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Add logging to figure out jvm crashes for hot_mode_tests#186107

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May 8, 2026
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Add logging to figure out jvm crashes for hot_mode_tests#186107
auto-submit[bot] merged 3 commits into
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gmackall:try_catting_File

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@gmackall gmackall commented May 6, 2026

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Prints out the jvm crash seen here:
JVM crash log found: file:///opt/s/w/ir/x/t/gallery_workspace/edited_flutter_gallery/android/hs_err_pid50777.log
https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8683419392623582177/+/u/step_is_flaky:_run_hot_mode_dev_cycle__benchmark/stdout

in most of the flaking tests. Maybe will help us find the root cause.

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gmackall marked this pull request as ready for review May 6, 2026 00:15
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Code Review

This pull request adds exit code verification for Flutter processes in hot mode tests and introduces a helper function to retrieve and print JVM crash logs upon failure. Feedback suggests documenting the new function according to the style guide and adding error handling to the log retrieval logic to prevent masking the original process failure.

Comment thread dev/devicelab/lib/tasks/hot_mode_tests.dart
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
@github-actions github-actions Bot removed the CICD Run CI/CD label May 6, 2026
@gmackall gmackall added the CICD Run CI/CD label May 6, 2026
@github-actions github-actions Bot removed the CICD Run CI/CD label May 7, 2026
@gmackall gmackall added the CICD Run CI/CD label May 7, 2026
@jesswrd jesswrd added the autosubmit Merge PR when tree becomes green via auto submit App label May 8, 2026
@auto-submit
auto-submit Bot added this pull request to the merge queue May 8, 2026
Merged via the queue into flutter:master with commit 08d8c95 May 8, 2026
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@flutter-dashboard flutter-dashboard Bot removed the autosubmit Merge PR when tree becomes green via auto submit App label May 8, 2026
lamnhan066 pushed a commit to lamnhan066/flutter that referenced this pull request May 10, 2026
…86107)

Prints out the jvm crash seen here:
`JVM crash log found:
file:///opt/s/w/ir/x/t/gallery_workspace/edited_flutter_gallery/android/hs_err_pid50777.log`

https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8683419392623582177/+/u/step_is_flaky:_run_hot_mode_dev_cycle__benchmark/stdout

in most of the flaking tests. Maybe will help us find the root cause.

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
auto-submit Bot pushed a commit to flutter/packages that referenced this pull request May 14, 2026
Roll Flutter from 707dbc0420a3 to 23f6f5853f50 (149 revisions)

