Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id <S129228AbQLWJpy>; Sat, 23 Dec 2000 04:45:54 -0500
Received: (majordomo@vger.kernel.org) by vger.kernel.org
	id <S129257AbQLWJpn>; Sat, 23 Dec 2000 04:45:43 -0500
Received: from 213-123-73-193.btconnect.com ([213.123.73.193]:16132 "EHLO
	penguin.homenet") by vger.kernel.org with ESMTP id <S129228AbQLWJpe>;
	Sat, 23 Dec 2000 04:45:34 -0500
Date: Sat, 23 Dec 2000 09:17:06 +0000 (GMT)
From: Tigran Aivazian <tigran@veritas.com>
To: Aaron Sethman <androsyn@ratbox.org>
cc: linux-kernel@vger.kernel.org
Subject: Re: Oops with microcode update driver on 2.2.19pre3
In-Reply-To: <Pine.LNX.4.21.0012222125260.1138-100000@squeaker.ratbox.org>
Message-ID: <Pine.LNX.4.21.0012230914270.814-100000@penguin.homenet>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: linux-kernel-owner@vger.kernel.org
X-Mailing-List: linux-kernel@vger.kernel.org

Hi Aaron,

Although I have not looked at Oops report in detail (Sabbath is now on,
can't do work!) but I am well aware of two (or more) bugs in that area and
one of them may well be the cause of your oops I assumed the
X86_FEATURE flags semantics to be the same on 2.2 as in 2.4 but then
discovered it is different, fix is trivia) -- I will send Alan all the
fixes real soon now. Possibly on Monday/Tuesday during the so-called
"holidays" (I don't recognize those pagan feasts either :)

Regards,
Tigran

On Fri, 22 Dec 2000, Aaron Sethman wrote:

> 
> I am getting the following oops while trying to update the microcode of a
> PII@266mhz using the microcode update driver.  Below is the output of
> ksymoops. This was built using egcs-1.1.2.  
> 
> Also in case it matters I've applied the ide-2.2.18 patch so I can use my
> Promise ATA66 controller and the latest reiserfs patch..
> 
> Regards,
> 
> Aaron
> 
> ksymoops 0.7c on i686 2.2.19pre3.  Options used
>      -V (default)
>      -k /proc/ksyms (default)
>      -l /proc/modules (default)
>      -o /lib/modules/2.2.19pre3/ (default)
>      -m /usr/src/linux/System.map (default)
> 
> No modules in ksyms, skipping objects
> Warning (read_lsmod): no symbols in lsmod, is /proc/modules a valid lsmod file?
> Unable to handle kernel paging request at virtual address c823e12c
> current->tss.cr3 = 05e9b000, %cr3 = 05e9b000
> *pde = 00000000
> Oops: 0000
> CPU:    0
> EIP:    0010:[<c01078b1>]
> Using defaults from ksymoops -t elf32-i386 -a i386
> EFLAGS: 00010202
> eax: 00000006   ebx: 00000000   ecx: 00000000   edx: bf87933c
> esi: c023e120   edi: c6c31000   ebp: c5e9c000   esp: c5e9df4c
> ds: 0018   es: 0018   ss: 0018
> Process microcode_ctl (pid: 1011, process nr: 48, stackpage=c5e9d000)
> Stack: c6c31000 c5e9c000 00250000 06101c8c 00000000 c8a50000 c8a34000 00000000 
>        c010782d 00000000 0001b800 c5e84540 c6c31000 c5e9c000 c0107c21 c5bcabb0 
>        ffffffea c01245c9 c5e84540 bf85db3c 0001b800 c5e84554 c5e9c000 00000003 
> Call Trace: [<c8a50000>] [<c8a34000>] [<c010782d>] [<c0107c21>] [<c01245c9>] [<c0107b38>] [<c01094e8>] 
> Code: a1 2c e1 23 c8 a8 01 74 5a 6a 00 68 20 78 20 c0 e8 d2 bc 00 
> 
> >>EIP; c01078b1 <do_update_one+39/20c>   <=====
> Trace; c8a50000 <END_OF_CODE+87ae578/????>
> Trace; c8a34000 <END_OF_CODE+8792578/????>
> Trace; c010782d <do_microcode_update+d/58>
> Trace; c0107c21 <microcode_write+e9/120>
> Trace; c01245c9 <sys_write+e5/118>
> Trace; c0107b38 <microcode_write+0/120>
> Trace; c01094e8 <system_call+34/38>
> Code;  c01078b1 <do_update_one+39/20c>
> 00000000 <_EIP>:
> Code;  c01078b1 <do_update_one+39/20c>   <=====
>    0:   a1 2c e1 23 c8            mov    0xc823e12c,%eax   <=====
> Code;  c01078b6 <do_update_one+3e/20c>
>    5:   a8 01                     test   $0x1,%al
> Code;  c01078b8 <do_update_one+40/20c>
>    7:   74 5a                     je     63 <_EIP+0x63> c0107914 <do_update_one+9c/20c>
> Code;  c01078ba <do_update_one+42/20c>
>    9:   6a 00                     push   $0x0
> Code;  c01078bc <do_update_one+44/20c>
>    b:   68 20 78 20 c0            push   $0xc0207820
> Code;  c01078c1 <do_update_one+49/20c>
>   10:   e8 d2 bc 00 00            call   bce7 <_EIP+0xbce7> c0113598 <printk+0/16c>
> 
> 
> 
> 

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