On Tue, Aug 16, 2022 at 08:03:33AM +0200, Josef Johansson wrote: > On 7/8/22 14:09, Andy Shevchenko wrote: > I tried build Linux 6.0 and run under Xen 4.14.5. I got a kernel null pointer dereferenced while booting. Reverting this commit allowed the system to boot. > > Since I do not have any way of capturing the error except camera (it's a long message), here's my best try. > > BUG: kernel NULL pointer dereference, address: 0000000000000000 I think I know what happens there. Can you test a hackpatch (below) with my patch _not being reverted_? diff --git a/drivers/i2c/busses/i2c-scmi.c b/drivers/i2c/busses/i2c-scmi.c index 79798fc7462a..3ed1758706b0 100644 --- a/drivers/i2c/busses/i2c-scmi.c +++ b/drivers/i2c/busses/i2c-scmi.c @@ -426,6 +426,9 @@ static struct acpi_driver acpi_smbus_cmi_driver = { .add = acpi_smbus_cmi_add, .remove = acpi_smbus_cmi_remove, }, + .drv = { + .acpi_match_table = acpi_smbus_cmi_ids, + }, }; module_acpi_driver(acpi_smbus_cmi_driver); -- With Best Regards, Andy Shevchenko