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From: Jens Axboe <jaxboe@fusionio.com>
To: Bart Van Assche <bvanassche@acm.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	"Rafael J. Wysocki" <rjw@sisk.pl>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Kernel Testers List <kernel-testers@vger.kernel.org>,
	Maciej Rutecki <maciej.rutecki@gmail.com>,
	Florian Mickler <florian@mickler.org>, Neil Brown <neilb@suse.de>
Subject: Re: [Bug #32982] Kernel locks up a few minutes after boot
Date: Mon, 18 Apr 2011 20:28:54 +0200	[thread overview]
Message-ID: <4DAC82E6.3020809@fusionio.com> (raw)
In-Reply-To: <BANLkTinCWWYqnksxevho9TN3u6ZC_Rjzwg@mail.gmail.com>

On 2011-04-18 20:21, Bart Van Assche wrote:
> On Mon, Apr 18, 2011 at 1:44 PM, Jens Axboe <jaxboe@fusionio.com> wrote:
>> Bart, can you try and pull:
>>
>> git://git.kernel.dk/linux-2.6-block.git for-linus
>>
>> into Linus' tree and see if that works? This has, among other things,
>> Neils fixes for MD.
> 
> md seems to work stable with the resulting tree, but it looks there is

OK, that's the most important bit.

> a performance regression in the block layer not related to the md
> issue. If I run a small block IOPS test on a block device created by
> ib_srp (NOOP scheduler) I see about 11% less IOPS than with 2.6.38.3
> (155.000 IOPS with 2.6.38.3 and 140.000 IOPS with 2.6.39-rc3+).

That's not good. What's the test case?

-- 
Jens Axboe


  reply	other threads:[~2011-04-18 18:28 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-17 12:52 2.6.39-rc3-git7: Reported regressions from 2.6.38 Rafael J. Wysocki
2011-04-17 12:52 ` [Bug #32262] 2.6.38-git15+ IDE hangs boot Rafael J. Wysocki
2011-04-17 13:16   ` Pete Clements
2011-04-17 13:28     ` Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #32982] Kernel locks up a few minutes after boot Rafael J. Wysocki
2011-04-17 17:03   ` Linus Torvalds
2011-04-17 18:37     ` Bart Van Assche
2011-04-17 21:07       ` NeilBrown
2011-04-17 22:20         ` NeilBrown
2011-04-18 11:44       ` Jens Axboe
2011-04-18 18:21         ` Bart Van Assche
2011-04-18 18:28           ` Jens Axboe [this message]
2011-04-18 18:32             ` Bart Van Assche
2011-04-18 18:38               ` Jens Axboe
2011-04-19  9:09               ` Jens Axboe
2011-04-19 11:16                 ` Jens Axboe
2011-04-19 16:13                   ` Bart Van Assche
2011-04-19 16:32                     ` Linus Torvalds
2011-04-19 17:43                       ` Jens Axboe
2011-04-19 17:43                     ` Jens Axboe
2011-04-19 16:48                   ` Christoph Hellwig
2011-04-19 17:06                     ` Jens Axboe
2011-04-19  3:32           ` David Dillow
2011-04-19 16:39             ` Bart Van Assche
2011-04-21  0:38               ` Dave Dillow
2011-04-17 12:57 ` [Bug #33092] [regression] 2.6.39-rc1 - Beagleboard usbnet broken Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #32892] 2.6.39-rc1 data corruption with rtorrent Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #32902] 2.6.39-rc1 doesn't boot on thinkpad t61p x86_64 Rafael J. Wysocki
2011-04-18 15:34   ` Alex Romosan
2011-04-18 21:22     ` Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #33102] File's copied from client->linux server only copy 1st 64K data;rest is lost Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #33242] Lockdep splat in autofs with 2.6.39-rc2 Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #33142] 2.6.39-rc2 regression: X201s fails to resume b77dcf8460ae57d4eb9fd3633eb4f97b8fb20716 Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #33272] drm related hard-hang Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #33252] [regression 2.6.39-rc2][bisected] "perf, x86: P4 PMU - Read proper MSR register to catch" and NMIs Rafael J. Wysocki
2011-04-17 13:05   ` Cyrill Gorcunov
2011-04-17 13:31     ` Rafael J. Wysocki
2011-04-17 12:57 ` [Bug #33342] [2.6.39-rc2][bisected] Constant DISK_MEDIA_CHANGE_EVENTS from CDROM drive Rafael J. Wysocki
  -- strict thread matches above, loose matches on Subject: below --
2011-04-30 19:42 2.6.39-rc5-git4: Reported regressions from 2.6.38 Rafael J. Wysocki
2011-04-30 19:42 ` [Bug #32982] Kernel locks up a few minutes after boot Rafael J. Wysocki
2011-04-30 19:51   ` Linus Torvalds
     [not found]     ` <BANLkTik_aeVn9Jf_cWnoY0fNUm+tjMnixA@mail.gmail.com>
2011-05-01 17:01       ` Linus Torvalds

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