Comment 15 for bug 1253155

FWIW:

I also installed the lowlatency version of kernel 3.19, and that dmesg doesn't show the lines "Request for unknown module key 'Magrathea: Glacier signing key:"

sander@superstreamer:~$ uname -a
Linux superstreamer 3.19.0-031900-lowlatency #201502091451 SMP PREEMPT Mon Feb 9 14:58:45 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

sander@superstreamer:~$ dmesg | grep -i glacier
[ 6.957630] Loaded X.509 cert 'Magrathea: Glacier signing key: 4b8b0790309384d5db8e13c15cd6ff49eeeeef07'

To be complete: before 3.19 I was running 3.19-rc7, and that dmesg neither showed the lines "Request for unknown module key 'Magrathea: Glacier signing key:"
So it's something specific to 3.19 generic (amd64)?