Ubuntu
linux-hwe-5.11 package

  1. Bug #1931001
  2. Comment #27

Comment 27 for bug 1931001

Revision history for this message
In , ck+kernelbugzilla (ck+kernelbugzilla-linux-kernel-bugs) wrote :

(In reply to Guenter Roeck from comment #10)
> #7 suggests a problem with the i801 driver and its interrupt handling. #9
> contradicts that a bit, though.
>
> Maybe the C2000 has problems with interrupts, or implements it differently
> than handled by the driver. This may be triggered by an actual access on the
> bus. You could try to confirm it by running the i2cdump command after
> booting without the jc42 module loaded (i2cdetect -y 1 should show no
> reserved addresses) and see if the interrupts start happening.
>
> Thanks,
> Guenter

You nail it ;-) Right after executing "i2cdump -y -f 1 0x18 w", the interrupts start massively. But jc42 wasn't loaded.

Cheers
Conrad