Messages in this thread |  | | | Date | Thu, 9 Sep 2010 15:39:09 +0530 | | From | Balbir Singh <> | | Subject | Re: cgroup: rmdir() does not complete |
| |
* Mark Hills <mark@pogo.org.uk> [2010-09-09 11:01:45]:
> On Thu, 2 Sep 2010, KAMEZAWA Hiroyuki wrote: > > [...] > > But hmm...it's curious who holds mutex and what happens. > > I have a system showing the failure case (but still do not have a way to > reliably repeat it) > > Here are the two processes: > > 23586 pts/0 RL+ 5059:18 /net/homes/mhills/tmp/soaked-cgroup > 23685 pts/6 DL+ 0:00 /net/homes/mhills/tmp/soaked-cgroup > > 23586 spends almost all of its time in 'RL+' status, occasionally it is > seen in 'DL+' status. > > From my analysis before, both are blocked on rmdir(), but one is spinning, > holding the lock on the /cgroup, and the other is waiting for the lock. If > I strace 23586 then the rmdir() fails with EINTR. >
Any chance you can compile with debug cgroup subsystem and get information from there?
-- Three Cheers, Balbir
|  |