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Re: Problems starting Xen domU after latest stable update



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

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