Fix GTK redraw call being called from non-GTK thread. #173602
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gtk_widget_queue_draw is not thread-safe, call it from an idle callback. Fixes flutter#173447
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This pull request correctly addresses a thread-safety issue by moving the gtk_widget_queue_draw call into an idle callback, ensuring it runs on the main GTK thread. The logic for handling the first frame has also been consolidated into the new redraw_cb function. This not only fixes the bug but also improves the code's structure and thread safety regarding the have_first_frame flag. The changes are well-implemented and effectively resolve the issue.
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The fix was found by enabling tsan in the Flutter engine build. It also showed some potential issues coming from the Linux task runner, which I will investigate in the future. |
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Just a thought, but feel free to merge!
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Also - I tested and it works well for me! CC: @loic-sharma |
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test-exempt: unblocks enabling tooling that catches it |
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Failed to create CP due to merge conflicts. |
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@robert-ancell @loic-sharma We'll need to manually CP this to https://github.com/flutter/flutter/tree/flutter-3.35-candidate.0. Can one of you help out here? Thanks! |
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gtk_widget_queue_draw is not thread-safe, call it from an idle callback. Fixes flutter#173447
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gtk_widget_queue_draw is not thread-safe, call it from an idle callback. Fixes flutter#173447
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And cherry pick for 3.36 branch as requested by @loic-sharma in #173669 |
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…ad (#173669) Cherry pick of #173602 Impacted users: All Linux users of Flutter Impact Description: Due to calling gtk_window_redraw on a Flutter thread a lock up may occur. The Flutter app will then become unresponsive. Workaround: No workaround Risk: Low - fix is to run the GTK call on the GTK thread which is what the correct behaviour should be. Test coverage: Rendering covered by existing tests, use of thread not explicitly tested, but #173660 opened to add this in future. Validation Steps: Run test program in #173447 which generates many frames and maximizes the chance of a lock up.
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…ad (#173667) Cherry pick of #173602 Impacted users: All Linux users of Flutter Impact Description: Due to calling gtk_window_redraw on a Flutter thread a lock up may occur. The Flutter app will then become unresponsive. Workaround: No workaround Risk: Low - fix is to run the GTK call on the GTK thread which is what the correct behaviour should be. Test coverage: Rendering covered by existing tests, use of thread not explicitly tested, but #173660 opened to add this in future. Validation Steps: Run test program in #173447 which generates many frames and maximizes the chance of a lock up.
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Roll Flutter from e2a347b14a18 to 34c2a3b158b2 (41 revisions) flutter/flutter@e2a347b...34c2a3b 2025-08-13 [email protected] [ Tool ] Mark Linux_pixel_7pro linux_chrome_dev_mode as bringup (flutter/flutter#173646) 2025-08-13 [email protected] [ Widget Preview ] Move `--dtd-url` from a global flag to a `widget-preview start` option (flutter/flutter#173712) 2025-08-13 [email protected] Null aware elements clean-ups (flutter/flutter#173074) 2025-08-13 [email protected] Roll Skia from 29e3e1ab7f62 to f7fdda3cd0e6 (3 revisions) (flutter/flutter#173709) 2025-08-13 [email protected] Regular windows win32 engine (flutter/flutter#173424) 2025-08-13 [email protected] Roll Dart SDK from a098cb676fd6 to 73153bdc1459 (1 revision) (flutter/flutter#173708) 2025-08-13 [email protected] Roll Fuchsia Linux SDK from vgv-rTf7i9PfcDq2Y... to I1TfNmsqTp7t3rO8e... (flutter/flutter#173690) 2025-08-13 [email protected] Roll Skia from 1170405c30cf to 29e3e1ab7f62 (2 revisions) (flutter/flutter#173689) 2025-08-13 [email protected] Roll Dart SDK from e2b7aec7333e to a098cb676fd6 (4 revisions) (flutter/flutter#173683) 2025-08-13 [email protected] Roll Skia from d06fdf03c6a1 to 1170405c30cf (4 revisions) (flutter/flutter#173681) 