RFR(XS): 8130676: [TESTBUG] aix: Port CreateCoreDumpOnCrash added in 8078121
goetz.lindenmaier at sap.com
Sat Jul 11 16:01:02 UTC 2015
yes, you are right, it's not read protected.
I don't think linux on aarch will introduce such obstacles :)
And if so, we will have cleared the way!
From: Christian Thalinger [mailto:christian.thalinger at oracle.com]
Sent: Dienstag, 7. Juli 2015 17:10
To: Lindenmaier, Goetz
Cc: hotspot-dev at openjdk.java.net
Subject: Re: RFR(XS): 8130676: [TESTBUG] aix: Port CreateCoreDumpOnCrash added in 8078121
> On Jul 7, 2015, at 6:46 AM, Lindenmaier, Goetz <goetz.lindenmaier at sap.com> wrote:
> This test does Utils.getUnsafe().getInt(0) effectively reading from address '0'
> to cause a crash.
> Unfortunately this is possible on aix, as the zero page is not write protected.
You mean read protected, right? Back in the day when I was working on another JVM we had similar issues on ARM systems (I can’t remember exactly which). I wonder if this will hit us too one day...
> Fix: use putInt() instead.
> Please review this tiny change. I please need a sponsor.
> Best regards,
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