> 15. März 2018, 18:05 Uhr, "Henrique de Moraes Holschuh": > > On Thu, 15 Mar 2018, Peter Steinmetz wrote: > > should be fixed wrt meltdown. But I see this > > # grep -R . /sys/devices/system/cpu/vulnerabilities/ > > /sys/devices/system/cpu/vulnerabilities/spectre_v2:Mitigation: Full generic > > retpoline > > /sys/devices/system/cpu/vulnerabilities/spectre_v1:Mitigation: __user > > pointer sanitization > > /sys/devices/system/cpu/vulnerabilities/meltdown:Vulnerable > > > > Why / what am I missing? > > Check the kernel boot log using either dmesg or "journalctl -k -b". > Look for "Kernel/User page tables isolation".
Doesn't seem to be there. > Here, that same kernel reports "Mitigation: PTI" in > /sys/devices/system/cpu/vulnerabilities/meltdown > > and: > > # uname -rv ; journalctl -k -b | grep isolation > 4.9.0-6-amd64 #1 SMP Debian 4.9.82-1+deb9u3 (2018-03-02) > [redacted] kernel: Kernel/User page tables isolation: enabled # journalctl -k -b | grep isolation; echo $? 1 # This kernel is running as a Dom0-kernel on Xen. Might that be the reason? Peter
