From: Tejun Heo <tj@kernel.org>
To: michal.svoboda@agents.felk.cvut.cz, linux-kernel@vger.kernel.org
Subject: Re: Very slow disk speed after "IRQ: nobody cared"
Date: Fri, 18 Jun 2010 11:06:00 +0200 [thread overview]
Message-ID: <4C1B36F8.9000907@kernel.org> (raw)
In-Reply-To: <20100618050519.GO1635@myhost.felk.cvut.cz>
On 06/18/2010 07:05 AM, Michal Svoboda wrote:
> Tejun Heo wrote:
>> Can you please post full boot log?
>
> Yes, see below.
>
>> Also, can you give a shot at the following git tree?
>
> Is that a kernel branch?
Yeah, it's devel tree for better spurious/lost interrupt workaround.
> There are some obstacles. First, it's a production system, I can't
> experiment with swapping kernels too much. If I had a lead on a
> solution I would need to confirm that it worked/didn't work. Which
> is the second obstacle. The problem seems to appear at random with a
> very low frequency. I don't know how to reliably reproduce it. Do
> you have any advice on these?
Unfortunately, I can't think of an easy way to test and verify it.
Thanks.
--
tejun
prev parent reply other threads:[~2010-06-18 9:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-15 9:28 Very slow disk speed after "IRQ: nobody cared" Michal Svoboda
2010-06-16 11:51 ` Tejun Heo
2010-06-16 11:52 ` Tejun Heo
2010-06-18 5:05 ` Michal Svoboda
2010-06-18 9:06 ` Tejun Heo [this message]
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