Re: kern/40440: cd0(piixide0:1:0): illegal request

[Andreas Gustafsson <gson%gson.org@localhost>]

The following reply was made to PR kern/40440; it has been noted by GNATS.

From: Andreas Gustafsson <gson%gson.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: Reinoud Zandijk <reinoud%13thmonkey.org@localhost>
Subject: Re: kern/40440: cd0(piixide0:1:0): illegal request
Date: Thu, 9 Jul 2009 11:05:59 +0300

 Installing today's current (CVS date 2009.07.09.02.15.48) in qemu
 0.9.1 (i386) I am still seeing problems that appear to be related to
 this bug, although the error messages are somewhat different from when
 I originally reported it.
 
 When sysinst mounts the virtual CD-ROM, it spews error messages on the
 screen, and the mount command, which used to be instantaneous, takes
 about 2 minutes and 30 seconds (!) to complete.
 
 Here is an ASCII screenshot of the sysinst output:
 
        Status: Running
       Command: /sbin/mount -rt cd9660 /dev/cd0a /mnt2
 
   
--------------------------------------------------------------------------------
   wdc_atapi_intr: warning: reading only 0 of 8 bytes
   piixide0:1:0: lost interrupt
   type: atapi tc_bcount: 0 tc_skip: 8
   wdc_atapi_intr: warning: reading only 0 of 8 bytes
   piixide0:1:0: lost interrupt
   type: atapi tc_bcount: 0 tc_skip: 8
   wdc_atapi_intr: warning: reading only 0 of 8 bytes
   piixide0:1:0: lost interrupt
   type: atapi tc_bcount: 0 tc_skip: 8
   wdc_atapi_intr: warning: reading only 0 of 8 bytes
   piixide0:1:0: lost interrupt
   type: atapi tc_bcount: 0 tc_skip: 8
   wdc_atapi_intr: warning: reading only 0 of 8 bytes
 
 After the two-and-a-half-minute delay, the mount will finally
 complete and sysinst will continue.
 
 If I run "dmesg" after the install completes, its output contains
 no relevant error messages; the only lines concerning the CD-ROM
 drive are:
 
   atapibus0 at atabus1: 2 targets
   cd0 at atapibus0 drive 0: <QEMU CD-ROM, QM00003, 0.9.1> cdrom removable
   cd0: 32-bit data port
   cd0(piixide0:1:0): using PIO mode 3
 
 -- 
 Andreas Gustafsson, gson%gson.org@localhost