[CRIU] Checkpointing failed
Thouraya TH
thouraya87 at gmail.com
Tue Oct 7 09:02:52 PDT 2014
i work with the last version http://criu.org/Main_Page 1.3.1
2014-10-07 17:01 GMT+01:00 Tycho Andersen <tycho.andersen at canonical.com>:
> On Tue, Oct 07, 2014 at 04:53:50PM +0100, Thouraya TH wrote:
> > i have done:
> > # This derives from the global common config
> > lxc.include = /usr/share/lxc/config/common.conf
> >
> > # Default mount entries
> > lxc.mount.entry = proc proc proc nodev,noexec,nosuid 0 0
> > lxc.mount.entry = sysfs sys sysfs defaults 0 0
> > #lxc.mount.entry = /sys/fs/fuse/connections sys/fs/fuse/connections none
> > bind,optional 0 0
> > #lxc.mount.entry = /sys/kernel/debug sys/kernel/debug none bind,optional
> 0 0
> > #lxc.mount.entry = /sys/kernel/security sys/kernel/security none
> > bind,optional 0 0
> > #lxc.mount.entry = /sys/fs/pstore sys/fs/pstore none bind,optional 0 0
> > #lxc.mount.entry = tmpfs /sys/fs/pstore none bind,optional 0 0
> >
> > dump.log
> > Warn (fsnotify.c:183): fsnotify: Handle 800001:60a0d cannot be
> opened
> > Warn (fsnotify.c:183): fsnotify: Handle 800001:6511a cannot be
> opened
> > Error (files-reg.c:455): Can't link remap to /proc/38/mountinfo: No such
> > file or directory
>
> Which version of criu are you using? I think you'll need the
> development version to fix this.
>
> Tycho
>
> > Error (cr-dump.c:1603): Dump files (pid: 2473) failed with -1
> > Error (cr-dump.c:1953): Dumping FAILED.
> >
> > 2014-10-07 16:41 GMT+01:00 Andrey Vagin <avagin at parallels.com>:
> >
> > > On Tue, Oct 07, 2014 at 04:32:34PM +0100, Thouraya TH wrote:
> > > > what i have done exactly:
> > > >
> > > > root at thouraya-Lenovo-3000-N500:~# vim
> > > /usr/share/lxc/config/ubuntu.common.conf
> > > >
> > > > # This derives from the global common config
> > > > lxc.include = /usr/share/lxc/config/common.conf
> > > >
> > > > # Default mount entries
> > > > lxc.mount.entry = proc proc proc nodev,noexec,nosuid 0 0
> > > > lxc.mount.entry = sysfs sys sysfs defaults 0 0
> > > > lxc.mount.entry = /sys/fs/fuse/connections sys/fs/fuse/connections
> none
> > > > bind,optional 0 0
> > > > lxc.mount.entry = /sys/kernel/debug sys/kernel/debug none
> bind,optional
> > > 0 0
> > > > lxc.mount.entry = /sys/kernel/security sys/kernel/security none
> > > bind,optional 0
> > > > 0
> > > > #lxc.mount.entry = /sys/fs/pstore sys/fs/pstore none bind,optional 0
> 0
> > > > lxc.mount.entry = tmpfs /sys/fs/pstore none bind,optional 0 0
> > >
> > > Could you comment out all lines here except proc and sysfs?
> > >
> > > >
> > > > ...
> > > >
> > > > root at thouraya-Lenovo-3000-N500:~# lxc-checkpoint -s -D
> > > /home/thouraya/lxcCR -n
> > > > u1
> > > > Checkpointing u1 failed.
> > > >
> > > > dump.log:
> > > > Warn (fsnotify.c:183): fsnotify: Handle 800001:60a0d cannot be
> > > opened
> > > > Warn (fsnotify.c:183): fsnotify: Handle 800001:6511a cannot be
> > > opened
> > > > Error (parasite-syscall.c:387): si_code=4 si_pid=2886 si_status=5
> > > > Error (parasite-syscall.c:387): si_code=4 si_pid=2887 si_status=5
> > > > Error (parasite-syscall.c:387): si_code=4 si_pid=2888 si_status=5
> > > > Error (mount.c:448): 75:./sys/fs/pstore doesn't have a proper root
> mount
> > > > Error (cr-dump.c:1953): Dumping FAILED.
> > > >
> > > >
> > > > i have to mount pstore ?
