Messages in this thread |  | | Date | Sat, 22 Mar 2008 13:29:03 +0100 | From | Jens Axboe <> | Subject | Re: [PATCH 0/5] Generic smp_call_function(), improvements, and smp_call_function_single() |
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On Fri, Mar 21 2008, Luck, Tony wrote: > > My thinking was that it may need a bit of help to ensure that the init > > function for single call data works, > > The problem may be worse than that. I see that you have a per-cpu > "call_single_queue" on which you do some list operations. On ia64 > the per-cpu variables live at the same virtual address on each processor > with a per-cpu TLB mapping directing them to a different physical > address on each. This makes Linux lists very confused.
Funky, how does accessing other CPU's per-cpu variables work on ia64 then? Perhaps I made some false assumptions. Unfortunately I have no access to any IA64 machines, so I either have to yank the ia64 bits (which is unfortunate, since Alan tests on those :-) or rely on a bit of help from you and/or others in getting that bit right.
-- Jens Axboe
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