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https://github.com/checkpoint-restore/criu.git
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ca7841601e
Sometimes I get:
sudo ./zdtm.py run -t zdtm/live/static/cgroup03
umount: /home/tycho/packages/criu/test/zdtm.qPwsoO: target is busy
(In some cases useful info about processes that
use the device is found by lsof(8) or fuser(1).)
Traceback (most recent call last):
File "./zdtm.py", line 1401, in <module>
tst.available()
File "./zdtm.py", line 435, in available
subprocess.check_call(["flock", "zdtm_mount_cgroups", "./zdtm_mount_cgroups"])
File "/usr/lib/python2.7/subprocess.py", line 540, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['flock', 'zdtm_mount_cgroups', './zdtm_mount_cgroups']' returned non-zero exit status 1
let's use a lazy unmount so we avoid this.
Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Acked-by: Andrew Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
16 lines
512 B
Bash
Executable file
16 lines
512 B
Bash
Executable file
#!/bin/sh
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# If a controller is created during dumping processes, criu may fail with error:
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# Error (cgroup.c:768): cg: Set 3 is not subset of 2
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# so lets create all test controllers before executing tests.
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cat /proc/self/cgroup | grep -q zdtmtst.defaultroot && exit
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tdir=`mktemp -d zdtm.XXXXXX`
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for i in "zdtmtst" "zdtmtst.defaultroot"; do
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mount -t cgroup -o none,name=$i zdtm $tdir &&
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# a fake group prevents destroying of a controller
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mkdir -p $tdir/holder &&
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umount -l $tdir || exit 1
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done
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rmdir $tdir
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