Add new option --dump-hugepages option in ovs-ctl to enable the addition
of hugepages in the core dump filter.
Signed-off-by: Mike Pattrick
---
V2:
- Rebased NEWS
- Included shared huge pages in dump
Signed-off-by: Mike Pattrick
---
NEWS | 4
utilities/ovs-ctl.in | 15 +++
2 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/NEWS b/NEWS
index 265375e1c..95d82632f 100644
--- a/NEWS
+++ b/NEWS
@@ -14,6 +14,10 @@ Post-v3.0.0
10 Gbps link speed by default in case the actual link speed cannot be
determined. Previously it was 10 Mbps. Values can still be overridden
by specifying 'max-rate' or '[r]stp-path-cost' accordingly.
+ - ovs-ctl:
+ * New option '--dump-hugepages' to include hugepages in core dumps. This
+ can assist with postmortem analysis involving DPDK, but may also produce
+ significantly larger core dump files.
v3.0.0 - 15 Aug 2022
diff --git a/utilities/ovs-ctl.in b/utilities/ovs-ctl.in
index eba9512fe..0cc9c9f45 100644
--- a/utilities/ovs-ctl.in
+++ b/utilities/ovs-ctl.in
@@ -103,8 +103,13 @@ set_system_ids () {
action "Configuring Open vSwitch system IDs" "$@" $extra_ids
}
-check_force_cores () {
-if test X"$FORCE_COREFILES" = Xyes; then
+check_core_config () {
+if test X"$DUMP_HUGEPAGES" = Xyes; then
+echo 0x7f > /proc/self/coredump_filter
+if test X"$FORCE_COREFILES" = Xyes; then
+ulimit -c unlimited
+fi
+elif test X"$FORCE_COREFILES" = Xyes; then
ulimit -c 67108864
fi
}
@@ -116,7 +121,7 @@ del_transient_ports () {
}
do_start_ovsdb () {
-check_force_cores
+check_core_config
if daemon_is_running ovsdb-server; then
log_success_msg "ovsdb-server is already running"
@@ -193,7 +198,7 @@ add_managers () {
}
do_start_forwarding () {
-check_force_cores
+check_core_config
insert_mod_if_required || return 1
@@ -330,6 +335,7 @@ set_defaults () {
DAEMON_CWD=/
FORCE_COREFILES=yes
+DUMP_HUGEPAGES=no
MLOCKALL=yes
SELF_CONFINEMENT=yes
MONITOR=yes
@@ -419,6 +425,7 @@ Other important options for "start", "restart" and
"force-reload-kmod":
Less important options for "start", "restart" and "force-reload-kmod":
--daemon-cwd=DIR set working dir for OVS daemons (default:
$DAEMON_CWD)
--no-force-corefiles do not force on core dumps for OVS daemons
+ --dump-hugepages include hugepages in coredumps
--no-mlockall do not lock all of ovs-vswitchd into memory
--ovsdb-server-priority=NICE set ovsdb-server's niceness (default:
$OVSDB_SERVER_PRIORITY)
--ovsdb-server-options=OPTIONS additional options for ovsdb-server (example:
'-vconsole:dbg -vfile:dbg')
--
2.31.1
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