Comment # 10 on bug 909883 from grant k

Testing with a DomU guest booted to

 Kernel 3.18.6-1.gec2a744-xen

, (can't test with 3.19.x; DomU guests no longer boot to a usable state), this
!boot issue still exists as reported.

upgrading to dracut from repo you provided,

 ...
 The following package is going to change vendor:
  dracut  037-17.9.1 -> 037-255.1  openSUSE ->
obs://build.opensuse.org/home:tsaupe
 ...

enabling journal_checksum in /etc/fstab for "/"

-    /dev/xvdc   /ext3    noatime,acl,user_xattr,barrier=1  1 1
+    /dev/xvdc   /ext3    noatime,acl,user_xattr,barrier=1,journal_checksum  1
1

then

 mkinitrd
 reboot

the DomU guest unfortunately still fails to boot, as above