linux-kernel - Re: change strip_cache_size freeze the whole raid

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Date:	Tue, 23 Jan 2007 22:22:51 +0800
From:	"kyle" <kylewong@...tha.com>
To:	"Justin Piszcz" <jpiszcz@...idpixels.com>,
	"Steve Cousins" <steve.cousins@...ne.edu>
Cc:	<linux-raid@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: change strip_cache_size freeze the whole raid

> I can try and do this later this week possibly.

> Justin.
>>
>> alt-sysrq-T or "echo t > /proc/sysrq-trigger" can be really helpful to
>> diagnose this sort of problem (providing the system isn't so badly
>> stuck that the kernel logs don't get stored).
>>
>> It is probably hitting a memory-allocation deadlock, though I cannot
>> see exactly where the deadlock would be.  If you are able to reproduce
>> it and can get the kernel logs after 'alt-sysrq-T' I would really
>> appreciate it.
>> Justin,Maybe you can try freeze it once more and get the kernel logs 
>> before try Neil's patch ...... :D~Kyle 

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