[dpdk-dev] 【BUG REPORT】l3fwd-power can not exit by ctrl+c

[Hunt, David]

Hi Lijun,

On 26/5/2020 4:50 AM, oulijun wrote:
> Hi，
>    I have update the code into 20.05-rc2. However， the l3fwd-power 
> startup fail.
>
> [root at centos-C3 build]# l3fwd-power -w 0000:7d:00.1  -c 0xc000000 -n 4 
> -- -P -p 0x01 --config '(0,0,27)' --parse-ptype
>

--snip--

> POWER: Attempting to initialise ACPI cpufreq power management...
> POWER: Power management governor of lcore 26 has been set to user 
> space successfully
> POWER: File not opened
> POWER: Cannot get available frequencies of lcore 26
> POWER: Attempting to initialise PSTAT power management...
> POWER: Power management governor of lcore 26 has been set to 
> performance successfully
> POWER: Error opening '/dev/cpu/26/msr': No such file or directory
> POWER: Cannot init for setting frequency for lcore 26


This was not happening in your previous logs, have you got the 'msr' 
kernel module loaded?

> POWER: Attempting to initialise VM power management...
> GUEST_CHANNEL: Opening channel 
> '/dev/virtio-ports/virtio.serial.port.poweragent.26' for lcore 26
> GUEST_CHANNEL: Unable to to connect to 
> '/dev/virtio-ports/virtio.serial.port.poweragent.26' with error No 
> such file or directory


I did not see any GUEST_CHANNEL notifications in the previous logs you 
provided,  has your setup changed in any way?

By the way, I can run the command you provided above (without the 
whitelist) without any errors on my system, and a single CTRL-C exits 
gracefully. I am not running in a VM.

Rgds,
Dave.