[Bug 1761626] Re: [regression] bionic 4.15.0-13-generic panics on qemu ppc64el

** Tags removed: kernel-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1761626 Title: [regression] bionic 4.15.0-13-generic panics on qemu ppc64el To manage notifications about this bug go to:

[Bug 1761626] Re: [regression] bionic 4.15.0-13-generic panics on qemu ppc64el

I'm not even remotely sure about things here, so some raw notes: * Current bisect effort ("oh man, this will take forever"): # bad: [69973b830859bc6529a7a0468ba0d80ee5117826] Linux 4.9 # good: [c8d2bc9bc39ebea8437fd974fdbc21847bb897a3] Linux 4.8 git bisect start 'v4.9' 'v4.8' # good:

[Bug 1761626] Re: [regression] bionic 4.15.0-13-generic panics on qemu ppc64el

4.8.0 works, 4.9.0 panics. I'll see about bisecting. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1761626 Title: [regression] bionic 4.15.0-13-generic panics on qemu ppc64el To manage

[Bug 1761626] Re: [regression] bionic 4.15.0-13-generic panics on qemu ppc64el

I can test earlier mainlines, but keep in mind that ppc64el is very slow on my home qemu setup (note "only" "very slow"; ppc64 is "amazingly slow", presumably due to endian swapping). Does Kernel have a POWER8 playground machine, if it comes to bisect compiling? -- You received this bug

[Bug 1761626] Re: [regression] bionic 4.15.0-13-generic panics on qemu ppc64el

We should probably also report this upstream, since it still affects current mainline. https://wiki.ubuntu.com/Bugs/Upstream/kernel We can also perform a kernel bisect to identify the commit that introduced this bug. We would first need to identify the last kernel version that did not have the

[Bug 1761626] Re: [regression] bionic 4.15.0-13-generic panics on qemu ppc64el

Same result with 4.16.0-041600-generic and 4.13.0-38-generic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1761626 Title: [regression] bionic 4.15.0-13-generic panics on qemu ppc64el To manage

[Bug 1761626] Re: [regression] bionic 4.15.0-13-generic panics on qemu ppc64el

** Attachment added: "Kernel boot log for 4.15.0-13-generic" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1761626/+attachment/5103357/+files/1761626-4.15.0-13-generic.boot.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to

[Bug 1761626] Re: [regression] bionic 4.15.0-13-generic panics on qemu ppc64el

** Attachment added: "libvirt XML file for instance" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1761626/+attachment/5103368/+files/1761626-libvirt.xml -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.