Messages in this thread | | | Subject | Re: Honest does not pay here ... | From | Alan Cox <> | Date | 08 Jan 2003 01:41:04 +0000 |
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On Wed, 2003-01-08 at 00:30, Larry McVoy wrote: > > I may be showing my ignorance here (won't be the first time) but this makes > me wonder if Linux could provide a way to do "user level drivers". I.e., > drivers which ran in kernel mode but in the context of a process and had > to talk to the real kernel via pipes or whatever. It's a fair amount of > plumbing but could have the advantage of being a more stable interface > for the drivers.
Its actually quite messy because level triggered interrupts create priority handling problems and memory allocations create all sorts of amazing deadlocks
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