[Fedora-xen] Dom0 kernels Xen Host connected via remote VNC Session

[Pasi Kärkkäinen]

On Sat, Jan 02, 2010 at 12:10:36PM -0800, Boris Derzhavets wrote:
>    > Basicly you should extract the initrd image, and change the "modprobe
>    drm"
>    > line to say "modprobe drm debug=255" in the init script. And then
>    > repack the initrd and use the modified initrd instead.
>    Done for Jeremy's 2.6.31.6  - initrd-2.6.31.6.img :-
> 
>    init has been modified
>             modprobe -q drm debug=255
>    Image rebuilt :-
>               find . | cpio -o -c | gzip -9 > /boot/initrd-2.6.31.6.img
>    Xen Host reloaded .
>    Dmesg reports now :-
> 
>    [drm] Initialized drm 1.1.0 20060810
>    [drm] radeon default to kernel modesetting.
>    [drm] radeon kernel modesetting enabled.
>    [drm:drm_init],
>    [drm:drm_get_dev],
>    xen: registering gsi 16 triggering 0 polarity 1
>    xen_allocate_pirq: returning irq 16 for gsi 16
>    xen: --> irq=16
>    xen_set_ioapic_routing: irq 16 gsi 16 vector 152 ioapic 0 pin 16
>    triggering 1 polarity 1
>    radeon 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
>    radeon 0000:01:00.0: setting latency timer to 64
>    [drm:drm_get_minor],
>    [drm:drm_get_minor], new minor assigned 64
>    [drm:drm_get_minor],
>    [drm:drm_get_minor], new minor assigned 0
>    [drm] radeon: Initializing kernel modesetting.
>    [drm:radeon_driver_load_kms] *ERROR* Failed to initialize radeon,
>    disabling IOCTL
>    [drm:drm_put_minor], release secondary minor 0
>    [drm:drm_put_minor], release secondary minor 64
>    radeon 0000:01:00.0: PCI INT A disabled
>    radeon: probe of 0000:01:00.0 failed with error -22
> 

Hmm.. isn't this the same output as earlier? Are you sure you used the
new initrd? It doesn't look like it..

You should get much more debug information from drm when it's loaded
with debug=255.

-- Pasi

>    Boris.
> 
>    --------------------------------------------------------------------------
> 
>    From: Pasi Kärkkäinen <pasik at iki.fi>
>    To: Boris Derzhavets <bderzhavets at yahoo.com>
>    Cc: fedora-xen at redhat.com; M A Young <m.a.young at durham.ac.uk>
>    Sent: Sat, January 2, 2010 3:19:43 AM
>    Subject: Re: [Fedora-xen] Dom0 kernels Xen Host connected via remote VNC
>    Session
>    On Fri, Jan 01, 2010 at 10:51:16AM -0800, Boris Derzhavets wrote:
>    >    I've just applied suggested patch to the most recent clone of
>    Jeremy's tree
>    >    and rebuilt
>    >    the JF's 2.6.31.6 kernel. Same error :-
>    >
>    >    [drm] Initialized drm 1.1.0 20060810
>    >    [drm] radeon default to kernel modesetting.
>    >    [drm] radeon kernel modesetting enabled.
>    >    xen: registering gsi 16 triggering 0 polarity 1
>    >    xen_allocate_pirq: returning irq 16 for gsi 16
>    >    xen: --> irq=16
>    >    xen_set_ioapic_routing: irq 16 gsi 16 vector 152 ioapic 0 pin 16
>    triggering 1
>    >    polarity 1
>    >    radeon 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
>    >    radeon 0000:01:00.0: setting latency timer to 64
>    >    [drm] radeon: Initializing kernel modesetting.
>    >    [drm:radeon_driver_load_kms] *ERROR* Failed to initialize radeon,
>    disabling
>    >    IOCTL
>    >    radeon 0000:01:00.0: PCI INT A disabled
>    >    radeon: probe of 0000:01:00.0 failed with error -22
>    >
> 
>    I guess this is some other problem then.. you might want to enable more
>    debugging options for drm to see what actually goes wrong.
> 
>    Basicly you should extract the initrd image, and change the "modprobe drm"
>    line to say "modprobe drm debug=255" in the init script. And then
>    repack the initrd and use the modified initrd instead.
> 
>    Does it work with "nomodeset" btw?
> 
>    -- Pasi