From 8bcc5280e68878d2b989c91d98305109e391c86a Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Tue, 18 Apr 2006 12:35:13 +0200 Subject: [PATCH] [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 Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/traps.c | 5 +++++ 1 file changed, 5 insertions(+) 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 #include #include +#include #include #include @@ -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"); -- 2.20.1