KASSERT that the ps_single proc has P_SUSPSINGLE cleared.

Requested by kettenis@ and guenther@

diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c
index 51879e9..a0d73cc 100644 (file)
--- a/sys/kern/kern_sig.c
+++ b/sys/kern/kern_sig.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: kern_sig.c,v 1.333 2024/07/22 09:43:47 claudio Exp $  */
+/*     $OpenBSD: kern_sig.c,v 1.334 2024/07/24 15:31:08 claudio Exp $  */
 /*     $NetBSD: kern_sig.c,v 1.54 1996/04/22 01:38:32 christos Exp $   */
 
 /*
@@ -2164,6 +2164,7 @@ single_thread_set(struct proc *p, int flags)
                panic("single_thread_mode = %d", mode);
 #endif
        }
+       KASSERT((p->p_flag & P_SUSPSINGLE) == 0);
        pr->ps_single = p;
        pr->ps_singlecnt = pr->ps_threadcnt;
 
@@ -2233,6 +2234,7 @@ single_thread_wait(struct process *pr, int recheck)
                if (!recheck)
                        break;
        }
+       KASSERT((pr->ps_single->p_flag & P_SUSPSINGLE) == 0);
        mtx_leave(&pr->ps_mtx);
 
        return wait;