Re: [Xen-users] xl stack problems on CentOS6 XEN4

[Roger Pau Monnà <roger.pau@xxxxxxxxxx>]

El 12/05/15 a les 16.06, Ian Campbell ha escrit:
> On Tue, 2015-05-12 at 14:00 +0000, Hildebrand, Nils (BIT II 9) wrote:
>> Hi Ian,
>>
>> following the link you provided:
>> http://lists.xen.org/archives/html/xen-devel/2014-02/msg01190.html
>>
>> Looks indeed similar to my output
>> BUT: The following lines are missing on my output:
>>
>>>> libxl: debug: libxl.c:2605:libxl__device_disk_local_initiate_attach:
>>>> trying to locally attach PHY device drbd-remus-test with script
>>>> block-drbd
> 
> Adding Roger.
> 
> I cannot see any message like that in the source code even. Perhaps that
> thread involved some wip patches which haven't landed yet.
>>
>> I can not even see an attempt to call "block-drbd" in my debug-output.
>>
>> Yes, vmname=xlnur079.
>>
>> Making drbd primary does not create a device in /dev/ though - hence
>> my workaround: cd "/dev/drbd/by-res/" before xl create. That's the
>> place where xlnur079 (or at least an symbolic link with that name)
>> resides.
> 
> /dev/drdb/by-res/xlnur079 suffices as "in /dev/" from the PoV of libxl I
> think, it should get a full path back.

It seems like libxl__device_disk_local_initiate_attach is completely
ignoring the fact that disk->script is not NULL, so it has to attach the
disk to Dom0 before running the bootloader (instead of setting dev =
disk->pdev_path). I will try to find some time tomorrow to look into this.

Roger.

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