Date: Wed, 12 Nov 2008 14:45:52 -0500 From: Mikhail Teterin <mi+mill@aldan.algebra.com> To: Kostik Belousov <kostikbel@gmail.com> Cc: stable@freebsd.org Subject: Re: dlopen-ing a library with OpenMP by a non-OpenMP process Message-ID: <491B3270.5080402@aldan.algebra.com> In-Reply-To: <20081112194350.GJ47073@deviant.kiev.zoral.com.ua> References: <491B1BD2.4050903@aldan.algebra.com> <20081112194350.GJ47073@deviant.kiev.zoral.com.ua>
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Sent by Kostik Belousov:
> On Wed, Nov 12, 2008 at 01:09:22PM -0500, Mikhail Teterin wrote:
>
>> Hello!
>>
>> Currently, when a program built without OpenMP (-fopenmp) is trying to
>> dlopen a library, built with the feature, the result is a crash from
>> "bad system call":
>>
>> #0 0x00000008009a223c in ksem_init () from /lib/libc.so.7
>> #1 0x0000000800998a8f in sem_init () from /lib/libc.so.7
>> #2 0x00000008011a6537 in omp_get_nested () from /usr/lib/libgomp.so.1
>> #3 0x00000008011a3466 in ?? () from /usr/lib/libgomp.so.1
>> #4 0x0000000000000002 in ?? ()
>> #5 0x00000008005072b2 in dlsym () from /libexec/ld-elf.so.1
>> #6 0x0000000800507cd2 in dlopen () from /libexec/ld-elf.so.1
>> ...
>>
> Try "kldload sem".
>
Uhm... That worked... I see... Shouldn't sem_init be nicer about it,
though? Thanks,
-mi
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