RFR: JDK-8077265 Modify assert to help debug JDK-8068448

Stefan Karlsson stefan.karlsson at oracle.com
Thu Apr 9 14:01:08 UTC 2015

Hi Eric,

On 2015-04-09 15:19, Eric Caspole wrote:
> HI everybody,
> Here is a webrev to add more asserts related to debugging JDK-8068448. 
> Beyond capturing more info in the original assert, after looking at 
> another core I added more asserts to make sure there is no other place 
> where old gen allocations would overrun the start array.

Why didn't these two new asserts get the same, more informative, error 
message as the first assert you changed? Maybe you could extract the 
check out to a helper macro that prints the relevant information?

Another point that Bengt mentioned yesterday, is that we don't really 
need to print the old_gen part of the assert. It's already printed in 
the hs_err file.


>  http://cr.openjdk.java.net/~ecaspole/JDK-8077265/00/webrev/
> Passes JPRT.
> Thanks,
> Eric

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