Hello,
Guys, does anyone have VM running in AliCloud Chinese provider (one of
the biggest, if not the biggest one) ? They seem to provide stock
FreeBSD 11.x images on some Redhat-based Linux with VirtIO which run
just fine (at least I take a look at their kernel and it seem to be a
stock GENERIC), but after source uprgading to 12.2 it cannot mountroot,
because literally no disks are found after thee kernel booting stage.
This, in turn, is cause by a bunch of repeatable virtio errors, which
looks like (screenshot provided in the link):
virtio_pci1: cannot map I/O space
device_attach: virtio_pci1 attach returned 6
(https://enazadev.ru/stub-data/freebsd12-alicloud-cannot-map-io.png)
So not only vtbd0 cannot be attached to, but also a network adater.
Surprisingly, virtio_console and memory baloon device seems to be working.
I've took a look at various VirtIO cases in the bug tracker and compiled
a kernel without netmap (yeah, after some consideration this could help
only with virtio_net part), but this doesn't help.
Is this some sort of regression that needs to be reported ? Is there
some kind of known workaround ?
I also have a running 11.3 on a second VM, so I can provide any
necessary details if needed.
Thanks.
Eugene.
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