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Re: [Qemu-block] strange crash in tracked_request_begin

From: Christian Borntraeger
Subject: Re: [Qemu-block] strange crash in tracked_request_begin
Date: Mon, 7 Mar 2016 14:40:05 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0

On 03/07/2016 02:35 PM, Paolo Bonzini wrote:
> On 07/03/2016 13:29, Christian Borntraeger wrote:
>> Folks,
>> I had a crash of a qemu guest in tracked_request_begin.
>> The testcase was a guest with ramdisk/kernel that reboots in a 
>> loop. (about 10 times per second) with a single null-co disk 
>> attached.
> Does it use a separate iothread?


libvirt kludge (why is there no null-co/null-aio in libvirt?) looks like

    <qemu:arg value='-drive'/>
    <qemu:arg value='driver=null-co,id=null8,if=none,size=100G'/>
    <qemu:arg value='-device'/>

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