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SubjectRe: Hard lockups under high CPU load with DynTicks - RCU Related?
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



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