patch for ``` sudo strace -p 1 & sudo kill -KILL 1 # kernel oops !!!! ```

kernel-signal.c.diff

--- kernel/signal.c.org 2013-02-23 10:35:53.025437034 +0900
+++ kernel/signal.c     2013-02-23 10:35:24.816437657 +0900
@@ -2307,6 +2307,9 @@
                                !sig_kernel_only(signr))
                        continue;
 
+               if (current == init_pid_ns.child_reaper)
+                       continue;
+
                if (sig_kernel_stop(signr)) {
                        /*
                         * The default action is to stop all threads in

sudo strace -p 1 & 
sudo kill -KILL 1 # kernel oops !!!! 

linux-3.7.9 
Linux hibomac 3.7.9 #2 SMP Sat Feb 23 02:34:39 JST 2013 x86_64 x86_64 x86_64 GNU/Linux