Public bug reported: Description: During SRU Testing of various Azure Instances, there will be some cases where the instance will not respond following a system reboot. SRU Testing only restarts a giving instance once, after it preps all of the necessary files to-be-tested.
Series: Disco Instance Size: Basic_A3 Region: (Default) US-WEST-2 Kernel Version: 4.18.0-1013-azure #13-Ubuntu SMP Thu Feb 28 22:54:16 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux I initiated a series of tests which rebooted Azure Cloud instances 50 times. During the 49th Reboot, an Instance failed to return from a reboot.. Upon grabbing the console output the following was seen scrolling endlessly. I have seen this failure in cases where the instance only restarted a handful of times >5 [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus ** Affects: linux-azure (Ubuntu) Importance: Undecided Assignee: Colin Ian King (colin-king) Status: New ** Description changed: Description: During SRU Testing of various Azure Instances, there will be some cases where the instance will not respond following a system reboot. SRU Testing only restarts a giving instance once, after it preps all of the necessary files to-be-tested. + + Series: Disco + Instance Size: Basic_A3 + Region: (Default) US-WEST-2 + Kernel Version: 4.18.0-1013-azure #13-Ubuntu SMP Thu Feb 28 22:54:16 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux I initiated a series of tests which rebooted Azure Cloud instances 50 times. During the 49th Reboot, an Instance failed to return from a reboot.. Upon grabbing the console output the following was seen scrolling endlessly. I have seen this failure in cases where the instance only restarted a handful of times >5 [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus ** Changed in: linux-azure (Ubuntu) Assignee: (unassigned) => Colin Ian King (colin-king) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-azure in Ubuntu. https://bugs.launchpad.net/bugs/1822133 Title: Azure Instance never recovered during series of instance reboots. Status in linux-azure package in Ubuntu: New Bug description: Description: During SRU Testing of various Azure Instances, there will be some cases where the instance will not respond following a system reboot. SRU Testing only restarts a giving instance once, after it preps all of the necessary files to-be-tested. Series: Disco Instance Size: Basic_A3 Region: (Default) US-WEST-2 Kernel Version: 4.18.0-1013-azure #13-Ubuntu SMP Thu Feb 28 22:54:16 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux I initiated a series of tests which rebooted Azure Cloud instances 50 times. During the 49th Reboot, an Instance failed to return from a reboot.. Upon grabbing the console output the following was seen scrolling endlessly. I have seen this failure in cases where the instance only restarted a handful of times >5 [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus [ 84.247704]hyperv_fb: unable to send packet via vmbus To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1822133/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp