Re: debugging lockups

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From
Greg 'groggy' Lehey <grog@FreeBSD.org>
Date
4 Mar 2004 14:59:00
Subject
Re: debugging lockups
Message-ID
20040304225854.GL43682@wantadilla.lemis.com

References to

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On Thursday,  4 March 2004 at 14:19:17 -0600, vladimir@math.uic.edu wrote:
> Following up on my previous post from a couple of days ago with the
> same subject (unfortunately I don't have my original email, so this
> will probably start a new thread). A -CURRENT system (built on Mar 3,
> 2004) frequently locks up when typing "ps" or "w", in addition to when
> killing memory-intensive processes. The system locks up hard, and I
> cannot break into the debugger from the console, although the necessary
> options are compiled into the kernel.

Remote debugging over firewire can help you here. Look at gdb(4),
specifically the section "Non-cooperative debugging a live system with
a remote firewire link".

Greg
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