Re: [PATCH] fix send_sigqueue() vs thread exit race

On Sun, 2005-08-21 at 14:41 +0400, Oleg Nesterov wrote:
> If not:
> 
> >  timer event
> >         timr->it_process references a freed structure
> > 
> 
> No, create_timer() does get_task_struct(timr->it_process), this
> task may be EXIT_DEAD now, but the task_struct itself is valid,
> and it's ->flags has PF_EXITING flag.

Right, did not think about that.

tglx


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References:
- 2.6.13-rc6-rt9
  - From: Ingo Molnar <[email protected]>
- [PATCH 2.6.13-rc6-rt9] PI aware dynamic priority adjustment
  - From: Thomas Gleixner <[email protected]>
- [PATCH] fix send_sigqueue() vs thread exit race
  - From: Oleg Nesterov <[email protected]>
- Re: [PATCH] fix send_sigqueue() vs thread exit race
  - From: Thomas Gleixner <[email protected]>
- Re: [PATCH] fix send_sigqueue() vs thread exit race
  - From: Oleg Nesterov <[email protected]>

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