netdev - Re: mlx5 driver is broken when pci_msix_can_alloc

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Date: Wed, 31 May 2023 15:33:20 +0200
From: "Linux regression tracking #adding (Thorsten Leemhuis)"
 <regressions@...mhuis.info>
To: Niklas Schnelle <schnelle@...ux.ibm.com>, Shay Drory <shayd@...dia.com>,
 Saeed Mahameed <saeedm@...dia.com>, Eli Cohen <elic@...dia.com>,
 netdev@...r.kernel.org
Cc: Linux kernel regressions list <regressions@...ts.linux.dev>
Subject: Re: mlx5 driver is broken when pci_msix_can_alloc_dyn() is false with
 v6.4-rc4

[CCing the regression list, as it should be in the loop for regressions:
https://docs.kernel.org/admin-guide/reporting-regressions.html]

[TLDR: I'm adding this report to the list of tracked Linux kernel
regressions; the text you find below is based on a few templates
paragraphs you might have encountered already in similar form.
See link in footer if these mails annoy you.]

On 30.05.23 15:04, Niklas Schnelle wrote:
> 
> With v6.4-rc4 I'm getting a stream of RX and TX timeouts when trying to
> use ConnectX-4 and ConnectX-6 VFs on s390. I've bisected this and found
> the following commit to be broken:
> 
> commit 1da438c0ae02396dc5018b63237492cb5908608d
> Author: Shay Drory <shayd@...dia.com>
> Date:   Mon Apr 17 10:57:50 2023 +0300
> [...]

Thanks for the report. To be sure the issue doesn't fall through the
cracks unnoticed, I'm adding it to regzbot, the Linux kernel regression
tracking bot:

#regzbot ^introduced 1da438c0ae02396dc5018b63237492cb5908608d
#regzbot title net/mlx5: RX and TX timeouts with ConnectX-4 and
ConnectX-6 VFs on s390
#regzbot ignore-activity

This isn't a regression? This issue or a fix for it are already
discussed somewhere else? It was fixed already? You want to clarify when
the regression started to happen? Or point out I got the title or
something else totally wrong? Then just reply and tell me -- ideally
while also telling regzbot about it, as explained by the page listed in
the footer of this mail.

Developers: When fixing the issue, remember to add 'Link:' tags pointing
to the report (the parent of this mail). See page linked in footer for
details.

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
That page also explains what to do if mails like this annoy you.