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Date:      Wed, 07 May 2003 09:35:12 +0200
From:      Gary Jennejohn <garyj@jennejohn.org>
To:        Volker Stolz <vs@foldr.org>
Cc:        freebsd-isdn@freebsd.org
Subject:   Re: i4b related panic on -STABLE 
Message-ID:  <200305070735.h477ZCum003049@peedub.jennejohn.org>
In-Reply-To: Message from Volker Stolz <vs@foldr.org>  <20030506214839.GA75934@lambda.foldr.org> 

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Volker Stolz writes:
> On Tue, May 06, 2003 at 11:03:39PM +0200, Gary Jennejohn wrote:
> > > IdlePTD at phsyical address 0x00430000
> > > initial pcb at physical address 0x0033d680
> > > panicstr: ifpi_isac_irq: RPF, i4b_Dgetmbuf returns NULL!
> > >
> >
> > This is a result of not having any mbufs free. Fix that problem and this
> > one will go away.
> 
> Hm. But that this should cause such a drastic crash...
> (BTW the machine has 64M, not 32).

The kernel is trying to allocate an mbuf for the  D-Channel. Without
it nothing can go forward. Since this is a situation which should never
occur the I4B code treats this as a panic condition everywhere.

Changing this behavior would entail a lot of work and probably would
not result in good results anyway.

---
Gary Jennejohn / garyj@jennejohn.org gj@freebsd.org gj@denx.de



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