flutter/flutter@707dbc0...23f6f58

2026-05-12 [email protected] Add 'cp: review' label to the manual cherrypick process (flutter/flutter#186158)
2026-05-12 [email protected] Roll Packages from 19ec8b8 to 93cbed6 (3 revisions) (flutter/flutter#186401)
2026-05-12 [email protected] Removes SDF option for macOS (always enabled) (flutter/flutter#186265)
2026-05-12 [email protected] docs: fix typos in flutter_tools comments (flutter/flutter#186321)
2026-05-12 [email protected] Pass XcodeBasedProject instead of String to functions in XcodeProjectInterpreter (flutter/flutter#186378)
2026-05-12 [email protected] Update iOS scenario app test goldens to match changes from flutter/flutter#182662 (flutter/flutter#186390)
2026-05-12 [email protected] Roll Skia from ad0aff15b9fa to 77a21bc723dc (2 revisions) (flutter/flutter#186396)
2026-05-12 [email protected] Migrate focus_node.unfocus.0.dart to use `RadioGroup` (flutter/flutter#183979)
2026-05-12 [email protected] Roll Skia from 91d3c1e730af to ad0aff15b9fa (7 revisions) (flutter/flutter#186391)
2026-05-12 [email protected] [Flutter GPU] Allow customizing the vertex layout on a RenderPipeline (flutter/flutter#186310)
2026-05-12 [email protected] Fix `EmbedderTest.CanRenderTextWithImpellerMetal` test breakage (flutter/flutter#186262)
2026-05-12 [email protected] Roll Fuchsia Linux SDK from rFhU-YPqdCRCtCz7b... to z7ICmPtn4hspu02zk... (flutter/flutter#186384)
2026-05-12 [email protected] [Impeller] GLES: lazily allocate texture mip levels on first per-level write (flutter/flutter#186302)
2026-05-12 [email protected] [Android] Propagate --enable-flutter-gpu Intent extra to engine args (flutter/flutter#186298)
2026-05-11 [email protected] [ci] update no-response workflow to also look for old label name in e… (flutter/flutter#186373)
2026-05-11 [email protected] [ImpellerC] Write a depfile when --shader-bundle is in use (flutter/flutter#186341)
2026-05-11 [email protected] docs: fix doubled-word typos in comments (flutter/flutter#186320)
2026-05-11 [email protected] Roll Skia from 32281401997e to 91d3c1e730af (4 revisions) (flutter/flutter#186368)
2026-05-11 [email protected] Show SwiftPM warnings right before iOS/macOS build (flutter/flutter#185984)
2026-05-11 [email protected] Convert rebuilding-flutter-tool script to dart (flutter/flutter#185089)
2026-05-11 [email protected] Use Xcode's LLDB (flutter/flutter#186273)
2026-05-11 [email protected] Remove `currentMainUri` from `generateMainDartWithPluginRegistrant` (flutter/flutter#185907)
2026-05-11 [email protected] Roll Skia from 2514f6b5f92b to 32281401997e (1 revision) (flutter/flutter#186349)
2026-05-11 [email protected] Roll Packages from 92552b1 to 19ec8b8 (4 revisions) (flutter/flutter#186350)
