I was trying to use out/droid/bin/run_tracing_perftests (tracing_perftests is irrelevent here IMHO) and it failed with the error below

The error is very misleading (no devices attached) and I think this is just the wrapper script not being able to detect the real error, which is this:

01-13 21:48:55.098 20179 20179 E chromium: Failed to redirect stream to file: /sdcard/temp_file-95a99f7a9efde.gtest_out: Permission denied

In fact you see in the stacktrace below that ReadFileWithPull failed (before falsely blaming the device).


The device is rooted and I did setenforce 0 (disable selinux), but didn't help.
The device is a N5 @ google/hammerhead/hammerhead:6.0/MRA59G/2457013:userdebug/dev-keys

Error:
$ out/offdroid/bin/run_tracing_perftests  -v --adb-path $(which adb)
I    0.000s Main  command: /s/chrome/src/build/android/test_runner.py gtest --suite tracing_perftests --output-directory /s/chrome/src/out/offdroid --runtime-deps-path /s/chrome/src/out/offdroid/gen.runtime/components/tracing/tracing_perftests__test_runner_script.runtime_deps -v --adb-path /usr/local/google/home/primiano/tools/android-sdk/platform-tools//adb
I    0.007s Main  [host]> /s/chrome/src/third_party/android_tools/sdk/build-tools/25.0.2/aapt dump xmltree /s/chrome/src/out/offdroid/tracing_perftests_apk/tracing_perftests-debug.apk AndroidManifest.xml
I    0.027s TimeoutThread-1-for-MainThread  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb devices
I    0.059s TimeoutThread-1-for-prepare_device(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede wait-for-device
I    0.092s TimeoutThread-1-for-prepare_device(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell '( ( c=/data/local/tmp/cache_token;echo $EXTERNAL_STORAGE;cat $c 2>/dev/null||echo;echo "037981ea-5010-11e7-8342-a0481c90234a">$c &&getprop )>/data/local/tmp/temp_file-3dbe8ec4af12d );echo %$?'
I    0.146s TimeoutThread-1-for-prepare_device(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede pull /data/local/tmp/temp_file-3dbe8ec4af12d /tmp/tmpoI_YvU/tmp_ReadFileWithPull
I    0.204s TimeoutThread-1-for-prepare_device(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell '( test -d /sdcard );echo %$?'
I    0.204s TimeoutThread-1-for-delete_temporary_file(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell 'rm -f /data/local/tmp/temp_file-3dbe8ec4af12d'
I    0.239s TimeoutThread-1-for-prepare_device(02fb28b221082ede)  condition 'sd_card_ready' met (0.2s)
I    0.239s TimeoutThread-1-for-prepare_device(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell '( pm path android );echo %$?'
I    1.423s TimeoutThread-1-for-prepare_device(02fb28b221082ede)  condition 'pm_ready' met (1.4s)
I    1.423s TimeoutThread-1-for-prepare_device(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell '( getprop sys.boot_completed );echo %$?'
I    1.472s TimeoutThread-1-for-prepare_device(02fb28b221082ede)  condition 'boot_completed' met (1.4s)
I    1.495s TimeoutThread-1-for-individual_device_set_up(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell '( pm path org.chromium.native_test );echo %$?'
I    2.622s calculate_device_checksums  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell '( a=/data/local/tmp/md5sum/md5sum_bin;! [[ $(ls -l $a) = *251512* ]]&&exit 2;export LD_LIBRARY_PATH=/data/local/tmp/md5sum;$a /data/app/org.chromium.native_test-1/base.apk;: );echo %$?'
I    2.623s calculate_host_checksums  [host]> /s/chrome/src/out/offdroid/md5sum_bin_host /s/chrome/src/out/offdroid/tracing_perftests_apk/tracing_perftests-debug.apk
I    2.754s TimeoutThread-1-for-individual_device_set_up(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell '( ps | grep -F org.chromium.native_test; echo "PIPESTATUS: ${PIPESTATUS[@]}" );echo %$?'
