diff options
| author | Cliff Wickman <cpw@sgi.com> | 2011-03-31 09:32:02 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-03-31 18:44:03 +0200 |
| commit | 818987e9a19c52240ba9b1c20f28f047eef76072 (patch) | |
| tree | 5b67108d385c2065d6fe49a27236eb9699eeb96f /arch/x86/kernel/apic | |
| parent | cb6c8520f6f6bba7b7e1a6de3360a8edfd8243b6 (diff) | |
| download | lwn-818987e9a19c52240ba9b1c20f28f047eef76072.tar.gz lwn-818987e9a19c52240ba9b1c20f28f047eef76072.zip | |
x86, UV: Fix kdump reboot
After a crash dump on an SGI Altix UV system the crash kernel
fails to cause a reboot. EFI mode is disabled in the kdump
kernel, so only the reboot_type of BOOT_ACPI works.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Cc: rja@sgi.com
LKML-Reference: <E1Q5Iuo-00013b-UK@eag09.americas.sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/apic')
| -rw-r--r-- | arch/x86/kernel/apic/x2apic_uv_x.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index d2cf39bc5ecf..33b10a0fc095 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -24,6 +24,7 @@ #include <linux/pci.h> #include <linux/kdebug.h> #include <linux/delay.h> +#include <linux/crash_dump.h> #include <asm/uv/uv_mmrs.h> #include <asm/uv/uv_hub.h> @@ -35,6 +36,7 @@ #include <asm/ipi.h> #include <asm/smp.h> #include <asm/x86_init.h> +#include <asm/emergency-restart.h> DEFINE_PER_CPU(int, x2apic_extra_bits); @@ -811,4 +813,11 @@ void __init uv_system_init(void) /* register Legacy VGA I/O redirection handler */ pci_register_set_vga_state(uv_set_vga_state); + + /* + * For a kdump kernel the reset must be BOOT_ACPI, not BOOT_EFI, as + * EFI is not enabled in the kdump kernel. + */ + if (is_kdump_kernel()) + reboot_type = BOOT_ACPI; } |