2026-05-11 [email protected] Check for absolute paths in skills.  (flutter/flutter#185632)
2026-05-11 [email protected] Roll Skia from 9fb7d2814642 to 2514f6b5f92b (1 revision) (flutter/flutter#186347)
2026-05-11 [email protected] Roll Skia from 8cafb209e836 to 9fb7d2814642 (4 revisions) (flutter/flutter#186335)
2026-05-10 [email protected] Roll Fuchsia Linux SDK from sOBiPJb0xznDBZlf5... to rFhU-YPqdCRCtCz7b... (flutter/flutter#186328)
2026-05-10 [email protected] Roll Skia from 05a03f99c74e to 8cafb209e836 (1 revision) (flutter/flutter#186315)
2026-05-10 [email protected] [Impeller] Vulkan: don't drop user-supplied viewport X, Y, and depth range (flutter/flutter#185886)
2026-05-09 [email protected] Update Fuchsia tests to subpackage their child components (flutter/flutter#186259)
2026-05-09 [email protected] Fix SelectableText crash with inline lambda contextMenuBuilder (flutter/flutter#184990)
2026-05-09 [email protected] Roll Fuchsia Linux SDK from 5_TnhTsHSqtCx37o6... to sOBiPJb0xznDBZlf5... (flutter/flutter#186289)
2026-05-09 [email protected] Roll Skia from dc78d4bd2efb to 05a03f99c74e (2 revisions) (flutter/flutter#186283)
2026-05-09 [email protected] Improve non rect platform view rendering  (flutter/flutter#182662)
2026-05-08 [email protected] Roll Skia from 31521f8508c7 to dc78d4bd2efb (1 revision) (flutter/flutter#186278)
2026-05-08 [email protected] Moves wide_gamut_macos to arm64 (flutter/flutter#186214)
2026-05-08 98614782+auto-submit[bot]@users.noreply.github.com Reverts "[iOS] Migrate VSyncClient to a pure Obj-C implementation (#186166)" (flutter/flutter#186266)
2026-05-08 [email protected] Roll Skia from a00db8749edb to 31521f8508c7 (2 revisions) (flutter/flutter#186264)
2026-05-08 [email protected] Optimize compatible `DrawDiffRoundRect` calls to use `DrawRoundRect` (flutter/flutter#186203)
2026-05-08 [email protected] [triage] Add Flutter GPU as a triage team (flutter/flutter#186263)
2026-05-08 [email protected] doc: Unified Check-Run User manual (flutter/flutter#186210)
2026-05-08 [email protected] Roll Skia from 5f7adf4403d6 to a00db8749edb (1 revision) (flutter/flutter#186257)
2026-05-08 [email protected] Roll Packages from 0411f1d to 92552b1 (1 revision) (flutter/flutter#186256)
2026-05-08 [email protected] Add logging to figure out jvm crashes for `hot_mode_tests` (flutter/flutter#186107)
2026-05-08 [email protected] Roll Skia from 926c09741ce2 to 5f7adf4403d6 (3 revisions) (flutter/flutter#186242)
...
stuartmorgan-g pushed a commit to flutter/core-packages that referenced this pull request Jun 9, 2026
Roll Flutter from 707dbc0420a3 to 23f6f5853f50 (149 revisions)

