From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Jacob Kroon <jacob.kroon@gmail.com>
Cc: Oliver Hartkopp <socketcan@hartkopp.net>,
linux-can@vger.kernel.org, wg@grandegger.com, dariobin@libero.it
Subject: Re: CM-ITC, pch_can/c_can_pci, sendto() returning ENOBUFS
Date: Fri, 23 Sep 2022 13:36:38 +0200 [thread overview]
Message-ID: <20220923113638.tjnbuvkzdq24c4as@pengutronix.de> (raw)
In-Reply-To: <8c481a4e-9493-25ae-f4d7-c12dc98bc83e@gmail.com>
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On 16.09.2022 06:14:58, Jacob Kroon wrote:
> What I do know is that if I revert commit:
>
> "can: c_can: cache frames to operate as a true FIFO"
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=387da6bc7a826cc6d532b1c0002b7c7513238d5f
>
> then everything looks good. I don't get any BUG messages, and the host
> has been running overnight without problems, so it seems to have fixed
> the network interface lockup as well.
Jacob, after this mail, I'll send 2 patches. One tries to disable the
cache feature for C_CAN cores, the other shuts a potential race window.
Please test both patches, but only apply one of them at a time. :)
regards,
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Embedded Linux | https://www.pengutronix.de |
Vertretung West/Dortmund | Phone: +49-231-2826-924 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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next prev parent reply other threads:[~2022-09-23 11:36 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-25 13:25 CM-ITC, pch_can/c_can_pci, sendto() returning ENOBUFS Jacob Kroon
2022-08-26 11:24 ` Jacob Kroon
2022-08-29 9:14 ` Jacob Kroon
2022-08-29 13:20 ` Jacob Kroon
2022-08-29 13:53 ` Oliver Hartkopp
2022-08-30 12:59 ` Jacob Kroon
2022-08-30 19:15 ` Oliver Hartkopp
2022-09-01 9:38 ` Jacob Kroon
2022-09-01 16:35 ` Oliver Hartkopp
2022-09-02 15:13 ` Jacob Kroon
2022-09-02 16:39 ` Jacob Kroon
2022-09-05 14:17 ` Marc Kleine-Budde
2022-09-05 15:54 ` Marc Kleine-Budde
2022-09-16 4:14 ` Jacob Kroon
2022-09-19 23:24 ` Jacob Kroon
2022-09-20 1:23 ` Vincent Mailhol
2022-09-20 5:08 ` Jacob Kroon
2022-09-21 7:25 ` dariobin
2022-09-21 7:47 ` Marc Kleine-Budde
2022-09-21 8:26 ` Jacob Kroon
2022-09-21 9:55 ` Oliver Hartkopp
2022-09-21 10:32 ` Marc Kleine-Budde
2022-09-21 10:39 ` Oliver Hartkopp
2022-09-21 10:53 ` Marc Kleine-Budde
2022-09-21 11:00 ` Oliver Hartkopp
2022-09-22 7:20 ` dariobin
2022-09-23 11:36 ` Marc Kleine-Budde [this message]
2022-09-23 17:55 ` dariobin
2022-09-23 19:03 ` Jacob Kroon
2022-09-23 19:21 ` Jacob Kroon
2022-09-23 19:45 ` dariobin
2022-09-23 20:27 ` Jacob Kroon
2022-09-24 5:17 ` Jacob Kroon
2022-09-28 8:25 ` Marc Kleine-Budde
2022-09-28 8:28 ` Jacob Kroon
2022-09-28 8:02 ` Marc Kleine-Budde
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