JDK-6310967 : SA: jstack -m produce failures in output
  • Type: Bug
  • Component: hotspot
  • Sub-Component: svc
  • Affected Version: hs20,6u10,7
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • OS: linux
  • CPU: generic,x86
  • Submitted: 2005-08-15
  • Updated: 2018-07-23
  • Resolved: 2012-07-03
The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

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JDK 6 JDK 7 JDK 8 Other
6u33Fixed 7u40Fixed 8Fixed hs23.2Fixed
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running jstack -m on netbeans 4.1 produce some errorneous output like:

0xffffe410      ????????
0x39619728      ????????
sun.jvm.hotspot.debugger.UnalignedAddressException: Trying to read at address: 0x43215272 with alignment: 4
        at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1.checkAlignment(LinuxDebuggerLocal.java:163)
        at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.readCInteger(LinuxDebuggerLocal.java:451)
        at sun.jvm.hotspot.debugger.DebuggerBase.readAddressValue(DebuggerBase.java:425)
        at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.readAddress(LinuxDebuggerLocal.java:405)
        at sun.jvm.hotspot.debugger.linux.LinuxAddress.getAddressAt(LinuxAddress.java:56)
        at sun.jvm.hotspot.debugger.linux.x86.LinuxX86CFrame.sender(LinuxX86CFrame.java:43)
        at sun.jvm.hotspot.tools.PStack.run(PStack.java:129)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)

EVALUATION http://hg.openjdk.java.net/lambda/lambda/hotspot/rev/b87e5a681416

EVALUATION Moving JPRT update to hs23.2 subcr.

EVALUATION http://hg.openjdk.java.net/hsx/hotspot-rt/hotspot/rev/b87e5a681416

EVALUATION Since more investigation is needed, changed state back to "accepted".

EVALUATION Stack walking may not work if the frames are not in walkable state. This might be the case here. But we need to investigate this more.