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  1. Core Server
  2. SERVER-102032

GDB sometimes fails when fission is enabled

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    • Type: Icon: Bug Bug
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
    • 8.2.0-rc0
    • Affects Version/s: None
    • Component/s: None
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      bazel build --mongo_toolchain_version=v5 --config=dbg +util_test

      /opt/mongodbtoolchain/v5/bin/gdb bazel-bin/src/mongo/util/util_test
      ...
      (gdb) b read_through_cache_test.cpp:426
      ...
      /data/mci/5babb3b2408085c5e3755daf98d92cf1/toolchain-builder/tmp/build-gdb-v5.sh-eim/src/gdb-15.2/gdb/dwarf2/read.h:284: internal-error: version: Assertion `m_dwarf_version != 0' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n)

      This repro only happens with the v5 GDB toolchain, does not repro with the v4 toolchain.

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      bazel build --mongo_toolchain_version=v5 --config=dbg +util_test /opt/mongodbtoolchain/v5/bin/gdb bazel-bin/src/mongo/util/util_test ... (gdb) b read_through_cache_test.cpp:426 ... /data/mci/5babb3b2408085c5e3755daf98d92cf1/toolchain-builder/tmp/build-gdb-v5.sh-eim/src/gdb-15.2/gdb/dwarf2/read.h:284: internal-error: version: Assertion `m_dwarf_version != 0' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n) This repro only happens with the v5 GDB toolchain, does not repro with the v4 toolchain.
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      Sometimes when debugging with fissions gdb can give the error:

      internal-error: version: Assertion `m_dwarf_version != 0' failed.

      this error goes away when fission is disabled. Find out the root cause and see what the best fix for this error is, ideally without disabling fission.

            Assignee:
            daniel.moody@mongodb.com Daniel Moody
            Reporter:
            andrew.bradshaw@mongodb.com Andrew Bradshaw
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              Created:
              Updated:
              Resolved: