From: Keith Owens <kaos@ocs.com.au>
To: Andrew Morton <akpm@osdl.org>
Cc: James Bottomley <James.Bottomley@SteelEye.com>,
stsp@aknet.ru, linux-kernel@vger.kernel.org
Subject: Re: the creation of boot_cpu_init() is wrong and accessing uninitialised data
Date: Tue, 27 Jun 2006 23:00:09 +1000 [thread overview]
Message-ID: <31382.1151413209@ocs3.ocs.com.au> (raw)
In-Reply-To: Your message of "Mon, 26 Jun 2006 22:03:37 MST." <20060626220337.06014184.akpm@osdl.org>
Andrew Morton (on Mon, 26 Jun 2006 22:03:37 -0700) wrote:
>It's a bit odd - I think non-zero BSPs happen a bit more often than
>only-on-voyager.
AFAICR, the BSP is supposed to be logical cpu 0 on all architectures.
Most architectures assign logical cpu 0 to the BSP, even if the BSP has
a non-zero hard_smp_processor_id. ia64 even has this
int __cpu_disable(void)
{
int cpu = smp_processor_id();
/*
* dont permit boot processor for now
*/
if (cpu == 0 && !bsp_remove_ok) {
next prev parent reply other threads:[~2006-06-27 12:59 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-27 2:45 the creation of boot_cpu_init() is wrong and accessing uninitialised data James Bottomley
2006-06-27 3:04 ` Andrew Morton
2006-06-27 3:36 ` James Bottomley
2006-06-27 5:03 ` Andrew Morton
2006-06-27 13:00 ` Keith Owens [this message]
2006-06-27 14:01 ` James Bottomley
2006-06-27 14:49 ` James Bottomley
2006-06-28 0:04 ` Andrew Morton
2006-06-28 2:45 ` James Bottomley
2006-06-28 2:57 ` Andrew Morton
2006-06-28 23:10 ` James Bottomley
2006-06-29 16:58 ` James Bottomley
2006-07-02 14:52 ` Eric W. Biederman
2006-07-02 15:06 ` James Bottomley
2006-07-02 15:37 ` Eric W. Biederman
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