Re: [PATCH] mm,page_alloc: Serialize warn_alloc() if schedulable.

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On Fri, Jun 2, 2017 at 12:18 AM, Michal Hocko <mhocko@xxxxxxxx> wrote:
> The changelog doesn't really explain what is going on and only
> speculates that the excessive warn_alloc is the cause. The kernel is
> 4.9.23.el7.twitter.x86_64 which I suspect contains a lot of stuff on top
> of 4.9. So I would really _like_ to see whether this is reproducible
> with the upstream kernel. Especially when this is a LTP test.

Just FYI: our kernel 4.9.23.el7.twitter.x86_64 is almost same with
the upstream 4.9.23 release, with just _few_ non-mm patches
backported.

We do have test machines to test non-stable kernels but it
is slightly harder to build an upstream kernel on them, I mean
not as convenient as a kernel rpm...

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