Re: port-macppc/59656: "eject cd" hangs Power Mac G5

["Andreas Gustafsson via gnats" <gnats-admin%NetBSD.org@localhost>]

The following reply was made to PR port-macppc/59656; it has been noted by GNATS.

From: Andreas Gustafsson <gson%gson.org@localhost>
To: Martin Husemann <martin%duskware.de@localhost>
Cc: gnats-bugs%netbsd.org@localhost
Subject: Re: port-macppc/59656: "eject cd" hangs Power Mac G5
Date: Sun, 5 Oct 2025 11:25:38 +0300

 Martin Husemann wrote:
 > Doesn't mean much, but just for an additional data
 > point: I can't reproduce it on a PowerMac7,3:
 > 
 > wdc0 at pci5 dev 13 function 0: interrupting at irq 39
 > atabus4 at wdc0 channel 0
 > cd0 at atapibus0 drive 0: <SONY DVD RW DW-U21A, , AADB> cdrom removable
 > cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 4 (Ultra/66)
 > cd0(wdc0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 4 (Ultra/66) (using DMA)
 
 It's not clear from your dmesg fragment what atapibus0 is attached to, but
 in my case it's atabus0, and my wdc0 is at pci3, not pci5.  From my dmesg:
 
 [     1.000000] mainbus0 (root): PowerMac7,3
 (...)
 [     1.000000] wdc0 at pci3 dev 13 function 0: interrupting at irq 39
 (...)
 [     1.000000] atabus0 at wdc0 channel 0
 [     1.169996] atapibus0 at atabus0: 2 targets
 [     1.180005] cd0 at atapibus0 drive 0: <HL-DT-ST DVD-RW GWA-4082B, K29496G1507, C03D> cdrom removable
 
 Another differences is that my machine loads ofwboot.xcf and the
 kernel from CD, and I think yours does not, so maybe it's a question
 of the boot process leaving the controller or drive in a state that
 NetBSD can't handle.
 -- 
 Andreas Gustafsson, gson%gson.org@localhost