1. Please describe the problem: Running Kerneltest-5.1.iso for Kernel 5.1 test day. Running under VirtualBox Version 6.0.6 r130049 (Qt5.6.1) VM Settings: 2 CPU, 4GB RAM, 128MB VSGA sudo ./runtests.sh Test suite called with default ./default/paxtest PASS ./default/cachedrop PASS ./default/mq-memory-corruption PASS ./default/libhugetlbfs SKIP ./default/timer-overhead FAIL ./default/memfd PASS ./default/sysfs-perms PASS ./default/selinux-dac-controls PASS ./default/posix_timers PASS details from the kernel-tests/logs/kernel-test-1557764647.log.txt emfd: SHARE-FORK memfd: SHARE-DUP (shared file-table) memfd: SHARE-MMAP (shared file-table) memfd: SHARE-OPEN (shared file-table) memfd: SHARE-FORK (shared file-table) memfd: DONE Starting test ./default/sysfs-perms Starting test ./default/selinux-dac-controls Starting test ./default/posix_timers Testing posix timers. False negative may happen on CPU execution based timers if other threads run on the CPU... Check itimer virtual... Diff too high: 2665487..[FAIL] 2. What is the Version-Release number of the kernel: Linux localhost 5.1.1-300.fc30.x86_64 #1 SMP Sat May 11 17:15:05 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux 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 : 4. Can you reproduce this issue? If so, please provide the steps to reproduce the issue below: 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``: 6. Are you running any modules that not shipped with directly Fedora's kernel?: 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.