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Date:      Fri, 5 Mar 2004 09:28:54 +1030
From:      Greg 'groggy' Lehey <grog@FreeBSD.org>
To:        vladimir@math.uic.edu
Cc:        freebsd-current@freebsd.org
Subject:   Re: debugging lockups
Message-ID:  <20040304225854.GL43682@wantadilla.lemis.com>
In-Reply-To: <20040304201917.GB27377@math.uic.edu>
References:  <20040304201917.GB27377@math.uic.edu>

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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
--
Note: I discard all HTML mail unseen.
Finger grog@FreeBSD.org for PGP public key.
See complete headers for address and phone numbers.

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