Am 07.05.21 um 09:25 schrieb Marc Kleine-Budde: > On 22.04.2021 09:18:54, Marc Kleine-Budde wrote: >> On 4/21/21 9:58 PM, Drew Fustini wrote: >>> I am encountering similar error with the 5.10 raspberrypi kernel on >>> RPi 4 with MCP2518FD: >>> >>> mcp251xfd spi0.0 can0: CRC read error at address 0x0010 (length=4, >>> data=00 ad 58 67, CRC=0xbbfd) retrying >> >> What's the situation you see these errors? >> >> I'm not particular happy with that patch, as it only works around that one >> particular bit flip issue. If you really hammer the register, the driver will >> still notice CRC errors that can be explained by other bits flipping. Consider >> this as the first order approximation of a higher order problem :) - the root >> cause is still unknown. >> >>> Would it be possible for you to pull these patches into a v5.10 branch >>> in your linux-rpi repo [1]? >> >> Here you are: >> >> https://github.com/marckleinebudde/linux-rpi/tree/v5.10-rpi/backport-performance-improvements >> >> I've included the UINC performance enhancements, too. The branch is compiled >> tested only, though. I'll send a pull request to the rpi kernel after I've >> testing feedback from you. > > Drew, Patrick, have you tested this branch? If so I'll send a pull > request to the raspi kernel. > Sorry Marc, not yet. Thanks for reminding me. I'll start a native build on a pi0w asap. Is there any test application or stress test that I should run? Regards, Patrick
