netdev - Re: Softirq error with mcp251xfd driver

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Message-ID: <20210422082501.mvi5x6seiokglf4e@pengutronix.de>
Date:   Thu, 22 Apr 2021 10:25:01 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Daniel Glöckner <dg@...ix.com>
Cc:     netdev@...r.kernel.org, linux-can@...r.kernel.org
Subject: Re: Softirq error with mcp251xfd driver

On 10.03.2021 07:46:26, Daniel Glöckner wrote:
> Hi,
> 
> the mcp251xfd driver uses a threaded irq handler to queue skbs with the
> can_rx_offload_* helpers. I get the following error on every packet until
> the rate limit kicks in:
> 
> NOHZ tick-stop error: Non-RCU local softirq work is pending, handler
> #08!!!

FYI:

echo 1 > /sys/class/net/can0/threaded

Marc

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Pengutronix e.K.                 | Marc Kleine-Budde           |
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