teuthology/task: decode str returned from PIPE

which is bytes, and should be decoded before calling `split(a_str)`

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/teuthology/task/internal/__init__.py b/teuthology/task/internal/__init__.py
index ad590e96a6064dc186c38af1c037849ede96be95..52a24df265c49093895afd46d939d5784b60ad10 100644 (file)
--- a/teuthology/task/internal/__init__.py
+++ b/teuthology/task/internal/__init__.py
@@ -8,6 +8,7 @@ import logging
 import os
 import time
 import yaml
+import six
 import subprocess
 
 import teuthology.lock.ops
@@ -308,7 +309,7 @@ def fetch_binaries_for_coredumps(path, remote):
             # Parse file output to get program, Example output:
             # 1422917770.7450.core: ELF 64-bit LSB core file x86-64, version 1 (SYSV), SVR4-style, \
             # from 'radosgw --rgw-socket-path /home/ubuntu/cephtest/apache/tmp.client.0/fastcgi_soc'
-            dump_program = dump_out.split("from '")[1].split(' ')[0]
+            dump_program = six.ensure_str(dump_out).split("from '")[1].split(' ')[0]
 
             # Find path on remote server:
             remote_path = remote.sh(['which', dump_program]).rstrip()