In thr_exit() and kthread_exit(), only remove thread from

hash if it can directly exit, otherwise let exit1() do it.
The change should be in r213950, but for unknown reason,
it was lost.

1 files changed, 5 insertions, 1 deletions

diff --git a/sys/kern/kern_kthread.c b/sys/kern/kern_kthread.c
index 9ab0922..be40c80 100644
--- a/sys/kern/kern_kthread.c
+++ b/sys/kern/kern_kthread.c
@@ -34,6 +34,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/mutex.h>
 #include <sys/proc.h>
 #include <sys/resourcevar.h>
+#include <sys/rwlock.h>
 #include <sys/signalvar.h>
 #include <sys/sx.h>
 #include <sys/unistd.h>
@@ -315,17 +316,20 @@ kthread_exit(void)
 
 	p = curthread->td_proc;
 
-	tidhash_remove(curthread);
 
 	/* A module may be waiting for us to exit. */
 	wakeup(curthread);
+	rw_wlock(&tidhash_lock);
 	PROC_LOCK(p);
 	if (p->p_numthreads == 1) {
 		PROC_UNLOCK(p);
+		rw_wunlock(&tidhash_lock);
 		kproc_exit(0);
 
 		/* NOTREACHED. */
 	}
+	LIST_REMOVE(curthread, td_hash);
+	rw_wunlock(&tidhash_lock);
 	PROC_SLOCK(p);
 	thread_exit();
 }