Xen devel - May 2005 - RE: copying large files over NFS locks up machine on-testing from Thursday

> It turns out it isn''t bridging - the NFS lockup only happens 
> if xend is running. If I start then stop xend and do a NFS 
> transfer I don''t hit any problems. Any idea what xend could 
> be doing that would be making the system so unhappy?
It''s really unlikely to be xend that''s causing this. Are you
sure its
not just xend running the network script to start the bridge?

2.0 vintage xend is the cause of many troubles, but I think its likely
to be innocent in this case :-)  

Ian 

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

> It''s really unlikely to be xend that''s causing this. Are
you sure its
> not just xend running the network script to start the bridge?
That was my initial assumption, but running /etc/xen/scripts/network
start to start the bridge before doing transfers didn''t cause any
problem. Additionally, the bridge is still up after xend is shutdown.

I''ve just moved it into the server room where the switch is GigE so
we''ll find out shortly if it is some weird interaction with the
specific rev of the network card.
 
> 2.0 vintage xend is the cause of many troubles, but I think its likely
> to be innocent in this case :-)  
That would certainly be my thinking - but at this point it is the only
common item and I''m grasping at straws.

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

On 5/22/05, Kip Macy <kip.macy@gmail.com> wrote:
> > It''s really unlikely to be xend that''s causing this.
Are you sure its
> > not just xend running the network script to start the bridge?
> 
> That was my initial assumption, but running /etc/xen/scripts/network
> start to start the bridge before doing transfers didn''t cause any
> problem. Additionally, the bridge is still up after xend is shutdown.
> 
> I''ve just moved it into the server room where the switch is GigE
so
> we''ll find out shortly if it is some weird interaction with the
> specific rev of the network card.
Never mind. The two switches in the server room are 100 Mbit. 
 
       -Kip

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

On 22 May 2005, at 20:54, Kip Macy wrote:
>> It''s really unlikely to be xend that''s causing this.
Are you sure its
>> not just xend running the network script to start the bridge?
>
> That was my initial assumption, but running /etc/xen/scripts/network
> start to start the bridge before doing transfers didn''t cause any
> problem. Additionally, the bridge is still up after xend is shutdown.
Didn''t you say that scp immediately after boot (so presumably no xend 
and no bridge) also caused lockup? Sounds like some sort of race that 
may be affected by xend having started, but I doubt xend is to blame.

  -- Keir


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel