NAME

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

SYNOPSIS

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

DESCRIPTION

       The Linux Trace Toolkit: next generation <https://lttng.org/> 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 tracing).

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

OPTIONS

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

       -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 -vvv).

       -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

       0
           Success

       1
           Error

       3
           Fatal error

BUGS

       If you encounter any issue or usability problem, please report it on the LTTng bug tracker
       <https://bugs.lttng.org/projects/lttng-tools>.

RESOURCES

       •   LTTng project website <https://lttng.org>

       •   LTTng documentation <https://lttng.org/docs>

       •   Git repositories <http://git.lttng.org>

       •   GitHub organization <http://github.com/lttng>

       •   Continuous integration <http://ci.lttng.org/>

       •   Mailing list <http://lists.lttng.org> for support and development: lttng-
           dev@lists.lttng.org

       •   IRC channel <irc://irc.oftc.net/lttng>: #lttng on irc.oftc.net

COPYRIGHTS

       This program is part of the LTTng-tools project.

       LTTng-tools is distributed under the GNU General Public License version 2
       <http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html>. See the LICENSE
       <https://github.com/lttng/lttng-tools/blob/master/LICENSE> file for details.

THANKS

       Special thanks to Michel Dagenais and the DORSAL laboratory
       <http://www.dorsal.polymtl.ca/> 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.

SEE ALSO

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