Hi,
i am having exactly the same problem! One of my servers
locks up once in a while and i was reading your post and i thought it might
be
the same problem with me, and it indeed is.
The server consists of:
Supermicro 370DLE motherbord
Dual 1Ghz Pentium III CPU's
1.5 Gig memory (highmem enabled)
2 ide software raid-0's and a scsi linux disk.
My systems also hangs after a short while when running such a script.
And it just hangs in the same way every now and then (mostly after 1 to 2
weeks
uptime). The HDD-led burns constantly when the system locks up.
SysRq aint responding when it locks up neither.
I have not been able to try without SMP support yet, altho i will (hopefully
today)
test it. I have been having this problem for a some time now and did not
solve it yet.
I will aslo try the nmi_watchdog=1 and kdb, if i get some more information i
will mail it.
-- Alex (alex@packetstorm.nu)On Thursday, December 20, 2001 3:10 PM, "Keith Owens" <kaos@ocs.com.au> wrote: > > On Wed, 19 Dec 2001 16:22:47 -0500, > "T. A." <tkhoadfdsaf@hotmail.com> wrote: > > Anyone know how I could debug the cause of this problem? Machine > >deadlocks. Not even an Ooops so I'm short on ideas on how to track the > >problem down. Please help. 8-( My new SMP system sucks on Linux. 8-( > > Compile for SMP and boot with nmi_watchdog=1. If the problem is > hardware that will not help. If the problem is a software loop in > kernel space (much more likely) then the nmi watchdog will trip after 5 > seconds. > > You might also find the kernel debugger to be useful, > ftp://oss.sgi.com/projects/kdb/download/ix86. See Documentation/kdb > for man pages. Using the pause key on a PC keyboard or control-A on a > serial console will drop into kdb, unless the kernel has stopped > processing interuupts, in which case the nmi watchdog should trip and > drop you into kdb. > > For all low level debugging, I strongly recommend a serial console so > you can capture the output on another system, see > Documentation/serial-console.txt. >
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This archive was generated by hypermail 2b29 : Sun Dec 23 2001 - 21:00:22 EST