RE: [Xen-devel] xfrd inifinite loop reloading pages

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> I'm seeing an infinite loop in xfrd on the destination 
> physical machine,
> when migrating a domain.  It passes 100% while reloading memory pages,
> and keeps going.  I've seen this on an older build (an early 
> 2.0.x IIRC)
> but have never yet had time to dig into it.  Anyone else seen this?

Are you using the '-l' live option to migrate? If you are, going past
100% isn't actually a bug (though looping forever obviously is).

What are you seeing in the sending xfrd log? Have you used the ballon
driver or mem= command line options to the domain?

Also, what's running in the domain you are trying to migrate?

Best,
Ian


 
> Here's /var/log/xfrd.log:
> 
> 
> 9657 [INF] XFRD> Accepted connection from 151.155.190.17:32859 on 2
> 10346 [INF] XFRD> Xfr service for 151.155.190.17:32859
> [DEBUG] Conn_init> flags=1
> [DEBUG] Conn_init> write stream...
> [DEBUG] stream_init>mode=w flags=1 compress=0
> [DEBUG] stream_init> unbuffer...
> [DEBUG] stream_init< err=0
> [DEBUG] Conn_init> read stream...
> [DEBUG] stream_init>mode=r flags=1 compress=0
> [DEBUG] stream_init> unbuffer...
> [DEBUG] stream_init< err=0
> [DEBUG] Conn_sxpr>
> (xfr.hello 1 0)[DEBUG] Conn_sxpr< err=0
> [DEBUG] Conn_sxpr>
> (xfr.xfr 8)[DEBUG] Conn_sxpr< err=0
> [1111078930.273966] xc_linux_restore start
>  
> xc_linux_restore start
> [1111078930.287904] Created domain 1
>  
> Created domain 1
> (Domain-1 Domain-0)'domain id=1 name=SuSE.33 memory=256 console=9601
> image=/shared/boot/vmlinuz-2.6.10-xenU'[1111078930.389380] Reloading
> memory pages:   0%
> Reloading memory pages:   0  6%
> ^H^H^H^H  6 12%
> ^H^H^H^H 12 17%
> ^H^H^H^H 17 23%
> ^H^H^H^H 23 28%
> ^H^H^H^H 28 34%
> ^H^H^H^H 34 39%
> ^H^H^H^H 39 45%
> ^H^H^H^H 45 50%
> ^H^H^H^H 50 56%
> ^H^H^H^H 56 62%
> ^H^H^H^H 62 67%
> ^H^H^H^H 67 73%
> ^H^H^H^H 73 78%
> ^H^H^H^H 78 84%
> ^H^H^H^H 84 89%
> ^H^H^H^H 89 95%
> ^H^H^H^H 95100%
> ^H^H^H^H100105%
> ^H^H^H^H105110%
> ^H^H^H^H110115%
> ^H^H^H^H115120%
> ^H^H^H^H120125%
> ^H^H^H^H125130%
> ^H^H^H^H130135%
> ^H^H^H^H135140%
> ^H^H^H^H140145%
> ^H^H^H^H145150%
> ^H^H^H^H150155%
> 
> [chomp]
> 
> 
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