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| author | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2018-05-17 17:08:31 +0200 |
|---|---|---|
| committer | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2018-05-17 17:15:03 +0200 |
| commit | c8e053fbe4e7182d88e25477dced2c717f33fdfa (patch) | |
| tree | 191771218beb46ef9f5e32eba82396251c2fcfd5 /man/coredump.conf.xml | |
| parent | ee0449fd7a5d4755d133cf0ddba8ddadc07f057e (diff) | |
| download | systemd-c8e053fbe4e7182d88e25477dced2c717f33fdfa.tar.gz | |
man: fix ProcessSizeMax= description, describe how to disable coredumps
What the man page said was different than what the code did.
save_external_coredump() will store the core temporarily for backtrace
generation, and will delete if afterwards if it is too large. So to disable
processing, it's necessary to both set
Storage=none/Storage=journal+JournalSizeMax=0/Storage=external+ExternalSizeMax=0
and ProcessSizeMax=0. This updates the man page to reflect the code.
The man pages are extended to describe that Storage=none + ProcessSizeMax=0 is
the simplest way to disable coredump processing. All the storage and processing
options make this quite complicated, so let's add a copy-and-pasteable example
of how to disable coredump. Doing it through coredump.conf has the advantage
that we still log, and the effect is immediate, unlike masking the sysconf
file.
Fixes #8788.
Diffstat (limited to 'man/coredump.conf.xml')
| -rw-r--r-- | man/coredump.conf.xml | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/man/coredump.conf.xml b/man/coredump.conf.xml index 048bbc3637..49debb219a 100644 --- a/man/coredump.conf.xml +++ b/man/coredump.conf.xml @@ -74,7 +74,7 @@ <listitem><para>Controls where to store cores. One of <literal>none</literal>, <literal>external</literal>, and <literal>journal</literal>. When - <literal>none</literal>, the core dumps will be logged (including the backtrace if + <literal>none</literal>, the core dumps may be logged (including the backtrace if possible), but not stored permanently. When <literal>external</literal> (the default), cores will be stored in <filename>/var/lib/systemd/coredump/</filename>. When <literal>journal</literal>, cores will be stored in the journal and rotated @@ -101,8 +101,12 @@ <listitem><para>The maximum size in bytes of a core which will be processed. Core dumps exceeding this size - will be logged, but the backtrace will not be generated - and the core will not be stored.</para></listitem> + may be stored, but the backtrace will not be generated. + </para> + + <para>Setting <varname>Storage=none</varname> and <varname>ProcessSizeMax=0</varname> + disables all coredump handling except for a log entry.</para> + </listitem> </varlistentry> <varlistentry> |