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RE: hang release-1.3.3pre2 from ScientificLinux

To: "'Eric Sandeen'" <sandeen@xxxxxxx>
Subject: RE: hang release-1.3.3pre2 from ScientificLinux
From: Mark Grimes <MGrimes@xxxxxxxxxxxxxxxxx>
Date: Fri, 13 Aug 2004 13:38:52 -0700
Cc: "'linux-xfs@xxxxxxxxxxx'" <linux-xfs@xxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
Yes, 8GB 133MHz ECC DDR memory.
Also, I have an 8GB swap partition.

modinfo xfs output:
filename:    /lib/modules/2.4.21-15.EL.sgi3smp/kernel/fs/xfs/xfs.o
description: "SGI XFS 1.3.3 with ACLs, large block numbers, no debug
enabled"
author:      "Silicon Graphics, Inc."
license:     "GPL"

uname -r output:
2.4.21-15.EL.sgi3smp

Does an 8GB memory system require the bigmem kernel?  I thought that started
at 16GB?

I had to hand copy the bt from the kdb:

Entering kdb (current=0xc0410000, pid 0) on processor 0 due to Keyboard
Entry
[0]kdb> bt
Stack traceback for pid 0
0xc0410000         0     0  1     0  R  0xc0010580 *swapper
ESP        EIP        Function
0xc0411fc0 0xc0109109 default_idle+0x29  (0xc0410000, 0x998000, 0xc0107000)
                      kernel .text  0xc0100000 0xc01090e0 0xc0109130
0xc0411fc4 0xc01091a2 cpu_idle+0x42
                      kernel .text  0xc0100000 0xc0109160 0xc01091c0
0xc0411fd8 0xc010704d stext+0x4d
                      kernel .text  0xc0100000 0xc0100000 0xc0107070
0xc0411fec 0xc0413880 Start_Kernel+0x160
                      kernel .text.init  0xc0413000 0xc0413720 0xc04138b0




-----Original Message-----
From: Eric Sandeen [mailto:sandeen@xxxxxxx]
Sent: Friday, August 13, 2004 11:04 AM
To: Mark Grimes
Cc: 'linux-xfs@xxxxxxxxxxx'
Subject: Re: hang release-1.3.3pre2 from ScientificLinux


8G==memory?

Hm, how is xfs config'd - `modinfo xfs` ....
Also which kernels from each distro, RHEL has -bigmem etc...

Can you enable KDB, and see if you can break in?

echo 1 > /proc/sys/kernel/kdb

-Eric

Mark Grimes wrote:
> All,
> 
> I've been doing a study of SLESv8 and RHEL with XFS.
> I installed the ScientificLinux on a Dual 3GHz Xeon server from
Supermicro.
> I also have an IBM ProFiber JBOD attached on which I run XFS.
> I've been running specSFS tests.
> With 4GB the test runs great.
> When I run the same test with 8GB installed, the system hangs hard part
way
> through my first mix (1800).  No console, nothing.  I'm forced to use the
> reset button.  I ran it twice just to make sure.  Then, on the same system
I
> changed to my SLESv8 disk.  With SLES, the same test did not fail.  It
> continued on to very nice results.  Has anyone else seen problems with
8GB?
> 
> -Mark
> 
> 
> 


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