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Diffstat (limited to 'gitlab/issues_text/target_i386/host_missing/accel_missing/2594')
| -rw-r--r-- | gitlab/issues_text/target_i386/host_missing/accel_missing/2594 | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/gitlab/issues_text/target_i386/host_missing/accel_missing/2594 b/gitlab/issues_text/target_i386/host_missing/accel_missing/2594 deleted file mode 100644 index 5907a2518..000000000 --- a/gitlab/issues_text/target_i386/host_missing/accel_missing/2594 +++ /dev/null @@ -1,35 +0,0 @@ -Migration fails with 'get_pci_config_device: Bad config data: i=0x9a read: 2 device: 3 cmask: ff wmask: 0 w1cmask:0' after hotplugging a CPU -Description of problem: -After hotplugging a CPU and finishing a migration from node 1 to node 2, the instance on node 2 crashes when virtio block devices are used: -``` -qemu-system-x86_64: get_pci_config_device: Bad config data: i=0x9a read: 2 device: 3 cmask: ff wmask: 0 w1cmask:0 -qemu-system-x86_64: Failed to load PCIDevice:config -qemu-system-x86_64: Failed to load virtio-blk:virtio -qemu-system-x86_64: error while loading state for instance 0x0 of device '0000:00:04.0/virtio-blk' -qemu-system-x86_64: load of migration failed: Invalid argument -``` - -I found the problem also exhibits when using `scsi-hd` in combination with `virtio-scsi`, but not when using IDE hard disks or SCSI disks with an LSI controller. VMs with network cards aren't affected either, as are VMs without virtio disks. - - -Interestingly, the latest QEMU version shipped with Ubuntu 20.04 (4.2.1-Debian 1:4.2-3ubuntu6.29) is able to migrate this VM just fine. -Steps to reproduce: -1. Start a VM using the first command line -2. Start another VM using the second command line -3. Hotplug a CPU in QMP: - ``` - {"execute":"device_add","arguments":{"node-id":0,"socket-id":0,"core-id":2,"thread-id":0,"id":{},"driver":"qemu64-x86_64-cpu"}} - ``` -4. Start a migration by executing the following QMP command (again substituting `<ip:port>` with the IP:port combination of node 2 - ``` - {"execute":"migrate","arguments":{"uri":"tcp:127.0.0.1:1234"}} - ``` - -(For steps 3 and 4 I used this): -``` -echo '{"execute":"qmp_capabilities"} -{"execute":"device_add","arguments":{"node-id":0,"socket-id":0,"core-id":2,"thread-id":0,"id":{},"driver":"qemu64-x86_64-cpu"},"id":1} -{"execute":"migrate","arguments":{"uri":"tcp:127.0.0.1:1234"},"id":2}' | nc -U /tmp/vm1.sock -``` -Additional information: - |