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SubjectFwd: nvsp_rndis_pkt_complete error status and net_ratelimit: callbacks suppressed messages on 6.4.0rc4
Hi,

I notice a regression report on Bugzilla [1]. Quoting from it:

> After building 6.4.0rc4 for my VM running on a Windows 10 Hyper-V host, I see the following
>
> [ 756.697753] net_ratelimit: 34 callbacks suppressed
> [ 756.697806] hv_netvsc cd9dd876-2fa9-4764-baa7-b44482f85f9f eth0: nvsp_rndis_pkt_complete error status: 2
> (snipped repeated messages)
>
> *but*, I'm only able to reliably reproduce this if I am generating garbage on another terminal, e.g. sudo strings /dev/sda
>
>
> This doesn't appear to affect latency or bandwidth a huge amount, I ran an iperf3 test between the guest and the host while trying to cause these messages.
> Although you if you take 17-18 gigabit as the "base" speed, you can see it drop a bit to 16 gigabit while the errors happen and "catch up" when I stop spamming the console.
>
> [ 5] 99.00-100.00 sec 1.89 GBytes 16.2 Gbits/sec
> [ 5] 100.00-101.00 sec 1.91 GBytes 16.4 Gbits/sec
> [ 5] 101.00-102.00 sec 1.91 GBytes 16.4 Gbits/sec
> [ 5] 102.00-103.00 sec 1.91 GBytes 16.4 Gbits/sec
> [ 5] 103.00-104.00 sec 1.92 GBytes 16.5 Gbits/sec
> [ 5] 104.00-105.00 sec 1.94 GBytes 16.6 Gbits/sec
> [ 5] 105.00-106.00 sec 1.89 GBytes 16.2 Gbits/sec
> [ 5] 106.00-107.00 sec 1.90 GBytes 16.3 Gbits/sec
> [ 5] 107.00-108.00 sec 2.23 GBytes 19.2 Gbits/sec
> [ 5] 108.00-109.00 sec 2.57 GBytes 22.0 Gbits/sec
> [ 5] 109.00-110.00 sec 2.66 GBytes 22.9 Gbits/sec
> [ 5] 110.00-111.00 sec 2.64 GBytes 22.7 Gbits/sec
> [ 5] 111.00-112.00 sec 2.65 GBytes 22.7 Gbits/sec
> [ 5] 112.00-113.00 sec 2.65 GBytes 22.8 Gbits/sec
> [ 5] 113.00-114.00 sec 2.65 GBytes 22.8 Gbits/sec
> [ 5] 114.00-115.00 sec 2.65 GBytes 22.8 Gbits/sec
> [ 5] 115.00-116.00 sec 2.66 GBytes 22.9 Gbits/sec
> [ 5] 116.00-117.00 sec 2.63 GBytes 22.6 Gbits/sec
> [ 5] 117.00-118.00 sec 2.69 GBytes 23.1 Gbits/sec
> [ 5] 118.00-119.00 sec 2.66 GBytes 22.9 Gbits/sec
> [ 5] 119.00-120.00 sec 2.67 GBytes 22.9 Gbits/sec
> [ 5] 120.00-121.00 sec 2.66 GBytes 22.9 Gbits/sec
> [ 5] 121.00-122.00 sec 2.49 GBytes 21.4 Gbits/sec
> [ 5] 122.00-123.00 sec 2.15 GBytes 18.5 Gbits/sec
> [ 5] 123.00-124.00 sec 2.16 GBytes 18.6 Gbits/sec
> [ 5] 124.00-125.00 sec 2.16 GBytes 18.6 Gbits/sec
>

See bugzilla for the full thread.

Anyway, I'm adding it to regzbot:

#regzbot introduced: dca5161f9bd052 https://bugzilla.kernel.org/show_bug.cgi?id=217503
#regzbot title: net_ratelimit and nvsp_rndis_pkt_complete error due to SEND_RNDIS_PKT status check

Thanks.

[1]: https://bugzilla.kernel.org/show_bug.cgi?id=217503

--
An old man doll... just what I always wanted! - Clara

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