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Re: [Qemu-devel] Regression on KVM qemu-system-aarch64 since "monitor: e

From: Auger Eric
Subject: Re: [Qemu-devel] Regression on KVM qemu-system-aarch64 since "monitor: enable IO thread for (qmp & !mux) typed"
Date: Fri, 23 Mar 2018 13:01:43 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0


On 23/03/18 11:26, Peter Maydell wrote:
> On 23 March 2018 at 10:24, Auger Eric <address@hidden> wrote:
>> Hi,
>> I observe a regression on KVM accelerated qemu-system-aarch64:
>> Unexpected error in kvm_device_access() at
>> /home/augere/UPSTREAM/qemu/accel/kvm/kvm-all.c:2164:
>> 2018-03-23T09:59:59.629439Z qemu-system-aarch64: KVM_GET_DEVICE_ATTR
>> failed: Group 6 attr 0x000000000000c664: Device or resource busy
>> 2018-03-23 10:00:00.085+0000: shutting down, reason=crashed
> Can you get a backtrace for this? (I guess you'd need to fiddle
> with the kvm_device_access() code to make it assert rather
> than passing back the error).

OK. I will try to do so. As I could have expected, I cannot reproduce on
a standalone qemu command line. The problem observed above is seen with
libvirt launch which may be doing some other QMP stuff concurrently?


> thanks
> -- PMM

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