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checking TSC synchronization

Submitted by handrix
on September 14, 2009 - 9:38am

Im' trying to upgrade a Linux kernel from 2.6.18 to 2.6.30.
The machine is a HP Proliant with Intel Xeon processor double six core. The 2.6.18 kernel work fine.

When booting with the 2.6.30, the kernel can not identify more than 8 CPU and i get this message :

checking TSC synchronization [CPU#0 -> CPU#8]: passed.

And the kernel could not boot.
Please can you help me with this

‹ High traffic with Multicore System where one cpu is used up to 100% and rest behave normal GDT assignment ›

"passed"

strcmp
on
September 14, 2009 - 3:05pm

since the mentioned check passed, the problem must be _after_ this check. '[CPU#0 -> CPU#8]' are 9 cpus, by the way, not 8. can you boot on another machine (e.g. with less cpus) to determine the next boot message i.e. the step that failed?

did you build the kernel yourself? what did you enter as 'Maximum number of CPUs'? are you sure you included everything to support your machine?

CONFIG_NR_CPUS=32

handrix
on
September 15, 2009 - 8:15am

Yes i build the kernel myself, and i used the 2.6.18 config that already knows all CPUs.
the number of CPUS is set to 32
CONFIG_NR_CPUS=32

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