FYI, When I did the analysis of this last year I found a couple of additional key data points that may help with reproducing the error. I reported them at the time but they're well buried by now.
1) Timing of the bug appears to be load related. I found that generating the error could take minutes, hours, days or even weeks, depending on load. To generate the error faster, try putting significant I/O and CPU load on the Hyper-V server, especially I/O. I don't have my notes in front of me but I recall that I/O load had the highest influence. 2) RHEL / CentOS is not immune, it just manifests differently. On RHEL/CentOS, at the same time as Ubuntu generates the file system error, RHEL/CentOS will have a large (400ms - ~5000ms) latency in I/O. On RHEL/CentOS it's just that no file system error occurs. Hope that helps. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1470250 Title: [Hyper-V] Ubuntu 14.04.2 LTS Generation 2 SCSI Errors on VSS Based Backups To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1470250/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
