Add a couple asserts to pthread_cond_foo to ensure the (low-level)

lock level is 0.  Thus far, the threads implementation doesn't use
mutexes or condition variables so the lock level should be 0.

Save the return value when trying to schedule a new thread and
use this to return an error from pthread_create().

Change the max sleep time for an idle KSE to 1 minute from 2 minutes.

Maintain a count of the number of KSEs within a KSEG.

With these changes scope system threads seem to work, but heavy
use of them crash the kernel (supposedly VM bugs).

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/libkse/thread/thr_cond.c b/lib/libkse/thread/thr_cond.c
index c6bffeb..537c264 100644
--- a/lib/libkse/thread/thr_cond.c
+++ b/lib/libkse/thread/thr_cond.c
@@ -373,6 +373,8 @@ _pthread_cond_timedwait(pthread_cond_t * cond, pthread_mutex_t * mutex,
 	int	unlock_mutex = 1;
 	int	seqno;
 
+	THR_ASSERT(curthread->locklevel == 0,
+	    "cv_timedwait: locklevel is not zero!");
 	_thr_enter_cancellation_point(curthread);
 
 	if (abstime == NULL || abstime->tv_sec < 0 || abstime->tv_nsec < 0 ||
@@ -575,6 +577,8 @@ _pthread_cond_signal(pthread_cond_t * cond)
 	struct pthread	*pthread;
 	int		rval = 0;
 
+	THR_ASSERT(curthread->locklevel == 0,
+	    "cv_timedwait: locklevel is not zero!");
 	if (cond == NULL)
 		rval = EINVAL;
        /*
@@ -632,6 +636,8 @@ _pthread_cond_broadcast(pthread_cond_t * cond)
 	struct pthread	*pthread;
 	int		rval = 0;
 
+	THR_ASSERT(curthread->locklevel == 0,
+	    "cv_timedwait: locklevel is not zero!");
 	if (cond == NULL)
 		rval = EINVAL;
        /*