On 1/28/21 6:52 PM, Michael D Labriola wrote:
> Hey, everyone. I've run into problems starting up my Xen domUs as of
> the latest batch of stable updates. Whenever I try to create one, I
> get a bunch of block device errors like this:
>
> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51712
> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51728
> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51744
> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51760
> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51776
> libxl: error: libxl_create.c:1452:domcreate_launch_dm: Domain 4:unable to add disk devices
> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51712
> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51728
> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51744
> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51760
> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51776
> libxl: error: libxl_domain.c:1290:devices_destroy_cb: Domain 4:libxl__devices_destroy failed
> libxl: error: libxl_domain.c:1177:libxl__destroy_domid: Domain 4:Non-existant domain
> libxl: error: libxl_domain.c:1131:domain_destroy_callback: Domain 4:Unable to destroy guest
> libxl: error: libxl_domain.c:1058:domain_destroy_cb: Domain 4:Destruction of domain failed
>
> I'm using Xen 4.13.1 on the box I've been testing with.
>
> I bisected down to this commit, and reverting it does indeed fix my
> problem. Well, this commit upstream and it's cherry-picked variants
> on linux-5.4.y and linux-5.10.y.
You most likely need 5f46400f7a6a4fad635d5a79e2aa5a04a30ffea1. It hit Linus tree a few hours ago.
-boris
On Thu, Jan 28, 2021 at 07:03:00PM -0500, Boris Ostrovsky wrote:
>
> On 1/28/21 6:52 PM, Michael D Labriola wrote:
> > Hey, everyone. I've run into problems starting up my Xen domUs as of
> > the latest batch of stable updates. Whenever I try to create one, I
> > get a bunch of block device errors like this:
> >
> > libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51712
> > libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51728
> > libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51744
> > libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51760
> > libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51776
> > libxl: error: libxl_create.c:1452:domcreate_launch_dm: Domain 4:unable to add disk devices
> > libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51712
> > libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51728
> > libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51744
> > libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51760
> > libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51776
> > libxl: error: libxl_domain.c:1290:devices_destroy_cb: Domain 4:libxl__devices_destroy failed
> > libxl: error: libxl_domain.c:1177:libxl__destroy_domid: Domain 4:Non-existant domain
> > libxl: error: libxl_domain.c:1131:domain_destroy_callback: Domain 4:Unable to destroy guest
> > libxl: error: libxl_domain.c:1058:domain_destroy_cb: Domain 4:Destruction of domain failed
> >
> > I'm using Xen 4.13.1 on the box I've been testing with.
> >
> > I bisected down to this commit, and reverting it does indeed fix my
> > problem. Well, this commit upstream and it's cherry-picked variants
> > on linux-5.4.y and linux-5.10.y.
>
>
> You most likely need 5f46400f7a6a4fad635d5a79e2aa5a04a30ffea1. It hit Linus tree a few hours ago.
I can confirm this fixes the same issue for me (too?), thanks!
Shouldn't this patch have Cc: stable?
--
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
On 29.01.21 01:51, Marek Marczykowski-Górecki wrote:
> On Thu, Jan 28, 2021 at 07:03:00PM -0500, Boris Ostrovsky wrote:
>>
>> On 1/28/21 6:52 PM, Michael D Labriola wrote:
>>> Hey, everyone. I've run into problems starting up my Xen domUs as of
>>> the latest batch of stable updates. Whenever I try to create one, I
>>> get a bunch of block device errors like this:
>>>
>>> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51712
>>> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51728
>>> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51744
>>> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51760
>>> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to add device with path /local/domain/0/backend/vbd/4/51776
>>> libxl: error: libxl_create.c:1452:domcreate_launch_dm: Domain 4:unable to add disk devices
>>> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51712
>>> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51728
>>> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51744
>>> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51760
>>> libxl: error: libxl_device.c:1105:device_backend_callback: Domain 4:unable to remove device with path /local/domain/0/backend/vbd/4/51776
>>> libxl: error: libxl_domain.c:1290:devices_destroy_cb: Domain 4:libxl__devices_destroy failed
>>> libxl: error: libxl_domain.c:1177:libxl__destroy_domid: Domain 4:Non-existant domain
>>> libxl: error: libxl_domain.c:1131:domain_destroy_callback: Domain 4:Unable to destroy guest
>>> libxl: error: libxl_domain.c:1058:domain_destroy_cb: Domain 4:Destruction of domain failed
>>>
>>> I'm using Xen 4.13.1 on the box I've been testing with.
>>>
>>> I bisected down to this commit, and reverting it does indeed fix my
>>> problem. Well, this commit upstream and it's cherry-picked variants
>>> on linux-5.4.y and linux-5.10.y.
>>
>>
>> You most likely need 5f46400f7a6a4fad635d5a79e2aa5a04a30ffea1. It hit Linus tree a few hours ago.
>
> I can confirm this fixes the same issue for me (too?), thanks!
> Shouldn't this patch have Cc: stable?
No, I don't think so.
The issue being fixed by the patch has been introduced only in 5.11
and the fixing patch references the buggy patch via a Fixes: tag.
If the buggy patch has been put into stable this Fixes: tag should
result in the fix being put into the same stable branches as well.
Juergen