** Description changed:
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:
+ change in 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:
+ 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
+ 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 $kpartx_ret
- fi
- fi
- unset backing_img
- fi
+ if [ -n "${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
+ if [ -z "${rootfs_dev_mapper}" ]; then
+ return 0
+ fi
- unset loop_device
- unset loop_raw
- unset rootfs_dev_mapper
+ 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.
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https://bugs.launchpad.net/bugs/1747044
Title:
kpartx 0.7.4-2ubuntu1 in bionic does not remove loop devices
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