testimage: Exclude wtmp from target-dumper commands

wtmp is filled with binary data which the run_serial command can't cope with.
Catting this results in confusion of the serial interface and potentially large
backlogs of data in the buffers which can hang qemu.

Exclude the problematic files from the command.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes-recipe/testimage.bbclass b/meta/classes-recipe/testimage.bbclass
index 7c56fe9674c88cc425a7d71bc160e110afae0ca4..c6b7a1e142f811ef8bcc062dbf90bc7f510412e4 100644 (file)
--- a/meta/classes-recipe/testimage.bbclass
+++ b/meta/classes-recipe/testimage.bbclass
@@ -121,7 +121,7 @@ testimage_dump_target () {
     netstat -an
     ip address
     # Next command will dump logs from /var/log/
-    find /var/log/ -type f 2>/dev/null -exec echo "====================" \; -exec echo {} \; -exec echo "====================" \; -exec cat {} \; -exec echo "" \;
+    find /var/log/ -type f -name !wtmp* 2>/dev/null -exec echo "====================" \; -exec echo {} \; -exec echo "====================" \; -exec cat {} \; -exec echo "" \;
 }
 
 testimage_dump_monitor () {