... > +pci-align-bar-settings-for-legacy-mode-ide.patch > +pci-align-bar-settings-for-legacy-mode-ide-fix.patch > > 2.6.23 material, but these belong to subssytem trees > ... These broke the IDE controller , using libata on my Dell Workstation .. Reverting both fixes the problem. .. [ 28.828484] 0000:00:1f.1: cannot adjust BAR0 (not I/O) [ 28.828487] 0000:00:1f.1: cannot adjust BAR1 (not I/O) [ 28.828489] 0000:00:1f.1: cannot adjust BAR2 (not I/O) [ 28.828491] 0000:00:1f.1: cannot adjust BAR3 (not I/O) ... [ 44.564308] ata_piix 0000:00:1f.1: version 2.11 [ 44.564365] ata_piix 0000:00:1f.1: no available native port ... And my CDROM and second ide disc gone. $ lspci -vvvxxx ... 00:1f.1 IDE interface: Intel Corporation 82801BA IDE U100 Controller (rev 04) (prog-if 80 [Master]) Subsystem: Dell Unknown device 00d8 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR-