Rickard,

I think it looks good (not a Reviewer).

Cheers
Markus

-----Original Message-----
From: Rickard Bäckman 
Sent: den 4 juli 2013 11:30
To: serviceability-dev@openjdk.java.net serviceability-dev@openjdk.java.net; 
hotspot-runtime-...@openjdk.java.net
Subject: RFR(S): 8016131: nsk/sysdict/vm/stress/chain tests crash the VM in 
'entry_frame_is_first()'

Hi,

can I please have a couple of reviews for this change?

The problem in this crash was that we were given an incorrect fp (in this case 
0x0) and had a pc that matched the C -> Java entry frame. The code then 
dereferenced fp +- offset.

This change verifies that the fp +- offset is actually on the stack of the 
thread before doing the derefencing.

Webrev: http://cr.openjdk.java.net/~rbackman/8016131/

Thanks
/R

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