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Date:      Thu, 19 Apr 2001 16:02:18 -0700 (PDT)
From:      Scott Hazen Mueller <scott@zorch.sf-bay.org>
To:        freebsd-current@freebsd.org
Subject:   sound driver breakage/megapatch
Message-ID:  <200104192302.f3JN2Ik56603@zorba.sf-bay.org>

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It looks like the recent sound driver megapatch broke (at least) the Neomagic
256AV driver.  With a cvsup from yesterday, trying to do play mp3 files got
trash that was vaguely recognizable as a seriously distorted version of the
original piece.  I did some trolling of the cvsweb and decided to roll back to
a fixed date (2001.03.24.00.00.00) before the megapatch.  I've rebuilt the
.ko files and unloaded/reloaded them; I now have working sound.

The failing sound also generated this error

Apr 19 15:09:31 zorba /boot/kernel/kernel: pcm0: play interrupt timeout, channel dead
Apr 19 15:19:00 zorba /boot/kernel/kernel: pcm0: play interrupt timeout, channel dead

The probe message "before" (removing megapatch) -

Apr 19 15:31:00 zorba /boot/kernel/kernel: pcm0: <NeoMagic 256AV> mem 0xfec00000-0xfecfffff,0xfe000000-0xfe3fffff irq 9 at device 8.1 on pci0

The probe message "after" (removing megapatch) -

Apr 19 15:53:00 zorba /boot/kernel/kernel: pcm0: <NeoMagic 256AV> mem 0xfec00000-0xfecfffff,0xfe000000-0xfe3fffff irq 9 at device 8.1 on pci0

And, somewhere in here, "hwintr went backwards" went away.

Hope this helps.

                                  \scott


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