Date: Wed, 12 Sep 2001 17:15:05 -0400 (EDT) From: Brad Laue <brad@brad-x.com> To: <freebsd-stable@freebsd.org> Subject: Re: FIXME! snd_pcm.ko kernel panic Message-ID: <20010912171417.Y59539-100000@TMA-1.brad-x.com> In-Reply-To: <20010912004804.O31661-100000@TMA-1.brad-x.com>
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As an addendum this is repeatable using any sound chipset at all; it's an issue with the pcm driver itself - tried using a maestro3 card on an Inspiron 8100 notebook, same result. Brad // -- http://www.BRAD-X.com/ -- // On Wed, 12 Sep 2001, Brad Laue wrote: > Just wanted to point out that the snd_pcm kernel module is unloadable > while the sound device is in use, causing a total wipeout of the operating > system whenever the last application relinquishes the sound device. > > Also, modules such as snd_pcm.ko are loadable while their compiled in > counterparts are present in the kernel, causing similar issues; a modular > kernel needs some significant work done on it with respect to safegaurding > the load/unload of modules, when they're required, and when they're not to > be loaded at all. > > On the plus side, the module, when loaded alongside snd_via82c686.ko, > plays sound without a skip since the -RC releases of FreeBSD came out. I > can now remove my ISA sound card and use the onboard sound again! > > Please try to include some sort of fix before -RELEASE; to replicate the > issue, do this: > > Compile a kernel with no sound devices whatsoever; my system uses the > VIA82C686C chipset, use similar if possible. > > snd_via82c686_load="YES" in loader.conf; play a sound using mpg123 or > similar program > > kldunload snd_pcm.ko, ctrl-c mpg123 > > The system will go down either immediately after the sound stops, or when > trying to play another. > > Thanks, > Brad > > // -- http://www.BRAD-X.com/ -- // > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-stable" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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