Messages in this thread |  | | Date | Wed, 7 Aug 1996 09:43:01 +0300 (EET DST) | From | Linus Torvalds <> | Subject | Re: Two 2.0.10 problems? |
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On 6 Aug 1996, Joe Fouche wrote: > > 1) I ran 'strings /proc/kcore | less' once and the system seemed > to die horribly. Someone might want to check this out, but I'm > not sure if it's reproducible because I'm not willing to try > it again :)
This is not a kernel problem.
/proc/kcore contains the kernel address space, and that address space _includes_ any memory-mapped devices (the 640k-1MB range, for example). As such, uncontrolled access to that file will result in undefined behaviour (that's partly why the file is only root-readable).
The same thing can happen with /dev/mem and /dev/port.
> 2) The lp driver seems to behave badly when my printer is turned > on. I'm using an HP DeskJet 540. Basically, when the driver > is installed (I've seen the same behavior via module or built-in > support), it will say > > lp: Driver configured but no interfaces found. > > instead of > > lp1 at 0x378 (polling) > > In short, the driver only starts correctly if I have the printer > off when it starts. This is a bug, right? :)
Sounds like a bug. Anybody have an idea about this one?
Linus
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