Date: Sat, 29 Nov 2003 05:50:22 -0800 (PST) From: "Jonathan Gilpin" <jonathan@fluent.ltd.uk> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/59719 Re: 4.9 Stable Crashes on SuperMicro with SMP Message-ID: <200311291350.hATDoMC6054115@freefall.freebsd.org>
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The following reply was made to PR kern/59719; it has been noted by GNATS. From: "Jonathan Gilpin" <jonathan@fluent.ltd.uk> To: <freebsd-gnats-submit@FreeBSD.org> Cc: <freebsd-bugs@freebsd.org>, <freebsd-stable@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@fluent.ltd.uk> To: "David Malone" <dwmalone@maths.tcd.ie>; <freebsd-gnats-submit@FreeBSD.org> Cc: <freebsd-bugs@freebsd.org>; <freebsd-stable@freebsd.org>; "Don Bowman" <don@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@maths.tcd.ie> > To: "Jonathan Gilpin" <jonathan@fluent.ltd.uk> > Cc: <freebsd-bugs@freebsd.org>; <freebsd-stable@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. > > >
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