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  1. Qt
  2. QTBUG-99224

Crash in QPixmapCache

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Details

    • Bug
    • Resolution: Fixed
    • P2: Important
    • None
    • 6.2.2
    • GUI: Painting
    • None
    • Linux/Other display system

    Description

      The QPixmapCache continues to fall...

      We have a large number of embedded Linux platforms with different architectures, but they all crash the same:

      Segmentation fault (b) signal catched, backtrace:
0x73fcc76c _ZN12QPixmapCache5clearEv+0x7b8
Segmentation fault
Finished with code 139

      # addr2line -f -e libQt6Gui.so.6.2.2 13F784 _ZN6QCacheIN12QPixmapCache3KeyE17QPixmapCacheEntryE5ValueD4Ev qtbase-6.2.2/src/corelib/tools/qcache.h:71

      It is worth saying that on Qt 6.2.1 the falls were more diverse and numerous.

      However, for us, this is still a significant regression after the transition from Qt 5.12, on which there were no falls.

      Attachments

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-99710 Regression: QCache crash

          • P0: Blocker - MUST be fixed ASAP. This includes issues that prevent/block further Qt development; Legal issues & Serious data loss issues.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-91445 Crash in QPixmapCache::setCacheLimit in Windows

          • 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.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-97903 Sporadic crash on QPMCache::flushDetachedPixmaps

          • 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.
          • Closed
          For Gerrit Dashboard: QTBUG-99224
          # Subject Branch Project Status CR V
          386695,3 New implementation for QPixmapCache dev qt/qtbase Status: NEW 0 0
          389459,5 QCache: fix potential crash in trim() dev qt/qtbase Status: MERGED +2 0
          389601,2 QCache: fix potential crash in trim() 6.2.3 qt/qtbase Status: MERGED +2 0
          389797,2 QCache: fix potential crash in trim() 6.3 qt/qtbase Status: MERGED +2 0
          389798,2 QCache: fix potential crash in trim() 6.2 qt/qtbase Status: MERGED +2 0

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            People

              manordheim Mårten Nordheim
              maksimshapovalov Maksim Shapovalov
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              Dates

                Created:
                Updated:
                Resolved:

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                  There is 1 open Gerrit change