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Dear Ingo,

Can I ask if your images are in an NFS mounted directory? If so, then
you may need to change the timeout that the NFS mount uses. I've had
similar problems before (with simulation data files though, not x-ray
image files)

Andy 

On Tue, 2006-08-29 at 08:53 +0200, Ingo P. Korndoerfer wrote:
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> 
> 
> dear colleagues,
> 
> when processing with mosflm626 in batch mode (but not when processing
> interactively) we very frequently get mosflm crashes with 'system 5 i/o'
> errors. the problem is somewhat elusive, since the crashes are not
> strictly reproducible. when i process the same dataset using the same
> parameters 10 times,  it may crash in seven attempts and run fine in
> three. the problem also is not reproducible on all hardware. mosflm
> gives no further details as to the i/o unit that causes the problem. the
> crashes exclusively occur in problematic datasets and can almost always
> be overcome by subtle changes in the processing parameters. while i can
> automate the process of parameter adjustment, this behaviour consumes
> more computing resources than desirable, and i was wondering whether
> anybody would have observed this and would have an idea (short of buying
> new hardware or installing a different operating system) about how to
> catch these crashes cleanly.
> 
> we are using mandrake 10.2 with linux 2.6.11-12mdksmp and i have
> ccp4-6.0.1 installed. the problem occurs with mosflm from this
> distribution, but also with previous as well as the very latest release
> from harry powell`s pages.
> 
> any ideas welcome ...
> 
> greetings
> 
> ingo
> 


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