<div dir="ltr">Hi Andrew,<div><br></div><div>I was kind of afraid of this because none of the kernels that I had supported mnt_id. I will install 3.15 to investigate the issue and get back to you soon.</div><div><br></div>
<div>--Saied</div><div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Sep 2, 2014 at 7:05 AM, Andrew Vagin <span dir="ltr"><<a href="mailto:avagin@parallels.com" target="_blank">avagin@parallels.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Saied,<br>
<br>
I found an issue, which blocks testing of aufs.<br>
We can't dump nothing on a new kernel (3.15), which shows mnt_id in<br>
/proc/PID/fdinfo/FD. Looks like we need to fixup mnt_id for aufs files<br>
too.<br>
<br>
Said, could you look at this issue?<br>
<br>
<br>
[root@avagin-fc19-cr criu]# bash test/zdtm.sh --aufs ns/static/env00<br>
================================= CRIU CHECK =================================<br>
Error (timerfd.c:56): timerfd: No timerfd support for c/r: Inappropriate ioctl for device<br>
============================= WARNING =============================<br>
Not all features needed for CRIU are merged to upstream kernel yet,<br>
so for now we maintain our own branch which can be cloned from:<br>
git://<a href="http://git.kernel.org/pub/scm/linux/kernel/git/gorcunov/linux-cr.git" target="_blank">git.kernel.org/pub/scm/linux/kernel/git/gorcunov/linux-cr.git</a><br>
===================================================================<br>
Execute zdtm/live/static/env00<br>
./env00 --pidfile=env00.pid --outfile=env00.out --envname=ENV_00_TEST<br>
/root/git/orig/criu/test<br>
Dump 30437<br>
WARNING: env00 returned 1 and left running for debug needs<br>
Test: zdtm/live/static/env00, Result: FAIL<br>
==================================== ERROR ====================================<br>
Test: zdtm/live/static/env00, Namespace: 1<br>
Dump log : /root/git/orig/criu/test/dump/static/env00/30437/1/dump.log<br>
--------------------------------- grep Error ---------------------------------<br>
(00.035741) Error (files-reg.c:629): Unable to look up the 33 mount<br>
(00.035771) Error (cr-dump.c:1665): Dump mappings (pid: 30437) failed with -1<br>
(00.036042) Error (cr-dump.c:1953): Dumping FAILED.<br>
------------------------------------- END -------------------------------------<br>
================================= ERROR OVER =================================<br>
<br>
[root@avagin-fc19-cr criu]# cat /proc/30437/mountinfo<br>
68 42 0:33 / / rw,relatime - aufs none rw,si=46777ba2737567db<br>
43 68 0:35 / /proc rw,relatime - proc proc rw<br>
44 68 0:36 / /dev/pts rw,relatime - devpts pts rw,mode=666,ptmxmode=666<br>
<br>
[root@avagin-fc19-cr criu]# cat /proc/self/mountinfo | grep ^33<br>
33 0 8:3 / / rw,relatime shared:1 - ext4 /dev/sda3 rw,data=ordered<br>
<div class="HOEnZb"><div class="h5"><br>
<br>
<br>
On Sat, Aug 30, 2014 at 02:49:22PM +0400, Andrew Vagin wrote:<br>
> And here are a few issues:<br>
><br>
> + cat /tmp/criu-root.7GvnTZ/dump/static/cwd01/6970/1/dump.log<br>
> (00.012328) Error (cr-dump.c:303): Can't open 6974/cwd on procfs: Stale file handle<br>
> (00.012350) Error (cr-dump.c:1671): Dump fs (pid: 6974) failed with -1<br>
> (00.012528) Error (cr-dump.c:1953): Dumping FAILED.<br>
><br>
> + cat /tmp/criu-root.HTTKBE/dump/static/unlink_fstat03/14801/1/dump.log<br>
> (00.009870) Error (files-reg.c:455): Can't link remap to /zdtm/live/static/unlink_fstat03.test (deleted): No such file or directory<br>
> (00.009906) Error (cr-dump.c:1603): Dump files (pid: 14805) failed with -1<br>
> (00.010533) Error (cr-dump.c:1953): Dumping FAILED.<br>
><br>
> + cat /tmp/criu-root.HDf6Nn/dump/static/unlink_mmap00/23065/1/dump.log<br>
> (00.008996) Error (proc_parse.c:472): Failed stat on 23069's map 47071697305600 (/tmp/criu-root.HDf6Nn/zdtm/live/static/unlink_mmap00.test (deleted)): No such file or directory<br>
> (00.009021) Error (cr-dump.c:1515): Collect mappings (pid: 23069) failed with -1<br>
> (00.009228) Error (cr-dump.c:1953): Dumping FAILED.<br>
><br>
> + cat /tmp/criu-root.XULszc/dump/static/inotify00/30616/1/dump.log<br>
> (00.010422) Error (proc_parse.c:1345): parse_fdinfo_pid_s: error parsing [inotify wd:2 ino:1202 sdev:24 mask:800afff ignored_mask:0<br>
> (00.010465) Error (cr-dump.c:1603): Dump files (pid: 30620) failed with -1<br>
> (00.011124) Error (cr-dump.c:1953): Dumping FAILED.<br>
><br>
> We have problems with unlinked files and fsnotifies.<br>
><br>
> Cc: Saied Kazemi <<a href="mailto:saied@google.com">saied@google.com</a>><br>
> Signed-off-by: Andrew Vagin <<a href="mailto:avagin@openvz.org">avagin@openvz.org</a>><br>
> ---<br>
> test/zdtm.sh | 11 ++++++++++-<br>
> 1 file changed, 10 insertions(+), 1 deletion(-)<br>
><br>
> diff --git a/test/zdtm.sh b/test/zdtm.sh<br>
> index eee3342..f92a63f 100755<br>
> --- a/test/zdtm.sh<br>
> +++ b/test/zdtm.sh<br>
> @@ -412,7 +412,12 @@ start_test()<br>
> mkdir -p dump<br>
> ZDTM_ROOT=`mktemp -d /tmp/criu-root.XXXXXX`<br>
> ZDTM_ROOT=`readlink -f $ZDTM_ROOT`<br>
> - mount --make-private --bind . $ZDTM_ROOT || return 1<br>
> + if [ -z "$ZDTM_AUFS" ]; then<br>
> + mount --make-private --bind . $ZDTM_ROOT || return 1<br>
> + else<br>
> + mount -t aufs -o br=. none $ZDTM_ROOT || return 1<br>
> + cd $ZDTM_ROOT<br>
> + fi<br>
> fi<br>
> construct_root $ZDTM_ROOT $test || return 1<br>
> export ZDTM_NEWNS=1<br>
> @@ -901,6 +906,10 @@ while :; do<br>
> }<br>
> shift<br>
> ;;<br>
> + --aufs)<br>
> + export ZDTM_AUFS=1<br>
> + shift<br>
> + ;;<br>
> -*)<br>
> echo "Unrecognized option $1, aborting!" 1>&2<br>
> usage<br>
> --<br>
> 1.9.3<br>
><br>
</div></div></blockquote></div><br></div>