Created attachment 987465 [details] Screenshot of kernel panic Description of problem: Booting as Xen Dom0 results in kernel panic when using kernel-3.18.3-201.fc21.x86_64. The system boots properly a) without Xen b) with Xen, but kernel--3.17.8-200.fc20.x86_64 Version-Release number of selected component (if applicable): kernel-3.18.3-201.fc21.x86_64 xen-4.4.1-12.fc21.x86_64 How reproducible: always Steps to Reproduce: 1.Boot 2. 3. Actual results: kernel panic Expected results: booting Additional info: cat /proc/cmdline: root=/dev/mapper/raid01-system ro quiet rhgb loop.max_part=63 SYSFONT=latarcyrheb-sun16 LANG=de_DE.UTF-8 KEYTABLE=us-de pcie_aspm=off rdblacklist=nvidia nouveau.modeset=1 selinux=0 intel_iommu=1 xl info | grep commandline: xen_commandline : dom0_mem=9504M dom0_max_vcpus=7 iommu=verbose vga=gfx-1600x1200x32 loglvl=info guest_loglvl=err
Just tested rawhide kernel-core-3.19.0-0.rc7.git0.1.fc22.x86_64 The kernel panic disappeared! Booted without problems.
Pls backport https://lkml.org/lkml/2015/1/27/894
(In reply to Konrad Rzeszutek Wilk from comment #2) > Pls backport https://lkml.org/lkml/2015/1/27/894 That was added to 3.18.5 upstream, which means Fedora should already have that commit. Helmut, if you could test the submitted 3.18.5 build and confirm, that would be appreciated. Thanks for the pointer, Konrad!
I can boot kernel-3.18.5-201.fc21.x86_64 as a xen dom0 (xen is actually xen-4.5.0-1.fc22.x86_64 built for F21 in my case).
kernel-3.18.5-201.fc21.x86_64 boots fine for me with the standard Fedora 21 Xen. Is this fixed?
Yes, indeed. kernel-3.18.5-201.fc21.x86_64 boots as xen dom0.
Thanks.