Dual Xeon EM64T crashes reliably w/ 5.x amd64

[Palle Girgensohn]

2005-05-26 kl. 03.39 skrev Mike Jakubik:

> On Wed, May 25, 2005 8:44 pm, Palle Girgensohn said:
>>
>
>>
>> HTT is off (byt setting in BIOS). It helped for a couple of days, but
>> now it crashes with "simple" dual SMP as well. Turning SMP off in  
>> kernel
>> config makes the machine stable, so this is an SMP problem, AFAIKT.
>>
>>
>> Can anyone conclude if this is a harware problem? There must be tons  
>> of
>> Dell 2850's out there, aren't any running FreeBSD 5.4/amd64? Are they
>> stable?
>
> You would have to enable debugging, and let us know the result. Please
> look at
> http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/ 
> kerneldebug.html
> for more info. Also, a dmesg of your system would be useful too.

Debugging is on, but the crash/panic does not write a core, it never  
happens, the system is too hung for that... it does no automatic  
reboot, and is completely unresponsive, I have to hit the big button to  
restart it. :(

KDB
KDB_UNATTENDED
KDB_TRACE

Not even the KDB_TRACE reveals anything...

/Palle