Description of problem:
Not sure. seems to happen after I log into MATE desktop after a while.

Version-Release number of selected component:
PackageKit-1.0.3-2.fc21

Additional info:
reporter:       libreport-2.3.0
backtrace_rating: 4
cmdline:        /usr/libexec/packagekitd
crash_function: __strncasecmp_l_sse2
executable:     /usr/libexec/packagekitd
kernel:         3.17.3-300.fc21.x86_64
runlevel:       N 5
type:           CCpp
uid:            0

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 __strncasecmp_l_sse2 at ../sysdeps/x86_64/strcmp.S:209
 #1 hif_source_is_local at hif-source.c:386
 #2 hif_repos_source_parse_id at hif-repos.c:359
 #3 hif_repos_source_parse at hif-repos.c:416
 #4 hif_repos_refresh at hif-repos.c:453
 #5 hif_repos_get_sources at hif-repos.c:505
 #6 hif_context_setup at hif-context.c:1231
 #7 pk_backend_initialize at pk-backend-hif.c:234
 #8 pk_backend_load at pk-backend.c:599
 #9 pk_engine_load_backend at pk-engine.c:935