[lxc-users] Kernel lockups when running lxc-start (J?kel)

[Serge Hallyn]

Ok, I see.  I thought you were using something like

	lxc.rootfs = aufs:/var/lib/lxc/container-name/rootfs:/var/lib/lxc/container-name/delta

in the container configuration to have lxc do the aufs mount, rather
than setting the aufs mounts up in advance.

Quoting Daniel, Dao Quang Minh (dqminh89 at gmail.com):
> Hmm, those entries appear on the host’s /proc/self/mountinfo. I guess it’s because we union-mounts on /disk1/container-name and bind mount that to /var/lib/lxc/container-name ?  
> 
> Here are the entries for `/proc/self/mountinfo` in the container:
> 
> 1470 43 0:32 /rootfs / rw,relatime - aufs none rw,si=cbd79e20de63b17e                                                                                                               
> 1471 1470 0:33 / /proc rw,nosuid,nodev,noexec,relatime - proc proc rw                                                                                                               
> 1472 1470 0:39 / /sys rw,relatime - sysfs sysfs rw                                                                                                                                  
> 1473 1472 0:18 / /sys/fs/fuse/connections rw,relatime - fusectl none rw                                                                                                             
> 1474 1472 0:6 / /sys/kernel/debug rw,relatime - debugfs none rw                                                                                                                     
> 1475 1472 0:10 / /sys/kernel/security rw,relatime - securityfs none rw                                                                                                              
> 1476 1470 0:12 /10 /dev/lxc/console rw,nosuid,noexec,relatime - devpts devpts rw,gid=5,mode=620,ptmxmode=000                                                                        
> 1477 1470 0:12 /5 /dev/lxc/tty1 rw,nosuid,noexec,relatime - devpts devpts rw,gid=5,mode=620,ptmxmode=000                                                                            
> 1478 1470 0:12 /6 /dev/lxc/tty2 rw,nosuid,noexec,relatime - devpts devpts rw,gid=5,mode=620,ptmxmode=000                                                                            
> 1479 1470 0:12 /7 /dev/lxc/tty3 rw,nosuid,noexec,relatime - devpts devpts rw,gid=5,mode=620,ptmxmode=000                                                                            
> 1480 1470 0:12 /8 /dev/lxc/tty4 rw,nosuid,noexec,relatime - devpts devpts rw,gid=5,mode=620,ptmxmode=000                                                                            
> 44 1470 0:40 / /dev/pts rw,relatime - devpts devpts rw,gid=5,mode=620,ptmxmode=666                                                                                                  
> 50 1470 0:40 /ptmx /dev/ptmx rw,relatime - devpts devpts rw,gid=5,mode=620,ptmxmode=666                                                                                             
> 51 1470 0:41 / /run rw,nosuid,noexec,relatime - tmpfs none rw,size=1755388k,mode=755                                                                                                
> 52 51 0:447 / /run/lock rw,nosuid,nodev,noexec,relatime - tmpfs none rw,size=5120k                                                                                                  
> 69 51 0:1087 / /run/shm rw,nosuid,nodev,relatime - tmpfs none rw
> 
> 
> 
> On Wednesday, 12 March, 2014 at 10:32 pm, Serge Hallyn wrote:
> 
> > Quoting Dao Quang Minh (dqminh89 at gmail.com (mailto:dqminh89 at gmail.com)):
> > > We havent tested without the bind mounts ( but we can probably try it asap
> > > ). We migrated to 1.0.0 from 0.7.5 about a week ago, and this is the first
> > > time i've seen this bug.
> > >  
> > > `grep shared /proc/self/mountinfo` doesnt show anything, but
> > > `/proc/self/mountinfo` does display 2 entries per physical container ( i
> > > guess because of the bind mounts ):
> > >  
> > > ```
> > > 1766 39 0:764 / /disk1/container-name rw,relatime - aufs none
> > > rw,si=70f12540eaf98716
> > > 1768 38 0:764 / /var/lib/lxc/container-name rw,relatime - aufs none
> > > rw,si=70f12540eaf98716
> > >  
> >  
> >  
> > Uh, these show up in the container, right? They should not show up on
> > the host.
> >  
> > -serge
> > _______________________________________________
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> > lxc-users at lists.linuxcontainers.org (mailto:lxc-users at lists.linuxcontainers.org)
> > http://lists.linuxcontainers.org/listinfo/lxc-users
> >  
> >  
> 
> 

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