RE: [Bug 172981] New: [bisected] SLAB: extreme load averages and over 2000 kworker threads

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On 2016.10.05 23:35 Joonsoo Kim wrote:
> On Wed, Oct 05, 2016 at 10:04:27PM -0700, Doug Smythies wrote:
>> On 2016.09.30 12:59 Vladimir Davydov wrote:
>> 
>>> Yeah, you're right. We'd better do something about this
>>> synchronize_sched(). I think moving it out of the slab_mutex and calling
>>> it once for all caches in memcg_deactivate_kmem_caches() would resolve
>>> the issue. I'll post the patches tomorrow.
>> 
>> Would someone please be kind enough to send me the patch set?
>> 
>> I didn't get them, and would like to test them.
>> I have searched and searched and did manage to find:
>> "[PATCH 2/2] slub: move synchronize_sched out of slab_mutex on shrink"
>> And a thread about a patch 1 of 2:
>> "Re: [PATCH 1/2] mm: memcontrol: use special workqueue for creating per-memcg caches"
>> Where I see me as "reported by", but I guess "reported by" people don't get the e-mails.
>> I haven't found PATCH 0/2, nor do I know if what I did find is current.
>
> I think that what you find is correct one. It has no cover-letter so
> there is no [PATCH 0/2]. Anyway, to clarify, I add links to these
> patches.
>
> https://patchwork.kernel.org/patch/9361853
> https://patchwork.kernel.org/patch/9359271
>
> It would be very helpful if you test these patches.

Yes, as best as I am able to test, the 2 patch set
solves both this SLAB and the other SLUB bug reports.


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