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Home » Mailing list archives » linux-kernel » 2008 » March » 21

RE: [PATCH 0/5] Generic smp_call_function(), improvements, and smp_call_function_single()

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From: Luck, Tony <tony.luck@...>
To: Jens Axboe <jens.axboe@...>
Cc: <linux-kernel@...>, <npiggin@...>, <paulus@...>, <tglx@...>, <mingo@...>
Subject: RE: [PATCH 0/5] Generic smp_call_function(), improvements, and smp_call_function_single()
Date: Friday, March 21, 2008 - 2:56 pm

> My thinking was that it may need a bit of help to ensure that the init

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.

-Tony
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Messages in current thread:
[PATCH 0/5] Generic smp_call_function(), improvements, and s..., Jens Axboe, (Wed Mar 19, 7:56 am)
RE: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Luck, Tony, (Fri Mar 21, 2:22 pm)
Re: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Jens Axboe, (Fri Mar 21, 2:31 pm)
RE: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Luck, Tony, (Fri Mar 21, 2:56 pm)
Re: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Jens Axboe, (Sat Mar 22, 8:29 am)
RE: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Luck, Tony, (Mon Mar 24, 12:45 pm)
Re: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Ingo Molnar, (Fri Mar 21, 5:53 am)
Re: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Jens Axboe, (Fri Mar 21, 9:15 am)
Re: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Ingo Molnar, (Thu Mar 27, 6:08 am)
Re: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Jens Axboe, (Thu Mar 27, 6:37 am)
Re: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Ingo Molnar, (Thu Mar 27, 6:43 am)
Re: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Jens Axboe, (Thu Mar 27, 8:02 am)
Re: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Ingo Molnar, (Thu Mar 27, 8:32 am)
Re: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Jens Axboe, (Thu Mar 27, 8:35 am)
Re: [PATCH 0/5] Generic smp_call_function(), improvements, a..., Nick Piggin, (Tue Mar 25, 4:00 am)
[PATCH 4/5] powerpc: convert to generic helpers for IPI func..., Jens Axboe, (Wed Mar 19, 7:56 am)
[PATCH 5/5] ia64: convert to generic helpers for IPI functio..., Jens Axboe, (Wed Mar 19, 7:56 am)
[PATCH 3/5] x86-64: convert to generic helpers for IPI funct..., Jens Axboe, (Wed Mar 19, 7:56 am)
[PATCH 2/5] x86: convert to generic helpers for IPI function..., Jens Axboe, (Wed Mar 19, 7:56 am)
[PATCH 1/5] Add generic helpers for arch IPI function calls, Jens Axboe, (Wed Mar 19, 7:56 am)

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