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Date:      Mon, 23 Jan 2006 16:56:51 +0200
From:      Ion-Mihai Tetcu <itetcu@people.tecnik93.com>
To:        Gleb Smirnoff <glebius@FreeBSD.org>
Cc:        Christian Brueffer <chris@unixpages.org>, stable@FreeBSD.org
Subject:   Re: panic: mb_dtor_mbuf: M_EXT set
Message-ID:  <20060123165651.1ec6ae9d@it.buh.tecnik93.com>
In-Reply-To: <20060123145025.GU83922@cell.sick.ru>
References:  <20060121120902.GA83922@FreeBSD.org> <20060122131712.GL83922@FreeBSD.org> <20060122141623.GA935@haakonia.hitnet.RWTH-Aachen.DE> <20060122235854.760678f3@it.buh.tecnik93.com> <20060123080525.GM83922@cell.sick.ru> <20060123162709.4e9871f9@it.buh.tecnik93.com> <20060123143147.GR83922@cell.sick.ru> <20060123163507.7367d719@it.buh.tecnik93.com> <20060123143956.GS83922@cell.sick.ru> <20060123164453.40b9bf5f@it.buh.tecnik93.com> <20060123145025.GU83922@cell.sick.ru>

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On Mon, 23 Jan 2006 17:50:25 +0300
Gleb Smirnoff <glebius@FreeBSD.org> wrote:

> On Mon, Jan 23, 2006 at 04:44:53PM +0200, Ion-Mihai Tetcu wrote:
> I> > Probably you hit another incorrect KASSERT in kern_mbuf.c. I have
> I> > removed it some time after the first one. Since X was starting at
> I> > this moment you couldn't be dropped into debugger, and so the
> I> > box was rebooting.
> I> 
> I> I don't know if I understand you right, but starting a bare X and
> I> playing around for a while then typing startkde resulted in a
> I> reset.
> 
> When panic happens and you have X on the screen, the kernel can't
> switch to syscons. It dumps core if you have KDB_UNATTENDED in
> kernel, in other case it just reboots.

I don't have KDB_UNATTENDED but on this machine the in the last week I
got an automatic dump (on a "kmem_map too small" while running an RC1
kernel) and then the reboot and I was under X (kde); I remember I had
to wait and watch the HDD led w/o being able to do anything else.


-- 
IOnut - Unregistered ;) FreeBSD "user"
  "Intellectual Property" is   nowhere near as valuable   as "Intellect"

Without freedom of choice there is no creativity.
		-- Kirk, "The return of the Archons", stardate 3157.4





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