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Date: Sat, 2 Apr 2005 09:52:40 -0800
From: Kris Kennaway <kris@obsecurity.org>
To: Randy Bush <randy@psg.com>
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cc: FreeBSD Current <freebsd-current@freebsd.org>
Subject: Re: lockup during rdump
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On Sat, Apr 02, 2005 at 07:32:49AM -0800, Randy Bush wrote:
> fxp scsi system, dmesg appended
> current as of 2005.04.01 02:14 gmt
> full make and install of world and kernel with portupgrade (which was min=
or)
>=20
> system locks up during rdump
>=20
> at a ssh pty or the serial console, it will echo what you type, but
> hit return and it does not respond.  a remote gkrellm can see
> changes in the gkrellmd running on the box (over an ssh tunnel).
>=20
> i found no way to get its attention to get a dump, and am open to
> suggestions.

Break to DDB on the serial console, and use 'ps', 'trace', 'show
alllocks' (with witness enabled), 'show lockedvnods' etc.

Kris

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