[Expired for linux-raspi (Ubuntu) because there has been no activity for
60 days.]
** Changed in: linux-raspi (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/2091806
Title:
MCP251xFD driver throws segmentation fault when starting a can bus
Status in linux-raspi package in Ubuntu:
Expired
Bug description:
Version: linux-raspi 6.8.0-1016
When bringing up a can bus, the driver crashes with a segmentation
fault. This seems to be a known issue and is documented and patched in
the raspberry pi linux kernel
(https://github.com/raspberrypi/linux/issues/6406) and here
(https://lore.kernel.org/all/20240924-truthful-authentic-basilisk-
aaab90-...@pengutronix.de/)
According to the raspberry pi issue, the following patches are integrated to
fix the issue:
51b2a72 ("can: mcp251xfd: properly indent labels")
(https://github.com/raspberrypi/linux/commit/51b2a721612236335ddec4f3fb5f59e72a204f3a)
a780154 ("can: mcp251xfd: move mcp251xfd_timestamp_start()/stop() into
mcp251xfd_chip_start/stop()")
(https://github.com/raspberrypi/linux/commit/a7801540f325d104de5065850a003f1d9bdc6ad3)
The IRQ handler mcp251xfd_handle_tefif() returned -22. problem is partly
fixed with:
3c1c185 ("can: mcp251xfd: mcp251xfd_get_tef_len(): fix length calculation")
(https://github.com/raspberrypi/linux/commit/3c1c18551e6ac1b988d0a05c5650e3f6c95a1b8a)
But it might be that the driver is missing several other patches
needed for stability.
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