If it indeed is the triggering commit. Comparing two memory map file for the kernel with and without the commit, could show off its a compilation issue. On Apr 14, 2016 09:21, "Frederik Bosch" <f.bo...@genkgo.nl> wrote:
> For the information, this is the commit > > https://github.com/torvalds/linux/commit/c01fac1c77a00227f706a1654317023e3f4ac7f0 > . > It would indeed make no sense at all when this would cause the thing. > How would the backup procedure even touch those lines of code? > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1470250 > > Title: > [Hyper-V] Ubuntu 14.04.2 LTS Generation 2 SCSI Errors on VSS Based > Backups > > Status in linux package in Ubuntu: > In Progress > Status in linux source package in Trusty: > In Progress > Status in linux source package in Vivid: > In Progress > Status in linux source package in Wily: > In Progress > Status in linux source package in Xenial: > In Progress > > Bug description: > Customers have reported running various versions of Ubuntu 14.04.2 LTS > on Generation 2 Hyper-V Hosts. On a random Basis, the file system > will be mounted Read-Only due to a "disk error" (which really isn't > the case here). As a result, they must reboot the Ubuntu guest to > get the file system to mount RW again. > > The Error seen are the following: > Apr 30 00:02:01 balticnetworkstraining kernel: [640153.968142] storvsc: > Sense Key : Unit Attention [current] > Apr 30 00:02:01 balticnetworkstraining kernel: [640153.968145] storvsc: > Add. Sense: Changed operating definition > Apr 30 00:02:01 balticnetworkstraining kernel: [640153.968161] sd > 0:0:0:0: Warning! Received an indication that the operating parameters on > this target have changed. The Linux SCSI layer does not automatically > adjust these parameters. > Apr 30 01:23:26 balticnetworkstraining kernel: [645039.584164] > hv_storvsc vmbus_0_4: cmd 0x2a scsi status 0x2 srb status 0x82 > Apr 30 01:23:26 balticnetworkstraining kernel: [645039.584178] > hv_storvsc vmbus_0_4: stor pkt ffff88006eb6c700 autosense data valid - len > 18 > Apr 30 01:23:26 balticnetworkstraining kernel: [645039.584180] storvsc: > Sense Key : Unit Attention [current] > Apr 30 01:23:26 balticnetworkstraining kernel: [645039.584183] storvsc: > Add. Sense: Changed operating definition > Apr 30 01:23:26 balticnetworkstraining kernel: [645039.584198] sd > 0:0:0:0: Warning! Received an indication that the operating parameters on > this target have changed. The Linux SCSI layer does not automatically > adjust these parameters. > > This relates to the VSS "Windows Server Backup" process that kicks off > at midnight on the host and finishes an hour and half later. > Yes, we do have hv_vss_daemon and hv_kvp_daemon running for the correct > kernel version we have. We're currently running kernel version > 3.13.0-49-generic #83 on one system and 3.16.0-34-generic #37 on the other. > -- We see the same errors on both. > As a result, we've been hesitant to drop any more ubuntu guests on our > 2012R2 hyper-v system because of this. We can stop the backup process and > all is good, but we need nightly backups to image all of our VM's. All > the windows guests have no issues of course. We also have some CentOS > based guests running without issues from what we've seen. > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1470250/+subscriptions > -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
