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Diffstat (limited to 'results/classifier/108/other/933')
| -rw-r--r-- | results/classifier/108/other/933 | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/results/classifier/108/other/933 b/results/classifier/108/other/933 new file mode 100644 index 000000000..00120646d --- /dev/null +++ b/results/classifier/108/other/933 @@ -0,0 +1,41 @@ +performance: 0.885 +device: 0.852 +other: 0.839 +graphic: 0.814 +PID: 0.776 +files: 0.749 +socket: 0.697 +network: 0.685 +semantic: 0.663 +vnc: 0.640 +permissions: 0.581 +KVM: 0.487 +boot: 0.464 +debug: 0.421 + +Changing CD ROM medium sometimes fails with 'Tray of device is not open' +Description of problem: +QEMU reports that a CD ROM tray is not open when exchanging media: +`unable to execute QEMU command 'blockdev-remove-medium': Tray of device 'ide0-1-0' is not open` + +We see the issue in upstream libvirt integration tests. However, this issue is a race and the reproducibility rate is <15%. +Steps to reproduce: +On the high level this is what we do: +1. eject medium that the machine was started with +2. insert a different medium into the CD ROM + +Translating the above to QEMU QMP commands this is what the test exercises: +1. blockdev-open-tray +2. blockdev-remove-medium +3. blockdev-del +4. blockdev-close-tray +5. blockdev-open-tray +6. blockdev-remove-medium +7. blockdev-add +8. blockdev-insert-medium <<< This is where the test fails +9. blockdev-close-tray +Additional information: +I bisected the code (3 times just to be sure since it's a race) and the following commit fell out of it: +55adb3c45620c31f29978f209e2a44a08d34e2da + +I'm attaching QEMU trace events and a bunch of libvirt test logs (good and bad for comparison). If you think of anything else I should provide in order to help with the issue analysis, please let me know what other option should be turned on.[qemu_traces.tar.gz](/uploads/32e48c92efce3484e552df063795af4d/qemu_traces.tar.gz) |