From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Mike Lothian <mike@fireburn.co.uk>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Hard lockups under high CPU load with DynTicks - RCU Related?
Date: Thu, 2 Oct 2014 13:03:07 -0700 [thread overview]
Message-ID: <20141002200307.GW5015@linux.vnet.ibm.com> (raw)
In-Reply-To: <CAHbf0-HyGUPcc14HwBjmQnQV9Mauxur3=5O_MqyGmiV9NK4Pnw@mail.gmail.com>
On Tue, Sep 23, 2014 at 08:32:02AM +0100, Mike Lothian wrote:
> Hi
>
> I've raised https://bugzilla.kernel.org/show_bug.cgi?id=84131 and
> attempted to bisect
>
> The bug I'm stumbling on happens on both and Intel Sandybridge and AMD
> Kabini system - it manifests itself as a hard lockup when the system
> is under high load
>
> If I switch off DynTicks the problem doesn't happen - I bisected by
> compiling Chromium marking each one good or bad if the system starts
> to lockup
>
> I'm not sure if I've filed the bug under the right Product / Component
>
> Please let me know if you'd like any more diagnostics
The commit that your bisection located is a merge commit. Could you
please try each of the branches that were merged? That might allow
you to pinpoint the actual commit.
Thanx, Paul
prev parent reply other threads:[~2014-10-02 20:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-23 7:32 Hard lockups under high CPU load with DynTicks - RCU Related? Mike Lothian
2014-10-02 20:03 ` Paul E. McKenney [this message]
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