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[SCM] GNU Mach branch, master, updated. v1.8-411-gdf10aa69

From: Samuel Thibault
Subject: [SCM] GNU Mach branch, master, updated. v1.8-411-gdf10aa69
Date: Sun, 27 Nov 2022 16:13:09 -0500 (EST)

This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU Mach".

The branch, master has been updated
       via  df10aa6983e86b688e4a9b4f30db6d07ad540964 (commit)
      from  97314ab115206137018b0cd7196ce404ceee136c (commit)

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- Log -----------------------------------------------------------------
commit df10aa6983e86b688e4a9b4f30db6d07ad540964
Author: Samuel Thibault <>
Date:   Sun Nov 27 22:10:10 2022 +0100

    vm_wire_all: Fix vm_map_protect case
    If a "wire_required" process calls vm_map_protect(0), the
    memory gets unwired as expected. But if the process then calls
    vm_map_protect(VM_PROT_READ) again, we need to wire that memory.
    (This happens to be exactly what glibc does for its heap)
    This fixes Hurd hangs on lack of memory, during which mach was swapping
    pieces of mach-defpager out.


Summary of changes:
 vm/vm_map.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

GNU Mach

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