Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: Kernel panic - not syncing: IO-APIC + timer doesn't work! | Date | Mon, 27 Jul 2020 22:51:16 +0200 |
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Scott,
Scott Branden <scott.branden@broadcom.com> writes:
> Occasionally I get the following Kernel panic on boot. This is > running on the latest kernel but have seen it previously as well. > "Kernel panic - not syncing: IO-APIC + timer doesn't work! Boot with > apic=debug and send a report." > > I don't know who I am support to send a report to. But here is the log with apic=debug
> [ 0.006000] ENABLING IO-APIC IRQs > [ 0.007000] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 > [ 0.007000] ..MP-BIOS bug: 8254 timer not connected to IO-APIC > [ 0.007000] ...trying to set up timer (IRQ0) through the 8259A ... > [ 0.007000] ..... (found apic 0 pin 2) ... > [ 0.007000] ....... failed. > [ 0.007000] ...trying to set up timer as Virtual Wire IRQ... > [ 0.007000] ..... failed. > [ 0.007000] ...trying to set up timer as ExtINT IRQ... > [ 0.007000] ..... failed :(. > [ 0.007000] Kernel panic - not syncing: IO-APIC + timer doesn't work! Boot with apic=debug and send a report. Then try booting with the 'noapic' option.
Nothing which rings a bell. Can you please provide a boot log from a successful boot with apic=debug on the command line?
Also you might check whether there are BIOS updates for this board. The early Ryzen BIOSes had some rough edges.
Thanks,
tglx
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