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, 3 insertions, 0 deletions

diff --git a/lib/libpthread/thread/thr_init.c b/lib/libpthread/thread/thr_init.c
index 626a134..804462c 100644
--- a/lib/libpthread/thread/thr_init.c
+++ b/lib/libpthread/thread/thr_init.c
@@ -264,6 +264,9 @@ _libpthread_init(struct pthread *curthread)
 		PANIC("Can't allocate initial kseg.");
 	_kse_initial->k_schedq = &_kse_initial->k_kseg->kg_schedq;
 
+	TAILQ_INSERT_TAIL(&_kse_initial->k_kseg->kg_kseq, _kse_initial, k_kgqe);
+	_kse_initial->k_kseg->kg_ksecount = 1;
+
 	/* Set the initial thread. */
 	if (curthread == NULL) {
 		/* Create and initialize the initial thread. */