[dpdk-dev] How to dump DPDK log?

[Sam]

Oh, it should be user1,8 in dpdk-17.05

OMG....

2018-05-17 10:26 GMT+08:00 Sam <batmanustc at gmail.com>:

> How to set this param...
>
> I use this, but report me bug:
>
> sudo /usr/local/bin/ovs-vsctl --no-wait set Open_vSwitch .
> other_config:dpdk-extra="--log-level=user1,debug -c 0x40004 -n 4
> --socket-mem 1024 -w 0000:01:00.0 -w 0000:01:00.1"
>
> Bug:
>
> 2018-05-17T02:23:21.878Z|00010|dpdk|INFO|EAL ARGS: ovs-vswitchd
> --log-level=user1,debug -c 0x40004 -n 4 --socket-mem 1024 -w 0000:01:00.0
> -w 0000:01:00.1
> 2018-05-17T02:23:21.878Z|00011|dpdk|ERR|EAL: invalid parameters for
> --log-level
> 2018-05-17T02:23:21.879Z|00012|dpdk|INFO|EAL: Detected 32 lcore(s)
> 2018-05-17T02:23:21.879Z|00013|dpdk|ERR|EAL: invalid parameters for
> --log-level
>
> 2018-05-17T02:23:04.374Z|00010|dpdk|INFO|EAL ARGS: ovs-vswitchd
> --log-level="user1,debug" -c 0x40004 -n 4 --socket-mem 1024 -w 0000:01:00.0
> -w 0000:01:00.1
> 2018-05-17T02:23:04.374Z|00011|dpdk|ERR|EAL: invalid parameters for
> --log-level
> 2018-05-17T02:23:04.375Z|00012|dpdk|INFO|EAL: Detected 32 lcore(s)
> 2018-05-17T02:23:04.375Z|00013|dpdk|ERR|EAL: invalid parameters for
> --log-level
>
> 2018-05-16 21:29 GMT+08:00 Ferruh Yigit <ferruh.yigit at intel.com>:
>
>> On 5/16/2018 9:30 AM, Sam wrote:
>> > I want DPDK VHOST module DEBUG level log
>> >
>> > 2018-05-16 16:27 GMT+08:00 Sam <batmanustc at gmail.com>:
>> >
>> >> Hi all,
>> >>
>> >> I'm debugging OVS2.9.0 and DPDK18.02, I found I could not dump DPDK log
>> >> like vhost module.
>> >>
>> >> How can I dump DPDK log into files? Thank you~
>> >>
>>
>> (Unfortunately) vhost module doesn't register its log type but uses USER1
>> log
>> type [1].
>>
>> Need to set user1 log type to debug, following eal parameter should work:
>> --log-level="user1,debug"
>>
>> Same can be done with logging related APIs by application
>>
>>
>> [1]
>> https://dpdk.org/browse/dpdk/tree/lib/librte_vhost/vhost.h?h
>> =v18.05-rc4#n351
>>
>
>