From: Eric Dumazet <dada1@cosmosbay.com>
To: Andi Kleen <ak@suse.de>
Cc: discuss@x86-64.org, Kirill Korotaev <dev@sw.ru>,
linux-kernel@vger.kernel.org, Linus Torvalds <torvalds@osdl.org>,
Andrew Morton <akpm@osdl.org>,
xemul@sw.ru, Andrey Savochkin <saw@sawoct.com>,
st@sw.ru
Subject: Re: [discuss] Re: SMP syncronization on AMD processors (broken?)
Date: Thu, 06 Oct 2005 16:10:10 +0200 [thread overview]
Message-ID: <43453042.4030400@cosmosbay.com> (raw)
In-Reply-To: <200510061556.31305.ak@suse.de>
Andi Kleen a écrit :
> On Thursday 06 October 2005 15:50, Eric Dumazet wrote:
>
>
>>Maybe we should reflect this in Kconfig ?
>>
>>config NR_CPUS
>>range 2 128
>>
>>Or use a plain int for spinlock, instead of a signed char.
>
>
> Hmm? 2.6 already uses int as far as I can see.
>
Not in public 2.6 at least.
ffffffff8030be10 <_spin_lock>:
ffffffff8030be10: 55 push %rbp
ffffffff8030be11: 48 89 e5 mov %rsp,%rbp
ffffffff8030be14: f0 fe 0f lock decb (%rdi)
ffffffff8030be17: 0f 88 d1 02 00 00 js <.text.lock.spinlock>
ffffffff8030be1d: c9 leaveq
ffffffff8030be1e: c3 retq
Sorry Andi, I only trust assembly :)
Eric
next prev parent reply other threads:[~2005-10-06 14:10 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-06 13:05 SMP syncronization on AMD processors (broken?) Kirill Korotaev
2005-10-06 13:14 ` linux-os (Dick Johnson)
2005-10-06 13:19 ` Arjan van de Ven
2005-10-06 13:32 ` Andrey Savochkin
2005-10-06 14:22 ` Arjan van de Ven
2005-10-06 13:32 ` Andi Kleen
2005-10-06 13:46 ` Andrey Savochkin
2005-10-06 14:02 ` [discuss] " Andi Kleen
2005-10-06 14:52 ` Linus Torvalds
2005-10-06 15:21 ` Andrey Savochkin
2005-10-06 15:46 ` Linus Torvalds
2005-10-11 0:59 ` Andrew Morton
2005-10-11 1:20 ` Andi Kleen
2005-10-11 3:20 ` Joe Seigh
2005-10-06 13:50 ` Eric Dumazet
2005-10-06 13:56 ` [discuss] " Andi Kleen
2005-10-06 14:10 ` Eric Dumazet [this message]
2005-10-06 14:11 ` Andi Kleen
2005-10-06 14:45 ` Linus Torvalds
2005-10-06 15:34 ` Hugh Dickins
2005-10-06 15:53 ` Eric Dumazet
2005-10-06 16:01 ` Linus Torvalds
2005-10-07 20:38 ` Joe Seigh
2005-10-07 20:57 ` Stephen Hemminger
2005-10-13 18:24 ` Joe Seigh
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