From: Ingo Molnar <mingo@elte.hu>
To: Andi Kleen <ak@suse.de>
Cc: Martin Bligh <mbligh@mbligh.org>,
linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>
Subject: Re: assert/crash in __rmqueue() when enabling CONFIG_NUMA
Date: Tue, 2 May 2006 22:13:58 +0200 [thread overview]
Message-ID: <20060502201358.GA10831@elte.hu> (raw)
In-Reply-To: <200605022200.12980.ak@suse.de>
* Andi Kleen <ak@suse.de> wrote:
> > > The problem is that nobody regression tests it. So even if you fix it
> > > now it will be likely broken again in a few months.
> >
> > We can add a box to the test.kernel.org harness easily enough, and
> > it will show up with an eerie red glow.
>
> Single box is not enough - there are many possible combinations (e.g.
> Opteron NUMA, IBM NUMA, no NUMA small box, big box with weird mappings
> etc.). Basically you would need a real tester base.
nah. And the fact that i could boot this on a non-NUMA box already
unearthed a weakness in the buddy allocator. (it should have much
clearer asserts about mis-sized zones - it's not the first time we had
them and they are hard to debug) So consider this a debugging feature.
It also found other bugs, so even if nobody but me uses it, it's useful.
ingo
next prev parent reply other threads:[~2006-05-02 20:09 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20060419112130.GA22648@elte.hu>
2006-04-20 9:18 ` assert/crash in __rmqueue() when enabling CONFIG_NUMA Nick Piggin
2006-04-21 11:20 ` Ingo Molnar
2006-04-21 11:45 ` Ingo Molnar
2006-05-01 12:49 ` Ingo Molnar
2006-05-02 6:48 ` Andi Kleen
2006-05-02 7:06 ` Ingo Molnar
2006-05-02 7:05 ` Andi Kleen
2006-05-02 8:27 ` Ingo Molnar
2006-05-02 14:02 ` Martin J. Bligh
2006-05-02 14:25 ` Nick Piggin
2006-05-02 14:25 ` Nick Piggin
2006-05-04 1:32 ` Bob Picco
2006-05-04 1:32 ` Bob Picco
2006-05-04 8:37 ` Ingo Molnar
2006-05-04 8:37 ` Ingo Molnar
2006-05-04 9:14 ` Ingo Molnar
2006-05-04 9:14 ` Ingo Molnar
2006-05-04 9:26 ` Ingo Molnar
2006-05-04 9:26 ` Ingo Molnar
2006-05-04 8:37 ` Andy Whitcroft
2006-05-04 8:37 ` Andy Whitcroft
2006-05-04 15:21 ` Dave Hansen
2006-05-04 15:21 ` Dave Hansen
2006-05-04 15:46 ` Bob Picco
2006-05-04 15:46 ` Bob Picco
2006-05-04 16:07 ` Dave Hansen
2006-05-04 16:07 ` Dave Hansen
2006-05-04 19:25 ` Ingo Molnar
2006-05-04 19:25 ` Ingo Molnar
2006-05-04 19:43 ` Bob Picco
2006-05-04 19:43 ` Bob Picco
2006-05-04 21:50 ` Andy Whitcroft
2006-05-04 21:50 ` Andy Whitcroft
2006-05-05 5:17 ` Ingo Molnar
2006-05-05 5:17 ` Ingo Molnar
2006-05-05 13:55 ` Bob Picco
2006-05-05 13:55 ` Bob Picco
2006-05-05 14:33 ` Dave Hansen
2006-05-05 14:33 ` Dave Hansen
2006-05-05 14:50 ` Bob Picco
2006-05-05 14:50 ` Bob Picco
2006-05-05 14:57 ` Dave Hansen
2006-05-05 14:57 ` Dave Hansen
2006-05-05 15:03 ` Martin J. Bligh
2006-05-05 15:03 ` Martin J. Bligh
