Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: qemu-x86: kernel panic when host is loaded | Date | Thu, 02 Apr 2020 11:57:52 +0200 |
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Corentin,
Corentin Labbe <clabbe.montjoie@gmail.com> writes: > On our kernelci lab, each qemu worker pass an healtcheck job each day and after each job failure, so it is heavily used. > The healtcheck job is a Linux boot with a stable release. > > Since we upgraded our worker to buster, the qemu x86_64 healthcheck randomly panic with: > <0>[ 0.009000] 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. > > After some test I found the source of this kernel panic, the host is > loaded and qemu run "slower". Simply renicing all qemu removed this > behavour. > > So now what can I do ? > Appart renicing qemu process, does something could be done ?
As the qemu timer/ioapic routing is actually sane, you might try to add "no_timer_check" to the kernel command line.
Thanks,
tglx
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