From: Alexander Nyberg Date: Thu, 23 Jun 2005 07:09:13 +0000 (-0700) Subject: [PATCH] avoid resursive oopses X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=df164db5fd16888ddbe2a63a47b2f6dda9a428b5;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git [PATCH] avoid resursive oopses Prevent recursive faults in do_exit() by leaving the task alone and wait for reboot. This may allow a more graceful shutdown and possibly save the original oops. Signed-off-by: Alexander Nyberg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/kernel/exit.c b/kernel/exit.c index 2ef2ad54020..c2bdf6fb61a 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -793,6 +793,17 @@ fastcall NORET_TYPE void do_exit(long code) ptrace_notify((PTRACE_EVENT_EXIT << 8) | SIGTRAP); } + /* + * We're taking recursive faults here in do_exit. Safest is to just + * leave this task alone and wait for reboot. + */ + if (unlikely(tsk->flags & PF_EXITING)) { + printk(KERN_ALERT + "Fixing recursive fault but reboot is needed!\n"); + set_current_state(TASK_UNINTERRUPTIBLE); + schedule(); + } + tsk->flags |= PF_EXITING; /*