hdc: lost interrupt

ciaranhearne · 09-21-2003, 12:51 PM

I am running slackware 9.0 with the bare 2.4.20 kernel. This worked fine, however when i upgraded my kernel to 2.4.22 (downloaded from kernel.org not the slackware ftp's) i get the message hdc: lost interrupt and hdb: lost interrupt at startup. This greatly increases the bootime and the CDROM drivers cannot be accessed.

I have an ECS K7S5A motherboard with a SiS 735 chipset and an athalon xp 1600 processor.

geoff_f · 09-23-2003, 06:46 AM

Try turning off APIC (Advanced Programmable Interrupt Controller) in the BIOS. It is only useful for multiple CPU setups, and it is known to cause problems with some motherboards with only a single CPU. If you can't turn it off in the BIOS, pass 'noapic' as a kernel boot parameter. Another possibility: make sure that Plug n Play OS is set to No/Disabled in the BIOS.

ciaranhearne · 09-23-2003, 03:08 PM

Thanx, your suggestion solved the problem.

geoff_f · 09-23-2003, 04:12 PM

Glad to be of help. For my (and others') interest, what was the exact fix in your case? Did you disable APIC in the BIOS, pass 'noapic' as a kernel boot parameter, or turn off Plug n Play in the BIOS? Or did you need to do a couple of these?

ciaranhearne · 09-26-2003, 12:29 PM

I only neede to disable APIC in the BIOS. The system worked fine with Plug n Play OS enabled so i did not turn it off.