Re: Weird qemu-nvmm problem

[Yorick Hardy <yorickhardy%gmail.com@localhost>]

Dear Chavdar,

On 2020-03-08, Chavdar Ivanov wrote:
> Hi,
> 
> On a -current (from today, but has happened before), when running a
> particular nvmm guest (32-bit Windows 10), usually when it is busy
> going through some updates, the host gets into a weird state. I have
> an ssh connection to it with several tmux panes open; I can switch
> between them, so the connection to the host is still ok, but in the
> same time the host does not answer to pings anymore; none of the tmux
> panes themselves accepts any input, with the exception of the one I am
> running the qemu client in; I can interrupt it and after that the host
> comes into normal state. When this happens, I get
> 
> [  7444.602404] coretemp3: workqueue busy: updates stopped
> [  7474.614306] coretemp0: workqueue busy: updates stopped
> [  7474.614306] coretemp1: workqueue busy: updates stopped
> [  7474.614306] coretemp2: workqueue busy: updates stopped
> [ 23591.005414] acpitz4: workqueue busy: updates stopped
> [ 23591.005414] acpibat1: workqueue busy: updates stopped
> 
> The machine is not doing anything else at the moment, the temperatures
> are within the expected range.
> 
> Any clues?
> 
> Chavdar

Unfortunately, "me too". But I did not manage to see the logs or
track down the change which caused this behaviour (sorry).

I had panics for a while (in January?) when using nvmm, and once
that was fixed the "stalling" behaviour started.

-- 
Kind regards,

Yorick Hardy