From: Ingo Molnar <mingo@elte.hu>
To: Pekka Enberg <penberg@kernel.org>
Cc: torvalds@linux-foundation.org, cl@linux-foundation.org,
akpm@linux-foundation.org, tj@kernel.org, npiggin@kernel.dk,
rientjes@google.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [GIT PULL] SLAB changes for v2.6.39-rc1
Date: Thu, 24 Mar 2011 17:03:10 +0100 [thread overview]
Message-ID: <20110324160310.GA27127@elte.hu> (raw)
In-Reply-To: <20110324142146.GA11682@elte.hu>
* Ingo Molnar <mingo@elte.hu> wrote:
> FYI, some sort of boot crash has snuck upstream in the last 24 hours:
>
> BUG: unable to handle kernel paging request at ffff87ffc147e020
> IP: [<ffffffff811aa762>] this_cpu_cmpxchg16b_emu+0x2/0x1c
>
> [<ffffffff810d9cbc>] ? kmem_cache_alloc+0x4c/0x110
> [<ffffffff8151cf06>] kmem_cache_init+0xeb/0x2b0
> [<ffffffff81504a06>] start_kernel+0x1de/0x49b
> [<ffffffff8150432b>] x86_64_start_reservations+0x132/0x136
> [<ffffffff81504140>] ? early_idt_handlers+0x140/0x140
>
> And the SLAB changes are one of the suspects. It triggers in about 5% of all
> randconfigs. I'm bisecting it currently.
Caused by:
| 8a5ec0ba42c4919e2d8f4c3138cc8b987fdb0b79 is the first bad commit
| commit 8a5ec0ba42c4919e2d8f4c3138cc8b987fdb0b79
| Author: Christoph Lameter <cl@linux.com>
| Date: Fri Feb 25 11:38:54 2011 -0600
|
| Lockless (and preemptless) fastpaths for slub
I'll try to revert these:
2fd66c517d5e: slub: Add missing irq restore for the OOM path
a24c5a0ea902: slub: Dont define useless label in the !CONFIG_CMPXCHG_LOCAL case
8a5ec0ba42c4: Lockless (and preemptless) fastpaths for slub
Thanks,
Ingo
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2011-03-24 16:03 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-22 14:40 [GIT PULL] SLAB changes for v2.6.39-rc1 Pekka Enberg
2011-03-24 14:21 ` Ingo Molnar
2011-03-24 14:41 ` Christoph Lameter
2011-03-24 16:50 ` Pekka Enberg
2011-03-24 17:26 ` Ingo Molnar
2011-03-24 17:43 ` Christoph Lameter
2011-03-24 17:56 ` Pekka Enberg
2011-03-24 18:01 ` Christoph Lameter
2011-03-24 18:06 ` Pekka Enberg
2011-03-24 18:15 ` Christoph Lameter
2011-03-24 18:20 ` Eric Dumazet
2011-03-24 18:47 ` Christoph Lameter
2011-03-24 18:51 ` Eric Dumazet
2011-03-24 19:02 ` Christoph Lameter
2011-03-24 19:04 ` Pekka Enberg
2011-03-24 18:55 ` Pekka Enberg
2011-03-24 18:59 ` Ingo Molnar
2011-03-24 19:03 ` Pekka Enberg
2011-03-24 19:05 ` Christoph Lameter
2011-03-24 19:14 ` Pekka Enberg
2011-03-24 19:36 ` Ingo Molnar
2011-03-24 19:41 ` Pekka Enberg
2011-03-24 19:51 ` Christoph Lameter
2011-03-24 20:01 ` Ingo Molnar
2011-03-24 20:08 ` Eric Dumazet
2011-03-24 20:43 ` Christoph Lameter
2011-03-25 15:13 ` Tejun Heo
2011-03-25 15:45 ` Christoph Lameter
2011-03-27 9:59 ` Avi Kivity
2011-03-24 19:02 ` Christoph Lameter
2011-03-27 9:57 ` Avi Kivity
2011-03-24 18:13 ` Pekka Enberg
2011-03-24 19:27 ` Ingo Molnar
2011-03-24 19:29 ` Pekka Enberg
2011-03-24 18:52 ` [boot crash #2] " Ingo Molnar
2011-03-24 19:10 ` Thomas Gleixner
2011-03-24 19:22 ` Ingo Molnar
2011-03-24 19:27 ` Pekka Enberg
2011-03-25 20:00 ` Ingo Molnar
2011-03-26 11:27 ` Ingo Molnar
2011-03-26 11:47 ` [PATCH] slub: Disable the lockless allocator Ingo Molnar
2011-03-26 17:45 ` Eric Dumazet
2011-03-26 19:18 ` Christoph Lameter
2011-03-26 19:30 ` Christoph Lameter
2011-03-26 19:49 ` Christoph Lameter
2011-03-26 19:57 ` Ingo Molnar
2011-03-26 21:36 ` Christoph Lameter
2011-03-26 20:00 ` Ingo Molnar
2011-03-26 22:18 ` Linus Torvalds
2011-03-27 1:29 ` Christoph Lameter
2011-03-27 1:57 ` Christoph Lameter
2011-03-27 7:52 ` Eric Dumazet
2011-03-28 10:32 ` [PATCH] percpu: avoid extra NOP in percpu_cmpxchg16b_double Eric Dumazet
2011-03-28 13:46 ` Christoph Lameter
2011-03-28 16:06 ` Tejun Heo
2011-03-28 6:12 ` [PATCH] slub: Disable the lockless allocator Pekka Enberg
2011-03-28 6:19 ` Ingo Molnar
2011-03-28 6:25 ` Pekka Enberg
2011-03-28 6:36 ` Ingo Molnar
2011-03-28 7:26 ` Eric Dumazet
2011-03-28 13:44 ` Christoph Lameter
2011-03-28 7:35 ` Tejun Heo
2011-03-26 19:30 ` Linus Torvalds
2011-03-26 17:58 ` [boot crash #2] Re: [GIT PULL] SLAB changes for v2.6.39-rc1 Linus Torvalds
2011-03-24 19:16 ` Call Trace:Re: " Thomas Gleixner
2011-03-24 19:23 ` Ingo Molnar
2011-03-24 20:04 ` Gustavo F. Padovan
2011-03-24 16:03 ` Ingo Molnar [this message]
2011-03-24 16:14 ` Ingo Molnar
2011-03-24 17:07 ` Pekka Enberg
2011-03-24 17:21 ` Ingo Molnar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20110324160310.GA27127@elte.hu \
--to=mingo@elte.hu \
--cc=akpm@linux-foundation.org \
--cc=cl@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=npiggin@kernel.dk \
--cc=penberg@kernel.org \
--cc=rientjes@google.com \
--cc=tj@kernel.org \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).