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| author | Randy Dunlap <rdunlap@xenotime.net> | 2006-04-10 22:53:11 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-11 06:18:33 -0700 |
| commit | 7bee5c0fd2b25d185650cbfa049823e03f648c09 (patch) | |
| tree | f0937f3d2ce67cee54ad8a81d7a6628e21d8e955 | |
| parent | 6cf272acd59e4e7a17b969adcdf413e15754bfe4 (diff) | |
| download | op-kernel-dev-7bee5c0fd2b25d185650cbfa049823e03f648c09.zip op-kernel-dev-7bee5c0fd2b25d185650cbfa049823e03f648c09.tar.gz | |
[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 <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/i386/kernel/traps.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index e385279..2d22f57 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 |
