-----BEGIN PGP SIGNED MESSAGE-----
M. Vefa Bicakci:
> Hello all,
> I noticed that the following commit causes a regression in QubesOS when
> a VM's network interface is detached and re-attached a few times in a row:
> ("xen-netfront: remove warning when unloading module")
> The regression exhibits itself via VM unresponsiveness to qrexec commands
> and heavier than usual CPU utilization involving the xenbus and xenwatch
> kernel threads in the VM whose network interface had been
> This commit has been back-ported to the kernel trees for versions 4.9.80 and
> 4.14.17, which is why QubesOS's testing kernel (based on 4.14.18) is also
Thanks, for tracking this down! And sorry that I missed your report
until now (Otherwise I would already have included it in the latest
> I am currently using QubesOS R3.2, but I believe this issue affects R4.0 as
I'm observing this behavior on R4.0.
Will try if reverting fixes the problem for me.
> Reverting this commit appears to resolve the regression for the time being. I
> haven't had the time to formulate a proper correction.
Did you find out yet why this change is broken?
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----
You received this message because you are subscribed to the Google Groups
To unsubscribe from this group and stop receiving emails from it, send an email
To post to this group, send email to email@example.com.
To view this discussion on the web visit
For more options, visit https://groups.google.com/d/optout.