I    2.863s calculate_device_checksums  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell '( a=/data/local/tmp/md5sum/md5sum_bin;! [[ $(ls -l $a) = *251512* ]]&&exit 2;export LD_LIBRARY_PATH=/data/local/tmp/md5sum;$a /sdcard/chromium_tests_root/icudtl.dat;: );echo %$?'
I    2.863s calculate_host_checksums  [host]> /s/chrome/src/out/offdroid/md5sum_bin_host /s/chrome/src/out/offdroid/icudtl.dat
I    3.100s TimeoutThread-1-for-list_tests(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell '( ( p=org.chromium.native_test;am instrument -w -e "$p".NativeTestInstrumentationTestRunner.ShardNanoTimeout 30000000000 -e "$p".NativeTestInstrumentationTestRunner.NativeTestActivity "$p".NativeUnitTestActivity -e "$p".NativeTestInstrumentationTestRunner.StdoutFile /sdcard/temp_file-1aa3800ad3622.gtest_out -e "$p".NativeTest.CommandLineFlags --gtest_list_tests "$p"/"$p".NativeTestInstrumentationTestRunner )>/data/local/tmp/temp_file-f430921fe1c96 );echo %$?'
I    5.753s TimeoutThread-1-for-list_tests(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede pull /data/local/tmp/temp_file-f430921fe1c96 /tmp/tmp4ialQD/tmp_ReadFileWithPull
I    5.811s TimeoutThread-1-for-delete_temporary_file(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell 'rm -f /data/local/tmp/temp_file-f430921fe1c96'
I    5.815s TimeoutThread-1-for-list_tests(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell '( TZ=utc ls -a -l /sdcard/ );echo %$?'
E    5.883s list_tests(02fb28b221082ede)  Shard failed: list_tests(02fb28b221082ede)
Traceback (most recent call last):
  File "/s/chrome/src/build/android/pylib/local/device/local_device_environment.py", line 59, in wrapper
    return f(dev, *args, **kwargs)
  File "/s/chrome/src/build/android/pylib/local/device/local_device_gtest_run.py", line 364, in list_tests
    None, dev, flags='--gtest_list_tests', timeout=30)
  File "/s/chrome/src/build/android/pylib/local/device/local_device_gtest_run.py", line 183, in Run
    stdout_file.name, device.StatPath(stdout_file.name).get('st_size', 0))
  File "/s/chrome/src/third_party/catapult/devil/devil/android/device_utils.py", line 1839, in StatPath
    'Cannot find file or directory: %r' % device_path, str(self))
CommandFailedError: (device: 02fb28b221082ede) Cannot find file or directory: '/sdcard/temp_file-1aa3800ad3622.gtest_out'
I    5.883s TimeoutThread-1-for-delete_temporary_file(02fb28b221082ede)  [host]> /usr/local/google/home/primiano/tools/android-sdk/platform-tools/adb -s 02fb28b221082ede shell 'rm -f /sdcard/temp_file-1aa3800ad3622.gtest_out'
E    5.906s Main  Error occurred.
Traceback (most recent call last):
  File "/s/chrome/src/build/android/test_runner.py", line 926, in main
    return RunTestsCommand(args)
  File "/s/chrome/src/build/android/test_runner.py", line 684, in RunTestsCommand
    return RunTestsInPlatformMode(args)
  File "/s/chrome/src/build/android/test_runner.py", line 845, in RunTestsInPlatformMode
    str(iteration_count))
  File "/s/chrome/src/build/android/pylib/base/environment.py", line 33, in __exit__
    self.TearDown()
  File "/s/chrome/src/build/android/pylib/local/device/local_device_environment.py", line 234, in TearDown
    self.parallel_devices.pMap(tear_down_device)
  File "/s/chrome/src/build/android/pylib/local/device/local_device_environment.py", line 197, in parallel_devices
    return parallelizer.SyncParallelizer(self.devices)
  File "/s/chrome/src/build/android/pylib/local/device/local_device_environment.py", line 188, in devices
    raise device_errors.NoDevicesError()
NoDevicesError: No devices attached.