https://bugzilla.kernel.org/show_bug.cgi?id=203543 Bug ID: 203543 Summary: Starting with kernel 5.1.0-rc6, kvm_intel can no longer be loaded in nested kvm/guests Product: Virtualization Version: unspecified Kernel Version: 5.1.0-rc6 Hardware: Intel OS: Linux Tree: Mainline Status: NEW Severity: blocking Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: hilld@xxxxxxxxxxxxxxx Regression: No 1. Please describe the problem: Starting with kernel 5.1.0-rc6, kvm_intel can no longer be loaded in nested kvm/guests [root@undercloud-0-rhosp10 ~]# modprobe kvm_intel modprobe: ERROR: could not insert 'kvm_intel': Input/output error 2. What is the Version-Release number of the kernel: 5.1.0-rc7 3. Did it work previously in Fedora? If so, what kernel version did the issue *first* appear? Old kernels are available for download at https://koji.fedoraproject.org/koji/packageinfo?packageID=8 : Yes it seems to have appearded between 5.1.0-rc4 (it worked) and 5.1.0-rc6 (it no longer worked) 4. Can you reproduce this issue? If so, please provide the steps to reproduce the issue below: Yes, update to 5.1.0-rc6 and try to modprobe kvm_intel inside a guest where the VMX capabilities has been exposted 5. Does this problem occur with the latest Rawhide kernel? To install the Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by ``sudo dnf update --enablerepo=rawhide kernel``: Yes 6. Are you running any modules that not shipped with directly Fedora's kernel?: No 7. Please attach the kernel logs. You can get the complete kernel log for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the issue occurred on a previous boot, use the journalctl ``-b`` flag. -- You are receiving this mail because: You are watching the assignee of the bug.
