linux-kernel - Re: sched/fair: Hard lockup from idle_balance()/task_numa

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Message-ID: <CA+55aFwksDr6HG87yafoexDezc__ZXZwAqVi-Zp_SXmZLhTA6Q@mail.gmail.com>
Date:   Fri, 3 Nov 2017 08:03:09 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Ed Swierk <eswierk@...portsystems.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: sched/fair: Hard lockup from idle_balance()/task_numa_migrate() race

I suspect that you'd get more responses if it was an upstream kernel
(and preferably newer), or even a distro one.

If you run the grsec patches, you need to go to grsec to get support.
We don't even know what they are doing, since they're hiding their
patches and not breaking them out.

                  Linus

On Thu, Nov 2, 2017 at 5:51 PM, Ed Swierk <eswierk@...portsystems.com> wrote:
> Ping?
>
> On Wed, Oct 25, 2017 at 9:35 PM, Ed Swierk <eswierk@...portsystems.com> wrote:
>>
>> Ping?
>>
>> On Mon, Oct 16, 2017 at 4:11 PM, Ed Swierk <eswierk@...portsystems.com> wrote:
>> >
>> > Ping for Peter, Ingo and other sched maintainers:
>> >
>> > I'd appreciate any feedback on this hard lockup issue, which occurred
>> > on a system running kernel 4.4.52-grsec.