x86_64 kernel does not start under qemu

Richard Weinberger richard at nod.at
Wed Mar 6 16:33:31 CET 2019


Am Mittwoch, 6. März 2019, 14:43:55 CET schrieb Jan Kiszka:
> On 06.03.19 14:10, Jan Kiszka wrote:
> > On 06.03.19 12:28, Lange Norbert via Xenomai wrote:
> >> Hello,
> >>
> >> I have a similar issue on real hardware (cc Philippe). Can you try booting 
> >> with notscdeadline?
> >>
> > 
> > I would be surprised if it's that: QEMU does not emulate this APIC feature, only 
> > KVM does.
> > 
> > I need to reproduce. Which QEMU version?
> > 
> 
> Just booted current ipipe-x86-4.14.y (4.14.103) in QEMU 3.1+ (some development 
> snapshot) with -smp 4 - works fine. But these are likely quite a few variations 
> from your setup.

I'm on qemu 2.11.2.
Is this plain ipipe? Just figured that you need to prepare the kernel
with Xenomai to trigger the problem.
Xenomai is 3.0.8.

Kernel config is defconfig.

Thanks,
//richard





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