https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=e0cdd462f18887c15e8af7861b7df6bc0f84c52d

commit e0cdd462f18887c15e8af7861b7df6bc0f84c52d
Author: Corinna Vinschen <[email protected]>
Date:   Tue May 25 16:55:38 2021 +0200

    Cygwin: POSIX msg queues: allocate section views top down
    
    Signed-off-by: Corinna Vinschen <[email protected]>

Diff:
---
 winsup/cygwin/fhandler_mqueue.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/winsup/cygwin/fhandler_mqueue.cc b/winsup/cygwin/fhandler_mqueue.cc
index 9114d8f32..c450c0337 100644
--- a/winsup/cygwin/fhandler_mqueue.cc
+++ b/winsup/cygwin/fhandler_mqueue.cc
@@ -173,7 +173,7 @@ fhandler_mqueue::_mqinfo (SIZE_T filesize, mode_t mode, int 
flags,
 
   status = NtMapViewOfSection (mqinfo ()->mqi_sect, NtCurrentProcess (),
                               &mptr, 0, filesize, NULL, &filesize,
-                              ViewShare, 0, PAGE_READWRITE);
+                              ViewShare, MEM_TOP_DOWN, PAGE_READWRITE);
   if (!NT_SUCCESS (status))
     goto err;
 
@@ -367,7 +367,7 @@ fhandler_mqueue::_dup (HANDLE parent, fhandler_mqueue *fhc)
        __leave;
       status = NtMapViewOfSection (mqinfo ()->mqi_sect, NtCurrentProcess (),
                                   &mptr, 0, filesize, NULL, &filesize,
-                                  ViewShare, 0, PAGE_READWRITE);
+                                  ViewShare, MEM_TOP_DOWN, PAGE_READWRITE);
       if (!NT_SUCCESS (status))
        api_fatal ("Mapping message queue failed in fork, status 0x%x\n",
                   status);

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