RFR: 8003348: SA can not read core file on OS X

Staffan Larsen staffan.larsen at oracle.com
Fri Jan 18 03:58:42 PST 2013

Thanks for doing this Yumin!

I tried to apply you patch and run it, but I can't get SA to open a core file. You can see the exception I get below. Is there some kind of setup I need to do? This is against a jvmg build of Hotspot.

I also noticed that you forgot to update BugSpotAgent.java with the same changes as in HotspotAgent.java. This makes the jstack tool fail.

I will look at the changes more closely.


Opening core file, please wait...
Unable to open core file

Doesn't appear to be a HotSpot VM (could not find symbol "gHotSpotVMTypes" in
remote process)
sun.jvm.hotspot.debugger.DebuggerException: Doesn't appear to be a HotSpot VM (could not find symbol "gHotSpotVMTypes" in remote process)
	at sun.jvm.hotspot.HotSpotAgent.setupVM(HotSpotAgent.java:385)
	at sun.jvm.hotspot.HotSpotAgent.go(HotSpotAgent.java:287)
	at sun.jvm.hotspot.HotSpotAgent.attach(HotSpotAgent.java:146)
	at sun.jvm.hotspot.CLHSDB.attachDebugger(CLHSDB.java:188)
	at sun.jvm.hotspot.CLHSDB.run(CLHSDB.java:55)
	at sun.jvm.hotspot.CLHSDB.main(CLHSDB.java:35)
hsdb> Input stream closed.

On 17 jan 2013, at 22:23, Yumin Qi <yumin.qi at oracle.com> wrote:

> Hi,
>    Please review for the changes for SA to read core file on Mac OS X, this is feature is not implemented on previous releases.
>    This change made for SA to work on core file on Darwin, but still some function not fixed, such as 'pstack'. This is intended to integrate into 8.
>     http://cr.openjdk.java.net/~minqi/8003348/
>     Please take some time since the code change is a little bigger.
> Thanks very much
> Yumin

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