Fix typo AIXPPCX -> AIXPPC #7292
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On AIX, this typo disables code that prevents upcall_handler from collecting thread data when upcall_handler is unregistered. Collecting data after upcall_handler is unregistered might cause corrupt memory to be passed through siginfo and lead to crashes. More context: On AIX, a signal can can be unavailable to sigpending/sigwait but not yet have been delivered to a thread. As a result, it is not guaranteed that SIG_SUSPEND won't be delivered after upcall_handler is unregistered. Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
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jenkins build all |
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Only known and unrelated failures are seen: |
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@dsouzai Can you please review and merge these changes? |
dsouzai
approved these changes
Mar 25, 2024
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On AIX, this typo disables code that prevents upcall_handler from
collecting thread data when upcall_handler is unregistered. Collecting
data after upcall_handler is unregistered might cause corrupt memory
to be passed through siginfo and lead to crashes.
More context:
On AIX, a signal can can be unavailable to sigpending/sigwait but
not yet have been delivered to a thread. As a result, it is not
guaranteed that SIG_SUSPEND won't be delivered after upcall_handler
is unregistered.