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Re: For review: nptl(7) man page
- From: "Michael Kerrisk (man-pages)" <mtk dot manpages at gmail dot com>
- To: Nicholas Miell <nmiell at gmail dot com>, linux-man at vger dot kernel dot org
- Cc: mtk dot manpages at gmail dot com, libc-alpha at sourceware dot org
- Date: Fri, 24 Jul 2015 09:57:46 +0200
- Subject: Re: For review: nptl(7) man page
- Authentication-results: sourceware.org; auth=none
- References: <550ED3F4 dot 1080403 at gmail dot com> <550F363B dot 801 at gmail dot com>
On 03/22/2015 10:38 PM, Nicholas Miell wrote:
> On 03/22/2015 07:38 AM, Michael Kerrisk (man-pages) wrote:
>> Hello all,
>>
>> I wrote a short man page documented some of the details of
>> NPTL that might affect application developers. Review comments
>> would be most welcome.
>>
>> Thanks,
>>
>> Michael
>
> POSIX specifies that process-shared pthread_mutex_t's can be manipulated
> by independent processes, however the AMD64 and i386 versions of the
> mutex structures are incompatible and cannot be shared.
>
> This might be true of the other supposedly sharable primitives, I never
> bothered to check the rest when I first noticed the problem with mutexes.
Nicholas,
Can you provide pointers to further information on this topic?
Cheers,
Michael
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/