So I apparently missed two most important differences between good and bad boots. On Tue, Feb 26, 2013 at 09:03:48PM +0100, Jan Sembera wrote: > [ 2.877438] scsi6 : pata_atiixp > [ 2.881369] scsi7 : pata_atiixp > > [ 2.391535] scsi6 : pata_acpi > [ 2.391994] scsi7 : pata_acpi pata-acpi doesn't play very well with this controller. Disabling it in kernel and rebooting (even with 3.8) provided completely working kernel. So either this driver shouldn't bind pata-acpi and leave it on pata-atiixp as before (some kind of blacklisting needed?), or it needs some fixing to work nicely with this controller. As a workaround for now, I'll just not compile PATA_ACPI into the kernel. 00:14.1 IDE interface: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 IDE Controller (rev 40) (prog-if 8a [Master SecP PriP]) Subsystem: ASUSTeK Computer Inc. Device 8496 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 32 Interrupt: pin B routed to IRQ 17 Region 0: I/O ports at 01f0 [size=8] Region 1: I/O ports at 03f4 [size=1] Region 2: I/O ports at 0170 [size=8] Region 3: I/O ports at 0374 [size=1] Region 4: I/O ports at f100 [size=16] Kernel driver in use: pata_atiixp -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html