[Webkit-unassigned] [Bug 173625] Web Inspector: Should be able to pause and debug a StackOverflow Exception

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Jun 20 17:30:07 PDT 2017


https://bugs.webkit.org/show_bug.cgi?id=173625

--- Comment #1 from Joseph Pecoraro <joepeck at webkit.org> ---
Steps:

• Improve the performance of pausing with large callstacks
  - Profile to see where time is spent and address it
  - We can lazily gather scope information instead of sending it all up front
  - We can paginate the # of call frames. We don't need to send 1000 up front

• When Inspector Debugging is enabled Swizzle the VM's stackLimit with one that has space for debugging frames (say 10kb)
  - When hitting stack overflow + pausing replace the stackLimit with the original
  - User should be able to evaluate + debug things to a reasonable degree
  - When continuing go back to the swizzled stackLimit
  - When inspector debugger detaches go back to the original stackLimit

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