On Mon, Dec 08, 2014 at 04:50:34PM +0800, Amos Kong wrote: > When I hotunplug a busy virtio-rng device or try to access > hwrng attributes in non-smp guest, it gets stuck. > > My hotplug tests: > > | test 0: > | hotunplug rng device from qemu monitor > | > | test 1: > | guest) # dd if=/dev/hwrng of=/dev/null & > | hotunplug rng device from qemu monitor > | > | test 2: > | guest) # dd if=/dev/random of=/dev/null & > | hotunplug rng device from qemu monitor > | > | test 4: > | guest) # dd if=/dev/hwrng of=/dev/null & > | cat /sys/devices/virtual/misc/hw_random/rng_* > | > | test 5: > | guest) # dd if=/dev/hwrng of=/dev/null > | cancel dd process after 10 seconds > | guest) # dd if=/dev/hwrng of=/dev/null & > | hotunplug rng device from qemu monitor > | > | test 6: > | use a fifo as rng backend, execute test 0 ~ 5 with no input of fifo All applied. Thanks a lot! -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
