[PATCH] osmo-gsm-manuals[master]: OsmoGsmTester: Move coredump section and add reference to ke...

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Pau Espin Pedrol gerrit-no-reply at lists.osmocom.org
Mon Aug 28 09:59:57 UTC 2017


Review at  https://gerrit.osmocom.org/3711

OsmoGsmTester: Move coredump section and add reference to kernel.core_pattern sysctl

This section is moved further below in order to have it after section
which explains how to create user jenkins and osmo-gsm-tester group, as
we need this group already created anyway for the config to work
correctly.

Change-Id: I5bdde0a9960f9806f081e9a876b8b66db9e7f37c
---
M OsmoGSMTester/chapters/install.adoc
1 file changed, 37 insertions(+), 25 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-gsm-manuals refs/changes/11/3711/1

diff --git a/OsmoGSMTester/chapters/install.adoc b/OsmoGSMTester/chapters/install.adoc
index f58c611..d01b823 100644
--- a/OsmoGSMTester/chapters/install.adoc
+++ b/OsmoGSMTester/chapters/install.adoc
@@ -330,31 +330,6 @@
 
 This assumes you have already created the jenkins user (see <<configure_build_slave>>).
 
-==== Allow Core Files
-
-In case a binary run for the test crashes, a core file of the crash should be
-written. This requires a limit rule. Copy the following config file from the
-osmo-gsm-tester source tree to the main unit:
-
-----
-sudo -s
-echo "@osmo-gsm-tester - core unlimited" > /etc/security/limits.d/osmo-gsm-tester_allow-core.conf
-----
-
-Re-login the user to make these changes take effect.
-
-==== Allow Realtime Priority
-
-Certain binaries should be run with real-time priority, like 'osmo-bts-trx'.
-Add this permission on the main unit:
-
-----
-sudo -s
-echo "@osmo-gsm-tester - rtprio 99" > /etc/security/limits.d/osmo-gsm-tester_allow-rtprio.conf
-----
-
-Re-login the user to make these changes take effect.
-
 ==== User Permissions
 
 On the main unit, create a group for all users that should be allowed to use
@@ -467,6 +442,43 @@
 
 TODO: allow skipping pcaps by configuration if access to tcpdump is not wanted
 
+==== Allow Core Files
+
+In case a binary run for the test crashes, a core file of the crash should be
+written. This requires a limit rule. Copy the following config file from the
+osmo-gsm-tester source tree to the main unit:
+
+----
+sudo -s
+echo "@osmo-gsm-tester - core unlimited" > /etc/security/limits.d/osmo-gsm-tester_allow-core.conf
+----
+
+Re-login the user to make these changes take effect.
+
+The most logical idea is usually to store the core file inside the run
+directory, and more specifically in the directory where osmo-gsm-tester is
+writing stderr and stdout for that same process. Luckily, osmo-gsm-tester makes
+that easy, as it sets the CWD to that mentioned directory. This means setting
+sysctl *kernel.core_pattern* to any value specifying a relative path is going to
+be enough to have it stored there. This is usually the case for the default
+value of that sysctl parameter:
+
+----
+sysctl -w kernel.core_pattern=core
+----
+
+==== Allow Realtime Priority
+
+Certain binaries should be run with real-time priority, like 'osmo-bts-trx'.
+Add this permission on the main unit:
+
+----
+sudo -s
+echo "@osmo-gsm-tester - rtprio 99" > /etc/security/limits.d/osmo-gsm-tester_allow-rtprio.conf
+----
+
+Re-login the user to make these changes take effect.
+
 [[user_config_uhd]]
 ==== UHD
 

-- 
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I5bdde0a9960f9806f081e9a876b8b66db9e7f37c
Gerrit-PatchSet: 1
Gerrit-Project: osmo-gsm-manuals
Gerrit-Branch: master
Gerrit-Owner: Pau Espin Pedrol <pespin at sysmocom.de>



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