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If thread singler wants to terminate other threads, make sure it includes

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all threads except itself.

Obtained from: julian
This commit is contained in:
davidxu 2004-06-18 06:15:21 +00:00
parent f7aefb848d
commit 673364f0ef
1 changed files with 16 additions and 2 deletions
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18
sys/kern/kern_thread.c
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@ -849,6 +849,7 @@ thread_single(int force_exit)
struct thread *td;
struct thread *td2;
struct proc *p;
int remaining;
td = curthread;
p = td->td_proc;
@ -870,7 +871,11 @@ thread_single(int force_exit)
p->p_flag |= P_STOPPED_SINGLE;
mtx_lock_spin(&sched_lock);
p->p_singlethread = td;
while ((p->p_numthreads - p->p_suspcount) != 1) {
if (force_exit == SINGLE_EXIT)
remaining = p->p_numthreads;
else
remaining = p->p_numthreads - p->p_suspcount;
while (remaining != 1) {
FOREACH_THREAD_IN_PROC(p, td2) {
if (td2 == td)
continue;
@ -898,10 +903,15 @@ thread_single(int force_exit)
}
}
}
if (force_exit == SINGLE_EXIT)
remaining = p->p_numthreads;
else
remaining = p->p_numthreads - p->p_suspcount;
/*
* Maybe we suspended some threads.. was it enough?
*/
if ((p->p_numthreads - p->p_suspcount) == 1)
if (remaining == 1)
break;
/*
@ -914,6 +924,10 @@ thread_single(int force_exit)
mtx_unlock_spin(&sched_lock);
PROC_LOCK(p);
mtx_lock_spin(&sched_lock);
if (force_exit == SINGLE_EXIT)
remaining = p->p_numthreads;
else
remaining = p->p_numthreads - p->p_suspcount;
}
if (force_exit == SINGLE_EXIT) {
if (td->td_upcall)