flutter/flutter@707dbc0...23f6f58

2026-05-12 [email protected] Add 'cp: review' label to the manual cherrypick process (flutter/flutter#186158)
2026-05-12 [email protected] Roll Packages from 19ec8b861676 to 93cbed65f336 (3 revisions) (flutter/flutter#186401)
2026-05-12 [email protected] Removes SDF option for macOS (always enabled) (flutter/flutter#186265)
2026-05-12 [email protected] docs: fix typos in flutter_tools comments (flutter/flutter#186321)
2026-05-12 [email protected] Pass XcodeBasedProject instead of String to functions in XcodeProjectInterpreter (flutter/flutter#186378)
2026-05-12 [email protected] Update iOS scenario app test goldens to match changes from flutter/flutter#182662 (flutter/flutter#186390)
2026-05-12 [email protected] Roll Skia from ad0aff15b9fa to 77a21bc723dc (2 revisions) (flutter/flutter#186396)
2026-05-12 [email protected] Migrate focus_node.unfocus.0.dart to use `RadioGroup` (flutter/flutter#183979)
2026-05-12 [email protected] Roll Skia from 91d3c1e730af to ad0aff15b9fa (7 revisions) (flutter/flutter#186391)
2026-05-12 [email protected] [Flutter GPU] Allow customizing the vertex layout on a RenderPipeline (flutter/flutter#186310)
2026-05-12 [email protected] Fix `EmbedderTest.CanRenderTextWithImpellerMetal` test breakage (flutter/flutter#186262)
2026-05-12 [email protected] Roll Fuchsia Linux SDK from rFhU-YPqdCRCtCz7b... to z7ICmPtn4hspu02zk... (flutter/flutter#186384)
2026-05-12 [email protected] [Impeller] GLES: lazily allocate texture mip levels on first per-level write (flutter/flutter#186302)
2026-05-12 [email protected] [Android] Propagate --enable-flutter-gpu Intent extra to engine args (flutter/flutter#186298)
2026-05-11 [email protected] [ci] update no-response workflow to also look for old label name in e… (flutter/flutter#186373)
2026-05-11 [email protected] [ImpellerC] Write a depfile when --shader-bundle is in use (flutter/flutter#186341)
2026-05-11 [email protected] docs: fix doubled-word typos in comments (flutter/flutter#186320)
2026-05-11 [email protected] Roll Skia from 32281401997e to 91d3c1e730af (4 revisions) (flutter/flutter#186368)
2026-05-11 [email protected] Show SwiftPM warnings right before iOS/macOS build (flutter/flutter#185984)
2026-05-11 [email protected] Convert rebuilding-flutter-tool script to dart (flutter/flutter#185089)
2026-05-11 [email protected] Use Xcode's LLDB (flutter/flutter#186273)
2026-05-11 [email protected] Remove `currentMainUri` from `generateMainDartWithPluginRegistrant` (flutter/flutter#185907)
2026-05-11 [email protected] Roll Skia from 2514f6b5f92b to 32281401997e (1 revision) (flutter/flutter#186349)
2026-05-11 [email protected] Roll Packages from 92552b16bcc1 to 19ec8b861676 (4 revisions) (flutter/flutter#186350)
2026-05-11 [email protected] Check for absolute paths in skills.  (flutter/flutter#185632)
2026-05-11 [email protected] Roll Skia from 9fb7d2814642 to 2514f6b5f92b (1 revision) (flutter/flutter#186347)
2026-05-11 [email protected] Roll Skia from 8cafb209e836 to 9fb7d2814642 (4 revisions) (flutter/flutter#186335)
2026-05-10 [email protected] Roll Fuchsia Linux SDK from sOBiPJb0xznDBZlf5... to rFhU-YPqdCRCtCz7b... (flutter/flutter#186328)
2026-05-10 [email protected] Roll Skia from 05a03f99c74e to 8cafb209e836 (1 revision) (flutter/flutter#186315)
2026-05-10 [email protected] [Impeller] Vulkan: don't drop user-supplied viewport X, Y, and depth range (flutter/flutter#185886)
2026-05-09 [email protected] Update Fuchsia tests to subpackage their child components (flutter/flutter#186259)
2026-05-09 [email protected] Fix SelectableText crash with inline lambda contextMenuBuilder (flutter/flutter#184990)
2026-05-09 [email protected] Roll Fuchsia Linux SDK from 5_TnhTsHSqtCx37o6... to sOBiPJb0xznDBZlf5... (flutter/flutter#186289)
2026-05-09 [email protected] Roll Skia from dc78d4bd2efb to 05a03f99c74e (2 revisions) (flutter/flutter#186283)
2026-05-09 [email protected] Improve non rect platform view rendering  (flutter/flutter#182662)
2026-05-08 [email protected] Roll Skia from 31521f8508c7 to dc78d4bd2efb (1 revision) (flutter/flutter#186278)
2026-05-08 [email protected] Moves wide_gamut_macos to arm64 (flutter/flutter#186214)
2026-05-08 98614782+auto-submit[bot]@users.noreply.github.com Reverts "[iOS] Migrate VSyncClient to a pure Obj-C implementation (#186166)" (flutter/flutter#186266)
2026-05-08 [email protected] Roll Skia from a00db8749edb to 31521f8508c7 (2 revisions) (flutter/flutter#186264)
2026-05-08 [email protected] Optimize compatible `DrawDiffRoundRect` calls to use `DrawRoundRect` (flutter/flutter#186203)
2026-05-08 [email protected] [triage] Add Flutter GPU as a triage team (flutter/flutter#186263)
2026-05-08 [email protected] doc: Unified Check-Run User manual (flutter/flutter#186210)
2026-05-08 [email protected] Roll Skia from 5f7adf4403d6 to a00db8749edb (1 revision) (flutter/flutter#186257)
2026-05-08 [email protected] Roll Packages from cfdd1d3 to 92552b16bcc1 (1 revision) (flutter/flutter#186256)
2026-05-08 [email protected] Add logging to figure out jvm crashes for `hot_mode_tests` (flutter/flutter#186107)
2026-05-08 [email protected] Roll Skia from 926c09741ce2 to 5f7adf4403d6 (3 revisions) (flutter/flutter#186242)
...
creatorpiyush pushed a commit to creatorpiyush/packages that referenced this pull request Jun 10, 2026
…er#11700)

