diff options
| author | Vivek Goyal <vgoyal@in.ibm.com> | 2006-04-18 14:35:13 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-18 21:39:19 +0400 |
| commit | 8bcc5280e68878d2b989c91d98305109e391c86a (patch) | |
| tree | f6a804b0d1f080af45ebdcf2552a33840f059d85 | |
| parent | 87cb23a48c208f31ab87c7a2aad37dbb355575f3 (diff) | |
| download | linux-8bcc5280e68878d2b989c91d98305109e391c86a.tar.xz | |
[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.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 6bda322d3caf..2700b1375c1f 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"); |