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[Qemu-devel] QEMU terminates during reboot after memory unplug with vhos
Bharata B Rao
[Qemu-devel] QEMU terminates during reboot after memory unplug with vhost=on
Thu, 14 Sep 2017 12:31:18 +0530
QEMU hits the below assert
qemu-system-ppc64: used ring relocated for ring 2
qemu-system-ppc64: qemu/hw/virtio/vhost.c:649: vhost_commit: Assertion `r >= 0'
in the following scenario:
1. Boot guest with vhost=on
2. Hot add a DIMM device
When the guest reboots, we can see
vhost_virtqueue_start:vq->used_phys getting assigned an address that
falls in the hotplugged memory range.
4. Remove the DIMM device
Guest refuses the removal as the hotplugged memory is under use.
QEMU forces the removal of the DIMM device during reset and that's
when we hit the above assert.
Any pointers on why we are hitting this assert ? Shouldn't vhost be
done with using the hotplugged memory when we hit reset ?
- [Qemu-devel] QEMU terminates during reboot after memory unplug with vhost=on,
Bharata B Rao <=