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Re: [Qemu-devel] [Help] Windows2012 as Guest 64+cores on KVM Halts

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [Help] Windows2012 as Guest 64+cores on KVM Halts
Date: Fri, 10 Feb 2017 13:01:22 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1

On 10/02/2017 10:31, Gonglei (Arei) wrote:
> But We tested the same cases on Xen platform and VMware, and
> the guest booted successfully.

Were these two also tested with enlightenments enabled?  TCG surely isn't.


> Today I also tested on tcg, the guest also boots successfully.
> BTW, if we disable hyper-v, there isn't problem on boot for the case.
> QEMU command line (enable hyper-v with hv_relaxed):
> # ./qemu-system-x86_64 -name win2012 -machine accel=kvm,usb=off -cpu 
> qemu64,hv_relaxed -m 4001 -realtime mlock=off -smp 
> 68,sockets=1,cores=68,threads=1 \
> -drive file=/mnt/sdb/gonglei/win2012_r2_dc_64_raw,if=none,id=drive-ide0-0-0 
> -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
> -boot menu=on -device piix3-usb-uhci,id=uhci -chardev 
> file,id=seabios,path=/home/seabios.log -device 
> isa-debugcon,iobase=0x402,chardev=seabios \
> -monitor stdio -device cirrus-vga,id=video0,vgamem_mb=16 -vnc
> So, I think it's possible a KVM bug on Hyper-V enlightenments support. 
> Any help will be appreciated!
> CC'ing Paolo, Radim and Vadim.

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