Hi,

On

 linux:~ # /etc/init.d/xencommons start
Starting C xenstored...WARNING: Failed to open connection to gnttab
Internal error: : 96000021 [#1] SMP
Modules linked in:
CPU: 0 PID: 520 Comm: xenstored Not tainted 3.14.0+ #4
task: ffffffc002c86080 ti: ffffffc000b3c000 task.ti: ffffffc000b3c000
PC is at clear_bit+0x14/0x30
LR is at evtchn_fifo_clear_pending+0x2c/0x38


This seems to be a standard problem, but googling am not able to find how
to enable gnttab in linux.
Is this grant table ?
drivers/xen/Makefile already has obj-y
obj-y   += grant-table.o

-regards
Manish