Messages in this thread | | | Subject | Re: [RFC] relinquish_fs() syscall | From | Arjan van de Ven <> | Date | Tue, 30 Nov 2004 14:44:33 +0100 |
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On Tue, 2004-11-30 at 05:27 -0800, Mitchell Blank Jr wrote: > Alan Cox wrote: > > With CAP_SYS_RAWIO I can ask the IDE controller to DMA into the kernel > > as one example. > > Can you really do that on normal file descriptors? Weird. I'd have thought > you'd need to open /dev/hd* to do that.
inb/outb after iopl.
> Is AF_UNIX in a separate namespace? My understanding (from reading > unix_find_other()) is that unless you can create a UNIX socket in your > filesystem you're going to have trouble creating new UNIX sockets.
iirc there are anonymous unix sockets...
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