When trying to boot with the maxcpus=1 option, the -rt kernel seems to hang somewhere in acpi_processor_init(). I tested mainline 2.6.21 and it does boot with maxcpus=1. 2.6.20-rt8, 2.6.21-rt1, 2, and 4 all hang at: Calling initcall 0xffffffff817a41df: acpi_processor_init+0x0/0xdf() when booted with initcall_debug and maxcpus=1. I traced this only as far as the call to acpi_bus_register_driver. So this seems to have been introduced by the -rt patch. I'm not sure if I should try and see when it was introduced (as 2.6.16-rt22 does not fail) or if I should head "down the acpi rabbit hole"... Thanks, -- Darren Hart IBM Linux Technology Center Realtime Linux Team - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
