It's hard to image in a hardware problem for something as simple as 
flushspecific, but you never know.  The trace seems to show the response 
being received but tddl expecting/reading something more.

To isolate the issue, you might try the IBM TPM utilities at

https://sourceforge.net/projects/ibmswtpm/

This isn't production code, but is useful for debugging.  It could 
indicate whether the problem is within tcsd or the device driver/TPM.

On 8/18/2015 7:03 PM, Mike Gerow wrote:
>
> I'm really at a loss for how to continue diagnosing this, though. It
> might be a hardware issue, but even if that's the case it'd be nice to
> find a way to try to prevent it from happening as often as it does
> (currently when the TPM breaks like this the only course of action users
> have is to restart their machine). I can probably provide some more
> detailed logs if they would help.




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