Please CC: me as i'm not subscribed to the list. Hi. I had two drivers stop working in 2.6.31 that were working fine in 2.6.30. They are iwlagn and sky2. If i pass acpi=off to the kernel, they work as expected. This is what is output from the drivers when they don't work: [ 7.878413] sky2 driver version 1.23 [ 7.884402] sky2 0000:07:00.0: enabling device (0000 -> 0003) [ 7.889483] sky2 0000:07:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 7.894502] sky2 0000:07:00.0: setting latency timer to 64 [ 7.894555] sky2 0000:07:00.0: unsupported chip type 0xff [ 7.899554] sky2 0000:07:00.0: PCI INT A disabled [ 7.904379] sky2: probe of 0000:07:00.0 failed with error -95 [ 8.857709] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 1.3.27kds [ 8.863357] iwlagn: Copyright(c) 2003-2009 Intel Corporation [ 8.875763] iwlagn 0000:08:00.0: enabling device (0000 -> 0002) [ 8.881477] iwlagn 0000:08:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 8.887083] iwlagn 0000:08:00.0: setting latency timer to 64 [ 8.887128] iwlagn 0000:08:00.0: Detected Intel Wireless WiFi Link 5100AGN REV=0xFDFFFFFF [ 9.073995] iwlagn 0000:08:00.0: Failed, HW not ready [ 9.080292] iwlagn 0000:08:00.0: PCI INT A disabled Attached are the complete dmesg and lspci -v output. This is using the SuSE repos version of 2.6.31-rc5 but i tried the vanilla kernel packages and the same happens. Anything i can help with to resolve this, let me know. This bug took out all my onboard networking so i'm now using a USB wifi stick. Thanks