Description of problem: ahci gives error -22 while booting. Version-Release number of selected component (if applicable): kernel-2.6.23-0.164.rc5.fc8 How reproducible: Always Steps to Reproduce: 1. Boot Fedora Actual results: Diagnostic messages in dmesg: ahci 0000:00:1f.2: version 2.3 ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 21 ACPI: PCI interrupt for device 0000:00:1f.2 disabled ahci: probe of 0000:00:1f.2 failed with error -22 ata_piix 0000:00:1f.2: version 2.12 ata_piix 0000:00:1f.2: MAP [ P0 P2 IDE IDE ] ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 21 PCI: Setting latency timer of device 0000:00:1f.2 to 64 scsi0 : ata_piix scsi1 : ata_piix Expected results: No diagnostics Additional info: lspci -v gives: 00:1f.2 IDE interface: Intel Corporation 82801FBM (ICH6M) SATA Controller (rev 03) (prog-if 80 [Master]) Subsystem: Toshiba America Info Systems Unknown device 0001 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 21 I/O ports at 01f0 [size=8] I/O ports at 03f4 [size=1] I/O ports at 0170 [size=8] I/O ports at 0374 [size=1] I/O ports at afa0 [size=16] Capabilities: [70] Power Management version 2 Diagnostics reminiscent of old bugs #180773 and #178434, dating back to FC5, with error code different from -22.
It looks like the ata_piix driver loads successfully after that error. Does the system work OK even with the errors?
Yes, unlike the two bugs I referred to. That's why I gave it a low severity. But I was wondering if I might be getting less than optimal performance from my hard disks.
This is normal for this controller. It supports both legacy and AHCI mode, and both drivers will be tried.