linux-kernel - Re: [Bug #32982] Kernel locks up a few minutes after boot

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Message-ID: <BANLkTikzRE7sA8_NNgVUpOqR_zGtw+YUvQ@mail.gmail.com>
Date:	Tue, 19 Apr 2011 09:32:36 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Bart Van Assche <bvanassche@....org>
Cc:	Jens Axboe <jaxboe@...ionio.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Maciej Rutecki <maciej.rutecki@...il.com>,
	Florian Mickler <florian@...kler.org>,
	Neil Brown <neilb@...e.de>, David Dillow <dave@...dillows.org>
Subject: Re: [Bug #32982] Kernel locks up a few minutes after boot

On Tue, Apr 19, 2011 at 9:13 AM, Bart Van Assche <bvanassche@....org> wrote:
>
> The same test with an initiator running 2.6.39-rc4 +
> git://git.kernel.dk/linux-2.6-block.git for-linus + the above patch
> yields about 155.000 IOPS on my test setup, or the same performance as
> with 2.6.38.3. I'm running the above patch through an I/O stress test
> now.

Goodie. So not only does that patch get back the 11%, it removes the
crazy QUEUE_FLAG_REENTER flag that was broken to begin with. AND it
removes a number of complicated lines.

Halleluja.

                        Linus
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