[Bug 1643533] Re: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely)
[Expired for linux (Ubuntu) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1643533 Title: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1643533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1643533] Re: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely)
[Expired for linux (Ubuntu Xenial) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu Xenial) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1643533 Title: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1643533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1643533] Re: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely)
** Changed in: linux (Ubuntu Xenial) Status: Confirmed => Incomplete ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1643533 Title: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1643533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1643533] Re: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely)
We can perform a "Reverse" kernel bisect to identify the commit that fixes this in v4.9-rc7. We first need to identify the last bad kernel and first good one. Can you test the v4.9-rc1 kernel to try and narrow the affect versions down further. It can be downloaded from: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc1/ If v4.9-rc1 is also good, we would want to test 4.8 final. If it is bad, we would want to test some of the newere 4.9 release candidates. Thanks in advance! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1643533 Title: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1643533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1643533] Re: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely)
I got the impression from my virtual server hoster (which runs the hypervisor) that other customers don't have this issue. I was also inquiried about my use of BTRFS as a filesystem, and I also use Docker very heavily which makes heavy use of special BTRFS, DeviceMapper and Cgroup features, which might be something not every other customer does. I am just adding this information in case it is helpful for tracking down the cause of this crash. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1643533 Title: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1643533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1643533] Re: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely)
I am now very confident that this bug is NOT present in 4.9-rc7, therefore marking kernel-fixed-upstream. ** Tags added: kernel-fixed-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Changed in: linux (Ubuntu Xenial) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1643533 Title: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1643533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1643533] Re: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely)
It appears as if the issue is NOT present in mainline 4.9-rc7. I will wait a few more days to be sure before marking this 'kernel-fixed- upstream', since the bug always appeared in a varying interval of 2-5 days, just to get a higher level of confidence. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1643533 Title: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1643533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1643533] Re: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely)
For what it's worth, I am now running 4.9.0-040900rc7-generic since a few minutes ago. The bug always hit me after 2-5 days but always under a week, so I can tell you in at the earliest a week that the bug is or is not in upstream with high certainty. (so around 9th of December) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1643533 Title: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1643533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1643533] Re: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely)
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.9 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc6 ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Xenial) Status: New => Incomplete ** Changed in: linux (Ubuntu Xenial) Importance: Undecided => High ** Tags added: kernel-da-key ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1643533 Title: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1643533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1643533] Re: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely)
The kernel panic itself locks up the system instantly and therefore no logging to disk happens of that error. Therefore, see the attached screenshot of the qemu screen after the crash. ** Attachment added: "Screenshot of VM in Qemu after crashing" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1643533/+attachment/4780974/+files/qemu-crash.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1643533 Title: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1643533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
