> > Hmm... interesting....
> >
> > I only took a brief look at it. I suppose I can ensure user space address 
> > is wired and then copyout() can be called with mutex held
>
> >No, you cannot do this, at least without making the kernel to panic.
> User might unmap the wired mapping at any time still.

Kostik,

i was thinking along the lines of vslock/vsunlock and copyout_nofault.
basically similar to the sysctl code. do you think this would not
work?

thanks,
max
_______________________________________________
freebsd-current@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"

Reply via email to