linux-kernel - Re: xfs [_fsr] probs in 2.6.24.0

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Date:	Tue, 12 Feb 2008 15:54:23 -0600
From:	Eric Sandeen <sandeen@...deen.net>
To:	Linda Walsh <xfs@...nx.org>
CC:	David Chinner <dgc@....com>, Linux-Xfs <linux-xfs@....sgi.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: xfs [_fsr] probs in 2.6.24.0

Linda Walsh wrote:
> 
> Eric Sandeen wrote:
>> Linda Walsh wrote:
>>> David Chinner wrote:
>>>> Filesystem bugs rarely hang systems hard like that - more likely is
>>>> a hardware or driver problem. And neither of the lockdep reports
>>>> below are likely to be responsible for a system wide, no-response
>>>> hang.
>>> ---
>>> 	"Ish", the 32-bitter, has been the only hard-hanger.
>> 4k stacks?
> ----
> 	But but but...almost from the day they were introduced.  And
> these are more recent probs. Has stack usage increased for some reason,
> :-(.  I do have the option to detect stack-overflow turned on as well
> -- guess it doesn't work so well?

Resource requirements grow over time, film at 11? :)

the checker is a random thing, it checks only on interrupts; it won't
always hit.  you could try CONFIG_DEBUG_STACK_USAGE too, each thread
prints max stack used when it exits, to see if you're getting close on
normal usage.

Or just use 8k.

-Eric
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