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Created attachment 868778[details]
Script to reproduce relative pathname bug with just qemu-kvm and qemu-img
Script to reproduce relative pathname bug with just qemu-kvm and qemu-img
Attached is a script to reproduce this bug with just qemu-kvm, and qemu-img.
This can be seen via either live snapshots, or image creation with qemu-img.
This script will do the following:
1) create test directory
2) create a qcow2 base image
3) launch qemu-kvm with qmp over localhost tcp
4) attempt to create 80 live snapshots with a relative pathname, to parent directory and then back into the test directory
5) run qemu-img, create a different set of 80 snapshots off the same base image.
6) kill the process started in step #3
All you should need to edit in the script is the executable path for qemu and qemu-img.
The test directory is left after the script runs, with the created snapshots and an output log, for later examination.
Expected outcome:
-355: All snapshot created successfully (live and via qemu-img)
-415: First ~24 snapshots succeed, those after that fail
Any fix should restore it back to -355 parity.
If you edit the script to create 150 snapshots instead of 80, you will see -355 fail as well.
Hi, Jeff
Could you help to point out the difference between this bug and bug 1067576? Is the script in comment 1 is the scenario we need to test and verify for this bug?
Thanks,
Qunfang
(In reply to Qunfang Zhang from comment #3)
> Hi, Jeff
>
> Could you help to point out the difference between this bug and bug 1067576?
> Is the script in comment 1 is the scenario we need to test and verify for
> this bug?
>
>
> Thanks,
> Qunfang
Hi Qunfang,
This bug is for RHEL6.6, while the other bug is a z-stream candidate for RHEL6.5. But RHEL6.6 will need a patch as well.
(In reply to Jeff Cody from comment #4)
> (In reply to Qunfang Zhang from comment #3)
> > Hi, Jeff
> >
> > Could you help to point out the difference between this bug and bug 1067576?
> > Is the script in comment 1 is the scenario we need to test and verify for
> > this bug?
> >
> >
> > Thanks,
> > Qunfang
>
> Hi Qunfang,
>
> This bug is for RHEL6.6, while the other bug is a z-stream candidate for
> RHEL6.5. But RHEL6.6 will need a patch as well.
Hi, Jeff
Thanks for the reply. But I'm still confused. Usually we will have a bug for rhel6.6, and then after it's approved by PM, it will be cloned to a new bug for rhel6.5-z. Currently the sequence is just opposite and both the bugs have "rhel6.6.0?" flags. Could you help check and confirm? Also help fix me if it's wrong.
Thanks!
Qunfang
Created attachment 868778 [details] Script to reproduce relative pathname bug with just qemu-kvm and qemu-img Script to reproduce relative pathname bug with just qemu-kvm and qemu-img Attached is a script to reproduce this bug with just qemu-kvm, and qemu-img. This can be seen via either live snapshots, or image creation with qemu-img. This script will do the following: 1) create test directory 2) create a qcow2 base image 3) launch qemu-kvm with qmp over localhost tcp 4) attempt to create 80 live snapshots with a relative pathname, to parent directory and then back into the test directory 5) run qemu-img, create a different set of 80 snapshots off the same base image. 6) kill the process started in step #3 All you should need to edit in the script is the executable path for qemu and qemu-img. The test directory is left after the script runs, with the created snapshots and an output log, for later examination. Expected outcome: -355: All snapshot created successfully (live and via qemu-img) -415: First ~24 snapshots succeed, those after that fail Any fix should restore it back to -355 parity. If you edit the script to create 150 snapshots instead of 80, you will see -355 fail as well.