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  1. JDK
  2. JDK-8254606

x86_32: assert(all_ro_bytes == ro_all) failed: everything should have been counted

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P3
    • Resolution: Duplicate
    • Affects Version/s: 16
    • Fix Version/s: None
    • Component/s: hotspot
    • Labels:
      None

      Description

      Testing the JDK-8254125 fix candidate. runtime/cds/SharedArchiveFile.java used to fail with the exception from JDK-8254125, but after the candidate fix it fails with:

      ```
      $ CONF=linux-x86-server-fastdebug make images run-test TEST=runtime/cds/SharedArchiveFile.java

      # A fatal error has been detected by the Java Runtime Environment:
      #
      # Internal Error (/home/shade/trunks/jdk/src/hotspot/share/memory/dumpAllocStats.cpp:113), pid=439540, tid=439548
      # assert(all_ro_bytes == ro_all) failed: everything should have been counted
      ```

      Adding `-Xlog:cds=debug` to the test and `msg.flush()` to `DumpAllocStats::print_stats` reveals a difference of 8 bytes between "ro used" and ro calculated:

      ```
      [0.742s][debug ][cds] ro space: 6257896 [ 69.0% of total] out of 6258688 bytes [100.0% used] at 0x8026a000
      ...
      [0.742s][debug ][cds] --------------------+---------------------------+---------------------------+--------------------------
      [0.742s][debug ][cds] Total : 120738 6257888 100.0 | 24192 2528152 100.0 | 144930 8786040 100.0
      ```

      See: 6257896 - 6257888 = 8

      Is this the same issue as JDK-8254125, or something else?

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              Assignee:
              iklam Ioi Lam
              Reporter:
              shade Aleksey Shipilev
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                Dates

                Created:
                Updated:
                Resolved: