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SubjectRe: bug in memcg oom-killer results in a hung syscall in another process in the same cgroup
On Mon 11-07-16 10:40:55, Shayan Pooya wrote:
> >
> > Could you post the stack trace of the hung oom victim? Also could you
> > post the full kernel log?
>
> Here is the stack of the process that lives (it is *not* the
> oom-victim) in a run with 100 processes and *without* strace:
>
> # cat /proc/7688/stack
> [<ffffffff81100292>] futex_wait_queue_me+0xc2/0x120
> [<ffffffff811005a6>] futex_wait+0x116/0x280
> [<ffffffff81102d90>] do_futex+0x120/0x540
> [<ffffffff81103231>] SyS_futex+0x81/0x180
> [<ffffffff81825bf2>] entry_SYSCALL_64_fastpath+0x16/0x71
> [<ffffffffffffffff>] 0xffffffffffffffff

I am not sure I understand. Is this the hung task?
--
Michal Hocko
SUSE Labs

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