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Protect p_stat with sched_lock.

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John Baldwin 2000-12-01 16:59:02 +00:00
parent d3bc44f91c
commit 2925cbe569
1 changed files with 5 additions and 0 deletions
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5
sys/kern/kern_exit.c
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@ -439,7 +439,10 @@ loop:
continue;
nfound++;
mtx_enter(&sched_lock, MTX_SPIN);
if (p->p_stat == SZOMB) {
mtx_exit(&sched_lock, MTX_SPIN);
/* charge childs scheduling cpu usage to parent */
if (curproc->p_pid != 1) {
curproc->p_estcpu =
@ -542,6 +545,7 @@ loop:
}
if (p->p_stat == SSTOP && (p->p_flag & P_WAITED) == 0 &&
(p->p_flag & P_TRACED || uap->options & WUNTRACED)) {
mtx_exit(&sched_lock, MTX_SPIN);
p->p_flag |= P_WAITED;
q->p_retval[0] = p->p_pid;
#ifdef COMPAT_43
@ -558,6 +562,7 @@ loop:
error = 0;
return (error);
}
mtx_exit(&sched_lock, MTX_SPIN);
}
if (nfound == 0)
return (ECHILD);