The "Application Crashes" panel

    When you click on the "Application Crashes" tab, a panel appears with controls for customizing Rebound!'s application crash detection. This panel is divided into three sections. The first lets you enable application crash detection, the second lets you configure crash recovery, and the third shows you the current system status.

Application Crash Detection

    The first section contains two check boxes, allowing you to separately enable both forms of application crash detection.

    Monitor for crashes in any application
    If this box is checked, Rebound! will monitor all running applications for crashes. This will detect any time an application disappears, causing an "application has unexpectedly quit" error message to appear.

    Monitor timers in supported applications
    If this box is checked, Rebound! will monitor applications which include Rebound! support. This will let Rebound! respond to failures which don't necessarily cause the application to completely crash.

    Note: In order for Rebound! to monitor an application's timer, the application must have support built in. Many popular server applications already include Rebound! support, and more are added regularly. A current list can be found at our web site, http;//www.sophisticated.com/.

When An Application Fails

    The second section of the "Application Crashes" panel contains a pair of radio buttons that lets you choose how Rebound! will attempt to recover from crashes.

    Restart system immediately
    If this button is selected, Rebound! will restart the computer when an application crashes.

    Rebound! will first attempt to initiate a Finder restart, and the Finder will attempt to quit all open applications. If an application fails to quit, the Rebound! hardware will then perform a hard restart, after a delay specified by the "Restart if system doesn't respond" slider in the "System Crashes" panel.

    Attempt to relaunch application
    If this button is selected, Rebound! will first attempt to relaunch the application which crashed, before it resorts to restarting the system.

    Application crashes can potentially leave the system in an unstable state. If the application keeps crashing after being relaunched, it probably means that something else is wrong with the system. In this situation, Rebound! can "fall back" and restart the entire system. You can configure when Rebound! will resort to restarting the system by typing values into the two fields below this radio button.

    The first value is the number of crashes that will cause Rebound! to restart the system. (A value of 1 here is equivalent to selecting the "Restart system immediately" button.)

    The second value (and associated pop-up menu) is the interval in which these repeated crashes must occur. If an application crashes once every few days, Rebound! will simply relaunch it, but if it crashes repeatedly over a short time, Rebound! will restart the system.

Application Status

    The third section of the "Application Crashes" panel contains a list of all currently running applications, and their status.

    This list shows all running applications, including "invisible" applications that are part of Mac OS, in the order they were launched.

    The second column shows the current value of the timer for each application which supports Rebound!'s application timers. This timer counts down each second until the next time it is updated by the application.

    The third column shows the number of times each application has been relaunched recently (i.e. within the relaunching interval described above). This alerts you to applications which may be crashing frequently.

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