diff options
| author | Feng Tang <feng.tang@linux.alibaba.com> | 2025-07-03 10:10:03 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-07-19 19:08:24 -0700 |
| commit | 9743d12d0c63968320ece31e2e48723f3235be6d (patch) | |
| tree | 9cee774a29e1224d5262e452e189ec1c81942891 /kernel/panic.c | |
| parent | d747755917bf8ae08f490c3fe7d8e321afab8127 (diff) | |
panic: add 'panic_sys_info=' setup option for kernel cmdline
'panic_sys_info=' sysctl interface is already added for runtime setting.
Add counterpart kernel cmdline option for boottime setting.
Link: https://lkml.kernel.org/r/20250703021004.42328-5-feng.tang@linux.alibaba.com
Signed-off-by: Feng Tang <feng.tang@linux.alibaba.com>
Suggested-by: Petr Mladek <pmladek@suse.com>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: "Paul E . McKenney" <paulmck@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel/panic.c')
| -rw-r--r-- | kernel/panic.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/panic.c b/kernel/panic.c index d7aa427dc23c..d9d4fcd5e318 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -143,6 +143,15 @@ static __init int kernel_panic_sysctls_init(void) late_initcall(kernel_panic_sysctls_init); #endif +/* The format is "panic_sys_info=tasks,mem,locks,ftrace,..." */ +static int __init setup_panic_sys_info(char *buf) +{ + /* There is no risk of race in kernel boot phase */ + panic_print = sys_info_parse_param(buf); + return 1; +} +__setup("panic_sys_info=", setup_panic_sys_info); + static atomic_t warn_count = ATOMIC_INIT(0); #ifdef CONFIG_SYSFS |