Date: Mon, 4 May 98 06:29:22 EDT From: luoqi@watermarkgroup.com (Luoqi Chen) To: jb@cimlogic.com.au, luoqi@watermarkgroup.com Cc: current@FreeBSD.ORG Subject: Re: 'fatal trap 12' on boot (smp and up) Message-ID: <9805041029.AA13157@watermarkgroup.com>
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> Luoqi Chen wrote:
> > Just curious, what program were you running? AFAIK, only wine makes use of
> > USER_LDT.
>
> A program linked with libpthread using an ldt to save the thread context.
>
I think I made a mistake in my patch that cause the core dump. Try to
enclose the two lines in the patch that reset fs and gs inside
if (pcb == curpcb) {}. Without this, the code might trash fs & gs in
another process' context.
-lq
> --
> John Birrell - jb@cimlogic.com.au; jb@freebsd.org http://www.cimlogic.com.au/
> CIMlogic Pty Ltd, GPO Box 117A, Melbourne Vic 3001, Australia +61 418 353 137
>
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