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authorVivek Goyal <vgoyal@in.ibm.com>2006-04-18 12:35:13 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-18 10:39:19 -0700
commit8bcc5280e68878d2b989c91d98305109e391c86a (patch)
treef6a804b0d1f080af45ebdcf2552a33840f059d85
parent87cb23a48c208f31ab87c7a2aad37dbb355575f3 (diff)
[PATCH] x86_64: x86_64 add crashdump trigger points
o Start booting into the capture kernel after an Oops if system is in a unrecoverable state. System will boot into the capture kernel, if one is pre-loaded by the user, and capture the kernel core dump. o One of the following conditions should be true to trigger the booting of capture kernel. - panic_on_oops is set. - pid of current thread is 0 - pid of current thread is 1 - Oops happened inside interrupt context. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--arch/x86_64/kernel/traps.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index 6bda322d3ca..2700b1375c1 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -30,6 +30,7 @@
#include <linux/moduleparam.h>
#include <linux/nmi.h>
#include <linux/kprobes.h>
+#include <linux/kexec.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -433,6 +434,8 @@ void __kprobes __die(const char * str, struct pt_regs * regs, long err)
printk(KERN_ALERT "RIP ");
printk_address(regs->rip);
printk(" RSP <%016lx>\n", regs->rsp);
+ if (kexec_should_crash(current))
+ crash_kexec(regs);
}
void die(const char * str, struct pt_regs * regs, long err)
@@ -455,6 +458,8 @@ void __kprobes die_nmi(char *str, struct pt_regs *regs)
*/
printk(str, safe_smp_processor_id());
show_registers(regs);
+ if (kexec_should_crash(current))
+ crash_kexec(regs);
if (panic_on_timeout || panic_on_oops)
panic("nmi watchdog");
printk("console shuts up ...\n");