Re: Bug#391686: ITP: ipw3945-daemon -- Binary userspace regulatory daemon for Intel PRO/Wireless 3945ABG cards
On 10/09/06 08:38:46AM +0200, Reinhard Tartler wrote:
> Jim Crilly <jim@why.dont.jablowme.net> writes:
>
> > Intel's daemon isn't as bad as the Atheros HAL or nVidia's blob
>
> Could you please elaborat on that? why is ath_hal.ko or nvidia.ko worse
> than intel's daemon?
>
> The only real difference is that intel's daemon doesn't run in
> kernelspace. Why is is that better?
>
For that very reason, if nvidia.ko goes nuts it can scribble all over
kernel memory and cause anything from random reboots to filesystem
corruption. But since Intel's daemon runs in userspace if it goes nuts it'll
just segfault, technically I guess it could open /dev/kmem or /dev/mem but
the chances of that happening are virtually 0.
Jim.
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