Description of problem: I was creating a btrfs snapshot of the root filesystem which took an unusual amount of time to complete (around 1 minute). Version-Release number of selected component: systemd-219-9.fc22 Additional info: reporter: libreport-2.5.0 backtrace_rating: 4 cmdline: /usr/lib/systemd/systemd-journald crash_function: ftruncate64 executable: /usr/lib/systemd/systemd-journald global_pid: 505 kernel: 4.0.0-0.rc5.git4.1.fc22.x86_64 runlevel: N 5 type: CCpp uid: 0 var_log_messages: [System Logs]:\n-- Logs begin at mar 2015-03-24 22:06:44 CET, end at mar 2015-04-07 21:21:48 CEST. -- Truncated backtrace: Thread no. 1 (10 frames) #0 ftruncate64 at ../sysdeps/unix/syscall-template.S:81 #1 journal_file_post_change at ../src/journal/journal-file.c:1368 #2 journal_file_append_entry.constprop.103 at ../src/journal/journal-file.c:1437 #3 write_to_journal at ../src/journal/journald-server.c:512 #4 dispatch_message_real.lto_priv.223 at ../src/journal/journald-server.c:819 #5 server_dispatch_message at ../src/journal/journald-server.c:917 #6 server_process_syslog_message at ../src/journal/journald-syslog.c:374 #7 server_process_datagram at ../src/journal/journald-server.c:1205 #8 source_dispatch at ../src/libsystemd/sd-event/sd-event.c:2115 #9 sd_event_dispatch at ../src/libsystemd/sd-event/sd-event.c:2472
Created attachment 1011904 [details] File: backtrace
Created attachment 1011905 [details] File: cgroup
Created attachment 1011906 [details] File: core_backtrace
Created attachment 1011907 [details] File: dso_list
Created attachment 1011908 [details] File: environ
Created attachment 1011909 [details] File: limits
Created attachment 1011910 [details] File: maps
Created attachment 1011911 [details] File: mountinfo
Created attachment 1011912 [details] File: namespaces
Created attachment 1011913 [details] File: open_fds
Created attachment 1011914 [details] File: proc_pid_status
*** This bug has been marked as a duplicate of bug 1300212 ***