Messages in this thread | | | Date | Thu, 1 Jul 2004 19:44:22 -0700 | From | William Lee Irwin III <> | Subject | Re: [BUG] hugetlb MAP_PRIVATE mapping vs /dev/zero |
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On Thu, Jul 01, 2004 at 08:29:18PM +0400, Oleg Nesterov wrote: >> We can fix hugetlbfs_file_mmap() or read_zero_pagealigned() >> or both.
On Fri, Jul 02, 2004 at 11:20:12AM +1000, David Gibson wrote: > Err... surely we need to fix both, yes?
No. /dev/zero is innocent. hugetlb is demanding VM_SHARED semantics without actually setting VM_SHARED. /dev/zero tripping over its nonstandard pagetable structure is not something to be dealt with in /dev/zero itself.
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