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Date: Fri, 09 May 2008 03:37:54 +0200
From: Rene Herman <rene.herman@keyaccess.nl>
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To: Glauber Costa <gcosta@redhat.com>
CC: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
       Pete Clements <clem@clem.clem-digital.net>,
       Takashi Iwai <tiwai@suse.de>,
       Linux Kernel <linux-kernel@vger.kernel.org>,
       ALSA devel <alsa-devel@alsa-project.org>
Subject: 2.6.26-rc1 regression: ISA DMA broken (bisected)
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Good day.

commit 8779f2fc3b84ebb6c5181fb13d702e9944c16069

"x86: don't try to allocate from DMA zone at first"

breaks all of ISA DMA. Or all of ALSA ISA DMA at least. All
ISA soundcards are silent following that commit -- no error
messages, everything appears fine, just silence.

It won't just revert due to 32/64 merge.

Rene.