[PATCH 2/4] kern: make kmem_error panic

[Justus Winter]

The slab allocator relies on the fact that kmem_cache_error does not
return.  Previously, kmem_error was using printf.  Use panic instead.

Found using the Clang Static Analyzer.

* kern/slab.c (kmem_error): Use panic instead of printf.
---
 kern/slab.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kern/slab.c b/kern/slab.c
index adf07e7..f40afa1 100644
--- a/kern/slab.c
+++ b/kern/slab.c
@@ -289,8 +289,8 @@ vm_map_t kmem_map = &kmem_map_store;
 static unsigned long kmem_gc_last_tick;
 
 #define kmem_error(format, ...)                         \
-    printf("mem: error: %s(): " format "\n", __func__,  \
-           ## __VA_ARGS__)
+    panic("mem: error: %s(): " format "\n", __func__,   \
+          ## __VA_ARGS__)
 
 #define kmem_warn(format, ...)                              \
     printf("mem: warning: %s(): " format "\n", __func__,    \
-- 
1.8.5.2