5 files changed, 30 insertions, 5 deletions
diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c
index 670d68c..146c4a9 100644
--- a/sys/kern/init_main.c
+++ b/sys/kern/init_main.c
@@ -35,6 +35,7 @@
 #include <sys/exec.h>
 #include <sys/driver.h>
 #include <sys/panic.h>
+#include <dev/acpi/uacpi.h>
 #include <dev/cons/cons.h>
 #include <dev/acpi/acpi.h>
 #include <machine/cpu.h>
@@ -95,6 +96,8 @@ main(void)
     /* Expose the console to devfs */
     cons_expose();
 
+    uacpi_init();
+
     /* Start scheduler and bootstrap APs */
     md_intoff();
     sched_init();
diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c
index 3cb48bf..d6c9168 100644
--- a/sys/kern/kern_exit.c
+++ b/sys/kern/kern_exit.c
@@ -48,6 +48,7 @@ unload_td(struct proc *td)
     struct pcb *pcbp;
     size_t len;
 
+    sched_detach(td);
     execp = &td->exec;
     auxvalp = &execp->auxval;
     pcbp = &td->pcb;
diff --git a/sys/kern/kern_panic.c b/sys/kern/kern_panic.c
index 950ea8f..7660fff 100644
--- a/sys/kern/kern_panic.c
+++ b/sys/kern/kern_panic.c
@@ -31,6 +31,8 @@
 #include <sys/spinlock.h>
 #include <sys/syslog.h>
 #include <sys/reboot.h>
+#include <machine/cdefs.h>
+#include <machine/cpu.h>
 
 /*
  * Burn and sizzle - the core logic that really ends
@@ -69,8 +71,12 @@ panic(const char *fmt, ...)
 {
     va_list ap;
 
+    /* Shut everything else up */
+    md_intoff();
+    cpu_halt_others();
+
     va_start(ap, fmt);
-    kprintf(OMIT_TIMESTAMP "panic: ");
+    kprintf(OMIT_TIMESTAMP "\npanic: ");
     vkprintf(fmt, &ap);
     bas(true, REBOOT_HALT);
 
diff --git a/sys/kern/kern_sched.c b/sys/kern/kern_sched.c
index 4bbe5a0..8e5c0e9 100644
--- a/sys/kern/kern_sched.c
+++ b/sys/kern/kern_sched.c
@@ -185,7 +185,7 @@ sched_switch(struct trapframe *tf)
     struct cpu_info *ci;
     struct pcb *pcbp;
     struct proc *next_td, *td;
-    bool use_current = true;
+    bool use_current;
 
     ci = this_cpu();
     td = ci->curtd;
@@ -200,6 +200,7 @@ sched_switch(struct trapframe *tf)
      * in the middle of an exit, exec, or whatever.
      */
     do {
+        use_current = true;
         if ((next_td = sched_dequeue_td()) == NULL) {
             sched_oneshot(false);
             return;
@@ -256,10 +257,20 @@ sched_yield(void)
 
     if (td != NULL) {
         td->rested = true;
+        sched_switch(&td->tf);
     }
+}
 
-    sched_oneshot(false);
-    while (td->rested);
+void
+sched_detach(struct proc *td)
+{
+    struct sched_queue *queue;
+
+    spinlock_acquire(&tdq_lock);
+    queue = &qlist[td->priority];
+
+    TAILQ_REMOVE(&queue->q, td, link);
+    spinlock_release(&tdq_lock);
 }
 
 void
diff --git a/sys/kern/kern_spawn.c b/sys/kern/kern_spawn.c
index 2cddd84..cb898dc 100644
--- a/sys/kern/kern_spawn.c
+++ b/sys/kern/kern_spawn.c
@@ -81,7 +81,11 @@ spawn_thunk(void)
 
     path = NULL;
     dynfree(args);
-    execve(cur, &execve_args);
+
+    if (execve(cur, &execve_args) != 0) {
+        pr_error("execve failed, aborting\n");
+        exit1(this_td());
+    }
     __builtin_unreachable();
 }