NetBSD Problem Report #56297

From he@smistad.uninett.no  Sat Jul  3 16:45:48 2021
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Date: Sat,  3 Jul 2021 18:45:38 +0200 (CEST)
From: he@NetBSD.org
Reply-To: he@NetBSD.org
To: gnats-bugs@NetBSD.org
Subject: reboot doesn't
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>Number:         56297
>Category:       port-macppc
>Synopsis:       reboot doesn't
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-macppc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jul 03 16:50:00 +0000 2021
>Last-Modified:  Sun Jul 04 08:35:01 +0000 2021
>Originator:     he@NetBSD.org
>Release:        NetBSD 9.99.85
>Organization:
I try...
>Environment:
System: NetBSD malus.urc.uninett.no 9.99.85 NetBSD 9.99.85 (MALUS) #13: Tue Jun 29 13:05:35 CEST 2021  he@malus.urc.uninett.no:/usr/obj/sys/arch/macppc/compile/MALUS macppc
Architecture: powerpc
Machine: macppc
>Description:
	This is seen on a G4 MacMini.

	Rebooting via "shutdown -r" actually doesn't manage to reset
	the machine anymore.  Not sure when it stopped working...

	The kernel message buffer appears as usual, and ends with

[ 972.4223960] syncing disks... done
[ 972.4324031] unmounting file systems...
[ 972.6824017] unmounting done
[ 972.6824017] turning off swap... done
[ 972.6824017] rebooting

	But instead of actually rebooting, the display remains the
	same, and apparently the fan control is disabled, because the
	fan spins up.

>How-To-Repeat:
	See above.
>Fix:
	Sorry, don't know.

>Audit-Trail:
From: Michael <macallan@netbsd.org>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: port-macppc/56297: reboot doesn't
Date: Sun, 4 Jul 2021 01:57:12 -0400

 Hmm, works on my Quicksilver with a kernel built from yesterday's
 -current. I'll try the Minis later.

From: Rin Okuyama <rokuyama.rk@gmail.com>
To: gnats-bugs@netbsd.org, port-macppc-maintainer@netbsd.org,
 gnats-admin@netbsd.org, netbsd-bugs@netbsd.org, he@NetBSD.org
Cc: 
Subject: Re: port-macppc/56297: reboot doesn't
Date: Sun, 4 Jul 2021 15:15:06 +0900

 Also works on my Mac mini (but with some local patches for me).

 The failure may occur sometimes as reported in kern/55611?

 http://gnats.netbsd.org/55611

 Thanks,
 rin

From: Martin Husemann <martin@duskware.de>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: port-macppc/56297: reboot doesn't
Date: Sun, 4 Jul 2021 08:46:39 +0200

 I've seen it happen sometimes, but not really reproducable (on a G4 
 quicksilver).

 Martin

From: Havard Eidnes <he@NetBSD.org>
To: rokuyama.rk@gmail.com
Cc: gnats-bugs@netbsd.org, port-macppc-maintainer@netbsd.org,
 netbsd-bugs@netbsd.org
Subject: Re: port-macppc/56297: reboot doesn't
Date: Sun, 04 Jul 2021 10:33:56 +0200 (CEST)

 > Also works on my Mac mini (but with some local patches for me).

 Hm.

 > The failure may occur sometimes as reported in kern/55611?
 >
 > http://gnats.netbsd.org/55611

 Although as noted in my case, there is no panic, and the machine
 is still powered and the frame buffer contents is still shown.

 I'll see about updating to a newer kernel and re-test.

 Regards,

 - H=E5vard

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