[CRIU] Checkpointing failed
Thouraya TH
thouraya87 at gmail.com
Tue Oct 7 08:53:50 PDT 2014
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
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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