Subject: port-i386/552: speaker driver panics kernel
To: None <>
From: James [Greywolf] Graham <>
List: netbsd-bugs
Date: 11/03/1994 12:20:05
>Number:         552
>Category:       port-i386
>Synopsis:       speaker driver panics kernel
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    gnats-admin (GNATS administrator)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Nov  3 12:20:03 1994
>Originator:     James Graham (
Autodesk, Inc.
>Release:        1.0
>	Hardware: Compaq Deskpro/66M (486DX), 2x(fd), IDE/ESDI/ST506, AHA1540CF
System:  NetBSD deep_thought 1.0 NetBSD 1.0 (DEEP_THOUGHT) #2: Fri Oct 28 15:37:42 PDT 1994 greywolf@deep_thought:/usr/src/sys/arch/i386/compile/DEEP_THOUGHT i386

	If you cat to /dev/speaker and start feeding it control sequences
	to play notes, eventually it crashes with the message:

		Fatal integer overflow in supervisor mode

	and proceeds to dump core.  Never mind that savecore can't decode
	the core which is dumped (that's another bug)
	cat > /dev/speaker