Comment 21 for bug 1241251

I am also facing the same problem, dmesg from last boot is just like Pavel's:

[ 0.626201] Write protecting the kernel read-only data: 12288k
[ 0.627546] Freeing unused kernel memory: 1040K (ffff88000e6fc000 - ffff88000e800000)
[ 0.628512] Freeing unused kernel memory: 836K (ffff88000eb2f000 - ffff88000ec00000)
[ 0.634382] systemd-udevd[114]: starting version 204
[ 0.643713] mii: module verification failed: signature and/or required key missing - tainting kernel
[ 0.644296] ahci 0000:00:1f.2: version 3.0
[ 0.644381] ahci 0000:00:1f.2: irq 42 for MSI/MSI-X
[ 0.644778] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[ 0.644783] r8169 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[ 0.644981] r8169 0000:03:00.0: irq 43 for MSI/MSI-X