From: Michal Hocko <mhocko@kernel.org>
To: Shayan Pooya <shayan@liveve.org>
Cc: cgroups mailinglist <cgroups@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org
Subject: Re: bug in memcg oom-killer results in a hung syscall in another process in the same cgroup
Date: Tue, 12 Jul 2016 09:17:01 +0200 [thread overview]
Message-ID: <20160712071701.GC14586@dhcp22.suse.cz> (raw)
In-Reply-To: <CABAubThHfngHTQW_AEuW71VCvLyD_9b5Z05tSud5bf8JKjuA9Q@mail.gmail.com>
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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prev parent reply other threads:[~2016-07-12 7:17 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-09 23:49 bug in memcg oom-killer results in a hung syscall in another process in the same cgroup Shayan Pooya
2016-07-11 6:41 ` Michal Hocko
2016-07-11 17:40 ` Shayan Pooya
2016-07-11 18:33 ` Shayan Pooya
2016-07-12 7:19 ` Michal Hocko
2016-07-12 15:35 ` Shayan Pooya
2016-07-12 15:52 ` Konstantin Khlebnikov
2016-07-12 16:52 ` Oleg Nesterov
2016-07-12 22:57 ` Shayan Pooya
2016-07-14 13:22 ` Oleg Nesterov
2016-07-14 15:35 ` Shayan Pooya
2016-07-15 16:58 ` Shayan Pooya
2016-07-18 13:53 ` Oleg Nesterov
2016-07-13 8:08 ` Michal Hocko
2016-07-12 7:17 ` Michal Hocko [this message]
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