diff options
| author | Olaf Hering <olaf@aepfle.de> | 2006-09-08 16:29:21 +0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-09-13 18:39:53 +1000 |
| commit | 26c8af5f01dfb91f709cc2ba07fb650949aae13e (patch) | |
| tree | dbaa11641da7348bb2fbde3c75429449c7ca4104 /arch/powerpc/kernel | |
| parent | 87fd7724d4022913ae8dbee3ed55cd04f2c316a6 (diff) | |
[POWERPC] print backtrace when entering xmon
xmon does not print a backtrace per default. This is bad on systems with
USB keyboard, the most needed info about the crash is lost.
print a backtrace during the very first xmon entry.
Booting with xmon=nobt disables the autobacktrace functionality.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/setup-common.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index d57930d86fa..465e7435efb 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -441,6 +441,8 @@ void __init smp_setup_cpu_maps(void) int __initdata do_early_xmon; #ifdef CONFIG_XMON +extern int xmon_no_auto_backtrace; + static int __init early_xmon(char *p) { /* ensure xmon is enabled */ @@ -449,6 +451,8 @@ static int __init early_xmon(char *p) xmon_init(1); if (strncmp(p, "off", 3) == 0) xmon_init(0); + if (strncmp(p, "nobt", 4) == 0) + xmon_no_auto_backtrace = 1; if (strncmp(p, "early", 5) != 0) return 0; } |