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sys.kern.pdeathsig.signal_delivered_ptrace: fix startup.

Description

sys.kern.pdeathsig.signal_delivered_ptrace: fix startup.

Inform D that C executed procctl(PROC_PDEATHSIG_CTL). Otherwise D
might allow B to exit before C is set up to receive a signal on the
parent exit. In this case, C waits forever for the signal and test
hangs.

PR: 237657
Reported and tested by: lwhsu
Sponsored by: The FreeBSD Foundation
MFC after: 1 week

Details

Committed
kibMon, Aug 19, 9:33 AM
Parents
rS351210: sys.kern.pdeathsig.signal_delivered_ptrace: fix debugger detach
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