On Tue, May 13, 2008 at 11:10 AM, Jan Kiszka <[EMAIL PROTECTED]> wrote:
> Gilles Chanteperdrix wrote:
>  > On Tue, May 13, 2008 at 10:26 AM, Jan Kiszka <[EMAIL PROTECTED]> wrote:
>  >>  @@ -1236,6 +1236,9 @@ void xnpod_delete_thread(xnthread_t *thr
>  >>                 xnthread_cleanup_tcb(thread);
>  >>
>  >>                 xnarch_finalize_no_switch(xnthread_archtcb(thread));
>  >>  +
>  >>  +               if (xnthread_test_state(sched->runthread, XNROOT))
>  >>  +                       xnfreesync();
>  >>         }
>  >
>  > No, this does not look good. The point of deferring TCB freeing is
>  > that the TCB will be accessed shortly after it is freed.
>
>  By whom in this case? The thread was not active anymore. IIRC, the
>  use-after-release issue was related to self-deletions.

I do not remember the issue precisely, I know that it was related to
thread deletion hooks. The XNARCH_WANT_UNLOCKED_CTXSW complicated the
issue further.

-- 
 Gilles

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