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Re: [Qemu-devel] trace in arch/x86/kernel/apic/apic.c:1309 setup_local_A
From: |
Stefan Priebe - Profihost AG |
Subject: |
Re: [Qemu-devel] trace in arch/x86/kernel/apic/apic.c:1309 setup_local_APIC |
Date: |
Tue, 26 Jan 2016 11:43:14 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 |
Am 26.01.2016 um 11:13 schrieb Yang Zhang:
> On 2016/1/26 15:22, Stefan Priebe - Profihost AG wrote:
>> Hi,
>>
>> Am 26.01.2016 um 02:46 schrieb Han, Huaitong:
>>> 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?
>>
>> Guest and Host is both 4.1.15. You mean the complete dmesg output from
>> host?
>>
>> What do you mean with replace old binary file? I haven't tested Kernel
>> 4.4 as we use 4.1 as it is a long term stable kernel release.
>
> Have you seen this before? I mean use the old KVM like 3.10?
Guest or host? To test with a guest would be quite easy. Downgrading the
host is very difficult not sure if the hw is supported.
>
>>
>> Stefan
>>
>>> 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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>>
>
>