Re: trace in arch/x86/kernel/apic/apic.c:1309 setup_local_APIC

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What is the host kernel version and host dmesg information? And does
the problem exist when you use latest kernel and QEMU to replace old
binary file?

On Mon, 2016-01-25 at 14:51 +0100, Stefan Priebe - Profihost AG wrote:
> Hi,
> 
> while running qemu 2.4 on whestmere CPUs i'm pretty often getting
> this
> one while booting:
> [    0.811645] Switched APIC routing to physical x2apic.
> [    1.835678] ------------[ cut here ]------------
> [    1.835704] WARNING: CPU: 0 PID: 1 at
> arch/x86/kernel/apic/apic.c:1309 setup_local_APIC+0x284/0x340()
> [    1.835714] Modules linked in:
> [    1.835724] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.1.15+72-ph
> #1
> [    1.835731] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
> BIOS rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014
> [    1.835743]  ffffffffb69ffcea ffff88042d5e3d68 ffffffffb669c37b
> 0000000000000918
> [    1.835754]  0000000000000000 ffff88042d5e3da8 ffffffffb6080d67
> ffff88042d5e3da8
> [    1.835765]  0000000000000001 0000000000000000 0000000000008000
> 0000000000000000
> [    1.835777] Call Trace:
> [    1.835789]  [<ffffffffb669c37b>] dump_stack+0x45/0x57
> [    1.835799]  [<ffffffffb6080d67>] warn_slowpath_common+0x97/0xe0
> [    1.835806]  [<ffffffffb6080dca>] warn_slowpath_null+0x1a/0x20
> [    1.835813]  [<ffffffffb603eeb4>] setup_local_APIC+0x284/0x340
> [    1.835824]  [<ffffffffb6d7c29d>] apic_bsp_setup+0x5b/0xb0
> [    1.835832]  [<ffffffffb6d79fa7>]
> native_smp_prepare_cpus+0x23b/0x295
> [    1.835842]  [<ffffffffb6d6c1b9>] kernel_init_freeable+0xc7/0x20f
> [    1.835853]  [<ffffffffb668d5c0>] ? rest_init+0x80/0x80
> [    1.835860]  [<ffffffffb668d5ce>] kernel_init+0xe/0xf0
> [    1.835870]  [<ffffffffb66a2fe2>] ret_from_fork+0x42/0x70
> [    1.835877]  [<ffffffffb668d5c0>] ? rest_init+0x80/0x80
> [    1.835891] ---[ end trace bdbe630a8de2832c ]---
> [    1.837613] Spurious LAPIC timer interrupt on cpu 0
> [    1.837957] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
> [    1.939574] smpboot: CPU0: Intel Westmere E56xx/L56xx/X56xx
> (Nehalem-C) (fam: 06, model: 2c, stepping: 01)
> [    1.939630] Performance Events: unsupported p6 CPU model 44 no PMU
> driver, software events only.
> [    1.950868] KVM setup paravirtual spinlock
> 
> Greets,
> Stefan
> --
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