Roll Flutter from 707dbc0420a3 to 23f6f5853f50 (149 revisions)

flutter/flutter@707dbc0...23f6f58

2026-05-12 [email protected] Add 'cp: review' label to the manual cherrypick process (flutter/flutter#186158)
2026-05-12 [email protected] Roll Packages from 19ec8b8 to 93cbed6 (3 revisions) (flutter/flutter#186401)
2026-05-12 [email protected] Removes SDF option for macOS (always enabled) (flutter/flutter#186265)
2026-05-12 [email protected] docs: fix typos in flutter_tools comments (flutter/flutter#186321)
2026-05-12 [email protected] Pass XcodeBasedProject instead of String to functions in XcodeProjectInterpreter (flutter/flutter#186378)
2026-05-12 [email protected] Update iOS scenario app test goldens to match changes from flutter/flutter#182662 (flutter/flutter#186390)
2026-05-12 [email protected] Roll Skia from ad0aff15b9fa to 77a21bc723dc (2 revisions) (flutter/flutter#186396)
2026-05-12 [email protected] Migrate focus_node.unfocus.0.dart to use `RadioGroup` (flutter/flutter#183979)
2026-05-12 [email protected] Roll Skia from 91d3c1e730af to ad0aff15b9fa (7 revisions) (flutter/flutter#186391)
2026-05-12 [email protected] [Flutter GPU] Allow customizing the vertex layout on a RenderPipeline (flutter/flutter#186310)
2026-05-12 [email protected] Fix `EmbedderTest.CanRenderTextWithImpellerMetal` test breakage (flutter/flutter#186262)
2026-05-12 [email protected] Roll Fuchsia Linux SDK from rFhU-YPqdCRCtCz7b... to z7ICmPtn4hspu02zk... (flutter/flutter#186384)
2026-05-12 [email protected] [Impeller] GLES: lazily allocate texture mip levels on first per-level write (flutter/flutter#186302)
2026-05-12 [email protected] [Android] Propagate --enable-flutter-gpu Intent extra to engine args (flutter/flutter#186298)
2026-05-11 [email protected] [ci] update no-response workflow to also look for old label name in e… (flutter/flutter#186373)
2026-05-11 [email protected] [ImpellerC] Write a depfile when --shader-bundle is in use (flutter/flutter#186341)
2026-05-11 [email protected] docs: fix doubled-word typos in comments (flutter/flutter#186320)
2026-05-11 [email protected] Roll Skia from 32281401997e to 91d3c1e730af (4 revisions) (flutter/flutter#186368)
2026-05-11 [email protected] Show SwiftPM warnings right before iOS/macOS build (flutter/flutter#185984)
2026-05-11 [email protected] Convert rebuilding-flutter-tool script to dart (flutter/flutter#185089)
2026-05-11 [email protected] Use Xcode's LLDB (flutter/flutter#186273)
2026-05-11 [email protected] Remove `currentMainUri` from `generateMainDartWithPluginRegistrant` (flutter/flutter#185907)
2026-05-11 [email protected] Roll Skia from 2514f6b5f92b to 32281401997e (1 revision) (flutter/flutter#186349)
2026-05-11 [email protected] Roll Packages from 92552b1 to 19ec8b8 (4 revisions) (flutter/flutter#186350)
2026-05-11 [email protected] Check for absolute paths in skills.  (flutter/flutter#185632)
2026-05-11 [email protected] Roll Skia from 9fb7d2814642 to 2514f6b5f92b (1 revision) (flutter/flutter#186347)
2026-05-11 [email protected] Roll Skia from 8cafb209e836 to 9fb7d2814642 (4 revisions) (flutter/flutter#186335)
2026-05-10 [email protected] Roll Fuchsia Linux SDK from sOBiPJb0xznDBZlf5... to rFhU-YPqdCRCtCz7b... (flutter/flutter#186328)
2026-05-10 [email protected] Roll Skia from 05a03f99c74e to 8cafb209e836 (1 revision) (flutter/flutter#186315)
2026-05-10 [email protected] [Impeller] Vulkan: don't drop user-supplied viewport X, Y, and depth range (flutter/flutter#185886)
2026-05-09 [email protected] Update Fuchsia tests to subpackage their child components (flutter/flutter#186259)
2026-05-09 [email protected] Fix SelectableText crash with inline lambda contextMenuBuilder (flutter/flutter#184990)
2026-05-09 [email protected] Roll Fuchsia Linux SDK from 5_TnhTsHSqtCx37o6... to sOBiPJb0xznDBZlf5... (flutter/flutter#186289)
2026-05-09 [email protected] Roll Skia from dc78d4bd2efb to 05a03f99c74e (2 revisions) (flutter/flutter#186283)
2026-05-09 [email protected] Improve non rect platform view rendering  (flutter/flutter#182662)
2026-05-08 [email protected] Roll Skia from 31521f8508c7 to dc78d4bd2efb (1 revision) (flutter/flutter#186278)
2026-05-08 [email protected] Moves wide_gamut_macos to arm64 (flutter/flutter#186214)
2026-05-08 98614782+auto-submit[bot]@users.noreply.github.com Reverts "[iOS] Migrate VSyncClient to a pure Obj-C implementation (#186166)" (flutter/flutter#186266)
2026-05-08 [email protected] Roll Skia from a00db8749edb to 31521f8508c7 (2 revisions) (flutter/flutter#186264)
2026-05-08 [email protected] Optimize compatible `DrawDiffRoundRect` calls to use `DrawRoundRect` (flutter/flutter#186203)
2026-05-08 [email protected] [triage] Add Flutter GPU as a triage team (flutter/flutter#186263)
2026-05-08 [email protected] doc: Unified Check-Run User manual (flutter/flutter#186210)
2026-05-08 [email protected] Roll Skia from 5f7adf4403d6 to a00db8749edb (1 revision) (flutter/flutter#186257)
2026-05-08 [email protected] Roll Packages from 0411f1d to 92552b1 (1 revision) (flutter/flutter#186256)
2026-05-08 [email protected] Add logging to figure out jvm crashes for `hot_mode_tests` (flutter/flutter#186107)
2026-05-08 [email protected] Roll Skia from 926c09741ce2 to 5f7adf4403d6 (3 revisions) (flutter/flutter#186242)
...
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