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mmap failing


I have a 268MB file open for writing. I close it and then
immediately try to mmap() it, and a get ENOMEM. However I do have the
VM space available and can malloc() the size of the file right after the failure. Also, I have mmap()'ed other similar files in the same program before this, but these had not just been closed.


My initial guess was that it was timing related, but if I wait for 5
seconds and try again I still get the failure.

I wasn't able to duplicate it in a small example since my app has a bunch of threads and is doing other stuff at the same time.

Any suggestions for solutions or workarounds? Maybe strategic use of fsync() ?

Thanks,

Wayne

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