Re: Need help with qemu args debug

[Anthony PERARD <anthony.perard@citrix.com>]

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On 09/03/12 10:58, Fantu wrote:
>
> Anthony PERARD-3 wrote
>>
>> I tried to reproduce this, but I did not have any issue (with an iso).
>> Also I could not understand why maxmem will have an issue with a drive.
>> Also, spice+qemu on debian does not work well, so I'm not sure if I will
>> have the same issue. When you found the issue related to the "device not
>> found", do you have run the VM without qxl and spice ?
>>
>> I've just send a patch that fix a memory mapping issue (at least for
>> me), could you try with it? :
>> http://lists.xen.org/archives/html/xen-devel/2012-03/msg00627.html
>>
>> Then, do you have the same issue if you use an .iso instead of /dev/sr0
>> as a cdrom ?
>>
>
> Thanks for reply, the problem is present also without spice, qxl and cdrom.
> Tried to apply patch, doesn't work, probably because it is based on qemu
> unstable (xen-unstable use stable-1.0 branch).
> I have applied manually modified lines but to no avail, same problem.

I think there is a better solution for your spice issue. Just specify
videoram=32
in your config file, and remove your maxmem options.
Also apply the patch attached to this mail, that should fix the issue.

Regards,

-- 
Anthony PERARD

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diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
index 922b20b..2fe000e 100644
--- a/tools/libxl/libxl_dm.c
+++ b/tools/libxl/libxl_dm.c
@@ -518,7 +518,7 @@ static char ** libxl__build_device_model_args_new(libxl__gc *gc,
     flexarray_append(dm_args, "-m");
     flexarray_append(dm_args,
                      libxl__sprintf(gc, "%d",
-                                    libxl__sizekb_to_mb(b_info->target_memkb)));
+                                    libxl__sizekb_to_mb(b_info->max_memkb - b_info->video_memkb)));
 
     if (b_info->type == LIBXL_DOMAIN_TYPE_HVM) {
         for (i = 0; i < num_disks; i++) {

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