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Finding what is stuck...

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From: J.A. <jamagallon@...>
To: Linux-Kernel <linux-kernel@...>
Subject: Finding what is stuck...
Date: Monday, September 1, 2008 - 8:04 pm

Hi all...


I'm running 2.6.27-rc5-git2 on an Aspire One.

The system is in general pretty responsive, but sometimes it just gets

totally stuck. Even the mouse stops. 


It looks related to disk (SSD) access, but I'm not totally sure.

Is there any way to find what is getting stuck ? I know that SSDs can

be slow on write, I don't mind if the system is faster or slower

(it's small :))), but if the speed is constant. That occasional

pauses are strange, like if SSD flushing gets stuck on BKL

(I know, no idea about what I talk...).


I'm using ext3 fs, noop iosched. But as I say, I'm not sure that the

disk writes are the culprit.


Any idea about how to find this ?


TIA


--

J.A. Magallon                       \                     Software is like sex:

                                     \               It's better when it's free

Mandriva Linux release 2008.1 (Cooker) for i586

Linux kernel 2.6.23-jam01,  gcc version 4.2.2 20070909

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Messages in current thread:
Finding what is stuck..., J.A. , (Mon Sep 1, 8:04 pm)
Re: Finding what is stuck..., Jan Knutar, (Mon Sep 1, 9:53 pm)
Re: Finding what is stuck..., Arjan van de Ven, (Mon Sep 1, 8:08 pm)
Re: Finding what is stuck..., J.A. , (Wed Sep 3, 7:00 pm)
Re: Finding what is stuck..., Arjan van de Ven, (Wed Sep 3, 7:50 pm)
Re: Finding what is stuck..., J.A. , (Mon Sep 1, 8:12 pm)