Subject: Re: st driver somehow blocking interrupts *way* too long.
To: NetBSD tech-kern mailing list <tech-kern@netbsd.org>
From: Julian Coleman <jdc@coris.org.uk>
List: tech-kern
Date: 05/28/2003 10:23:52
> Now I'm sitting at home with a cheezy 5MB/sec SCSI DLT 2500 on
> an ancient bha host adapter, trying to restore a tape of some
> music files. I'm noticing not only time slip but a steady stream
> of "ohci0: one scheduling overruns".
Is this on alpha? I tried burning on CD on my PC164 the other week and,
while it was doing it, saw hundreds of messages along the lines of:
ohci0: 14 scheduling overruns
ohci1: 15 scheduling overruns
ohci0: 11 scheduling overruns
ohci1: 13 scheduling overruns
The CDR is on the IDE bus:
pciide0 at pci0 dev 11 function 0: CMD Technology PCI0646 (rev. 0x01)
pciide0: bus-master DMA support present
pciide0: primary channel wired to compatibility mode
atapibus0 at pciide0 channel 0: 2 targets
cd0 at atapibus0 drive 0: <RICOH DVD/CDRW MP9060, , 1.80> cdrom removable
cd0: 32-bit data port
cd0: drive supports PIO mode 4, DMA mode 2
pciide0: primary channel interrupting at isa irq 14
cd0(pciide0:0:0): using PIO mode 4, DMA mode 2 (using DMA data transfers)
So, if it's the same problem, it's definitely not related to the host adaptor.
J
--
My other computer also runs NetBSD
http://www.netbsd.org/