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  1. Qt
  2. QTBUG-131476

Crash on deinitialization of QSqlDatabase object created in a thread

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Details

    • Bug
    • Resolution: Unresolved
    • P1: Critical
    • None
    • 6.4.0, 6.5.0, 6.6.0, 6.7.0, 6.8.0
    • Core: Threads, SQL Support
    • None
    • Windows 11
      MinGW 11.2
      Postgres 15
    • Windows

    Description

      The attached main.cpp file provides a minimal code example that reproduces the crash. When using SQLite instead of Postgres the problem doesn't happen.

      This issue can only be observed when executing the program within GDB. The backtrace.txt file contains a relevant segment of the stack trace for a reference.

      All Qt versions starting from 6.4.0 appear to be affected by this issue. 

      Bisecting qtbase narrowed it down to commit 4a93285 (https://github.com/qt/qtbase/commit/4a93285b166ceceaea2e10c8fc6a254d2f7093b9)

       

      Attachments

        1. backtrace.txt
          2 kB
        2. main.cpp
          0.5 kB

        Issue Links

          depends on

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-131892 QThread crash on thread-exit with adopted threads started by winpthreads

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Open
          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-134532 Crash on exit (with MinGW-w64-GCC): Segmentation fault in QSGRenderThread

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          For Gerrit Dashboard: QTBUG-131476
          # Subject Branch Project Status CR V
          606906,6 QThread/Win: restore use of Tls{Get,Set}Value() dev qt/qtbase Status: NEW +2 0
          607209,6 WIP: import LLVM's libcompiler-rt emutls.c implementation for MinGW/GCC dev qt/qtbase Status: NEW -2 +1

          Activity

            People

              Unassigned Unassigned
              e.zhuk Egor Zhuk
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              Dates

                Created:
                Updated:

                Gerrit Reviews