Hello, On Thu, Feb 29, 2024 at 9:51 AM Sindhura Bandi <sindhura.ba...@certesnetworks.com> wrote: > > I might be asking a basic question here. I'm facing some issues while > bringing up a dpdk interface on ovs-dpdk on debian-12. Dpdk version is > 22.11.1. > Dpdk seems to fail to allocate a mempool, even though there seem to be enough > free huge page memory available on the machine. >
Well, this is more a OVS question than a DPDK one :-) There are two things to configure here. > I tried to enable dpdk debugs using the following command, > ovs-vsctl set Open_vSwitch . > other_config:dpdk-extra="--log-level=lib.mbuf:debug" First, as you tried, you must ask DPDK to emit debug logs for the mbuf library. The above configuration is fine. Just a small note that since OVS 2.14 you can enable logs dynamically without having to restart OVS / setting a dpdk-extra param in ovsdb. For example, I have no dpdk-extra config. # ovs-appctl dpdk/log-list | grep mbuf id 16: lib.mbuf, level is info # ovs-appctl dpdk/log-set lib.mbuf:debug # ovs-appctl dpdk/log-list | grep mbuf id 16: lib.mbuf, level is debug > > The command was accepted, but I don't see any logs from dpdk anywhere in my > /var/log. That is because OVS log framework applies a filter. # ovs-appctl vlog/list | grep dpdk dpdk OFF ERR INFO netdev_dpdk OFF ERR INFO netdev_offload_dpdk OFF ERR INFO The dpdk facility here is only logging ERR level messages to syslog, and INFO level to the /var/log file. You probably want to set: # ovs-appctl vlog/set FILE:dpdk:dbg # ovs-appctl vlog/list | grep dpdk dpdk OFF ERR DBG netdev_dpdk OFF ERR INFO netdev_offload_dpdk OFF ERR INFO Hope that helps. -- David Marchand
