From: Manfred Spraul <manfred@colorfullife.com>
To: Luca Tettamanti <kronos.it@gmail.com>
Cc: Christoph Lameter <cl@linux-foundation.org>,
linux-kernel@vger.kernel.org, Julia Lawall <julia@diku.dk>,
Andrew Morton <akpm@linux-foundation.org>,
maciej.rutecki@gmail.com
Subject: Re: 2.6.35-rc3 deadlocks on semaphore operations
Date: Fri, 25 Jun 2010 23:09:19 +0200 [thread overview]
Message-ID: <4C251AFF.70803@colorfullife.com> (raw)
In-Reply-To: <AANLkTinw8qzAkHTNB05PqfWMQmuya1Dq6AZCgz2nWx6_@mail.gmail.com>
On 06/24/2010 09:22 PM, Luca Tettamanti wrote:
> Argh, "seems" was indeed appropriate. Manfred your patch does
> alleviate the problem but something is still wrong. I noticed (I'm
> developing an ajax heavy web app) that sometimes an apache worker
> hangs; I can reproduce the problem with ab (apache benchmark) and a
> high concurrency level (I'm testing with 100 and 10k requests, and I
> get only 2-5 dropped requests). This does not happen with 2.4.34.
> Any idea on how I can debug this further?
>
>
Are there still hung httpd processes?
--
Manfred
next prev parent reply other threads:[~2010-06-25 21:08 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-18 14:49 2.6.35-rc3 deadlocks on semaphore operations Christoph Lameter
2010-06-18 14:56 ` Christoph Lameter
2010-06-19 14:43 ` Manfred Spraul
2010-06-21 14:31 ` Christoph Lameter
2010-06-21 16:52 ` Manfred Spraul
2010-06-21 17:13 ` Christoph Lameter
2010-06-18 15:34 ` Julia Lawall
2010-06-19 11:06 ` Manfred Spraul
2010-06-21 17:05 ` Christoph Lameter
2010-06-21 17:16 ` Christoph Lameter
2010-06-21 18:05 ` 2.6.35-rc3 deadlocks on wakeup(?) (was on semaphore operations) Christoph Lameter
2010-06-20 6:55 ` 2.6.35-rc3 deadlocks on semaphore operations Maciej Rutecki
2010-06-21 20:01 ` Luca Tettamanti
2010-06-23 16:29 ` Manfred Spraul
2010-06-23 19:14 ` Luca Tettamanti
2010-06-24 19:22 ` Luca Tettamanti
2010-06-25 21:09 ` Manfred Spraul [this message]
2010-06-26 12:52 ` Luca Tettamanti
2010-06-26 15:47 ` 2.6.35-rc3: System unresponsive under load Manfred Spraul
2010-06-26 15:49 ` Manfred Spraul
2010-06-26 16:47 ` Luca Tettamanti
2010-06-30 19:07 ` Manfred Spraul
2010-07-06 16:01 ` Luca Tettamanti
2010-07-07 19:34 ` Luca Tettamanti
2010-07-02 15:53 ` 2.6.35-rc3 deadlocks on semaphore operations Manfred Spraul
2010-06-23 20:27 ` Christoph Lameter
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