Bug#760148: grub-common: grub-mount hangs forever, trying to mount ext4 partition, causing 100% CPU load

[Colin Watson]

On Fri, Sep 05, 2014 at 11:35:16PM +0200, Johannes Rohr wrote:
> Here is the output:

OK, so nothing especially obvious there - it runs to completion.  Let's
try reducing it.  If you run this as root:

  grub-mount /dev/sda9 /mnt
  [ -e /mnt/etc/lsb-release ]
  [ -e /mnt/servers/exec ]
  [ -f /mnt/minix ]
  [ -e /mnt/boot/image_big ]
  ls /mnt/lib*/ld*.so*
  ls /mnt/usr/lib*/ld*.so*
  [ -f /mnt/etc/system ]
  umount /mnt

... do you still get a hung grub-mount process at the end?  If so, try
eliminating commands between grub-mount and umount until you get down to
a minimal subset.  With luck this will let us work out which bits of the
filesystem in question are relevant, and make it possible to extract a
stripped-down copy for me to look at.

Thanks,

-- 
Colin Watson                                       [cjwatson at debian.org]