Return-Path: <linux-kernel-owner+willy=40w.ods.org@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id <S266297AbTAOMaY>; Wed, 15 Jan 2003 07:30:24 -0500
Received: (majordomo@vger.kernel.org) by vger.kernel.org
	id <S266298AbTAOMaY>; Wed, 15 Jan 2003 07:30:24 -0500
Received: from penguin-ext.wise.edt.ericsson.se ([193.180.251.47]:65453 "EHLO
	penguin.wise.edt.ericsson.se") by vger.kernel.org with ESMTP
	id <S266297AbTAOMaX>; Wed, 15 Jan 2003 07:30:23 -0500
X-Sybari-Trust: c10e2710 1864f774 206fc897 00000138
From: Miklos.Szeredi@eth.ericsson.se (Miklos Szeredi)
Date: Wed, 15 Jan 2003 13:38:58 +0100 (MET)
Message-Id: <200301151238.h0FCcwh11218@duna48.eth.ericsson.se>
To: davej@codemonkey.org.uk
CC: linux-kernel@vger.kernel.org
In-reply-to: <20030115122324.GC32694@codemonkey.org.uk> (message from Dave
	Jones on Wed, 15 Jan 2003 12:23:24 +0000)
Subject: Re: VIA C3 and random SIGTRAP or segfault
References: <200301150929.h0F9T1I10444@duna48.eth.ericsson.se> <20030115122324.GC32694@codemonkey.org.uk>
Sender: linux-kernel-owner@vger.kernel.org
X-Mailing-List: linux-kernel@vger.kernel.org


Thanks, I'll check that out, though I'm a bit sceptical since the
crashes occur randomly not predictably, and that makes me feel it's
not because of an unimplemented instruction.

Also what about trace/breakpoint trap?  Can that be also generated by
an illegal instruction?

Thanks,
Miklos

> On Wed, Jan 15, 2003 at 10:29:01AM +0100, Miklos Szeredi wrote:
>  > 
>  > I just bought a VIA C3 866 processor, and under very special
>  > circumstances some programs (e.g. mplayer, xmms) randomly crash with
>  > trace/breakpoint trap or segmentation fault.  Otherwise the system
>  > seems stable even under high load.
> 
> Be sure that those programs aren't compiled for 686. The C3 lacks
> cmov, so it'll segfault when it hits that opcode. You can confirm
> this by running it under gdb, and disassembling where it segv's to.
> This is still a common problem thats biting some people. The debian
> folks had a broken libssl for months up until recently.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/