[Wylug-help] D uninterruptible sleep (usually IO) WAS: NFS woes

[Roger Leigh]

Dave Fisher <davef at gbdirect.co.uk> writes:

> On Wed, Jul 14, 2004 at 10:53:33PM +0100, Roger Leigh wrote:
>> If you try some ps options, you'll be able to see exactly which call
>> it's stuck in, which might be helpful.
>
> Suggestions?
>
> The ps man page is not the worst, but it does suffer from the
> classic 'I'm not going to tell you what any of these codes mean, you
> should know them already' problem.

See "OUTPUT FORMAT CONTROL".

ps ax -Flj

==>
0 S roger    11847 11842 11842  8371  0  75  -1 -  1125 wait4  1224
0 00:25 pts/30     0:00 sh -c (echo '.ll 111

The important bit is the "wait4", which is the system call it's
waiting on.  Also have a poke under /prod/<pid>.


--
Roger Leigh

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