linux-kernel - Re: [RFC 00/60] Coscheduling for Linux

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Message-ID: <20180913181627.GA29148@breakout>
Date:   Thu, 13 Sep 2018 11:16:27 -0700
From:   Nishanth Aravamudan <naravamudan@...italocean.com>
To:     Jan H. Schönherr <jschoenh@...zon.de>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC 00/60] Coscheduling for Linux

On 13.09.2018 [13:31:36 +0200], Jan H. Schönherr wrote:
> On 09/13/2018 01:15 AM, Nishanth Aravamudan wrote:
> > [...] if I just try to set machine's
> > cpu.scheduled to 1, with no other changes (not even changing any child
> > cgroup's cpu.scheduled yet), I get the following trace:
> > 
> > [16052.164259] ------------[ cut here ]------------
> > [16052.168973] rq->clock_update_flags < RQCF_ACT_SKIP
> > [16052.168991] WARNING: CPU: 59 PID: 59533 at kernel/sched/sched.h:1303 assert_clock_updated.isra.82.part.83+0x15/0x18
> [snip]
> 
> This goes away with the change below (which fixes patch 58/60).

Yep, I can confirm this one as well, is now fixed.

-Nish