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Re: [gpsd-dev] regression tests blow up on os x 10.9 with shm issues

From: Greg Troxel
Subject: Re: [gpsd-dev] regression tests blow up on os x 10.9 with shm issues
Date: Fri, 13 Feb 2015 09:42:26 -0500
User-agent: Gnus/5.130006 (Ma Gnus v0.6) Emacs/24.4 (berkeley-unix)

"Eric S. Raymond" <address@hidden> writes:

>> I am seeing one leftover shm segment after running tests.  Not a huge
>> problem, but really there should not be any.
> I can think of a good reason for one to be left over. Apparently shmctl(2)
> marks segments for deletion but it's up to the kernel to decide when the
> memory is actually garbage-collected - that's what the man page description
> implies, anyway.

NetBSD man page says:

     IPC_RMID   Remove the shared memory segment specified by shmid and
                destroy the data associated with it.  Only the super-user or a
                process with an effective uid equal to the shm_perm.cuid or
                shm_perm.uid values in the data structure associated with the
                segment can do this.

which matches

but my latest run did not leave one lying around.  So maybe this was
just one odd test that got fixed.

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