almalinux8_opt.e2scrub" created.
+ '[' 0 -ne 0 ']'
+ udevadm settle
+ return 0
+ trap 'teardown; exit 1' EXIT INT QUIT TERM
+ check
+ E2FSCK_FIXES_ONLY=1
+ export E2FSCK_FIXES_ONLY
+ /usr/sbin/e2fsck -E journal_only -p /dev/rootvol_tmp/almalinux8_opt.e2scrub
+ /usr/sbin/e2fsck -f -y /dev/rootvol_tmp/almalinux8_opt.e2scrub
e2fsck 1.47.0 (5-Feb-2023)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/rootvol_tmp/almalinux8_opt.e2scrub: 1698/178816 files (87.0% non-contiguous), 482473/716800 blocks
+ case "$?" in
++ lvs -o lv_snapshot_invalid --noheadings /dev/rootvol_tmp/almalinux8_opt.e2scrub
++ awk '{print $1}'
+ is_invalid=
+ '[' -n '' ']'
+ echo '/dev/rootvol_tmp/almalinux8_opt: Scrub FAILED due to corruption!  Unmount and run e2fsck -y.'
/dev/rootvol_tmp/almalinux8_opt: Scrub FAILED due to corruption!  Unmount and run e2fsck -y.
+ mark_corrupt
+ /usr/sbin/tune2fs -E force_fsck /dev/rootvol_tmp/almalinux8_opt
tune2fs 1.47.0 (5-Feb-2023)
Setting filesystem error flag to force fsck.
+ ret=6
+ teardown
+ lvremove -f rootvol_tmp/almalinux8_opt.e2scrub
  Logical volume "almalinux8_opt.e2scrub" successfully removed.
+ '[' -e /dev/rootvol_tmp/almalinux8_opt.e2scrub ']'
+ trap '' EXIT
+ exitcode 6
+ ret=6
+ '[' -n '' -a 6 -ne 0 ']'
+ exit 6

Cheers,
b.


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