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: <freebsd-gnats-submit at FreeBSD.org>
Cc: <freebsd-bugs at freebsd.org>, <freebsd-stable at freebsd.org>
Subject: Re: kern/59719 Re: 4.9 Stable Crashes on SuperMicro with SMP
Date: Sat, 29 Nov 2003 13:41:39 -0000

 Having disabled the SMP in the kernel. The box is running with
 Hypterthreading Turned on thus using 2 virtual CPU's.
 
 Would this indicatate that the problem is with the second CPU? Or does this
 prove nothing...
 
 Jonathan
 
 
 
 ----- Original Message ----- 
 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>
 Sent: Saturday, November 29, 2003 1:22 AM
 Subject: Re: kern/59719 Re: 4.9 Stable Crashes on SuperMicro with SMP
 
 
 > 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.
 > >
 >