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#28 can't use the i810_rng driver

critical
closed-out-of-date
Jeff Garzik
misc Intel (4)
5
2001-11-01
2001-05-09
Tomas Mraz
No

I can't use the i810_rng driver. I am using the
2.4.5-pre1 kernel. I have compiled the driver as a
module. It is successfully inserted after modprobe but
when I try to cat /dev/intel_rng it says 'No such
device'. I have I815E chipset on the motherboard.
Then I've tried to issue rmmod i810_rng and the machine
issued itself a reboot without any proper shutdown.
So there is something completely wrong with the driver...

Discussion

  • Jeff Garzik
    Jeff Garzik
    2001-05-11

    • assigned_to: nobody --> jgarzik
     
  • Jeff Garzik
    Jeff Garzik
    2001-05-11

    Logged In: YES
    user_id=17443

    What does "ls -l /dev/intel_rng" say? Perhaps your
    /dev/intel_rng does not exist, or is not set up correctly.

    I will look into the problem with shutdown, that is very
    curious.

     
  • Tomas Mraz
    Tomas Mraz
    2001-05-11

    Logged In: YES
    user_id=4197

    Here is the ls -l output:
    crw-r--r-- 1 root root 10, 183 May 9 15:27
    /dev/intel_rng

    So it's probably OK.

     
  • Philipp Rumpf
    Philipp Rumpf
    2001-05-11

    Logged In: YES
    user_id=14521

    I can't see anything short of memory corruption which would
    cause the reboot-on-rmmod problem. Is it reproduceable ?

     
  • Tomas Mraz
    Tomas Mraz
    2001-05-14

    Logged In: YES
    user_id=4197

    This time after rmmod it printed this message:
    Trying to vfree() nonexistent vm area (c88e3000)
    and after another modprobe i810_rng it prints:
    i810_rng: cannot disable RNG, aborting

    I have Intel 815E chipset. Should it have the rng device or not?

     
  • Jeff Garzik
    Jeff Garzik
    2001-11-01

    • status: open --> closed-out-of-date