xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[POWERPC] print backtrace when entering xmon

Browse Source 
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>
This commit is contained in:
Olaf Hering
2006-09-08 16:29:21 +02:00
committed by Paul Mackerras
parent 87fd7724d4
commit 26c8af5f01
3 changed files with 16 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/powerpc/kernel/setup-common.c
View File

@@ -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;
}