1523840959 J * Jb_boin ~dedior@proxad.eu
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1523841580 J * any0n ~k@5PUAAAZ8F.tor-irc.dnsbl.oftc.net
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1523862997 J * nikolay ~nikolay@149.235.255.3
1523866802 N * Bertl_zZ Bertl
1523866805 M * Bertl  morning folks!
1523867734 M * Ghislain1 hi bertl
1523867747 M * Bertl hey, how's it going?
1523868485 M * Ghislain1 well not bad, 4.9 is running fine, good weather is back, birds sings.. :)
1523868553 M * Ghislain1 and you, how is this going ?
1523868575 M * Bertl kind of busy currently but otherwise fine
1523868591 M * Bertl haven't had the time to finish patches for the newer kernels
1523868677 M * Ghislain1 yes the 4.14 ones, this one could be cool as it has cgroup sub mounts that perhaps will allow systemd to work inside a guest
1523868678 A * arekm has a machine where 4.4 works fine but 4.9 gets NMI lockup as soon as guests start :/
1523868711 M * Bertl that's interesting ... any additional patches or similar?
1523868748 M * Ghislain1 arekm: did not have issues here but my machines are quite similar to each others
1523868799 M * arekm https://pastebin.com/XP7FZckq
1523868831 M * arekm let me see if any guest is triggering this or specific one
1523868888 M * arekm Bertl: it has few patches
1523868896 M * arekm and have some machines where it runs just fine
1523868921 M * Bertl the call trace confuses me ... it looks like the second CPU has 'just' started
1523868994 M * Bertl can you confirm that all CPUs are running/active before you start a guest?
1523869038 M * Bertl also, is there an overview of the patches you use and/or could you verify that it happens with a vanilla kernel + vserver patch?
1523869172 M * arekm nothing exciting in terms of patches: https://git.pld-linux.org/gitweb.cgi?p=packages/kernel.git;a=tree;h=refs/heads/LINUX_4_9;hb=refs/heads/LINUX_4_9
1523869345 M * arekm all are online # grep "" /sys/devices/system/cpu/cpu*/online
1523869345 M * arekm /sys/devices/system/cpu/cpu1/online:1
1523869345 M * arekm /sys/devices/system/cpu/cpu2/online:1
1523869345 M * arekm /sys/devices/system/cpu/cpu3/online:1
1523869347 M * arekm /sys/devices/system/cpu/cpu4/online:1
1523869350 M * arekm /sys/devices/system/cpu/cpu5/online:1
1523869352 M * arekm /sys/devices/system/cpu/cpu6/online:1
1523869355 M * arekm /sys/devices/system/cpu/cpu7/online:1
1523869360 M * arekm all reporting interrupts
1523869498 M * arekm second guest also triggered it
1523869707 M * Guy- arekm: you actually use ATM? wow
1523869713 M * Guy- only place I ever saw it was in a lab
1523869730 M * Bertl and the stack trace always lists cpu_idle_poll() ?
1523869779 M * Bertl do you happen to have NO_HZ enabled?
1523870181 M * arekm Guy-: no, something loads it I guess
1523870203 M * arekm Bertl: yes, NO_HZ kernel
1523870221 M * arekm just like in 4.4 
1523870224 M * Bertl can you try if that problem goes away if you have a tick?
1523870267 M * Bertl it looks to me like a cpu goes idle (intentional) and powers down then gets 'detected' by the NMI watchdog, woken up and reported
1523870281 M * arekm ok, checking boot with nohz=off
1523870303 M * Bertl you might also want to try to disable speedstep and similar
1523870317 M * Bertl although I don't think this is the case here
1523870445 M * Bertl you might try to force a specific cpu governor though
1523870667 M * arekm nohz=off didn't help
1523870710 M * arekm intel_pstate=disable also didn't
1523870820 M * Bertl okay, would be great if you could build a test kernel only with vanilla + patch-4.9.82-vs2.3.9.7 (with your kernel config) and see if it happens there as well
1523870851 M * Bertl can I download your kernel config somewhere?
1523870949 M * arekm https://pastebin.com/TbBkzFi7
1523870974 M * Bertl tx
1523871143 Q * romster Remote host closed the connection
1523878887 M * Bertl  off for now ... bbl
1523878889 N * Bertl Bertl_oO
1523880621 Q * Aiken Remote host closed the connection
1523896172 Q * nikolay Quit: Leaving
1523901907 Q * FireEgl Remote host closed the connection
1523902942 J * FireEgl Fire_OFTC@2001:470:e56c:1:c816:a698:f8f5:e0b1
1523909877 J * Aiken ~Aiken@2001:44b8:2168:1000:b26e:bfff:fe2a:b951
1523917581 M * Bertl_oO  off to bed now ... have a good one everyone!
1523917584 N * Bertl_oO Bertl_zZ
1523918958 J * romster ~romster@158.140.215.184