kern/59719 Re: 4.9 Stable Crashes on SuperMicro with SMP

[Jonathan Gilpin]

The following reply was made to PR kern/59719; it has been noted by GNATS.

From: "Jonathan Gilpin" <jonathan at fluent.ltd.uk>
To: "David Malone" <dwmalone at maths.tcd.ie>,
	<freebsd-gnats-submit at FreeBSD.org>
Cc: <freebsd-bugs at freebsd.org>, <freebsd-stable at freebsd.org>,
	"Don Bowman" <don at sandvine.com>
Subject: Re: kern/59719 Re: 4.9 Stable Crashes on SuperMicro with SMP
Date: Sat, 29 Nov 2003 01:22:21 -0000

 I've run memtest (memtest86.com) kindly provided by Don and it passed all
 the tests. I've installed installed a kernel module to test for memory
 errors and found that again no memory errors are found... So this means it's
 either a problem with the CPU's or a geniune bug in the kernel. (bugger!)
 
 I'm going to switch the CPU's around (we dont have any spare) and then try
 and get spares from my supplier to test with. Today I aslo enabled
 Hypterthreading in the BIOS and Disabled MPS 1.4. This had no effect and the
 box continued to crash...
 
 The strange thing is that this box ran fine using Suse...
 
 The box BTW is a SuperMicro 6013-I (some of you have asked).
 
 Is it worth enabling any debug stuff in the kernel? I'm not familair with
 gdb but can follow instructions to provide more info to anyone investigating
 possible bugs such as these...
 
 Unless the switching of the CPU's around works I'm going to have to go back
 to 1 CPU for stability...
 
 Jonathan
 
 
 
 ----- Original Message ----- 
 From: "David Malone" <dwmalone at maths.tcd.ie>
 To: "Jonathan Gilpin" <jonathan at fluent.ltd.uk>
 Cc: <freebsd-bugs at freebsd.org>; <freebsd-stable at freebsd.org>
 Sent: Thursday, November 27, 2003 2:09 PM
 Subject: Re: 4.9 Stable Crashes on SuperMicro with SMP
 
 
 > On Wed, Nov 26, 2003 at 10:35:49PM -0000, Jonathan Gilpin wrote:
 > > Further Crashes as reported before:
 >
 > Both of these crashes could potentially be caused by hardware or
 > memory problems. While it is possible it's a bug of some sort, I'd
 > start by checking out my hardware, if I were you...
 >
 > David.
 >