On 1/12/22 17:31, David Marchand wrote:
> On Wed, Jan 12, 2022 at 5:17 PM David Marchand
> <[email protected]> wrote:
>>
>> On Wed, Jan 12, 2022 at 4:48 PM Phelan, Michael
>> <[email protected]> wrote:
>>>
>>> Hi,
>>>
>>> During internal testing of the AVX-512 CI, a bug was picked up on the OVS 
>>> master branch which resulted in the MFEX unit tests consistently failing. I 
>>> believe the bug was introduced by commit 
>>> d446dcb7e03fc7bd4e3050c83c22233b0a46d364 “system-dpdk: Refactor common logs 
>>> matching”. It looks like this commit changed the logs which in turn meant 
>>> that the expected output became outdated causing the unit tests to fail. 
>>> The unit tests are still failing with the most recent updates to master so 
>>> this bug does not seem to have been fixed with any commits that have come 
>>> after the one specified.
>>
>> Thanks for reporting.
>> I did not recheck my series after the dpdk upgrade to 21.11 (with only
>> the first patch applied and the whole series does not have the issue
>> since it does not rely on net/pcap anymore).
>>
>> Could you try the following diff:
> 
> Sorry, forgot about gmail mangling stuff.
> 
> Please try: https://github.com/david-marchand/ovs/commit/system-dpdk
> 
> 

Thanks for the report.  And thanks, David, for checking,
I can not verify the change right now, I just wanted to rant for a
bit about system-dpdk testsuite being highly unstable.  It depends
on the system configuration too much.  Today I touched my iommu
configuration and now all the tests are failing due to tons of
virtual address hint warnings:

+2022-01-12T16:25:40.190Z|00023|dpdk|WARN|EAL: WARNING! Base virtual address 
hint (0x100005000 != 0x7f7855c90000) not respected!
+2022-01-12T16:25:40.190Z|00024|dpdk|WARN|EAL:    This may cause issues with 
mapping memory into secondary processes
+2022-01-12T16:25:40.191Z|00025|dpdk|WARN|EAL: WARNING! Base virtual address 
hint (0x10000b000 != 0x7f7855e0c000) not respected!
+2022-01-12T16:25:40.191Z|00026|dpdk|WARN|EAL:    This may cause issues with 
mapping memory into secondary processes
+2022-01-12T16:25:40.191Z|00027|dpdk|WARN|EAL: WARNING! Base virtual address 
hint (0x24000c000 != 0x7f7040000000) not respected!
+2022-01-12T16:25:40.191Z|00028|dpdk|WARN|EAL:    This may cause issues with 
mapping memory into secondary processes

Maybe we should just disable all DPDK warnings?

BTW, DPDK should probably not emit a warning about secondary process
for applications with disabled multiprocessing.

Best regards, Ilya Maximets.
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