diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c index 91375e435700..c005cad06fde 100644 --- a/sys/kern/kern_exit.c +++ b/sys/kern/kern_exit.c @@ -1177,6 +1177,7 @@ kern_wait6(struct thread *td, idtype_t idtype, id_t id, int *status, struct proc *p, *q; pid_t pid; int error, nfound, ret; + bool report; AUDIT_ARG_VALUE((int)idtype); /* XXX - This is likely wrong! */ AUDIT_ARG_PID((pid_t)id); /* XXX - This may be wrong! */ @@ -1228,36 +1229,38 @@ kern_wait6(struct thread *td, idtype_t idtype, id_t id, int *status, nfound++; PROC_LOCK_ASSERT(p, MA_OWNED); - if ((options & (WTRAPPED | WUNTRACED)) != 0) - PROC_SLOCK(p); - if ((options & WTRAPPED) != 0 && - (p->p_flag & P_TRACED) != 0 && - (p->p_flag & (P_STOPPED_TRACE | P_STOPPED_SIG)) != 0 && - p->p_suspcount == p->p_numthreads && - (p->p_flag & P_WAITED) == 0) { + (p->p_flag & P_TRACED) != 0) { + PROC_SLOCK(p); + report = + ((p->p_flag & (P_STOPPED_TRACE | P_STOPPED_SIG)) && + p->p_suspcount == p->p_numthreads && + (p->p_flag & P_WAITED) == 0); PROC_SUNLOCK(p); + if (report) { CTR4(KTR_PTRACE, "wait: returning trapped pid %d status %#x " "(xstat %d) xthread %d", p->p_pid, W_STOPCODE(p->p_xsig), p->p_xsig, p->p_xthread != NULL ? p->p_xthread->td_tid : -1); - report_alive_proc(td, p, siginfo, status, options, - CLD_TRAPPED); - return (0); + report_alive_proc(td, p, siginfo, status, + options, CLD_TRAPPED); + return (0); + } } if ((options & WUNTRACED) != 0 && - (p->p_flag & P_STOPPED_SIG) != 0 && - p->p_suspcount == p->p_numthreads && - (p->p_flag & P_WAITED) == 0) { + (p->p_flag & P_STOPPED_SIG) != 0) { + PROC_SLOCK(p); + report = (p->p_suspcount == p->p_numthreads && + ((p->p_flag & P_WAITED) == 0)); PROC_SUNLOCK(p); - report_alive_proc(td, p, siginfo, status, options, - CLD_STOPPED); - return (0); + if (report) { + report_alive_proc(td, p, siginfo, status, + options, CLD_STOPPED); + return (0); + } } - if ((options & (WTRAPPED | WUNTRACED)) != 0) - PROC_SUNLOCK(p); if ((options & WCONTINUED) != 0 && (p->p_flag & P_CONTINUED) != 0) { report_alive_proc(td, p, siginfo, status, options,