Subject: Re: bizarre copyout bug(?)
To: der Mouse <mouse@Rodents.Montreal.QC.CA>
From: None <>
List: tech-kern
Date: 05/14/2001 02:38:20
> due to a copyout glitch.
> It seems that copyout() can fail even when passed a zero length, if the
> userland pointer is pointing into kernel space.  At least on the sparc.

i think it's correct behavior.
> Is this as it should be?  If so, I'd recommend that copyout(9) be much
> more noisy about it, as traditionally bcopy-style routines don't care
> what their pointers are when they aren't copying anything.  (And if
> not, at least one port has a bug to fix. :-)
> /~\ The ASCII				der Mouse
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