Subject: Re: st driver somehow blocking interrupts *way* too long.
To: None <>
From: Thor Lancelot Simon <>
List: tech-kern
Date: 05/28/2003 12:11:16
On Wed, May 28, 2003 at 10:23:52AM +0100, Julian Coleman wrote:
> > 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:

No, this is a SCSI tape on a BusLogic parallel-SCSI host adapter on an
i386, a Tyan Tiger MP with a 1.3GHz Athlon XP to be precise.  It's 
interesting that you're seeing a similar symptom with a scsipi device
attached to an ATAPI bus, though.