kbr@ wrote in  issue 858922 :

"""
Here's the code in Telemetry that gets a stack trace from a minidump:
https://cs.chromium.org/chromium/src/third_party/catapult/telemetry/telemetry/internal/backends/chrome/desktop_browser_backend.py?type=cs&q=_GetStackFromMinidump&sq=package:chromium&g=0&l=420

The code which can enumerate all unsymbolized minidumps:
https://cs.chromium.org/chromium/src/third_party/catapult/telemetry/telemetry/internal/backends/chrome/desktop_browser_backend.py?type=cs&q=GetAllUnsymbolizedMinidumpPaths&sq=package:chromium&g=0&l=514

and the code which automatically appends the symbolized minidump to the AppCrashException which is propagated through Telemetry if something goes wrong with the browser:
https://cs.chromium.org/chromium/src/third_party/catapult/telemetry/telemetry/core/exceptions.py?type=cs&q=_minidump_path&sq=package:chromium&g=0&l=74

Hopefully some of this scaffolding could be integrated into WebDriver. There are still issues like if both the GPU and a renderer process crash we don't see both minidumps, but this would at least be a start if it were integrated into WebDriver.
"""

If we pull at least a stack trace out of a minidump, then it could help with issues like  issue 864205  as well.