I have an Intel P4 processor with HT (hyper threading support).
This means, one CPU seems and behaves like two CPUs.
When I use unionfs in my Linux notebook, everything is OK.
But when I use the same unionfs.ko module on the P4 machine (with the
same kernel),
it causes many SEGFAULTs etc. The only way to fix it
is to boot the kernel with "acpi=off", which disables ACPI and SMP (both).
Then it works flawlessly. Maybe it's only a bug in Linux kernel ACPI or
SMP code,
nevertheless I would like to ask a general question:
Is it any special case of usage to run unionsf on multiprocessor machines?
In other words, do you, developers, think about multiprocessor configuration
while developing unionfs? Is there any difference?
Basically I don't depend on the answer, just would like to bring
this to your attention.
Thank you very much
Tomas M
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