Re: Unnecessary limitation on munmap?

Hi Mark, On 12/21/2024 5:15 PM, Mark Geisert wrote: Hi Ken, On 12/21/2024 1:42 PM, Ken Brown wrote: I'm wondering why munmap insists on operating with chunks of size 64k instead of pages of size 4k.  In other words, what would go wrong if we did the following: --- a/winsup/cygwin/mm/mmap.cc

Re: Unnecessary limitation on munmap?

Hi Ken, On 12/21/2024 1:42 PM, Ken Brown wrote: I'm wondering why munmap insists on operating with chunks of size 64k instead of pages of size 4k.  In other words, what would go wrong if we did the following: --- a/winsup/cygwin/mm/mmap.cc +++ b/winsup/cygwin/mm/mmap.cc @@ -1143,7 +1143,7 @@

Unnecessary limitation on munmap?

I'm wondering why munmap insists on operating with chunks of size 64k instead of pages of size 4k. In other words, what would go wrong if we did the following: --- a/winsup/cygwin/mm/mmap.cc +++ b/winsup/cygwin/mm/mmap.cc @@ -1143,7 +1143,7 @@ munmap (void *addr, size_t len) set_errno (