netdev - Re: system hang on start-up (mlx5?)

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Message-ID: <AAFDF38A-E59A-4D6A-8EC2-113861C8B5DB@oracle.com>
Date: Fri, 2 Jun 2023 13:38:45 +0000
From: Chuck Lever III <chuck.lever@...cle.com>
To: Linux regressions mailing list <regressions@...ts.linux.dev>
CC: "elic@...dia.com" <elic@...dia.com>,
        "saeedm@...dia.com"
	<saeedm@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        linux-rdma
	<linux-rdma@...r.kernel.org>,
        "open list:NETWORKING [GENERAL]"
	<netdev@...r.kernel.org>
Subject: Re: system hang on start-up (mlx5?)

Hi Thorsten -

> On Jun 2, 2023, at 7:05 AM, Linux regression tracking #update (Thorsten Leemhuis) <regressions@...mhuis.info> wrote:
> 
> [TLDR: This mail in primarily relevant for Linux regression tracking. A
> change or fix related to the regression discussed in this thread was
> posted or applied, but it did not use a Link: tag to point to the
> report, as Linus and the documentation call for.

Linus recently stated he did not like Link: tags pointing to an
email thread on lore.

Also, checkpatch.pl is now complaining about Closes: tags instead
of Link: tags. A bug was never opened for this issue.

I did check the regzbot docs on how to mark this issue closed,
but didn't find a ready answer. Thank you for following up.


> Things happen, no
> worries -- but now the regression tracking bot needs to be told manually
> about the fix. See link in footer if these mails annoy you.]
> 
> On 08.05.23 14:29, Linux regression tracking #adding (Thorsten Leemhuis)
> wrote:
>> On 03.05.23 03:03, Chuck Lever III wrote:
>>> 
>>> I have a Supermicro X10SRA-F/X10SRA-F with a ConnectX®-5 EN network
>>> interface card, 100GbE single-port QSFP28, PCIe3.0 x16, tall bracket;
>>> MCX515A-CCAT
>>> 
>>> When booting a v6.3+ kernel, the boot process stops cold after a
>>> few seconds. The last message on the console is the MLX5 driver
>>> note about "PCIe slot advertised sufficient power (27W)".
>>> 
>>> bisect reports that bbac70c74183 ("net/mlx5: Use newer affinity
>>> descriptor") is the first bad commit.
>>> 
>>> I've trolled lore a couple of times and haven't found any discussion
>>> of this issue.
>> 
>> #regzbot ^introduced bbac70c74183
>> #regzbot title system hang on start-up (irq or mlx5 problem?)
>> #regzbot ignore-activity
> 
> #regzbot fix: 368591995d010e6
> #regzbot ignore-activity
> 
> 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.

--
Chuck Lever