Bug#918036: [PATCH v15 23/26] sched: early boot clock (was Re: Bug#918036: linux: uptime after reboot wrong (kvm-clock related?))

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Thorsten Glaser

Jan 4, 2019, 2:50:06 AM1/4/19
Hi Salvatore,

>p.s.: my earlier reply to you seem to have been rejected and never
> reached you, hope this one does now.

if you sent from Googlemail, it may reach me in the next weeks or
never *shrug* they don’t play nice with greylisting. The -submitter
or @d.o works, though. I’m following up from my $dayjob address as
the issue occurred there (which is also Googlemail, unfortunately).

>There was now a followup on this, and if you can I think it's best if
>you can followup there.

OK, doing now:

Pavel Tatashin wrote:

>Could you please send the config file and qemu arguments that were
>used to reproduce this problem.

This is from a libvirt-managed system. The arguments as shown by
“ps axwww” are:

qemu-system-x86_64 -enable-kvm -name ci-busyapps -S -machine pc-1.1,accel=kvm,usb=off -m 8192 -realtime mlock=off -smp 2,sockets=2,cores=1,threads=1 -uuid 09536d92-dd73-8993-78fb-e0c885acf763 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/ci-busyapps.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/dev/vms/ci-busyapps,format=raw,if=none,id=drive-virtio-disk0,cache=none,aio=native -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=24,id=hostnet0,vhost=on,vhostfd=25 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:05:6e:fd,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0 -vnc -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 -msg timestamp=on

I’ve attached the kernel configuration; this is a stock Debian
unstable/amd64 system, just upgraded. After upgrading the guest,
I merely issued a “reboot” in the guest and did not stop/start

The host is Debian jessie/amd64 (Linux 3.16.0-7-amd64 / 3.16.59-1)
in case that matters.

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