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MP-BIOS bug: 8254 timer not connected to IO-APIC please suggest something to make it work.

asked 2017-04-19 00:22:01 -0600

sumitdgoyal gravatar image

i am using Openstack-mitaka to launch an automated VM with some application but my VM console is not getting boot. i am using libvirt-qemu hypervisior with NOVA service and neutron networking services. When my instance is getting boot that time i am getting these error please somebody help me out. *tsc: FAST TSC calibration failed MP-BIOS bug: 8254 timer not connected to IO-APIC*

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I don't think it's really an error, but googling for Fast TSC calibration yields many results. One suggestion I saw was adding clocksource=acpi_pm to the Linux command line in the grub config. Or perhaps noapic in the Linux command line.

Bernd Bausch gravatar imageBernd Bausch ( 2017-04-19 01:20:26 -0600 )edit
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answered 2018-06-07 11:34:14 -0600

akostadinov gravatar image

Kernel command line option no_timer_check helped me with this (Red Hat Enterprise Linux 7.5 guest). But this I suspect the OpenStack install was not solid. Need it only in one cluster. See

  • https://www.spinics.net/linux/fedora/fedora-cloud/msg03961.html (https://www.spinics.net/linux/fedora/...)
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answered 2017-04-19 05:06:28 -0600

sumitdgoyal gravatar image

Thnx Bernd Bausch, But Even i fed up googling with these errors bcoz this clocksource i have done but still m getting the same error could you plz suggest anything else.... so i can proceed to next level.

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Sorry I am not smarter than Google in this case. I would try to move the application to another operating system or try to run it with different hypervisor versions.

Bernd Bausch gravatar imageBernd Bausch ( 2017-04-19 05:11:51 -0600 )edit
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Asked: 2017-04-19 00:22:01 -0600

Seen: 615 times

Last updated: Jun 07 '18

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