Hi Jason, On Fri, Sep 05, 2014 at 10:28:01PM -0700, Jason Newton wrote: > [ 0.021820] AMD-Vi: device: 00:00.2 cap: 0040 seg: 0 flags: b8 info 0000 > [ 0.021827] AMD-Vi: mmio-addr: 00000000feb80000 > [ 0.021844] AMD-Vi: DEV_SELECT_RANGE_START devid: 00:01.0 flags: 00 > [ 0.021848] AMD-Vi: DEV_RANGE_END devid: ff:1f.6 > [ 0.022730] AMD-Vi: DEV_ALIAS_RANGE devid: 02:00.0 flags: 00 devid_to: 00:14.4 > [ 0.022735] AMD-Vi: DEV_RANGE_END devid: 02:1f.7 > [ 0.022745] AMD-Vi: DEV_SPECIAL(HPET[0]) devid: 00:14.0 > [ 0.022749] AMD-Vi: DEV_SPECIAL(IOAPIC[5]) devid: 00:14.0 > [ 0.022753] AMD-Vi: DEV_SPECIAL(IOAPIC[6]) devid: 00:00.0 It is just a test, as I don't know how the hardware is actually wired in your system, but can you try to boot with 'ivrs_ioapic[6]=00:00.1' on the kernel command line and report if it makes any difference? Thanks, Joerg -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html