> > > > > As you know i have already done this:
> > > > >
> > > > > root at u1:/# sudo umount /sys/fs/pstore
> > > > > root at u1:/# vim /etc/fstab
> > > > > root at u1:/# vim /etc/fstab
> > > > >
> > > > > i have only this line in the file:
> > > > > -- > # UNCONFIGURED FSTAB FOR BASE SYSTEM
> > > > >
> > > > > root at u1:/# rmdir /sys/fs/pstore
> > > > > rmdir: échec de suppression de «/sys/fs/pstore»: Permission non
> > > accordée
> > > > > root at u1:/# sudo rmdir /sys/fs/pstore
> > > > > rmdir: échec de suppression de «/sys/fs/pstore»: Permission non
> > > accordée
> > > > > root at u1:/# sudo su
> > > > > root at u1:/# rmdir /sys/fs/pstore
> > > > > rmdir: échec de suppression de «/sys/fs/pstore»: Permission non
> > > accordée
> > > > > root at u1:/#
> > > >
> > > > Bests.
> > > >
> > > >
> > > > 2014-10-07 16:17 GMT+01:00 Thouraya TH <thouraya87 at gmail.com>:
> > > >
> > > > i'm sorry, i will try not in the container :(
> > > >
> > > > 2014-10-07 16:15 GMT+01:00 Thouraya TH <thouraya87 at gmail.com>:
> > > >
> > > > Inside the container:
> > > > root at u1:/# sudo umount /sys/fs/fuse/connections
> > > > root at u1:/#
> > > >
> > > > root at u1:/# cd /usr/share/lxc/config/
> > > > bash: cd: /usr/share/lxc/config/: Aucun fichier ou dossier
> de ce
> > > type
> > > > root at u1:/# cat /usr/share/lxc/config/ubuntu.common.conf
> > > > cat: /usr/share/lxc/config/ubuntu.common.conf: Aucun fichier
> ou
> > > dossier
> > > > de ce type
> > > >
> > > > ?
> > > >
> > > > 2014-10-07 15:49 GMT+01:00 Serge Hallyn <
> serge.hallyn at ubuntu.com
> > > >:
> > > >
> > > > Quoting Thouraya TH (thouraya87 at gmail.com):
> > > > > root at u1:/# sudo umount /sys/fs/fuse/
> > > > > umount : /sys/fs/fuse/ : n'est pas monté
> > > > >
> > > > > !!
> > > > > it doesn't work
> > > > >
> > > > > As you know i have already done this:
> > > > >
> > > > > root at u1:/# sudo umount /sys/fs/pstore
> > > > > root at u1:/# vim /etc/fstab
> > > > > root at u1:/# vim /etc/fstab
> > > > >
> > > > > i have only this line in the file:
> > > > > -- > # UNCONFIGURED FSTAB FOR BASE SYSTEM
> > > > >
> > > > > root at u1:/# rmdir /sys/fs/pstore
> > > > > rmdir: échec de suppression de «/sys/fs/pstore»:
> > > Permission non
> > > > accordée
> > > > > root at u1:/# sudo rmdir /sys/fs/pstore
> > > > > rmdir: échec de suppression de «/sys/fs/pstore»:
> > > Permission non
> > > > accordée
> > > > > root at u1:/# sudo su
> > > > > root at u1:/# rmdir /sys/fs/pstore
> > > > > rmdir: échec de suppression de «/sys/fs/pstore»:
> > > Permission non
> > > > accordée
> > > > > root at u1:/#
> > > >
> > > > Ok I don't know whether you're having a problem with
> pstore
> > > at c/r
> > > > or
> > > > not as that seems unrelated to the fuse gorp, but if you
> are
> > > having
> > > > a
> > > > problem with pstore, then
> > > >
> > > > Edit /usr/share/lxc/config/ubuntu.common.conf, comment
> out
> > > >
> > > > lxc.mount.entry = /sys/fs/pstore sys/fs/pstore none
> > > bind,optional 0
> > > > 0
> > > >
> > > > and add
> > > >
> > > > lxc.mount.entry = tmpfs /sys/fs/pstore none
> bind,optional 0 0
> > > >
> > > > That should keep mountall from trying to mount pstore.
> > > >
> > > > I think what you really want to do is teach criu to
> simply
> > > mark
> > > > that pstore
> > > > was mounted, then simply bind-mount it from the host
> again at
> > > > restart.
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
>
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