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Date:      Sun, 10 Mar 2002 18:15:53 +0000 (UTC)
From:      naddy@mips.inka.de (Christian Weisgerber)
To:        freebsd-current@freebsd.org
Subject:   Re: Serial break into debugger broken from 'cu' on -CURRENT?
Message-ID:  <a6g7sp$2ect$1@kemoauc.mips.inka.de>
References:  <Pine.NEB.3.96L.1020310100210.61696P-100000@fledge.watson.org> <20020310161126.A18441@freebie.xs4all.nl> <p0510151db8b13ce922ff@[10.1.1.118]> <20020310175626.A18718@freebie.xs4all.nl>

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Wilko Bulte <wkb@freebie.xs4all.nl> wrote:

> It could be that the DS10 was sufficiently catatonic to not react to
> a break (how likely is that in the first place? I was looking at a hard
> lockup).

If you experience one of the lockups that currently plague
-CURRENT/alpha, the machine won't react to break, ctrl-alt-esc, or
anything else except HALT and RESET.

> Now that I followed Drew's suggestion to
> 
> <quote>
> I suggest reverting rev 1.61 of alpha/alpha/interrupt.c (eg, disable
> interrupt thread preemption).
> </quote>
> 
> I have not seen a lockup anymore.

Neither have I, but I have only been running with it for a day, and
it has previously managed to survive for up to two days without
locking up.

-- 
Christian "naddy" Weisgerber                          naddy@mips.inka.de


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