#16650: MMAP: partial memory page modifications written out causing PTS test
fail
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Reporter: cocobean | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: System/POSIX | Version: R1/Development
Keywords: mmap, posix | Blocked By:
Blocking: | Platform: All
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Implementation performs mapping operations over whole pages. Thus, while
the argument len, need not meet a size or alignment constraint, the
implementation shall include, in any mapping operation, any partial page
specified by the range [pa,pa+len). The system shall always zero-fill ny
partial page at the end of an object. Further, the system shall never
write out any modified portions of the last page of an object which are
beyond its end. Tested on Haiku R1B2 x86 (+123).
Failed result: Modification of the partial page at end of object is
written out.
Ref:
https://github.com/haiku/open_posix_testsuite/blob/from_haiku_trunk/conformance/interfaces/mmap/11-4.c
https://github.com/haiku/open_posix_testsuite/blob/from_haiku_trunk/conformance/interfaces/mmap/11-5.c
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Ticket URL: <https://dev.haiku-os.org/ticket/16650>
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The Haiku operating system.
