Viewers
The current main viewer is version 3.7.5-288464. This is the Google Breakpad RC Viewer promoted to the main release viewer. If you dig around in the log files section you’ll find more ‘marker files’ and more logged information. The Lindens have moved the start of logging, no easy task, further toward the beginning of viewer start up and the end of shutdown.
Marker files are uniquely named and often have no data inside or very little. The purpose of the files is to basically leave breadcrumb trail for the error reporting process to follow. They are written because if the viewer crashes it often won’t be able to log an error. So, at certain points a ‘marker file’ is written so the next time the crash reporter runs, which is before viewer actually starts, it can check to see what the viewer did in its last run and report when it crashed. The marker file gives some idea of how far the viewer got in its process before crashing.

