On Mon, Jul 26, 2010 at 2:55 AM, Cyril Hrubis <[email protected]> wrote:
> Hi!
>> I just now noticed the PTHREAD_PRIO_PROTECT portion of the patch.
>> The testcase passes now (I can vouch for it passing on FreeBSD), but
>> none of the POSIX specs I read mention anything about this being a
>> hard requirement. So something needs to be figured out as far as
>> whether or not the specs are broken, or this an issue with the
>> pthreads implementation on both FreeBSD and Linux.
>
> Yes, I was unable to find this in the posix too. I consulted our glibc
> maintainer and all I've got was "it doesn't work without
> PTHREAD_PRIO_PROTECT". And even free pages from O'Reilly "A POSIX
> Standart for Better Mutiprocessing" seems to suggest that. I'll try to
> get that book as it seems to be only source of documentation for
> realtime threads I know about. Anyway it does make sense to return
> priority only for mutexes that can be prioritized.
I just committed a slightly modified version of your III patch.
I'll have to chase down the POSIX people about this discrepancy...
-Garrett
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