4 files changed, 13 insertions, 4 deletions
diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c
index 24c7e74..3cb48bf 100644
--- a/sys/kern/kern_exit.c
+++ b/sys/kern/kern_exit.c
@@ -112,7 +112,6 @@ exit1(struct proc *td)
     unload_td(td);
     vm_unmap(pcbp->addrsp, td->stack_base, PROC_STACK_SIZE);
     vm_free_frame(stack, PROC_STACK_PAGES);
-
     pmap_destroy_vas(pcbp->addrsp);
 
     /*
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_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();
 }
 
diff --git a/sys/kern/kern_syslog.c b/sys/kern/kern_syslog.c
index 10bf348..665734d 100644
--- a/sys/kern/kern_syslog.c
+++ b/sys/kern/kern_syslog.c
@@ -101,11 +101,11 @@ kprintf(const char *fmt, ...)
         }
     }
 
+    spinlock_acquire(&lock);
     if (use_timestamp) {
         syslog_write(timestamp, strlen(timestamp));
     }
 
-    spinlock_acquire(&lock);
     va_start(ap, fmt);
 
     vkprintf(fmt_p, &ap);