mprotect and SMP

[Benjamin Herrenschmidt]

>(2.2.18-pre11) which uses the mprotect call to lock pages between the
>threads.  If I run the test program on this machine in SMP mode, it
>fails (threads tromp on their shared memory locations).  If I run in
>uni-processor mode however it works fine.  It also works fine on a dual
>processor pentium using a similar version of the kernel.  The question
>is... Has anyone seen this sort of behavior and are there any suggested
>places to start looking to fix it?  I took a look at the gemini specific
>files to see if there were any obvious missing eieio or sync
>instructions and so far haven't seen any, but I don't have the
>experience to know where else I should be looking.

Can you get the latest bitkeeper _2_2 tree or paulus latest rsync
tree and see if it still happens ?

Ben.

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