In the above 20362 is the android container process id.

There is also a chrome browser crash around this time, which could terminate the android container.

Looking at /var/log/android.kmsg, the container indeed terminates due to a Chrome crash in the ARC launcher:


 0  chrome!aura::Window::HasObserver [observer_list.h : 188 + 0x0]
 1  chrome!aura::WindowObserver::OnUnobservingWindow [window_observer.cc : 25 + 0x8]
 2  chrome!aura::Window::RemoveObserver [window.cc : 489 + 0x8]
 3  chrome!AppWindowLauncherItemController::~AppWindowLauncherItemController [scoped_observer.h : 45 + 0x5]
 4  chrome!ArcAppWindowLauncherItemController::~ArcAppWindowLauncherItemController [arc_app_window_launcher_item_controller.cc : 25 + 0x13]
 5  chrome!ash::ShelfModel::RemoveShelfItemDelegate [unique_ptr.h : 76 + 0x6]
 6  chrome!ash::ShelfModel::RemoveItemAt [shelf_model.cc : 78 + 0xb]
 7  chrome!ChromeLauncherControllerImpl::CloseLauncherItem [chrome_launcher_controller_impl.cc : 363 + 0xa]
 8  chrome!ArcAppWindowLauncherController::UnregisterApp [arc_app_window_launcher_controller.cc : 603 + 0x3]
 9  chrome!ArcAppWindowLauncherController::OnTaskDestroyed [arc_app_window_launcher_controller.cc : 451 + 0xc]
10  chrome!ArcAppListPrefs::OnTaskDestroyed [arc_app_list_prefs.cc : 890 + 0xc]
11  chrome!arc::mojom::AppHostStub::Accept [app.mojom.cc : 4981 + 0x3]

Deleted: trace.txt 154 KB

trace.txt 154 KB View Download

+skuhne

Recent changes in this area:

ARC: Show window title in launcher menu instead of app title
https://codereview.chromium.org/2243573002/

arc: Fix crash on Arc window close
https://codereview.chromium.org/2251493002/

The latter CL is included in the crashing chrome build, chrome 54.0.2831.0:
https://chromium.googlesource.com/chromium/src/+log/54.0.2830.0..54.0.2831.0?pretty=fuller&n=10000

Seen on both veyron_minnie and cyan.

I can repro the crash with ToT chrome (54.0.2832.0 at revision 412659) by running in the chroot:

test_that -b veyron_minnie 172.18.37.37 cheets_Notification

The notification test app runs, some text fields are changed, then the window starts to close and the browser crashes while the window is partially transparent.

(Interestingly I see no notifications appear on the screen, even when I used an earlier build of chrome where the test passed.)

More likely one more race condition on close. Have fix locally, testing now

CL: https://codereview.chromium.org/2256273003

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/800987eb69027f6f34dff840b19c68a83065c6ae

commit 800987eb69027f6f34dff840b19c68a83065c6ae
Author: khmel <khmel@chromium.org>
Date: Thu Aug 18 21:46:35 2016

arc: Fix crash on window close (on close race condition).

This handles race condition on window closing.

TEST=Extended browser_tests
TEST=Manually on device
TEST=test_that -b veyron_minnie <IP> cheets_Notification
BUG= 638656 
BUG= 638261 

Review-Url: https://codereview.chromium.org/2256273003
Cr-Commit-Position: refs/heads/master@{#412940}

[modify] https://crrev.com/800987eb69027f6f34dff840b19c68a83065c6ae/chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.cc
[modify] https://crrev.com/800987eb69027f6f34dff840b19c68a83065c6ae/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl_unittest.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/fab778fe0ba6112332cdac7ff982364e8bba63ed

commit fab778fe0ba6112332cdac7ff982364e8bba63ed
Author: khmel <khmel@chromium.org>
Date: Fri Aug 19 22:58:22 2016

arc: Fix crash on window close (on close race condition).

This handles race condition on window closing.

TEST=Extended browser_tests
TEST=Manually on device
TEST=test_that -b veyron_minnie <IP> cheets_Notification
BUG= 638656 
BUG= 638261 

TBR=reviewer@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2256273003
Cr-Commit-Position: refs/heads/master@{#412940}
(cherry picked from commit 800987eb69027f6f34dff840b19c68a83065c6ae)

Review-Url: https://codereview.chromium.org/2259403002
Cr-Commit-Position: refs/branch-heads/2785@{#689}
Cr-Branched-From: 68623971be0cfc492a2cb0427d7f478e7b214c24-refs/heads/master@{#403382}

[modify] https://crrev.com/fab778fe0ba6112332cdac7ff982364e8bba63ed/chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.cc
[modify] https://crrev.com/fab778fe0ba6112332cdac7ff982364e8bba63ed/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl_unittest.cc

 Issue 638657  has been merged into this issue.

Chrome OS 54.0.2840.15/8743.23.0