RE: [Xen-devel] RE: Stability report GPLPV 0.11.0.308

["James Harper" <james.harper@xxxxxxxxxxxxxxxx>]

> 
> > 12961573357740: *** Assertion failed: pi.curr_mdl
> > 12961573357740: ***   Source File:
> > c:\projects\win-pvdrivers.hg\xennet\xennet6_tx.c, line 308
> 
> I took this report about a problem you had with "tx" to modify my
tests and
> to make them mostly tx-based while previously they were mostly
rx-based.
> Tests are running for 2d 18h now - no problems so far.
> 
> I wanted to tell you about one interesting observation. In my tests I
did two
> runs with modified xenvbd drivers. In run #1 I switched to the
scsiport driver
> of 0.11.0.312 and this made one domU crash after one day while with
> 0.11.0.312 storport version I always had more than 9 days (as I
reported
> earlier). In run #2 I forward-ported xenvbd from 0.11.0.213 (which is
totally
> stable on our systems) and again one domU crashed after one day. This
is
> really interesting and leads me to two thoughts:
> 

Actually one other thing you could try is simply using the Windows 2003
version of the drivers. That uses ndis5 and scsiport instead of ndis6
and storport. If that worked we could try running with ndis5 + storport
and see if that works okay. As long as they are from the same patchlevel
it shouldn't matter if you use one compiled for windows 2008 and one for
windows 2003 (it's possible that it might matter but I can't think of
anything).

James

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