lkml.org 
[lkml]   [2019]   [Dec]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] kernel/exit: do panic earlier to get coredump if global init task exit
On 12/12, qiwuchen55@gmail.com wrote:
>
> Of course testing signal_group_exit() is not sufficient. It is still
> possible that this is someone calling exit(2)

Or execve(), so

> @@ -785,6 +781,9 @@ void __noreturn do_exit(long code)
> panic("Aiee, killing interrupt handler!");
> if (unlikely(!tsk->pid))
> panic("Attempted to kill the idle task!");
> + if (unlikely(is_global_init(tsk) &&
> + (signal_group_exit(tsk->signal) || thread_group_empty(tsk))))
> + panic("Attempted to kill init! exitcode=0x%08lx\n", code);

so this can panic() if one of init's threads does does exec.

Oleg.

\
 
 \ /
  Last update: 2019-12-12 10:51    [W:0.040 / U:14.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site