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xen-devel
RE: [Xen-devel] 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.
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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