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Date: Wed, 21 Oct 2009 03:41:14 +0200 (CEST)
From: Alexander Best <alexbestms@math.uni-muenster.de>
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Subject: mmap(2) segaults with certain len values and MAP_ANON|MAP_FIXED
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hi there,

just a little mmap(2) related question. running the following code causes a
segfault:

mmap( (void*)0x1000, 0x80047000, PROT_NONE, MAP_ANON|MAP_FIXED, -1, 0 );

while the following doesn't:

mmap( (void*)0x1000, 0xffffffff, PROT_NONE, MAP_ANON|MAP_FIXED, -1, 0 );

is this a known problem? seems reproducible on all branches.

cheers
alex

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