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Date: Sat, 23 Jan 2016 10:16:43 +0530
From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
To: Dan Williams <dan.j.williams@intel.com>, Christoph Hellwig <hch@lst.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Rik van Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>,
        Jerome Glisse <j.glisse@gmail.com>, markk@clara.co.uk, jroedel@suse.de,
        bp@suse.de, linux-kernel@vger.kernel.org
Subject: [BUG] Devices breaking due to CONFIG_ZONE_DEVICE
Message-ID: <20160123044643.GA3709@sudip-pc>
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Hi All,
Commit 033fbae988fc ("mm: ZONE_DEVICE for "device memory"") has
introduced CONFIG_ZONE_DEVICE while sacrificing CONFIG_ZONE_DMA.
Distributions like Ubuntu has started enabling CONFIG_ZONE_DEVICE and
thus breaking parallel port. Please have a look at
https://bugzilla.kernel.org/show_bug.cgi?id=110931 for the bug report.

Apart from parallel port I can see some sound drivers will also break.

Now what is the possible solution for this?

Regards
Sudip