Bug 145796 – Animating SVG (D3js) cause Safari hang up

• Component: Animations
• Status: RESOLVED INVALID

Created attachment 254559 [details]
Sample of the process

It is hard to reproduce. On my local machine i could reproduce it very rare. On our in house server, it occurs much more often, but still I have not found a way to clearly reproduce the error (still after 4 days of investigation).

The problem occurs, when multiple svg arcs are animated in its size (d3js transition arctween). After triggering this animation randomly (various mouse clicks) the animation gets stuck and safari hangs up.
I recorded a sample of the web content process and from the console and recognized a hanging loop in the glDrawArrays of the GLEngine.

I attached both stacktraces as it is the only hint i have found on this issue. Here is an excerpt, which i think is the critical part:

    +                             878 CA::OGL::GLContext::draw_lines(unsigned int, unsigned int, CA::OGL::LineVertex const*)  (in QuartzCore) + 110  [0x7fff91bbfa6a]
    +                             : 667 glDrawArrays_IMM_Exec  (in GLEngine) + 856  [0x7fff92cdb72d]
    +                             : | 112 ???  (in <unknown binary>)  [0x111c3d731]
    +                             : | 61 ???  (in <unknown binary>)  [0x111c3d734]
    +                             : | 59 ???  (in <unknown binary>)  [0x111c3d726]
    +                             : | 56 ???  (in <unknown binary>)  [0x111c3d73e]
    +                             : | 52 ???  (in <unknown binary>)  [0x111c3d741]
    +                             : | 48 ???  (in <unknown binary>)  [0x111c3d759]
    +                             : | 46 ???  (in <unknown binary>)  [0x111c3d72d]
    +                             : | 45 ???  (in <unknown binary>)  [0x111c3d753]
    +                             : | 37 ???  (in <unknown binary>)  [0x111c3d73b]
    +                             : | 37 ???  (in <unknown binary>)  [0x111c3d74c]
    +                             : | 35 ???  (in <unknown binary>)  [0x111c3d74f]
    +                             : | 32 ???  (in <unknown binary>)  [0x111c3d756]
    +                             : | 28 ???  (in <unknown binary>)  [0x111c3d745]
    +                             : | 19 ???  (in <unknown binary>)  [0x111c3d75c]
    +                             : 93 glDrawArrays_IMM_Exec  (in GLEngine) + 763  [0x7fff92cdb6d0]
    +                             : | 92 gleFlushPrimitiveTCLFunc  (in GLEngine) + 752  [0x7fff92d471a6]

Created attachment 254560 [details]
Log file from console

[Jon Lee]

We're going to need a sample project or a URL that can reproduce this problem to make this actionable. If you still experience the problem and can give us a sample, feel free to reopen.

Marking as Invalid since we don't have a "Insufficient Info" sub-status available.