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Date: Tue, 23 Sep 2008 16:47:42 -0400
From: Mikhail Teterin <mi+mill@aldan.algebra.com>
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To: Robert Watson <rwatson@FreeBSD.org>
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Cc: stable@FreeBSD.org
Subject: Re: 7.0-stable: a hung process - scheduler bug?
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Robert Watson ΞΑΠΙΣΑΧ(ΜΑ):
> Could you try procstat -kk on the process, does that shed any light?
When I was trying `procstat -k', I was getting the message:

      PID    TID COMM             TDNAME          
    KSTACK                      
    procstat: sysctl: kern.proc.kstack unavailable
    procstat: options DDB or options STACK required in kernel

That was with a single `-k'. I can't do anything now, because -- after 
an attempt to start `systat 1 -vm' -- the system hosed and would not 
start new processes. The existing ones, such as the cvs-over ssh are 
stuck in:

    load: 0.00  cmd: ssh 59098 [proctree] 0.41u 0.17s 0% 0k

Yours,

    -mi