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

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Message-ID: <97198A71-5B08-404A-BEDF-7F5B0A9E5A23@oracle.com>
Date: Fri, 2 Jun 2023 14:03:23 +0000
From: Chuck Lever III <chuck.lever@...cle.com>
To: Linux regressions mailing list <regressions@...ts.linux.dev>,
        "saeedm@...dia.com" <saeedm@...dia.com>
CC: "elic@...dia.com" <elic@...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?)



> On Jun 2, 2023, at 9:55 AM, Linux regression tracking (Thorsten Leemhuis) <regressions@...mhuis.info> wrote:
> 
> On 02.06.23 15:38, Chuck Lever III wrote:
>> 
>>> 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.
> 
> Afaik he strongly dislikes them when a Link: tag just points to the
> submission of the patch being applied; at the same time he *really
> wants* those links if they tell the backstory how a fix came into being,
> which definitely includes the report about the issue being fixed (side
> note: without those links regression tracking becomes so hard that it's
> basically no feasible).

I certainly appreciate having that information available.
I must have misunderstood Linus' comment.


> If my knowledge is not up to date, please if you have a minute do me a
> favor and point me to Linus statement your refer to.
> 
>> Also, checkpatch.pl is now complaining about Closes: tags instead
>> of Link: tags. A bug was never opened for this issue.
> 
> That was a change by somebody else, but FWIW, just use Closes: (instead
> of Link:) with a link to the report on lore, that tag is not reserved
> for bugs.
> 
> /me will go and update his boilerplate text used above

The specific complaint is about the ordering of Reported-by:
and Link: or Closes: tags.

Saeed, if it is still possible, you can add:

Closes: https://lore.kernel.org/netdev/bb2df75d-05be-3f7b-693a-84be195dc2f1@leemhuis.info/T/#m49b88941c8dc5be42fa960f84ecda680ddb1a778

To my patch.


>> 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.
> 
> yw, but no worries, that's what I'm here for. :-D
> 
> Ciao, Thorsten
> 
>>> 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
>> 
>> 

--
Chuck Lever