Messages in this thread | | | Date | Wed, 28 Apr 1999 03:32:03 -0700 (PDT) | From | Massoud Asgharifard <> | Subject | Re: Linux 2.2.5 crash via /dev/port |
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This happens because 'cat /dev/ports' reads one byte from all available ports (i.e. 0 - 65535) which means conflicting with kernel and disabling keyboard, network interface and other devices. I suppose this device is used to give LIMITED access to device drivers residing in user-space, which need to read data from/write data to specific ports.
regards,
Massoud "masu" Asgharifard.
--- Andreas Schwab <schwab@issan.cs.uni-dortmund.de> wrote: > Werner LEMBERG <sx0005@studserver.uni-dortmund.de> > writes: > > |> OK, I've closed my Laptop, opened it again, see > this message and then > |> do a > |> > |> cat /dev/port > |> > |> and Linux crashes, i.e., it doesn't respond to > any key combinations. > > Don't do it then. > > -- > Andreas Schwab > "And now for something > schwab@issan.cs.uni-dortmund.de > completely different" > schwab@gnu.org > > - > To unsubscribe from this list: send the line > "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.rutgers.edu > Please read the FAQ at http://www.tux.org/lkml/ >
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