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Date: Tue, 6 Feb 2001 17:26:02 -0800 (PST)
From: Linus Torvalds <torvalds@transmeta.com>
To: Ingo Molnar <mingo@elte.hu>
cc: "Jeff V. Merkey" <jmerkey@vger.timpanogas.org>, Jens Axboe <axboe@suse.de>,
        "Stephen C. Tweedie" <sct@redhat.com>, Ben LaHaise <bcrl@redhat.com>,
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        kiobuf-io-devel@lists.sourceforge.net
Subject: Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound event wait
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On Wed, 7 Feb 2001, Ingo Molnar wrote:
> 
> most likely some coding error on your side. buffer-size mismatches should
> show up as filesystem corruption or random DMA scribble, not in-driver
> oopses.

I'm not sure. If I was a driver writer (and I'm happy those days are
mostly behind me ;), I would not be totally dis-inclined to check for
various limits and things.

There can be hardware out there that simply has trouble with non-native
alignment, ie be unhappy about getting a 1kB request that is aligned in
memory at a 512-byte boundary. So there are real reasons why drivers might
need updating. Don't dismiss the concerns out-of-hand.

		Linus

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