How to debug crashing Chrome browser extensions?

I developed a Chrome browser extension that crashes (eg, a bubble appears in the upper-right stating "_____ has crashed! Click here to reload it.")

When it crashes, background.html disappears (dies) immediately, and I cannot find any information to debug. I've opened chrome://crashes and see that there are entries there which might correspond to my issue, but the crash log only gives me a link to file a bug report (no ability to download or view the log).

Based upon this Google entry on finding crash logs I've found some .dmp files, but they are essentially unreadable (the .dmp files seem to be some sort of un-symbolicated stack trace, or something of that nature).

EDIT: I determined that chrome://crashes do not relate to my extension crashes. I just had a crash, yet the latest timestamp in chrome://crashes is from hours ago.

I had a similar issue and was able to figure out the root of the issue by starting chrome with verbose logging enabled. To start Google Chrome on Mac with verbose logging you'll need to open a terminal and run something similar to the following:

/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --enable-logging --v=1&

Then watch the debug log file by tailing the log file.

tail -f ~/Library/Application\ Support/Google/Chrome/chrome_debug.log

On Ubuntu try:

tail -f ~/.config/google-chrome/chrome_debug.log

It's chatty but helpful.