[Xen-devel] 答复: win7 stuck on boot occasionally when apicv enabled

[Sunguodong <sunguodong@xxxxxxxxxx>]

OK, I will test with 'xl destroy && xl create' next.
My current config is:
#######
builder = "hvm"
name = "win7-1"
#viridian = 1   # didn't enable the viridian here
memory = 4096
maxmem = 4096
vcpus = 4
pae=1
acpi=1
apic=1
sdl=0
vif = [ 'mac=00:16:3e:07:37:88,bridge=br0' ]
disk = [ 'file:/home/sda11/sungd/win7_64_2U_vhd-1,xvda,w' ]
vnc = 1
vnclisten = ''
vncdisplay = 0
#######

If I get the result, I'll let you know ASAP.

Thanks!

-----邮件原件-----
发件人: Zhang, Yang Z [mailto:yang.z.zhang@xxxxxxxxx] 
发送时间: 2015年6月11日 16:01
收件人: Sunguodong; xen-devel@xxxxxxxxxxxxx
抄送: jiongxi.li@xxxxxxxxx; Liuqiming (John); Fanhenglong
主题: RE: win7 stuck on boot occasionally when apicv enabled

Sunguodong wrote on 2015-06-03:
> Hi,
> 
> I am getting a vm stuck problem when booting a windows 7 guest on 
> xen-4.6(latest version).
> 
> My hvm guest: Windows 7 64bit (installed pvdriver inside, pvdriver is 
> downloaded from 
> 'http://wiki.univention.de/index.php?title=Installing-signed-GPLPV-dri
> vers')
> 
> My server's CPU model name : Intel(R) Xeon(R) CPU E5-2643 v2 @ 3.50GHz
> 
> 
> 
> This happens rarely, maybe only once in hundreds times of rebooting, 
> and when this appens, it stucks on the Windows Logo screen.
> 
> In order to know where it stopped, I turned on the Boot message and OS 
> Boot Information in OS. It showed something like bellow:
> 
> "
> 
> Micfosoft (R) Windows (R) Version 6.1 (Build 7600)
> 
> 4 System Processors [4088 MB Memory] MultiProcessor Kernel
> 
> Boot Logging Enabled
> 
> "
> 
> then it stucks forever.
> 
> 
> 
> Then I turned off apicv with option 'apicv=0' and did the rebooting 
> test again, the stuck problem didn't show up for at least 9000 times of 
> rebooting.
> 
> So I think it is related with apicv, maybe interrupts loss 
> occasionally when vm is booting when apicv is enabled.
> 
> 
> 
> Has anyone come across this problem before? Or what can I do to solve this?

Can you try to use 'xl destroy && xl create' instead of reboot? I suspect there 
may be some status in VCPU doesn't be reset correctly during reboot.

btw, I guess you didn't enable the viridian in guest config? It's better to 
turn off it to help to narrow down the issue.

> 
> 
> 
> Thank you.
> 
>


Best regards,
Yang


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