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  1. MariaDB MaxScale
  2. MXS-2343

build with ASAN=Y generates incorrect extremely huge core dumps

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Not a Bug
    • None
    • N/A
    • N/A
    • None

    Description

      if Maxscale is built with `-DWITH_ASAN=Y` and Maxscale crashes the core dump file is broken.

      GBD reports something like:

      bq. BFD: Warning: /home/vagrant/core-maxscale-6-997-995-8590-1550622059 is truncated: expected core file size >= 15393782775808, found: 2232320.
      bq. [New LWP 8590]
      bq. [New LWP 8591]
      bq. [New LWP 8592]
      bq. [New LWP 8593]
      bq. [New LWP 8594]
      bq. [New LWP 8595]
      bq. [New LWP 8596]
      bq. [New LWP 8597]
      bq. [New LWP 8598]
      bq. [New LWP 8599]
      bq. [New LWP 8600]
      bq. Cannot access memory at address 0x7fc916c35128
      bq. Cannot access memory at address 0x7fc916c35120
      bq. Failed to read a valid object file image from memory.
      bq. Core was generated by `/usr/bin/maxscale'.
      bq. Program terminated with signal 6, Aborted.
      bq. #0  0x00007fc9066f02d2 in ?? ()
      bq. (gdb) bt
      bq. Python Exception <class 'gdb.MemoryError'> Cannot access memory at address 0x7ffdb960e5c0: 
      bq. (gdb) 
      bq. 
      

      examples:

      http://max-tst-01.mariadb.com/LOGS/run_test-926/LOGS/mxs2057_systemd_watchdog/000/core-maxscale-6-997-995-8590-1550622059
      http://max-tst-01.mariadb.com/LOGS/run_test-926/LOGS/mxs1719/000/core-maxscale-6-997-995-5736-1550621476
      http://max-tst-01.mariadb.com/LOGS/run_test-926/LOGS/mxs813_long_hostname/000/core-maxscale-6-997-995-5161-1550621321

      (binary for these coredumps is here =http://max-tst-01.mariadb.com/ci-repository/./2.3-buildbot-Feb19-20:00:07/mariadb-maxscale/centos/7/x86_64//)

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            Unassigned Unassigned
            tturenko Timofey Turenko
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              Created:
              Updated:
              Resolved:

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