Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit

From	Bob Peterson <rpeterso@redhat.com>
Newsgroups	linux.kernel
Subject	Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit
Date	2016-10-26 21:20 +0200
Message-ID	<swBTX-83B-1@gated-at.bofh.it> (permalink)
References	(2 earlier) <swzp8-6mF-21@gated-at.bofh.it> <swA1P-6PG-5@gated-at.bofh.it> <swAEx-73J-9@gated-at.bofh.it> <swAOe-7ng-23@gated-at.bofh.it> <swAXU-7td-17@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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----- Original Message -----
| On Wed, Oct 26, 2016 at 11:04 AM, Bob Peterson <rpeterso@redhat.com> wrote:
| >
| > I can test it for you, if you give me about an hour.

Sorry. I guess I underestimated the time it takes to build a kernel
on my test box. It will take a little longer, but it's compiling now.
 
| I can definitely wait an hour, it would be lovely to see more testing.
| Especially if you have a NUMA machine and an interesting workload.

I'll see what I can cook up.
 
| And if you actually have that NUMA machine and a load that shows the
| page_waietutu effects, it would also be lovely if you can then
| _additionally_ test the patch that PeterZ wrote a few weeks ago, it
| was on the mm list about a month ago:
| 
|   Date: Thu, 29 Sep 2016 15:08:27 +0200
|   From: Peter Zijlstra <peterz@infradead.org>
|   Subject: Re: page_waitqueue() considered harmful
|   Message-ID: <20160929130827.GX5016@twins.programming.kicks-ass.net>
| 
| and if you don't find it I can forward it to you (Peter had a few
| versions, that latest one is the one that looked best).

I'll see what I can do, but first I'll check basic functionality
and report back.
 
Bob Peterson

Thread

CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Andreas Gruenbacher <agruenba@redhat.com> - 2016-10-26 15:00 +0200
  Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Andy Lutomirski <luto@amacapital.net> - 2016-10-26 18:00 +0200
    Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-26 18:40 +0200
      Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-26 19:20 +0200
        Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-26 20:00 +0200
          Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Bob Peterson <rpeterso@redhat.com> - 2016-10-26 20:10 +0200
            Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-26 20:20 +0200
              Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Bob Peterson <rpeterso@redhat.com> - 2016-10-26 21:20 +0200
              Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Bob Peterson <rpeterso@redhat.com> - 2016-10-26 23:10 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-26 23:40 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Borislav Petkov <bp@suse.de> - 2016-10-27 00:50 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Borislav Petkov <bp@alien8.de> - 2016-10-27 01:20 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Borislav Petkov <bp@alien8.de> - 2016-10-27 16:00 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Bob Peterson <rpeterso@redhat.com> - 2016-10-27 21:00 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Borislav Petkov <bp@alien8.de> - 2016-10-27 21:30 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Bob Peterson <rpeterso@redhat.com> - 2016-10-27 23:10 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Borislav Petkov <bp@alien8.de> - 2016-10-27 23:20 +0200
                [tip:x86/urgent] x86/microcode/AMD: Fix more fallout from  CONFIG_RANDOMIZE_MEMORY=y tip-bot for Borislav Petkov <tipbot@zytor.com> - 2016-10-28 10:50 +0200
        Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Mel Gorman <mgorman@techsingularity.net> - 2016-10-26 22:40 +0200
          Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-26 23:30 +0200
            Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Mel Gorman <mgorman@techsingularity.net> - 2016-10-27 00:10 +0200
              Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-27 00:20 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Mel Gorman <mgorman@techsingularity.net> - 2016-10-27 01:10 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Mel Gorman <mgorman@techsingularity.net> - 2016-10-27 11:20 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Mel Gorman <mgorman@techsingularity.net> - 2016-10-27 16:50 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Peter Zijlstra <peterz@infradead.org> - 2016-10-27 17:20 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Nicholas Piggin <npiggin@gmail.com> - 2016-10-27 16:10 +0200
                Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit Peter Zijlstra <peterz@infradead.org> - 2016-10-27 16:50 +0200

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