Xen devel - Feb 2005 - problems saving in 2.04

So, I upgraded to 2.04 and the saving still doesn''t work correctly, 
however when I run xfrd under gdb or strace -fF it works perfectly.

This would indicate that it is either a memory allocation error or a 
race condition somewhere, nice bug to track down :-(.

Any suggestions on where to look?

-----
CTO @ Fotango Ltd
+447834716919
http://www.fotango.com/

> So, I upgraded to 2.04 and the saving still doesn''t work
correctly,
> however when I run xfrd under gdb or strace -fF it works perfectly.
Hmm, very interesting.

Please can you try applying this patch to your xend (no need to
recompile) which stops xend swallowing useful debug output.

http://xen.bkbits.net:8080/xen-2.0-testing.bk/gnupatch@4207b472nHz4nbC_O
JgbSmfRVow8XQ
 
You might want to modify it to capture stdout to xend-debug.log too.
> This would indicate that it is either a memory allocation error or a 
> race condition somewhere, nice bug to track down :-(.
My bet would be on some stupid interaction with twisted and EAGAIN
return codes on the io path between xfrd and xend. I would instrument
the IO functions to see if they ever return error codes...

Thanks,
Ian


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