Version-Release number of selected component:
systemd-222-10.fc23

Additional info:
reporter:       libreport-2.6.3
backtrace_rating: 4
cmdline:        /usr/lib/systemd/systemd-journald
crash_function: ioctl
executable:     /usr/lib/systemd/systemd-journald
global_pid:     21401
kernel:         4.2.7-300.fc23.x86_64
runlevel:       N 5
type:           CCpp
uid:            0

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 ioctl at ../sysdeps/unix/syscall-template.S:84
 #1 btrfs_defrag_fd at src/basic/btrfs-util.c:636
 #2 btrfs_defrag at src/basic/btrfs-util.c:649
 #3 journal_file_open_reliably.constprop.106 at src/journal/journal-file.c:2875
 #4 find_journal.lto_priv.240 at src/journal/journald-server.c:281
 #5 write_to_journal at src/journal/journald-server.c:498
 #6 dispatch_message_real.lto_priv.238 at src/journal/journald-server.c:820
 #7 server_dispatch_message at src/journal/journald-server.c:918
 #8 server_process_syslog_message at src/journal/journald-syslog.c:377
 #9 server_process_datagram at src/journal/journald-server.c:1202