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| -rw-r--r-- | docs/troubleshooting/reportingissues/reportingissues.rst | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/docs/troubleshooting/reportingissues/reportingissues.rst b/docs/troubleshooting/reportingissues/reportingissues.rst index 73b2397477f..461bff4596d 100644 --- a/docs/troubleshooting/reportingissues/reportingissues.rst +++ b/docs/troubleshooting/reportingissues/reportingissues.rst @@ -238,6 +238,33 @@ Even given a byte-for-byte identical source tree, it's easy to build dramatically different binary artifacts. All it takes is a different toolchain version. + +Compressed Core Files +--------------------- + +Depending on operational requirements, it's possible to compress +corefiles as they are generated. Please note that it takes several +seconds' worth of wall-clock time to compress a vpp core file on the +fly, during which all packet processing activities are suspended. + +To create compressed core files on the fly, create the following +script, e.g. in /usr/local/bin/compressed_corefiles, owned by root, +executable: + +.. code-block:: console + + #!/bin/sh + exec /bin/gzip -f - >"/tmp/dumps/core-$1.$2.gz" + +Adjust the kernel core file pattern as shown: + +.. code-block:: console + + sysctl -w kernel.core_pattern="|/usr/local/bin/compressed_corefiles %e %t" + +Core File Summary +----------------- + Bottom line: please follow core file handling instructions to the letter. It's not complicated. Simply copy the exact Debian packages or RPMs which correspond to core files to accessible locations. |