Debug It!

Put It in Action

• When patching an existing release, concentrate on reducing risk.

• Keep on the lookout for compatibility implications when fixing bugs.

• Ensure that you have completely closed any timing windows, not just decreased their size.

• When faced with a heisenbug, minimize the side effects of collecting information.

• Fixing performance bugs always starts with an accurate profile.

• Even the most restricted communication channel can be enough to extract the information you need.

• Suspect your own, ahead of third-party, code.

Footnotes

[24]	Apart, perhaps, from crackers exploiting flaws in your software to achieve their nefarious goals.
[25]	Shelves that were above my desk and that almost killed me one day when the shelf supports ...