Description of problem: XEN will not boot using recent IPFire Core 2.21 Updaet 126 (kernels 4.14.86) as DomU. Error Message in dmesg: [...] RIP: e030:ptdump_walk_pgd_level_core+ [...] It seems to be the same issue as described in xen project: https://lists.xenproject.org/archives/html/xen-devel/2018-11/msg03410.html and Fedora 29 (kernel 4.19.5 and up): https://bugzilla.redhat.com/show_bug.cgi?id=1657539 In this case, there is a patch available that has not made into stable kernel yet: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=16877a5570e0c5f4270d5b17f9bab427bcae9514 How reproducible: Every boot. I have locked my boot to kernel 4.14.72 Steps to Reproduce: 1. Just reboot system Actual results: System will reboot continuously because of the failure. Expected results: Boot into kernel with XEN Additional info:
Thanks for reporting. I classified this ticket correctly.
I don't think that this patch will help. It stated that is for a dom0 crash not for domu and it change only the memory hole for 64bit. The IPFire pae kernel for xen is 32bit. Are you running PV or HVM ?
Hi Arne Thank you for the reply. If I remember correctly, the patch does also help in pv DomU situation. https://www.spinics.net/linux/fedora/fedora-users/msg487892.html > It stated that is for a dom0 crash not for domu and it change only the memory > hole for 64bit. The IPFire pae kernel for xen is 32bit. > Are you running PV or HVM ? Well, I am running IPFire PV with x86_64 kernel. "release": "IPFire 2.21 (x86_64) - core126", My Profile ID is 4b49f187a53fdd567b058002b72c83524b1b4479
Kernel 4.14.93 has now officially included 'x86/mm: Fix guard hole handling' commit. Please include this kernel version (or later) in next IPFire update 127 quickly. Hopefully, this solves the boot issue. Thank you