[vfio-users] RmInitAdapter failed for nvidia in ubuntu guest

[Kai Damm]

I found the answer to the "login prompt in virt-manager window"
question: The preconfigured console was a serial console, which is of no
use for me. I had to add a virtio console.




Am 02.07.2016 um 10:53 schrieb Cepheus:
> Am 30.06.2016 um 18:39 schrieb Alex Williamson:
>> I don't see that you're doing anything about hiding KVM.
>>
>> <features>
>>   ...
>>   <kvm>
>>     <hidden state='on'/>
>>   </kvm>
>>   ...
>> </features>
> 
> 
> Thank you. Unfortunately, the driver still fails to initialize. The vm
> "test9" did not start again after I changed kernel params "vmalloc=512M"
> and later reverted the change.
> A new vm "test10" with the above kvm "hidden" state behaves nearly
> identical. There is not "not supported by ..." message in Xorg.0.log.
> But the following:
> 
> [    11.106] (EE) NVIDIA(GPU-0): Failed to initialize the NVIDIA GPU at
> PCI:0:5:0.  Please
> [    11.106] (EE) NVIDIA(GPU-0):     check your system's kernel log for
> additional error
> [    11.106] (EE) NVIDIA(GPU-0):     messages and refer to Chapter 8:
> Common Problems in the
> [    11.106] (EE) NVIDIA(GPU-0):     README for additional information.
> [    11.106] (EE) NVIDIA(GPU-0): Failed to initialize the NVIDIA
> graphics device!
> [    11.106] (EE) NVIDIA(0): Failing initialization of X screen 0
> 
> 
> The dmesg messages look similar. The numbers are different:
> 
> [    4.376541] NVRM: RmInitAdapter failed! (0x2c:0x59:1159)
> [    4.376913] NVRM: rm_init_adapter failed for device bearing minor
> number 0
> 
> Additional questions: With "test9", I did have a login prompt in the
> machine's virt-manager window on the host desktop. This was due to the
> console device. With "test10", I also did leave the console device in
> there, but I only get some text junk instead of a login prompt. This is
> no showstopper - I enabled ssh in the guest - but I would like to know
> what the reason for the difference is. Guest is Ubuntu 16.04 in both cases.
> 
> If the guest does not come up - no ping reply, no ssh - what is the best
> way to know what's happening? I do not want the guest to have SPICE
> graphics to not confuse the guest which display to use - output shall be
> the passed through nvidia card.
> 
> Thanks
> Kai
> 
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