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ui_thread crashes in --debug mode on Pixel #6693
Description
Steps to Reproduce
Using Pixel phone
flutter create myapp
cd myapp
flutter run
Logs
Run your application with flutter run and attach all the log output.
Installing build/app.apk... 3860ms
Timed out while waiting for a debug connection.
Error launching DevFS loader on Pixel.
wall time: flutter run completed in 28 seconds
logcat:
11-03 12:43:52.280 1192 11167 I ActivityManager: START u0 {act=android.intent.action.RUN dat=/data/local/tmp/dev.flx flg=0x30000000 cmp=com.yourcompany.myapp/org.
domokit.sky.shell.SkyActivity (has extras)} from uid 2000 on display 0
11-03 12:43:52.289 1192 11167 D QCOM PowerHAL: LAUNCH HINT: ON
11-03 12:43:52.297 1192 11167 I QCOM PowerHAL: Activity launch hint handled
11-03 12:43:52.309 1192 11167 I ActivityManager: Start proc 7980:com.yourcompany.myapp/u0a216 for activity com.yourcompany.myapp/org.domokit.sky.shell.SkyActivity
11-03 12:43:52.311 7969 7969 D AndroidRuntime: Shutting down VM
11-03 12:43:52.327 7980 7980 I art : Late-enabling -Xcheck:jni
11-03 12:43:52.345 7980 7987 E art : Failed writing handshake bytes (-1 of 14): Broken pipe
11-03 12:43:52.345 7980 7987 I art : Debugger is no longer active
11-03 12:43:52.345 7980 7987 I art : Starting a blocking GC Instrumentation
11-03 12:43:52.346 1192 4864 I WindowManager: Failed to capture screenshot of Token{57adb49 ActivityRecord{2fd2d50 u0 com.google.android.apps.inbox/com.google.an
droid.apps.bigtop.activities.MainActivity t2860}} appWin=Window{552145f u0 com.google.android.apps.inbox/com.google.android.apps.bigtop.activities.MainActivity} dr
awState=4
11-03 12:43:52.386 7980 7980 I cr.library_loader: Time to load native libraries: 7 ms (timestamps 9718-9725)
11-03 12:43:52.386 7980 7980 I cr.library_loader: Expected native library version number "", actual native library version number ""
11-03 12:43:52.466 7980 7980 E ApkAssets: Error while loading asset assets/icudtl.dat: java.io.FileNotFoundException: This file can not be opened as a file descr
iptor; it is probably compressed
11-03 12:43:52.470 7980 7980 I Adreno : QUALCOMM build : a5b4970, If5818605d9
11-03 12:43:52.470 7980 7980 I Adreno : Build Date : 10/12/16
11-03 12:43:52.470 7980 7980 I Adreno : OpenGL ES Shader Compiler Version: XE031.09.00.04
11-03 12:43:52.470 7980 7980 I Adreno : Local Branch : N24D
11-03 12:43:52.470 7980 7980 I Adreno : Remote Branch :
11-03 12:43:52.470 7980 7980 I Adreno : Remote Branch :
11-03 12:43:52.470 7980 7980 I Adreno : Reconstruct Branch :
11-03 12:43:52.533 7980 8004 I OpenGLRenderer: Initialized EGL, version 1.4
11-03 12:43:52.533 7980 8004 D OpenGLRenderer: Swap behavior 1
11-03 12:43:52.582 2695 5899 I Icing : Indexing 6BE5355CF8E17C178F29EC639D363295AAC56949 from com.google.android.googlequicksearchbox
11-03 12:43:52.630 7980 8002 F libc : Fatal signal 4 (SIGILL), code 1, fault addr 0xca1586e4 in tid 8002 (ui_thread)
11-03 12:43:52.631 557 557 W : debuggerd: handling request: pid=7980 uid=10216 gid=10216 tid=8002
11-03 12:43:52.706 8008 8008 E : debuggerd: process stopped due to unexpected signal 27
11-03 12:43:52.708 1192 8009 W ActivityManager: Force finishing activity com.yourcompany.myapp/org.domokit.sky.shell.SkyActivity
Run flutter analyze and attach any output of that command also.
Analyzing lib/main.dart...
No analyzer warnings! (ran in 10.8s)
Flutter Doctor
Paste the output of running flutter doctor here.
[✓] Flutter (on Linux, channel master)
• Flutter at /mnt/ext/adlr/flutter/flutter
• Framework revision 594c4f9 (6 hours ago), 2016-11-03 15:19:57
• Engine revision 16077d4
• Tools Dart version 1.21.0-dev.3.0
[✓] Android toolchain - develop for Android devices (Android SDK 23.0.1)
• Android SDK at /usr/local/google/home/adlr/Android/Sdk
• Platform android-23, build-tools 23.0.1
• OpenJDK Runtime Environment (build 1.8.0-google-v7-132676107-132666263)
[x] Flutter IDE Support (No supported IDEs installed)
• IntelliJ - https://www.jetbrains.com/idea/
[✓] Connected devices
• Pixel • FA6890301609 • android-arm • Android 7.1.1 (API 25)
Activity
eseidelGoogle commentedon Nov 3, 2016
The ui_thread crashing would suggest it's Dart or c++ engine code crashing, not Skia or GPU bindings I think. This may or may not be specfic to pixel.
Ideally we'd be able to get a Tombstone file showing the full crash. They're located at
/data/tombstones/tombstone_01, etc. if written, but it doesn't look from the logs like this crash wrote one for whatever reason.eseidelGoogle commentedon Nov 4, 2016
Working on getting our hands on a Pixel to debug. We have a couple still in the mail. #6492 is likely not the same issue, but also seems to be pixel-specific and might end up related.
adlr commentedon Nov 4, 2016
Cool. Also, doing the release build did work, fwiw.
eseidelGoogle commentedon Nov 4, 2016
Oh, odd. So this is a debug-only, pixel-only crash. --release uses Dart's AOT (Ahead of Time) compilation mode instead of JIT (which i used for --debug). I wonder if the Dart JIT crashes on a Pixel. Will have to see when we have one in our hands. Thanks again for the report!
This actually probably is the same as #6492 , but I think I'm going to dupe to this one since it has more info.
[-]Unable to run default flutter app[/-][+]ui_thread crashes in --debug mode on Pixel[/+]eseidelGoogle commentedon Nov 4, 2016
FYI @a-siva.
AOT Android: Don't use integer division instructions. (#6714)
Default locales test for flutter tester. Roll engine 162b2e9..7be0217 (…
Default locales test for flutter tester. Roll engine 162b2e9..7be0217 (…
github-actions commentedon Sep 5, 2021
This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of
flutter doctor -vand a minimal reproduction of the issue.