[SCM] GNU Mach branch, master, updated. v1.8-634-g8cc2ed2e

[Samuel Thibault]

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- Log -----------------------------------------------------------------
commit 8cc2ed2eeca01c46c04682939d0ecd34927cde7b
Author: Sergey Bugaev <bugaevc@gmail.com>
Date:   Thu May 11 22:28:59 2023 +0300

    x86_64: Check for AST when exiting a syscall
    
    ...like it's already done when exiting a trap. This is required, since
    handing a syscall can result in an AST; in particular this happens when
    the current thread is being terminated, which sets AST_TERMINATE and
    expects the thread to never return to userspace.
    
    Fixes a kernel crash upon calling exit () or pthread_exit () in glibc.
    Message-Id: <20230511192859.890693-1-bugaevc@gmail.com>

-----------------------------------------------------------------------

Summary of changes:
 x86_64/locore.S | 28 +++++++++++++++++++++++++---
 1 file changed, 25 insertions(+), 3 deletions(-)


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