I''m just a newb at xen, but here''s what I can tell you from my
own
experience getting xend going:
The appropriate features for evtchn and gntdev must be turned on in
the kernel. Check
/boot/config-`uname -r` to see if CONFIG_XEN_GNTDEV=y and
CONFIG_XEN_DEV_EVTCHN=m (maybe y is okay? I''m not sure). Just do it
to verify that the precompiled kernel has the options you need. If
not, you''ll need
to find one that does.
On Sun, Jan 6, 2013 at 6:00 AM, <xen-users-request@lists.xen.org> wrote:
>
> Message: 2
> Date: Sat, 5 Jan 2013 18:22:16 -0000
> From: "Yiming Zhang" <sdiris@gmail.com>
> To: <xen-users@lists.xen.org>
> Subject: [Xen-users] xenstored and xend cannot start (no gntdev found)
> Message-ID: <001d01cdeb71$97e40f70$c7ac2e50$@gmail.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Dear all, I want to build xen 3.4.4 on cent0s5.8 (kernel 2.6.18) and I did
> the following:
>
> # yum install kernel-xen
> # make xen tools stubdom
> # make install-xen install-tools install-stubdom
>
> After reboot, I successfully get into the new dom0 kernel. However, it
> seems
> "xm list" cannot work and xend failed to start.
>
> # xend start
> xend-debug.log says "sysctl operation failed - need to rebuild the
> user-space tool set?"
> # xenstored
> I get "FATAL: Failed to initialize dom0 state: Invalid argument"
>
> I googled the problem. Wiki says two device nodes, evtchn and gntdev
> ,should
> exist. But I can find only "evtchn" either by "ls
/proc/xen/" or by "cat
> /proc/misc". So I guess it is because of the lack of gntdev? But I
don''t
> know how to add it. (I installed the precompiled kernel so I don''t
want to
> recompile it. It must be another nightmare...)
>
> Can someone give me some advice? Thanks!
> Yiming
>
>
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