Dual Processor instability/apic issues

[Michal Guerquin]

For testing memory, I suggest the program Memtest86:

  http://www.memtest86.com/

The easiest way to use it is to get the zip or tarball, either of which
contain a .bin file about 84KB in size. The just dd the file to a floppy,
and reboot. (In case you are paranoid, the tarball comes with source which
you can audit and compile to make your own .bin :)

I was getting strange errors when make world'ing .. memtest showed errors,
and it turned out one of my DIMMs was bad. Havn't had a problem since I
removed it.

~ Michal
--

Random:

  I was gratified to be able to answer promptly, and I did.  I said I
  didn't know.
  		-- Mark Twain


On 2002-12-02 at 15:17, 'The Buddha' Doug McLean wrote:

>I admit it is rather unlikely, but you could check for overheating CPUs.
>That's exactly what happened to one of our machines.  It would kernel
>panic anytime it did something intense, and once I replaced the fans, it
>worked perfectly.  :\
>
>Doug McLean
>Department of Microbiology
>http://faculty.washington.edu/dougmc
>PGP Public Key ID# 0xF96E92D8
>
>Meanwhile, in Gotham, Scholz Matthew wrote:
>
>> So, I have several dual processor pentium machines,
>> which tend to kernel panic and halt every now and
>> again.  I am looking for possible causes for said
>> behavior.  The kernel error looks to be a memory
>> paging error, but I have yet to delve into the issue
>> deeply enough to give more info.
>>
>> Also, on a related note, two of the dual processor
>> machines require the boot option "noapic" to actually
>> boot up.  This is annoying when all three machines
>> decide to randomly kernel panic at the same time (or
>> over a long weekend) and I have to re-boot them all,
>> so:
>> a) Does anyone know of a kernel compile option I can
>> use to negate the problem? or
>> b) is there an entry I can make in my lilo.conf file
>> to have it default to behave the same way as if I
>> typed "linux noapic" at the lilo prompt?
>>
>> Thanks
>>
>> __________________________________________________
>> Do you Yahoo!?
>> Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
>> http://mailplus.yahoo.com