From: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
To: ebiederm@xmission.com, vgoyal@redhat.com
Cc: akpm@linux-foundation.org, hpa@linux.intel.com,
kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
jingbai.ma@hp.com
Subject: [PATCH 0/2] x86, apic: Disable BSP if boot cpu is AP
Date: Thu, 29 Aug 2013 18:27:53 +0900 [thread overview]
Message-ID: <20130829092458.5476.10277.stgit@localhost6.localdomain6> (raw)
This is the patch series to address the issue that kdump 2nd kernel
now fails to wake up multiple CPUs.
This is based on 3.11-rc7.
I tested this patch series on x86. I used 2 cpus by specifying
nr_cpus=2 for the 2nd kernel. I checked both ACPI MADT and MP table
case; the former is default on my system and for the latter I did
acpi=off. I crashed the system both on BSP and AP by taskset -c {0,1}
sh -c "echo c > /proc/sysrq-trigger".
---
HATAYAMA Daisuke (2):
x86, apic: Add boot_cpu_is_bsp() to check if boot cpu is BSP
x86, apic: Disable BSP if boot cpu is AP
arch/x86/include/asm/mpspec.h | 5 ++++-
arch/x86/kernel/acpi/boot.c | 11 ++++++++++-
arch/x86/kernel/apic/apic.c | 32 +++++++++++++++++++++++++++++++-
arch/x86/kernel/devicetree.c | 1 +
arch/x86/kernel/mpparse.c | 15 +++++++++++++--
arch/x86/kernel/setup.c | 2 ++
arch/x86/platform/sfi/sfi.c | 2 +-
7 files changed, 62 insertions(+), 6 deletions(-)
--
Thanks.
HATAYAMA, Daisuke
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next reply other threads:[~2013-08-29 9:28 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-29 9:27 HATAYAMA Daisuke [this message]
2013-08-29 9:27 ` [PATCH 1/2] x86, apic: Add boot_cpu_is_bsp() to check if boot cpu is BSP HATAYAMA Daisuke
2013-08-29 9:28 ` [PATCH 2/2] x86, apic: Disable BSP if boot cpu is AP HATAYAMA Daisuke
2013-08-31 5:22 ` Borislav Petkov
2013-09-02 2:32 ` HATAYAMA Daisuke
2013-09-02 7:13 ` Borislav Petkov
2013-09-02 9:42 ` HATAYAMA Daisuke
2013-09-04 6:12 ` Borislav Petkov
2013-09-09 6:18 ` HATAYAMA Daisuke
2013-08-29 13:54 ` [PATCH 0/2] " H. Peter Anvin
2013-08-29 23:37 ` Eric W. Biederman
2013-08-30 12:48 ` Vivek Goyal
2013-08-29 23:51 ` HATAYAMA Daisuke
2013-08-30 15:43 ` H. Peter Anvin
2013-10-09 20:20 ` Vivek Goyal
2013-10-14 9:03 ` Petr Tesarik
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