linux-kernel - Re: [PATCH v2 1/4] Revert "igb: Disable threaded IRQ for igb_msix

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Message-ID: <2e6cea97-0ebf-4767-b014-680a0502e1f9@intel.com>
Date: Tue, 12 Nov 2024 15:52:34 +0100
From: Przemek Kitszel <przemyslaw.kitszel@...el.com>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>, Jacob Keller
	<jacob.e.keller@...el.com>, Tony Nguyen <anthony.l.nguyen@...el.com>, "Wander
 Lairson Costa" <wander@...hat.com>
CC: <tglx@...utronix.de>, Andrew Lunn <andrew+netdev@...n.ch>, "David S.
 Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, "Jakub
 Kicinski" <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Clark Williams
	<clrkwllms@...nel.org>, Steven Rostedt <rostedt@...dmis.org>, Simon Horman
	<horms@...nel.org>, "moderated list:INTEL ETHERNET DRIVERS"
	<intel-wired-lan@...ts.osuosl.org>, "open list:NETWORKING DRIVERS"
	<netdev@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>, "open
 list:Real-time Linux (PREEMPT_RT):Keyword:PREEMPT_RT"
	<linux-rt-devel@...ts.linux.dev>
Subject: Re: [PATCH v2 1/4] Revert "igb: Disable threaded IRQ for
 igb_msix_other"

On 11/11/24 13:53, Sebastian Andrzej Siewior wrote:
> On 2024-11-08 15:00:48 [-0800], Jacob Keller wrote:
>>
>>
>> On 11/8/2024 4:28 AM, Sebastian Andrzej Siewior wrote:
>>> On 2024-11-08 13:20:28 [+0100], Przemek Kitszel wrote:
>>>> I don't like to slow things down, but it would be great to have a Link:
>>>> to the report, and the (minified) splat attached.
>>>
>>> I don't have a splat, I just reviewed the original patch. Please do
>>> delay this.
> 
> this clearly lacks a `not'

sorry for the slowdown then,
Acked-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>

> 
>>> Sebastian
>>
>> It will definitely splat on RT kernels at some point, if there is a
>> spinlock.
> 
> exactly my point.
still would be great to add some basic RT tests in our VAL,
but it's unrelated to this patch