Distribution: Debian (sarge) Hardware Environment: Asus SK8N nForce-3 Promise SATA (PDC20378), AMD Opteron Problem Description: When writing to disk (sometimes) I get the following error and then system semi freezes. I look as I can't use the disks. I've got the following error: ata2: DMA timeout scsi1: ERROR on channel 0, id 0, lun 0, CDB: Write(10) XX XX XX XX XX XX Current sdb: sense key Medium Error Additional sense: Write error - auto reallocation failed end_request: I/O error, dev failed sdb, sector XXXXXXXX The same error on ata1,scsi0 and sda. The XX above are different numbers every time. I have tried with both acpi on and off. No success. The disks are completly new and I have also changed one of the to another new disk, without success.
Created attachment 3365 [details] lilo_sda.conf
I got the similiar timeouts on my IDE disk when enabling ACPI. Machine/BIOS: HP Pavilion zv5139 CPU: AMD XP-M 3000+ (crippled AMD64 version) Chipset: NForce3 Kernels tried: 2.6.7, 2.6.8, 2.6.9-rc1 It seems to be something going wrong between ACPI and IO-APIC. I've currently solved the issue by disabling IO-APIC, since I need ACPI for Powernow-k8. Before disabling IO-APIC, the full list of symptoms included: * DMA timeouts on disk * Loss of PS/2 input on some reboots (rmmod psmouse and modprobe psmouse, reenabled keyboard and mouse again after loss) * Occational complete system lock-ups
so the system works with "noapic" and presumably it workes with "acpi=off" because that also disabled the IOAPIC with it, yes?
same with 2.6.9?
acpi_skip_timer_override helps here, apparently all overrides on nForce3 boards are bogus. A fix has already gone in for x86_64.
please re-open if still an issue in 2.6.10 or later.