It also likely will boot 32-bit SMP kernel with both CPUs with more than
3 GB memory. This provides 3.63 GB
of usable memory.
Dave
On 10/21/2013 4:07 PM, Helge Deller wrote:
Domenico,
On 09/04/2013 04:28 PM, Domenico Andreoli wrote:
J5600 is SMP capable in both 32bit and 64bit mode.
mine doesn't boot 64bit SMP since 2.6.22. I've never been able to trace
it down but can confirm it happens also on more recent kernels.
I confirm that smp parisc64 v3.11 doesn't bring up both the cpus on my
system but at least it boots one, something that didn't happen in some
darker moments since 2.6.22.
similar "SMP: CPU:1 is stuck." happens also with debian v3.10-parisc64-smp kernel.
BTW, this is the most detailed investigation I'm aware of:
https://lkml.org/lkml/2008/4/20/251
Dave Anglin had the idea that the 64bit SMP CPU#1 stuck problems might be
related to PDC- or I/O-space conflicts with physical memory.
On Dave Land's machine (J6750) we could verify that off-list.
I assume you have more than 3GB (4GB) RAM in your machine?
If yes, then if you phyiscally remove some memory so that you leave a max.
of 3GB in, the 64bit SMP kernel will most likely boot up all CPUs.
You wrote:
mine doesn't boot 64bit SMP since 2.6.22.
Are you *really* sure that it booted 64bit SMP with kernel 2.6.22 ?
Or did you maybe upgraded memory after that date?
If it sucessfully booted, then we maybe have only some kind of regression.
Helge
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John David Anglin dave.anglin@xxxxxxxx
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