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

[oulijun]

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
EAL: Detected 128 lcore(s)
EAL: Detected 4 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: No available hugepages reported in hugepages-2048kB
EAL: No available hugepages reported in hugepages-32768kB
EAL: No available hugepages reported in hugepages-64kB
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL:   using IOMMU type 1 (Type 1)
EAL: Ignore mapping IO port bar(1)
EAL: Ignore mapping IO port bar(3)
EAL: Probe PCI driver: net_hns3 (19e5:a221) device: 0000:7d:00.1 (socket 0)
No telemetry legacy support - No legacy callbacks, legacy socket not created
Promiscuous mode selected
soft parse-ptype is enabled
POWER: Env isn't set yet!
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
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
POWER: Unable to set Power Management Environment for lcore 26
POWER: Library initialization failed on core 26
EAL: Error - exiting with code: 1
   Cause: init_power_library failed

Thanks
Lijun Ou

在 2020/5/22 17:02, Hunt, David 写道:
> 
> On 22/5/2020 9:17 AM, oulijun wrote:
>>
>>
>> 在 2020/5/20 15:22, David Marchand 写道:
>>> Hello,
>>>
>>> On Wed, May 20, 2020 at 5:18 AM oulijun <oulijun at huawei.com> wrote:
>>>>      I am using 20.05-rc2 version to test based on HNS3 NIC 
>>>> hardware, and
>>>> found that after starting l3fwd-power,
>>>>
>>>> using ctrl+c cannot force quit. But I revert the patch(33666b4 service:
>>>> fix crash on exit) and it is ok.
>>>
>>> We had a fix in rc1 that is supposed to fix this.
>>> https://git.dpdk.org/dpdk/commit?id=613ce6691c0d5ac0f99d7995f1e8e4ac86643882 
>>>
>>>
>>> Copying Anatoly and David H. too.
>>>
>> Hi, David Marchand
>>    I am only merged the patch(examples/l3fwd-power: implement proper 
>> shutdown) based on 20.05-rc0 and test. the bug is not resolved.
>> Can you provide me with complete solution?  I want to understand the 
>> cause of the whole problem
>>
> 
> Hi Lijun,
> 
>      The complete solution is to use a version with all of the fixes, as 
> Anatoly suggested previously. I have just checked out the latest tip of 
> the master branch, and l3fwd-power exits gracefully with a single CTRL-C:
> 
> 
> ...
> Checking link statusdone
> Port 0 Link Up - speed 100000 Mbps - full-duplex
> L3FWD_POWER: entering main loop on lcore 27
> L3FWD_POWER:  -- lcoreid=27 portid=0 rxqueueid=0
> L3FWD_POWER: lcore 26 has nothing to do
> L3FWD_POWER: lcore 27 sleeps until interrupt triggers
> *^C*POWER: Power management governor of lcore 26 has been set back to  
> successfully
> POWER: Power management of lcore 26 has exited from 'performance' mode 
> and been set back to the original
> POWER: Power management governor of lcore 27 has been set back to 
> successfully
> POWER: Power management of lcore 27 has exited from 'performance' mode 
> and been set back to the original
> #
> 
> 
> Rgds,
> Dave.
> 
> 
>