[Lxc-users] lxc on fedora 15 (was : cgroups: support cgroups mounted in multiple places)

[Serge E. Hallyn]

Quoting Daniel Lezcano (daniel.lezcano at free.fr):
> fedora 15 has a patched kernel with utrace.

By patched, you mean utrace is not upstream?

> Are we sure, utrace is pid namespace aware ?

I've not looked at it, no.

> My natty container booted on fedora 15 but is stuck at:
> 
> \_ lxc-start -n natty -l DEBUG -o /dev/pts/0
>     \_ /sbin/init
>         \_ /sbin/plymouthd --mode=boot --attach-to-session
>             \_ /sbin/plymouthd --mode=boot --attach-to-session

Does this only happen with my patches?

> pidof /sbin/plymouthd
> 6224 6222
> 
> cat /proc/6224/stack
> [<ffffffff81098ad9>] utrace_stop+0x128/0x181
> [<ffffffff81098b9c>] finish_resume_report+0x6a/0xb2
> [<ffffffff810999ea>] utrace_get_signal+0x460/0x5a6
> [<ffffffff81064d0a>] get_signal_to_deliver+0x102/0x3a9
> [<ffffffff81008f43>] do_signal+0x69/0x67f
> [<ffffffff8100959a>] do_notify_resume+0x28/0x83
> [<ffffffff81009e90>] int_signal+0x12/0x17
> [<ffffffffffffffff>] 0xffffffffffffffff
> 
> cat /proc/6222/stack
> [<ffffffff8112882d>] pipe_wait+0x61/0x7c
> [<ffffffff81128fe6>] pipe_read+0x344/0x3c1
> [<ffffffff811212b2>] do_sync_read+0xbf/0xff
> [<ffffffff81121919>] vfs_read+0xa9/0xf0
> [<ffffffff811219aa>] sys_read+0x4a/0x6e
> [<ffffffff81009bc2>] system_call_fastpath+0x16/0x1b
> [<ffffffffffffffff>] 0xffffffffffffffff
> 
> 
>