LTTNG-CRASH(1)                  LTTng Manual                  LTTNG-CRASH(1)

NAME         top

       lttng-crash - Recover and view LTTng 2 trace buffers in the event of
       a crash

SYNOPSIS         top

       lttng-crash [--extract=PATH | --viewer=VIEWER] [-v | -vv | -vvv]

DESCRIPTION         top

       The Linux Trace Toolkit: next generation <> is an
       open source software package used for correlated tracing of the Linux
       kernel, user applications, and user libraries.

       LTTng consists of Linux kernel modules (for Linux kernel tracing) and
       dynamically loaded libraries (for user application and library

       The lttng-crash command-line tool is used to recover and view LTTng
       trace buffers in the event of a system crash.

OPTIONS         top

       -x PATH, --extract=PATH
           Extract recovered traces to path PATH; do not execute the trace

       -v, --verbose
           Increase verbosity.

           Three levels of verbosity are available, which are triggered by
           appending additional v letters to the option (that is, -vv and

       -e VIEWER, --viewer=VIEWER
           Use trace viewer VIEWER to view the trace buffers.  VIEWER is the
           absolute path to the viewer command to use, and it can contain
           command arguments as well. The trace directory paths are passed
           to the VIEWER command as its last arguments.

           Default: babeltrace.

   Program information
       -h, --help
           Show help.

       -V, --version
           Show version.

EXIT STATUS         top



           Fatal error

BUGS         top

       If you encounter any issue or usability problem, please report it on
       the LTTng bug tracker <>.

RESOURCES         top

       ·   LTTng project website <>

       ·   LTTng documentation <>

       ·   Git repositories <>

       ·   GitHub organization <>

       ·   Continuous integration <>

       ·   Mailing list <> for support and

       ·   IRC channel <irc://>: #lttng on

COPYRIGHTS         top

       This program is part of the LTTng-tools project.

       LTTng-tools is distributed under the GNU General Public License
       version 2 <>.
       See the LICENSE <
       tools/blob/master/LICENSE> file for details.

THANKS         top

       Special thanks to Michel Dagenais and the DORSAL laboratory
       <> at École Polytechnique de Montréal
       for the LTTng journey.

       Also thanks to the Ericsson teams working on tracing which helped us
       greatly with detailed bug reports and unusual test cases.

AUTHORS         top

       LTTng-tools was originally written by Mathieu Desnoyers, Julien
       Desfossez, and David Goulet. More people have since contributed to

       LTTng-tools is currently maintained by Jérémie Galarneau

SEE ALSO         top

       lttng(1), lttng-sessiond(8), lttng-relayd(8), lttng-ust(3),

COLOPHON         top

       This page is part of the LTTng-Tools (    LTTng tools) project.
       Information about the project can be found at ⟨⟩.
       It is not known how to report bugs for this man page; if you know,
       please send a mail to  This page was obtained
       from the project's upstream Git repository
       ⟨git://⟩ on 2019-05-09.  (At that time,
       the date of the most recent commit that was found in the repository
       was 2019-05-04.)  If you discover any rendering problems in this HTML
       version of the page, or you believe there is a better or more up-to-
       date source for the page, or you have corrections or improvements to
       the information in this COLOPHON (which is not part of the original
       manual page), send a mail to

LTTng 2.12.0-pre                 10/29/2018                   LTTNG-CRASH(1)

Pages that refer to this page: lttng(1)lttng-create(1)lttng-relayd(8)lttng-sessiond(8)