On Thu, Jun 21, 2018 at 01:50:56PM -0700, Jim Mattson wrote:
> I'd like to nominate commit f605cfca8c39 ("perf/x86/intel: Fix large
> period handling on Broadwell CPUs") for backport to the affected
> stable Linux releases. (The bug was introduced in 4.1.)
>
> Because of this bug, the NMI watchdog timer may fire spuriously on
> Broadwell systems, resulting in a hard lockup panic when there is, in
> fact, no lockup.
I just checked, and it looks like this is already included in the
following kernel releases:
4.9.104 4.14.45 4.16.13 4.17
and it does not apply to the 4.4.y tree at all.
If it needs to go into 4.4, can you please send a working backport?
thanks,
greg k-h
