Bug#505092: unkillable rred process

[Troy Benjegerdes <dahozer@gmail.com>]

I am also observing an unkillable rred proces..


root     27794  0.0  0.0  12472   556 ?        Ss   12:13   0:00
/usr/sbin/anacron -s
root     28322  0.0  0.0   4148   260 ?        S    12:18   0:00  \_
/bin/sh -c nice run-parts --report /etc/cron.daily
root     28323  0.0  0.0   4044   248 ?        SN   12:18   0:00
\_ run-parts --report /etc/cron.daily
root     28327  0.0  0.0   4148   356 ?        SN   12:18   0:00
   \_ /bin/sh /etc/cron.daily/apt
root     28415  0.0  0.0  23736  1460 ?        SN   12:21   0:02
       \_ apt-get -qq -y update
root     28419  0.0  0.0  31220   860 ?        SN   12:21   0:00
           \_ /usr/lib/apt/methods/http
root     28420  0.0  0.0  31220   840 ?        SN   12:21   0:00
           \_ /usr/lib/apt/methods/http
root     28421  0.0  0.0  31220   764 ?        SN   12:21   0:00
           \_ /usr/lib/apt/methods/http
root     28423  0.0  0.0  22828   664 ?        SN   12:21   0:00
           \_ /usr/lib/apt/methods/gpgv
root     28429  0.0  0.0  22812   708 ?        SN   12:21   0:00
           \_ /usr/lib/apt/methods/bzip2
root     28436 98.8  0.0  44764   592 ?        RN   12:21 155:33
           \_ /usr/lib/apt/methods/rred



What could possibly cause rred to hang in a way that kill -9 does not remove it?