[PATCH v2 05/10] spi: bcm2835: Drop dma_pending flag
Stefan Wahren
stefan.wahren at i2se.com
Tue Jul 19 00:34:45 PDT 2022
Hi Marc,
Am 19.07.22 um 08:52 schrieb Marc Kleine-Budde:
> The question is: Why runs the IRQ based transfer into a timeout? The
> kernel that produces the crash has ecfbd3cf3b8b ("spi: bcm2835: Enable
> shared interrupt support") applied (which was reverted on mainline in a
> later patch).
thank for your report. Unfortunately i don't have an answer to your
question, but maybe this is related:
https://github.com/raspberrypi/linux/commit/c643a3603dcbe6d0feada33915cef1ef896b865e
> I'll create a patch to fix the NULL pointer deref. As a interrupt based
> transfer might run into a timeout for other reasons, too. So better
> avoid a kernel crash in that case.
Yes, please
>
> 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 |
>
> _______________________________________________
> linux-rpi-kernel mailing list
> linux-rpi-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rpi-kernel
More information about the linux-rpi-kernel
mailing list