grub-pc update causes mount hang

[Joel Roth <joelz@pobox.com>]

Hi list,

I've been upgrading my sid system. When grub goes
to regenerate /boot/grub/grub.cfg, mount uses 100% CPU 
and causes these processes to hang:

10064 pts/1    S      0:00 /bin/sh /usr/lib/os-probes/50mounted-tests /dev/sda4
10075 pts/1    R      7:33 mount -o ro -t ext4 /dev/sda4 /var/lib/os-prober/mount

fdisk -l /dev/sda returns:

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x27b11b56

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1            2048     2459647     1228800    7  HPFS/NTFS/exFAT
/dev/sda2   *     2459648    76180224    36860288+   7  HPFS/NTFS/exFAT
/dev/sda3        76180225    84357314     4088545   82  Linux swap / Solaris
/dev/sda4        84357315   625139711   270391198+   f  W95 Ext'd (LBA)
/dev/sda5        84357378   115073593    15358108   83  Linux
/dev/sda6       115073658   534504057   209715200   83  Linux
/dev/sda7       534504059   604654465    35075203+  83  Linux
/dev/sda8       604659712   625139711    10240000    7  HPFS/NTFS/exFAT

I would like to find out what (if anything) is wrong with
mount or with my disk partition.

Any advice would be very welcome.

Thanks for your help!

Joel



--
Joel Roth