Bug#791869: Infinite hang on update-initramfs

[Ben Caradoc-Davies]

I have found new GRAVE manifestation of this bug. Rather than create a 
new bug report, I am adding it to this list. Should this be a new new 
GRAVE bug.

Today I upgraded linux-image-4.0.0-2-amd64 to 4.0.8-2 and encountered an 
infinite hang in initramfs-tools while it was running vgs:

/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-4.0.0-2-amd64

I was able to proceed only by opening another terminal and running 
"pvscan --cache".

end of ps -ef during the scan (sorry no ww):

root     11263 10150  0 09:10 pts/1    00:00:00 /usr/bin/dpkg 
--status-fd 20 --c
root     11265 11263  0 09:10 pts/1    00:00:00 /usr/bin/perl -w 
/usr/share/debc
root     11271 11265  0 09:10 pts/1    00:00:00 /usr/bin/perl 
/var/lib/dpkg/info
root     11280 11271  0 09:10 pts/1    00:00:00 run-parts --report 
--exit-on-err
root     18919 11280  0 09:12 pts/1    00:00:00 /bin/sh 
/usr/sbin/grub-mkconfig
root     18927 18919  0 09:12 pts/1    00:00:00 /usr/sbin/grub-probe 
--device /d
root     18928 18927  0 09:12 pts/1    00:00:00 vgs --options 
vg_uuid,pv_name --

Kind regards,

-- 
Ben Caradoc-Davies <ben at transient.nz>
Director
Transient Software Limited <http://transient.nz/>
New Zealand