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  1. JDK
  2. JDK-4690662

CTW assertion at phaseX.cpp, 941 , MergeMem

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    Details

    • Subcomponent:
    • Resolved In Build:
      mantis
    • CPU:
      sparc
    • OS:
      solaris_8
    • Verification:
      Verified

      Description



      Name: fh87463 Date: 05/23/2002



      Following assertion occur when running Compile The Wrold tests on solsparc platform.

      #
      # HotSpot Virtual Machine Error, assertion failure
      # Please report this error at
      # http://java.sun.com/cgi-bin/bugreport.cgi
      #
      # Java VM: Java HotSpot(TM) Server VM (optimized+1.4.1+baseline+compiler2+20020521-163236-debug mixed mode)
      #
      # assert(loop_count < K, "infinite loop in PhaseGVN::transform")
      #
      # Error ID: /net/jano/export/disk05/hotspot/auto/ws_jano/fpt/src/share/vm/opto/phaseX.cpp, 941 [ Patched ]
      #
      # Problematic Thread: prio=5 tid=0x11b268 nid=0xb runnable
      #
      This assertion occured in following log files
      ========================================================
      file:/net/sqesvr/export/vsn/users/ctwresult/solsparc/baseline/compiler2/20020521-163236/Failed/ctw.jlapack.jar.1.txt

      Binary used:
        Fastdebug binary of [baseline/compiler2/20020521-163236] from build archive page.
        /net/jano.sfbay/export/disk05/hotspot/auto/ar/baseline/20020521-163236/

      Please look into rerun scripts for more detail.

      #########################
      # To reproduce the bug:
      #########################
      1. cd /net/jano.sfbay/export/disk20/GammaBase/Bugs/[bug ID]
      2. edit script if needed.
      3. run one of the shell scripts:
         run.jlapack.jar.1.ksh



      From: Mike Paleczny <###@###.###>
      To: Francis Hsu <###@###.###>
      Subject: Re: BugId 4681949 : (P2/S3) Has been Updated - by jmasa

      Good morning <grin>,
          I've confirmed that this is a different bug than 4681949 and have a
      prototype source patch which I am testing further. While duplicating
      the problem I found that it doesn't reproduce with a 1.4 J2SE even with
      the current 1.4.1 JVM. While the bug is in the compiler, it appears to
      be made visible by a 1.4.1 change in the libraries.

      Curiosity:
          I didn't find this jar file in the list for 4681949. Is this a new
      failure, or where there so many jar file failures for 4681949 that the
      bug didn't include every jar filename?

          Mike.


      Mike Paleczny wrote:
      > Thanks Francis,
      > This assertion is an indicator for "any" infinite Ideal() call failure.
      > After checking the output in ctw.jlapack.jar.1.txt, I believe this should
      > be filed as a different bug:
      >
      > Synopsis: CTW assertion at phaseX.cpp, 941, MergeMem
      >
      > I will confirm that this is a different bug in a couple hours, but the
      > previous bug came from optimizing CMoveINode which does not appear in
      > the new printout.
      >
      > Mike.



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            Assignee:
            mpalecznsunw Michael Paleczny (Inactive)
            Reporter:
            fhsusunw Francis Hsu (Inactive)
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