[ 14.723286][ T249] ip (249) used greatest stack depth: 24392 bytes left [ 21.336819][ T327] gre: GRE over IPv4 demultiplexer driver [ 21.355440][ T327] ip_gre: GRE over IPv4 tunneling driver [ 23.758566][ T350] 8021q: 802.1Q VLAN Support v1.8 [ 27.611812][ T388] GACT probability NOT on [ 891.142909][ T8525] ping6 (8525) used greatest stack depth: 23936 bytes left [ 1501.947714][ C2] clocksource: timekeeping watchdog on CPU2: Marking clocksource 'tsc' as unstable because the skew is too large: [ 1501.949826][ C2] clocksource: 'kvm-clock' wd_nsec: 484721431 wd_now: 15ddebd5474 wd_last: 15dc1d9115d mask: ffffffffffffffff [ 1501.951400][ C2] clocksource: 'tsc' cs_nsec: 485248573 cs_now: 4198942989e cs_last: 419327db1a0 mask: ffffffffffffffff [ 1501.953022][ C2] clocksource: Clocksource 'tsc' skewed 527142 ns (0 ms) over watchdog 'kvm-clock' interval of 484721431 ns (484 ms) [ 1501.954718][ C2] clocksource: 'kvm-clock' (not 'tsc') is current clocksource. [ 1501.955843][ C2] tsc: Marking TSC unstable due to clocksource watchdog