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

Jay Vosburgh
2023-11-15T00:54:47Z

Bagas Sanjaya <bagasdotme@gmail.com> wrote:

>Hi Thorsten and all,
>
>I come across LACP bonding regression on Bugzilla [1]. 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
>
>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.

Interestingly, we've been chasing internally an issue with
bonding LACP mode on ice (E810-XXV, I think) when running on the Ubuntu
kernel. That manifests as occasional TX timeouts, and doesn't happen if
the Intel OOT driver is used, so I wonder if that bugzilla reporter is
also seeing TX timeouts that correlate with their ping failures.

-J

>Thanks.
>
>[1]: https://bugzilla.kernel.org/show_bug.cgi?id=218139
>
>--
>An old man doll... just what I always wanted! - Clara

---
-Jay Vosburgh, jay.vosburgh@canonical.com