From: Randy Dunlap Date: Tue, 11 Apr 2006 05:53:11 +0000 (-0700) Subject: [PATCH] i386: print EIP/ESP last X-Git-Tag: v2.6.17-rc2~255 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7bee5c0fd2b25d185650cbfa049823e03f648c09;p=linux-2.6 [PATCH] i386: print EIP/ESP last Print summary registers (EIP and SS:ESP only) as last death info. This makes this important data visible in case it had scrolled off the top of the display. Similar to what x86_64 does. Suggested by Andi Kleen. Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index e385279945..2d22f5761b 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -365,6 +365,9 @@ void die(const char * str, struct pt_regs * regs, long err) if (++die.lock_owner_depth < 3) { int nl = 0; + unsigned long esp; + unsigned short ss; + handle_BUG(regs); printk(KERN_EMERG "%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter); #ifdef CONFIG_PREEMPT @@ -387,8 +390,19 @@ void die(const char * str, struct pt_regs * regs, long err) printk("\n"); if (notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV) != - NOTIFY_STOP) + NOTIFY_STOP) { show_registers(regs); + /* Executive summary in case the oops scrolled away */ + esp = (unsigned long) (®s->esp); + savesegment(ss, ss); + if (user_mode(regs)) { + esp = regs->esp; + ss = regs->xss & 0xffff; + } + printk(KERN_EMERG "EIP: [<%08lx>] ", regs->eip); + print_symbol("%s", regs->eip); + printk(" SS:ESP %04x:%08lx\n", ss, esp); + } else regs = NULL; } else