From: Stefan Biereigel <security@biereigel-wb.de>
To: Shaohua Li <shaohua.li@intel.com>
Cc: linux-kernel@vger.kernel.org,
Vasily Khoruzhick <anarsoul@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Sitsofe Wheeler <sitsofe@yahoo.com>,
Venkatesh Pallipadi <venki@google.com>,
intel-gfx@lists.freedesktop.org, Len Brown <lenb@kernel.org>,
Jesse Barnes <jbarnes@virtuousgeek.org>
Subject: Re: Interrupt latency on some 945GM platforms
Date: Mon, 27 Sep 2010 07:45:58 +0200 [thread overview]
Message-ID: <4CA02F96.2000508@biereigel-wb.de> (raw)
In-Reply-To: <AANLkTinZ-A-D=yEsN00dGB=fpTgV72BgrEra9UpkmVHX@mail.gmail.com>
Hello Everyone,
>> just to add on to reports of this problem, there was a Thread here in LKML
>> some months ago targeting the same problem (but not really attacking it at
>> the Chipset driver). As I have one of those Laptops with a 945GM-Chipset and
>> am stuck with the same Problem (disabled tickless now as a workaround and
>> set ticks to 1000) I could maybe do some testing of patches.
>> So what I can summarize is what the others did before: Disabling CPU1 helps,
>> adding nohz=off helps, changing the Clocksource afterwards helps, binding
>> the Interrupt does NOT help.
>> So here's the Link to the old Discussion with follow-ups, maybe you can get
>> some furter information from there.
>> http://linux.derkeiler.com/Mailing-Lists/Kernel/2010-05/msg03696.html
>> We targeted the BIOS itself as everyone in this thread happened to own an
>> Phoenix BIOS with some special version string.
>> best, Stefan
>>
> does disable msi help with 'pci=nomsi'?
>
No, here it doesn't.
next prev parent reply other threads:[~2010-09-27 5:46 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <201009132336.17310.anarsoul@gmail.com>
[not found] ` <20100913134441.762001f7@jbarnes-desktop>
[not found] ` <201009140010.14783.anarsoul@gmail.com>
2010-09-13 21:19 ` Interrupt latency on some 945GM platforms Jesse Barnes
2010-09-13 21:41 ` Vasily Khoruzhick
2010-09-13 21:46 ` Jesse Barnes
2010-09-13 21:52 ` Vasily Khoruzhick
2010-09-13 21:59 ` Jesse Barnes
2010-09-13 22:03 ` Vasily Khoruzhick
2010-09-14 0:55 ` Venkatesh Pallipadi
2010-09-14 8:09 ` Vasily Khoruzhick
2010-09-14 9:52 ` Thomas Gleixner
2010-09-14 12:29 ` Vasily Khoruzhick
2010-09-14 22:41 ` Sitsofe Wheeler
2010-09-15 7:07 ` Vasily Khoruzhick
2010-09-16 15:03 ` Vasily Khoruzhick
2010-09-16 18:07 ` Thomas Gleixner
2010-09-16 18:30 ` Vasily Khoruzhick
2010-09-16 18:42 ` Vasily Khoruzhick
2010-09-16 18:50 ` Thomas Gleixner
2010-09-16 20:06 ` Vasily Khoruzhick
2010-09-24 19:39 ` Jesse Barnes
2010-09-24 19:48 ` Vasily Khoruzhick
2010-09-24 19:51 ` Jesse Barnes
2010-09-26 10:53 ` Stefan Biereigel
2010-09-27 0:46 ` Shaohua Li
2010-09-27 5:45 ` Stefan Biereigel [this message]
2010-09-27 11:41 ` Vasily Khoruzhick
2010-09-27 21:18 ` Vasily Khoruzhick
2010-09-25 10:25 ` Paolo Ornati
2010-09-17 9:02 ` [Intel-gfx] " Simon Farnsworth
2010-09-17 16:30 ` Jesse Barnes
2010-09-17 12:50 ` Vasily Khoruzhick
2010-09-21 18:26 ` Paolo Ornati
2010-09-21 22:56 ` Jesse Barnes
2010-09-22 5:57 ` Vasily Khoruzhick
2010-09-23 18:21 ` Paolo Ornati
2010-09-25 10:28 ` Paolo Ornati
2010-10-16 15:54 ` [Intel-gfx] Interrupt latency on some 945GM platforms -- and TCP/IP silent data corruption? Paolo Ornati
2010-09-24 18:41 ` Interrupt latency on some 945GM platforms Jesse Barnes
2010-09-14 9:55 ` Andi Kleen
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