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Message-ID: <ebdd877d-f143-487c-04cd-606996eb6176@leemhuis.info>
Date: Mon, 5 Jun 2023 12:28:14 +0200
From: "Linux regression tracking (Thorsten Leemhuis)"
<regressions@...mhuis.info>
To: Michael Kelley <mikelley@...rosoft.com>
Cc: Haiyang Zhang <haiyangz@...rosoft.com>, Paolo Abeni <pabeni@...hat.com>,
"David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Linux Regressions <regressions@...ts.linux.dev>,
Linux BPF <bpf@...r.kernel.org>,
Linux on Hyper-V <linux-hyperv@...r.kernel.org>,
Linux Kernel Network Developers <netdev@...r.kernel.org>,
Bagas Sanjaya <bagasdotme@...il.com>
Subject: Re: Fwd: nvsp_rndis_pkt_complete error status and net_ratelimit:
callbacks suppressed messages on 6.4.0rc4
Hi, Thorsten here, the Linux kernel's regression tracker.
On 30.05.23 14:25, Bagas Sanjaya wrote:
>
> I notice a regression report on Bugzilla [1]. Quoting from it:
Hmmm, nobody replied to this yet (or am I missing something?). Doesn't
seems like it's something urgent, but nevertheless:
Michael, Bagas didn't make it obvious at all, hence please allow me to
ask: did you notice that this is a regression that is apparently caused
by a commit of yours?
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.
#regzbot poke
>> 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
>
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