1229565 - I triggered APZCCallbackHelper.cpp's "MOZ_ASSERT(false); // If you hit this, please file a bug with STR."

Status: RESOLVED INCOMPLETE

(Core :: Panning and Zooming, defect)

Description

[Daniel Holbert [:dholbert]]

My STR (trying to be as precise as possible; likely much of this is unnecessary):
 0. Running Ubuntu 15.10 64-bit, on a Dell Precision T1600, with gnome-shell.
 1. Using a tree at mozilla-central changeset a18630f9ab42
 2. Build with attached mozconfig, using clang 3.7
 3. Run the resulting build under valgrind (ver 3.11.0) like so:

  valgrind -q --track-origins=yes --error-limit=no \
    ./dist/bin/firefox -profile deleteme/ -no-remote

 4. Wait a few minutes.

ACTUAL RESULTS:Assertion failure: false, at gfx/layers/apz/util/APZCCallbackHelper.cpp:642

Comment 1

[Daniel Holbert [:dholbert]]

Attachment: my mozconfig

Comment 2

[Daniel Holbert [:dholbert]]

Attachment: backtrace of assertion failure

Comment 3

[Daniel Holbert [:dholbert]]

Unfortunately, I only reproduced this once, and my attempts to trigger it again (using my STR from comment 0) are failing. :-/

Comment 4

[u279076]

Daniel, any luck trying to reproduce this? If not we should probably just close this as incomplete and reopen if it happens again.

Comment 5

[u279076]

Closing as incomplete. Please reopen if this bug becomes reproducible.