On Mar 22, 2006, at 4:13 PM, David S. Miller wrote:
From: Mark Rustad <[email protected]>
Date: Wed, 22 Mar 2006 16:10:33 -0600
I seem to be having trouble using hugetlbfs with kernel 2.6.16. I
have a small test program that worked with 2.6.16-rc5, but fails with
2.6.16-rc6 or the release. The program is below. Given a path to a
file on a hugetlbfs, it opens/creates the file, mmaps it and tries to
access the first word. On 2.6.16-rc5, it works. On 2.6.16, it hangs
page-faulting until it is killed.
On what platform? Things like hugetlb and address space layout
(you're requesting a specific mmap() address I noticed) are very
platform specific.
This is on a Xeon, without PAE with the 1GB no-highmem memory map, in
all three cases. This is a 32-bit kernel running on a Nacona CPU. I
also had an unmap call over the range to be mmap-ed, but the failure/
success cases were the same, so I removed it to reduce the test
program further.
--
Mark Rustad, [email protected]
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