Re: [xine-user] Re: why raw devices don't seek above 4GB (sometimes)

From: k.lichtenwalder@computer.org
Date: Tue Apr 17 2001 - 23:52:53 EST

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Alan Cox wrote:
>
> > I set up a raw device: raw /dev/raw/raw1 /dev/hdd
> > with /dev/hdd being my DVD drive.
> > Xine then does repeated llseeks on /dev/raw/raw1 until it gets above 4G.
> > Because /dev/raw/raw1 and the associated /dev/hdd both are on reiserfs,
> > and reiserfs has a 4G limit, llseek assumes the same for the associated
> > raw devices and returns from the llseek with EINVAL. Bang.
> > I don't know whether there's an easy solution.
>
> That sounds like /dev/raw/.. should have its own lseek method.

Yeah, while going to bed I thought that this can only be cured by doing
an raw-device specific lseek method, as lseek has no other means to find
out which device this really is. I guess I'll give it a try but I don't
know whether I'm up to it.

Klaus

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