thread_single(9): decline external requests for traced or debugger-stopped procs
9241ebc796c1
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Description

thread_single(9): decline external requests for traced or debugger-stopped procs

Debugger has the powers to cause unbound delay in single-threading,
which then blocks the threaded taskqueue. The reproducer is
truss -f timeout 2 sleep 10.

Reported by: mjg
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D44523

Details

Provenance

kib	Authored on Mar 27 2024, 12:29 PM

Reviewer

markj

Differential Revision

D44523: thread_single(9): decline external requests for traced or debugger-stopped procs

Parents

rG0cade5566091: pkgbase: Remove FreeBSD-ipfilter package

Branches

Unknown

Tags

Unknown

Event Timeline

kib committed rG9241ebc796c1: thread_single(9): decline external requests for traced or debugger-stopped procs (authored by kib).Mar 30 2024, 2:43 PM

kib added an edge: D44523: thread_single(9): decline external requests for traced or debugger-stopped procs.Mar 30 2024, 2:51 PM

markj mentioned this in rG43b4da44118e: ptrace tests: Add a test using PROC_REAP_KILL to kill a traced debuggee.Mar 31 2024, 6:16 PM

kib mentioned this in rGdf9c60beea7c: thread_single(9): decline external requests for traced or debugger-stopped procs.Apr 4 2024, 2:45 AM

kib mentioned this in rGbfafc6a86ddb: thread_single(9): decline external requests for traced or debugger-stopped procs.

kib mentioned this in rG235436d6311e: stop_all_proc(): skip traced or signal-stoped processes.Apr 5 2024, 2:53 PM

markj mentioned this in rG16f6ce3f826b: ptrace tests: Add a test using PROC_REAP_KILL to kill a traced debuggee.Apr 15 2024, 2:06 PM

Changes (1)

Path

Size

sys/

kern/

kern_thread.c

rG9241ebc796c1

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