Index: sys/kern/kern_proc.c =================================================================== --- sys/kern/kern_proc.c +++ sys/kern/kern_proc.c @@ -389,23 +389,28 @@ struct proc *p; int error; - sx_slock(&allproc_lock); - if (pid <= PID_MAX) { - p = pfind_locked(pid); - if (p == NULL && (flags & PGET_NOTWEXIT) == 0) - p = zpfind_locked(pid); - } else if ((flags & PGET_NOTID) == 0) { - p = pfind_tid_locked(pid); + p = curproc; + if (p->p_pid == pid || curthread->td_tid == pid) { + PROC_LOCK(p); } else { - p = NULL; - } - sx_sunlock(&allproc_lock); - if (p == NULL) - return (ESRCH); - if ((flags & PGET_CANSEE) != 0) { - error = p_cansee(curthread, p); - if (error != 0) - goto errout; + sx_slock(&allproc_lock); + if (pid <= PID_MAX) { + p = pfind_locked(pid); + if (p == NULL && (flags & PGET_NOTWEXIT) == 0) + p = zpfind_locked(pid); + } else if ((flags & PGET_NOTID) == 0) { + p = pfind_tid_locked(pid); + } else { + p = NULL; + } + sx_sunlock(&allproc_lock); + if (p == NULL) + return (ESRCH); + if ((flags & PGET_CANSEE) != 0) { + error = p_cansee(curthread, p); + if (error != 0) + goto errout; + } } if ((flags & PGET_CANDEBUG) != 0) { error = p_candebug(curthread, p);