Re: [PATCH] panic: drop the fake trace id from the oops end marker

[Bradley Morgan <brads@mainlining.org>]

On 19 October 2026 15:46:28 BST, Sebastian Andrzej Siewior
<bigeasy@linutronix.de> wrote:
>On 2026-10-04 17:54:19 [+0000], Bradley Morgan wrote:
>> print_oops_end_marker() prints "---[ end trace 0000000000000000
>> ]---". The format pretends each oops has a trace id, but the value
>> has been a hardcoded 0 since the oops id machinery was removed, and
>> nothing prints an opening marker anymore. Nothing in tree parses the
>> id either, the pstore selftest greps for "---[ end trace" without it.
>> Kill the fake id, the format specifier and the 0ULL argument go with
>> it.
>
>Could you please figure out _why_ it is hardcoded to 0? Someone
>requested this with a reason. If you want to remove it, you need to
>ensure that reason is no longer valid.

Nice catch!

uhhh, well it's just always been there I'd assume. Probably for selftests? 

But what's exactly the "benefit" of this? Idk.

>
>> Signed-off-by: Bradley Morgan <brads@mainlining.org>
>> ---
>>  kernel/panic.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/kernel/panic.c b/kernel/panic.c
>> index 213725b612aa..0436a92318ed 100644
>> --- a/kernel/panic.c
>> +++ b/kernel/panic.c
>> @@ -1051,7 +1051,7 @@ void oops_enter(void)
>>  
>>  static void print_oops_end_marker(void)
>>  {
>> -	pr_warn("---[ end trace %016llx ]---\n", 0ULL);
>> +	pr_warn("---[ end trace ]---\n");
>>  }
>>  
>>  /*
>
>Sebastian

--- Thanks!
"I'm not a very positive person" - Linus torvalds