Public bug reported:
We're seeing a problem now when running livecd-rootfs in bionic with
kpartx from 0.7.4-2ubuntu1. The issue appears to be the result in a
change in output of kpartx, as a result, the /dev/loop devices are not
getting deleted. The best data I have from this so far is a comparison
between old and current build logs. The old logs showed:
++ kpartx -v -d binary/boot/disk-uefi.ext4
+ kpartx_stdout='del devmap : loop0p15
del devmap : loop0p14
del devmap : loop0p1
loop deleted : /dev/loop0'
+ echo 'del devmap : loop0p15
del devmap : loop0p14
del devmap : loop0p1
loop deleted : /dev/loop0'
Thew new logs show:
++ kpartx -v -d binary/boot/disk-uefi.ext4
+ kpartx_stdout=
+ echo ''
The code being run is from the 'functions' in lp:livecd-rootfs. In the current
runs, kpartx_stdout is an empty string:
clean_loops() {
local kpartx_ret
local kpartx_stdout
if [ -n "${backing_img}" ]; then
# sync before removing loop to avoid "Device or resource busy" errors
sync
kpartx_ret=""
kpartx_stdout=$(kpartx -v -d "${backing_img}") || kpartx_ret=$?
echo "$kpartx_stdout"
if [ -n "$kpartx_ret" ]; then
if echo "$kpartx_stdout" | grep -q "loop deleted"; then
echo "Suppressing kpartx returning error (#860894)"
else
exit $kpartx_ret
fi
fi
unset backing_img
fi
if [ -z "${rootfs_dev_mapper}" ]; then
return 0
fi
unset loop_device
unset loop_raw
unset rootfs_dev_mapper
}
I am doing some further debugging on this and am trying to reproduce
this outside of launchpad. I am not able to post a full build log. But I
can probably post a longer 'sanitized' bit.
** Affects: multipath-tools (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1747044
Title:
kpartx output has changed in 0.7.4-2ubuntu1 package
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