Re: sr-iov related bonding regression (two regressions in one report)

Anil Choudhary
2023-11-15T20:49:12Z

We are getting errorError subscribing to SWID 0x0000.
from following code
root@us-ash-r1-c2-m1:~/linux# grep -rn -e "subscribing to " .
grep: ./debian/linux-image/lib/modules/6.6.1-vdx/kernel/drivers/net/ethernet/intel/ice/ice.ko: binary file matches
./samples/connector/ucon.c:149: ulog("subscribing to %u.%u\n", CN_TEST_IDX, CN_TEST_VAL);
./Documentation/driver-api/media/v4l2-event.rst:117:add called when a new listener gets added (subscribing to the same
./Documentation/driver-api/media/v4l2-event.rst:130:Unsubscribing to an event is via:
./Documentation/maintainer/feature-and-driver-maintainers.rst:44:mailing list. Either by subscribing to the whole list or using more
grep: ./drivers/net/ethernet/intel/ice/ice_lag.o: binary file matches
grep: ./drivers/net/ethernet/intel/ice/ice.o: binary file matches
grep: ./drivers/net/ethernet/intel/ice/ice.ko: binary file matches
./drivers/net/ethernet/intel/ice/ice_lag.c:1007: dev_err(ice_pf_to_dev(local_lag->pf), "Error subscribing to SWID 0x%04X\n",
root@us-ash-r1-c2-m1:~/linux#

Thanks,
Anil

> On Nov 14, 2023, at 10:19 PM, Anil Choudhary <anilchabba@gmail.com> wrote:
>
> <PastedGraphic-1.png>
>
>
> Following error error scribing to said is also new
>
>> On Nov 14, 2023, at 9:50 PM, Linux regression tracking (Thorsten Leemhuis) <regressions@leemhuis.info> wrote:
>>
>> On 15.11.23 01:54, Jay Vosburgh wrote:
>>> Bagas Sanjaya <bagasdotme@gmail.com> wrote:
>>>
>>>> I come across LACP bonding regression on Bugzilla [1].
>>
>> Side note: Stephen forwards some (all?) network regressions to the right
>> people:
>> https://lore.kernel.org/all/20231113083746.5e02f8b0@hermes.local/
>>
>> Would be best to check for that, no need to forward things twice, that
>> just results in a mess.
>>
>>>> The reporter
>>>> (Cc'ed) has two regressions. The first is actual LACP bonding
>>>> regression (but terse):
>>>>
>>>>> Till linkx kernel 6.5.7 it is working fine, but after upgrading to 6.6.1 ping stop working with LACP bonding.
>>>>> When we disable SR-IOV from bios , everything working fine
>>
>> Makes me wonder if things have been working with or without the OOT
>> module on 6.5.7, as strictly speaking it's only considered a kernel
>> regression if thing worked with a vanilla kernel (e.g. without OOT
>> modules) beforehand and broke when switching to a newer vanilla kernel.
>> If that's the case it would be okay to add to regzbot.
>>
>>>> And the second is out-of-tree module FTBFS:
>>> [... skip OOT stuff ...]
>>>
>>>> Should I add the first regression to regzbot (since the second one
>>>> is obviously out-of-tree problem), or should I asked detailed regression
>>>> info to the reporter?
>>>
>>> My vote is to get additional information. Given the nature of
>>> the workaround ("When we disable SR-IOV from bios , everything working
>>> fine"), it's plausible that the underlying cause is something
>>> platform-specific.
>>
>> Maybe, but when it comes to the "no regressions" rule that likely makes
>> no difference from Linus perspective.
>>
>> But I guess unless the intel folks or someone else has an idea what
>> might be wrong here we likely need a bisection (with vanilla kernels of
>> course) to get anywhere.
>>
>> Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
>> --
>> Everything you wanna know about Linux kernel regression tracking:
>> https://linux-regtracking.leemhuis.info/about/#tldr
>> If I did something stupid, please tell me, as explained on that page.
>