Subject: Re: bizarre copyout bug(?)
To: der Mouse <mouse@Rodents.Montreal.QC.CA>
From: None <firstname.lastname@example.org>
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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