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ovs-ctl: Allow inclusion of hugepages in coredumps.

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Add new option --dump-hugepages option in ovs-ctl to enable the addition
of hugepages in the core dump filter.

Reviewed-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Mike Pattrick <mkp@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
This commit is contained in:
Mike Pattrick 2022-12-19 08:38:38 -05:00 committed by Ilya Maximets
parent c82f496c3b
commit d34245ea15
2 changed files with 15 additions and 4 deletions
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4
NEWS
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@ -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

15
utilities/ovs-ctl.in
View File

@ -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 core dumps
--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')