2025-08-13 [email protected] Roll Skia from 9ed4b4e53db2 to d06fdf03c6a1 (11 revisions) (flutter/flutter#173661) 2025-08-12 [email protected] Fix GTK redraw call being called from non-GTK thread. (flutter/flutter#173602) 2025-08-12 [email protected] [Impeller] Apply Y coordinate scaling when sampling from the destination texture in framebuffer advanced blends (flutter/flutter#173639) 2025-08-12 [email protected] Fix directional focus in nested scrollables with different axis (flutter/flutter#172875) 2025-08-12 [email protected] [ios][tools]do not log "bonjour not found" at all (unless verbose) (flutter/flutter#173569) 2025-08-12 [email protected] Remove jetifier usages (flutter/flutter#173548) 2025-08-12 [email protected] [ Tool ] Fix run_linux_chrome_dev_mode (flutter/flutter#173647) 2025-08-12 [email protected] [ios] Update iOS code signing CIPD instruction command (flutter/flutter#171173) 2025-08-12 [email protected] Reapply "Make device debuggable if useDwdsWebSocketConnection is true … (#173551)" (flutter/flutter#173628) 2025-08-12 [email protected] Roll Clang to 8c7a2ce01a77c96028fe2c8566f65c45ad9408d3 (flutter/flutter#173429) 2025-08-12 [email protected] [web] Fallback to CanvasKit when WebGL is not available (flutter/flutter#173629) 2025-08-12 [email protected] Roll Packages from a114ac2 to 08a9b2c (3 revisions) (flutter/flutter#173625) 2025-08-12 [email protected] [ Tool ] Fix crash from possible DDS startup race (flutter/flutter#173362) 2025-08-12 [email protected] Roll Skia from a2936eff2179 to 9ed4b4e53db2 (3 revisions) (flutter/flutter#173611) 2025-08-12 49699333+dependabot[bot]@users.noreply.github.com Bump actions/checkout from 4 to 5 in the all-github-actions group (flutter/flutter#173606) 2025-08-12 [email protected] Roll Dart SDK from c5fe48aee60d to e2b7aec7333e (1 revision) (flutter/flutter#173604) 2025-08-12 [email protected] Roll Skia from 44bb9d908ee4 to a2936eff2179 (21 revisions) (flutter/flutter#173603) 2025-08-12 [email protected] Fix the issue of over-scrolling in SliverMainAxisGroup with a PinnedHeaderSliver. (flutter/flutter#173349) 2025-08-12 [email protected] Roll Dart SDK from b2a23936f968 to c5fe48aee60d (2 revisions) (flutter/flutter#173596) 2025-08-11 [email protected] Update CanRenderTiledTexture unit tests (flutter/flutter#173553) 2025-08-11 [email protected] Update integration test for iOS deployment workflows (flutter/flutter#173566) 2025-08-11 [email protected] Enables vulkan for PowerVR B-Series (flutter/flutter#173561) 2025-08-11 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Reapply "Make device debuggable if useDwdsWebSocketConnection is true … (#173551)" (#173568)" (flutter/flutter#173587) 2025-08-11 [email protected] Roll Dart SDK from 8e882349fcab to b2a23936f968 (2 revisions) (flutter/flutter#173571) 2025-08-11 [email protected] Reapply "Make device debuggable if useDwdsWebSocketConnection is true … (#173551)" (flutter/flutter#173568) 2025-08-11 [email protected] Update CI iOS tests (flutter/flutter#173563) 2025-08-11 [email protected] Roll Packages from 34948d1 to a114ac2 (4 revisions) (flutter/flutter#173556) 2025-08-11 [email protected] Roll Fuchsia Linux SDK from HclTm0V8hgSpfqmtG... to vgv-rTf7i9PfcDq2Y... (flutter/flutter#173505) 2025-08-11 [email protected] Roll Dart SDK from 6a7ae1ffd1c9 to 8e882349fcab (2 revisions) (flutter/flutter#173499) 2025-08-11 [email protected] Update `ExpansibleController` in `ExpansionTile` `didUpdateWidget` (flutter/flutter#173175) 2025-08-11 [email protected] add format cmd to tools instruction (flutter/flutter#173428) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC [email protected],[email protected] on the revert to ensure that a human ...
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gtk_widget_queue_draw is not thread-safe, call it from an idle callback. Fixes flutter#173447
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gtk_widget_queue_draw is not thread-safe, call it from an idle callback. Fixes flutter#173447
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gtk_widget_queue_draw is not thread-safe, call it from an idle callback. Fixes flutter#173447
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gtk_widget_queue_draw is not thread-safe, call it from an idle callback. Fixes flutter#173447
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gtk_widget_queue_draw is not thread-safe, call it from an idle callback. Fixes flutter#173447
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gtk_widget_queue_draw is not thread-safe, call it from an idle callback.
Fixes #173447