Subject: Re: kern/8217: periodic pciide pauses?
To: None <>
From: Matthias Scheler <>
List: netbsd-bugs
Date: 08/17/1999 21:53:13
In article <>, (Bill Sommerfeld) writes:
> the behavior reported in this PR has been observed on multiple
> systems by multiple users (myself, Perry Metzger, Mattias Scheler)
> During periods of heavy disk i/o to UDMA pciide drives, programs will
> periodically "freeze" for up to about 5 seconds and then start up
> again.

A few seconds ago I experienced this problem with a SCSI disk, too. It
happened while extracting a "tar" archive from a NFS filesystem to a
local filesystem on an UW SCSI disk. So it's obviously not related to
the PCI IDE driver.

I suppose it is more related to buffer management because all affected
boxes have lots of memory (either 128 or 256MB).

Matthias Scheler