From df9c60beea7c5d6d21c3e9e892f4e97a4bb7b4d8 Mon Sep 17 00:00:00 2001 From: Konstantin Belousov Date: Wed, 27 Mar 2024 14:29:25 +0200 Subject: [PATCH] thread_single(9): decline external requests for traced or debugger-stopped procs (cherry picked from commit 9241ebc796c11cf133c550f188f324bd2c12d89a) --- sys/kern/kern_thread.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sys/kern/kern_thread.c b/sys/kern/kern_thread.c index d8ba94925fe..1586d6c664f 100644 --- a/sys/kern/kern_thread.c +++ b/sys/kern/kern_thread.c @@ -1249,6 +1249,9 @@ thread_single(struct proc *p, int mode) return (1); msleep(&p->p_flag, &p->p_mtx, PCATCH, "thrsgl", 0); } + if ((p->p_flag & (P_STOPPED_SIG | P_TRACED)) != 0 || + (p->p_flag2 & P2_WEXIT) != 0) + return (1); } else if ((p->p_flag & P_HADTHREADS) == 0) return (0); if (p->p_singlethread != NULL && p->p_singlethread != td)