Re: [TEST] CX7 timeouts on reconfig w/ page pool failure injection

[Dragos Tatulea <dtatulea@nvidia.com>]

On 12.08.26 18:59, Jakub Kicinski wrote:
> On Wed, 12 Aug 2026 19:31:09 +0300 Nimrod Oren wrote:
>>> 10min wasn't enough, bumping to 15min :(
>>
>> In these runs xdp-py took ~9.5 minutes. Both pp-alloc and rss-api tests
>> passed:
>>
>> https://netdev.bots.linux.dev/logs/hwksft/CX7-dbg/results/774403/test-outputs/
>> https://netdev.bots.linux.dev/logs/hwksft/CX7-dbg/results/774889/test-outputs/
>> https://netdev.bots.linux.dev/logs/hwksft/CX7-dbg/results/775361/test-outputs/
> 
> Ack, I'll send a patch to bump the timeout shortly.
> 
> That said, the page pool warnings were probabilistic to begin with.
> And they were hit in page_pool_unref_netmem(), I think _some_ bug
> must still be there?
> 
> IOW mlx5e_page_release_fragmented() is draining more references than
> the pp page use counter, that's not normal whether some command timeout
> out or not.
Yes, this shouldn't happen.

You mentioned tag net-next-hw-2026-07-03--00-00 as the first where the
crash occurred. Do you know if it ran before without crashing? I can't
find older data in nipa. And there's nothing that seems relevant around
that timeframe. I'm thinking that this issue could be older.

Thanks,
Dragos