2006-05-05 16:22 ` Bob Picco
2006-05-05 16:22 ` Bob Picco
2006-05-05 16:18 ` Bob Picco
2006-05-05 16:18 ` Bob Picco
2006-05-06 8:32 ` Nick Piggin
2006-05-06 8:32 ` Nick Piggin
2006-05-07 13:07 ` Andy Whitcroft
2006-05-07 13:07 ` Andy Whitcroft
2006-05-07 13:18 ` Nick Piggin
2006-05-07 13:18 ` Nick Piggin
2006-05-09 11:05 ` [PATCH 0/3] Zone boundry alignment fixes Andy Whitcroft
2006-05-09 11:05 ` Andy Whitcroft
2006-05-09 11:05 ` [PATCH 1/3] zone init check and report unaligned zone boundries Andy Whitcroft
2006-05-09 11:05 ` Andy Whitcroft
2006-05-09 11:28 ` Nick Piggin
2006-05-09 11:28 ` Nick Piggin
2006-05-09 11:05 ` [PATCH 2/3] x86 align highmem zone boundries with NUMA Andy Whitcroft
2006-05-09 11:05 ` Andy Whitcroft
2006-05-09 11:05 ` [PATCH 3/3] zone allow unaligned zone boundries Andy Whitcroft
2006-05-09 11:05 ` Andy Whitcroft
2006-05-11 7:59 ` [PATCH 0/3] Zone boundry alignment fixes Andrew Morton
2006-05-11 7:59 ` Andrew Morton
2006-05-12 14:19 ` Ingo Molnar
2006-05-12 14:19 ` Ingo Molnar
2006-05-13 1:39 ` Nick Piggin
2006-05-13 1:39 ` Nick Piggin
2006-05-18 14:20 ` [PATCH 0/2] Zone boundary alignment fixes cleanups Andy Whitcroft
2006-05-18 14:20 ` Andy Whitcroft
2006-05-18 14:21 ` [PATCH 1/2] zone init check and report unaligned zone boundaries fix Andy Whitcroft
2006-05-18 14:21 ` Andy Whitcroft
2006-05-18 14:21 ` [PATCH 2/2] zone allow unaligned zone boundaries spelling fix Andy Whitcroft
2006-05-18 14:21 ` Andy Whitcroft
2006-05-18 14:49 ` Andy Whitcroft
2006-05-18 14:49 ` Andy Whitcroft
2006-05-18 15:54 ` [PATCH 0/2] Zone boundary alignment fixes, cleanups v2 Andy Whitcroft
2006-05-18 15:54 ` Andy Whitcroft
2006-05-18 15:55 ` [PATCH 1/2] zone init check and report unaligned zone boundaries fix Andy Whitcroft
2006-05-18 15:55 ` Andy Whitcroft
2006-05-18 15:55 ` [PATCH 2/2] zone allow unaligned zone boundaries spelling fix Andy Whitcroft
2006-05-18 15:55 ` Andy Whitcroft
2006-05-02 15:03 ` assert/crash in __rmqueue() when enabling CONFIG_NUMA Andi Kleen
2006-05-02 15:17 ` Martin J. Bligh
2006-05-02 15:45 ` Andi Kleen
2006-05-02 16:02 ` Martin J. Bligh
2006-05-02 16:05 ` Andi Kleen
2006-05-02 19:47 ` Ingo Molnar
2006-05-02 19:48 ` Ingo Molnar
2006-05-02 19:44 ` Andi Kleen
2006-05-02 19:56 ` Martin Bligh
2006-05-02 20:00 ` Andi Kleen
2006-05-02 20:13 ` Ingo Molnar [this message]
2006-05-02 20:12 ` Andi Kleen
2006-05-02 15:52 ` Ingo Molnar
2006-05-02 19:55 ` [RFC, PATCH] cond_resched() added to close_files() Eric Dumazet
2006-05-03 7:01 ` Ingo Molnar
2006-05-12 9:44 ` Andrew Morton
2006-05-12 10:20 ` Ingo Molnar
2006-05-12 12:24 ` Eric Dumazet
2006-05-14 0:09 ` Lee Revell
2006-04-21 11:51 ` assert/crash in __rmqueue() when enabling CONFIG_NUMA Nick Piggin
2006-04-19 11:23 Ingo Molnar
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