[lkml]   [2008]   [Mar]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 0/5] Generic smp_call_function(), improvements, and smp_call_function_single()
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

 \ /
  Last update: 2008-03-22 13:31    [W:0.150 / U:0.120 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site