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Date:      Wed, 10 Feb 2016 09:51:01 +0000 (UTC)
From:      Greg Quinlan <gwq_uk@yahoo.com>
To:        "freebsd-current@freebsd.org" <freebsd-current@freebsd.org>
Subject:   Open Sound System - OSS "soundon" command causes KERNEL PANIC FreeBSD-11
Message-ID:  <160965484.1978477.1455097861791.JavaMail.yahoo@mail.yahoo.com>
References:  <160965484.1978477.1455097861791.JavaMail.yahoo.ref@mail.yahoo.com>

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 =20
 Hi,

I haven't seen a Kernel Panic like this for a long time... i.e. repeatable =
and due to a single command.

I have compiled the port /usr/ports/audio/oss and installed it on FreeBSD11=
.

A ran  /usr/local/sbin/ossdetect which created the file /usr/local/lib/oss/=
etc/installed_drivers.

Contents:
Code:oss_hdaudio #Intel High Definition Audio (CPT)

When i run  /usr/local/sbin/soundon

The system panics..

Code:osscore.ac97_amplifier=3D"0"
panic: Lock (sx) module subsystem lock sx lock not locked 0 /usr/src/sys/ke=
rn/kern_module.c:219
cpu_id =3D 1
:


audio/oss Build 4.2-build2011

Any ideas?

I have taken out any reference to sound in a custom=C2=A0 kernel
# Sound support
#device  sound  # Generic sound driver (required)
#device  snd_cmi  # CMedia CMI8338/CMI8738
#device  snd_csa  # Crystal Semiconductor CS461x/428x
#device  snd_emu10kx  # Creative SoundBlaster Live! and Audigy
#device  snd_es137x  # Ensoniq AudioPCI ES137x
#device  snd_hda  # Intel High Definition Audio
#device  snd_ich  # Intel, NVidia and other ICH AC'97 Audio
#device  snd_via8233  # VIA VT8233x Audio


 # make buildkernel KERNCONF=3DGENERIC
 # make installkernel KERNCONF=3DGENERIC
Thanks=20
=C2=A0GQ



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