From: devzero-S0/GAf8tV78@public.gmane.org
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
Andi Kleen <andi-Vw/NltI1exuRpAAqCnN02g@public.gmane.org>,
kernel-testers-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: suse slab testing module "crasher"
Date: Sun, 15 Jun 2008 20:31:49 +0200 [thread overview]
Message-ID: <317948575@web.de> (raw)
>Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org> writes:
>>
>> Doing the same thing on 2.6.26-rc5-mm3, msgctl08 also runs to
>> completion, in 20.9 seconds. So
>>
>> - it got slower
>
>That is because it scales itself to the number of available msg queues.
>So with Nadia's patch there are more and it runs slower.
>
>In fact it seems to start one process per message queue, so perhaps it's
>just running out of processes or something. Ok it should not segfault.
>
>BTW a great way to debug slab corruptions with LTP faster is to run with
>a slab thrasher stress module like http://firstfloor.org/~andi/crasher-26.diff
>
>-Andi
any reason why only suse has this, but not mainline ?
i came across that module in suse kernel just some days ago and asked novell ( https://bugzilla.novell.com/show_bug.cgi?id=396132 ) , but they don`t have any objections.
chris mason didn`t reply on direct request....
so, if it`s useful, who is reponsible for pushing it upstream ?
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WARNING: multiple messages have this Message-ID (diff)
From: devzero@web.de
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <andi@firstfloor.org>,
kernel-testers@vger.kernel.org
Subject: suse slab testing module "crasher"
Date: Sun, 15 Jun 2008 20:31:49 +0200 [thread overview]
Message-ID: <317948575@web.de> (raw)
>Andrew Morton <akpm@linux-foundation.org> writes:
>>
>> Doing the same thing on 2.6.26-rc5-mm3, msgctl08 also runs to
>> completion, in 20.9 seconds. So
>>
>> - it got slower
>
>That is because it scales itself to the number of available msg queues.
>So with Nadia's patch there are more and it runs slower.
>
>In fact it seems to start one process per message queue, so perhaps it's
>just running out of processes or something. Ok it should not segfault.
>
>BTW a great way to debug slab corruptions with LTP faster is to run with
>a slab thrasher stress module like http://firstfloor.org/~andi/crasher-26.diff
>
>-Andi
any reason why only suse has this, but not mainline ?
i came across that module in suse kernel just some days ago and asked novell ( https://bugzilla.novell.com/show_bug.cgi?id=396132 ) , but they don`t have any objections.
chris mason didn`t reply on direct request....
so, if it`s useful, who is reponsible for pushing it upstream ?
______________________________________________________________
Jeden Monat 1 hochkarätiger maxdome-Blockbuster GRATIS!
Exklusiv für alle WEB.DE Nutzer. http://www.blockbuster.web.de
next reply other threads:[~2008-06-15 18:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-15 18:31 devzero-S0/GAf8tV78 [this message]
2008-06-15 18:31 ` suse slab testing module "crasher" devzero
[not found] ` <317948575-S0/GAf8tV78@public.gmane.org>
2008-06-15 18:37 ` Andi Kleen
2008-06-15 18:37 ` Andi Kleen
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