From owner-freebsd-current  Fri Jan 12 19: 6:11 2001
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Date: Fri, 12 Jan 2001 19:05:54 -0800
From: Alfred Perlstein <bright@wintelcom.net>
To: John Baldwin <jhb@FreeBSD.ORG>
Cc: Jordan Hubbard <jkh@winston.osd.bsdi.com>, current@FreeBSD.ORG
Subject: Re: Anybody else seeing a broken /dev/lpt with SMP on -current?
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References: <18670.979354005@winston.osd.bsdi.com> <XFMail.010112185559.jhb@FreeBSD.org>
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* John Baldwin <jhb@FreeBSD.ORG> [010112 18:56] wrote:
> 
> On 13-Jan-01 Jordan Hubbard wrote:
> > I've actually been seeing this for about 2 months now but only just
> > now got motivated enough to enable crashdumps and get some information
> > on what happens whenver I try to use the printer attached to my (sadly :)
> > -current SMP box:
> > 
> 
> All the other traces show the kerenl having returned to an address that is
> beyongd the end of the kernel (which causes the page fault) meaning that the
> stack is fubar'd, so the trace isn't meaningful anyways. :(  Knowing how and
> why the lpd interrupt handler trashes the stack is the useful info, and with
> teh stack already trashed, I don't know of an easy way to figure that out. 
> Suggestions welcome.

printf(9)

:)

-Alfred


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