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Re: crash in timerfd building pandoc / ghc94 related
On Mon, Feb 06, 2023 at 09:19:26PM -0500, Mouse wrote:
> Perhaps the simplest is
>
> dd if=/dev/urandom bs=65536 of=/dev/mem
>
> but there are others.
>
> Yet I can't help feeling that there is some sense in which it *is* fair
> to say that userland should never be able to crash the kernel. I have
> been mulling over this paradox for some time but have not come up with
> an alternative phrasing that avoids the reasonable crashes while still
> capturing a significant fraction of the useful meaning.
Arguably, /dev/mem just shouldn't exist... I'm not sure there are
actually reasonable crashes.
--
David A. Holland
dholland%netbsd.org@localhost
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