On Fri, Apr 25, 2008 at 3:44 PM, Jan Kiszka <[EMAIL PROTECTED]> wrote:
>
> Gilles Chanteperdrix wrote:
>  > On Fri, Apr 25, 2008 at 2:59 PM, Jan Kiszka <[EMAIL PROTECTED]> wrote:
>  >> Hi,
>  >>
>  >>  trunk check-in #3369 did not just remove some "questionable critical
>  >>  sections", it also happen to fix two ugly bugs in the POSIX skin: The
>  >>  user was not able to pass NULL attributes down to mutex_init and
>  >>  cond_init. Find a backport of that patch for 2.4.x attached.
>  >
>  > I am using pthread_mutex_init and pthread_cond_init from user-space
>  > with NULL attributes with pre 2.4 versions all the time, and never had
>  > any problem.
>
>  Maybe a x86-64 issue: __xn_access_ok() triggers here when you stuff in a
>  NULL pointer.

Ok. I had a look at the code now, and understood your patch. We simply
have been lucky until now that xn_access_ok did not fail with NULL
pointers.

-- 
 Gilles

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