From: Akinobu Mita <akinobu.mita@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Mike Travis <travis@sgi.com>, Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH -mm] fix wrong /proc/cpuinfo output
Date: Tue, 9 Oct 2007 19:43:21 +0900 [thread overview]
Message-ID: <20071009104321.GA32272@APFDCB5C> (raw)
This patch fixes the problem introduced by:
http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.23-rc8/2.6.23-rc8-mm2/broken-out/x86-convert-cpuinfo_x86-array-to-a-per_cpu-array.patch
The problem is that every processor line in /proc/cpuinfo displays zero
on x86_64.
$ grep processor /proc/cpuinfo
processor : 0
processor : 0
Because early_identify_cpu() overwrites c->cpu_index for every cpuinfo.
This patch removes that unnecessary initialization for c->cpu_index.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Index: 2.6-mm/arch/x86_64/kernel/setup.c
===================================================================
--- 2.6-mm.orig/arch/x86_64/kernel/setup.c
+++ 2.6-mm/arch/x86_64/kernel/setup.c
@@ -967,7 +967,6 @@ void __cpuinit early_identify_cpu(struct
#ifdef CONFIG_SMP
c->phys_proc_id = (cpuid_ebx(1) >> 24) & 0xff;
- c->cpu_index = 0;
#endif
/* AMD-defined flags: level 0x80000001 */
xlvl = cpuid_eax(0x80000000);
next reply other threads:[~2007-10-09 10:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-09 10:43 Akinobu Mita [this message]
2007-10-09 13:32 ` [PATCH -mm] fix wrong /proc/cpuinfo output Ahmed S. Darwish
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