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Memory Dump Analysis Anthology, Volume 7 by Dmitry Vostokov

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User Interface Problem Analysis Patterns

Unresponsive Window

The previous pattern from this problem pattern category was Error Message Box (Volume 6, page 259). Here we discuss another pattern related to unresponsive GUI. We all see hang windows from time to time. This can happen, for example, from a main thread (Volume 1, page 437) blocked in a wait chain (Volume 6, page 55). Some windows become unresponsive only temporary, for example, when a window message loop results in a CPU intensive window procedure code path. When we open large WinDbg logs generated by WinDbg scripts running against a complete memory dump in Notepad it opens up a frozen window for some seconds and sometimes for a minute or two. To get an unresponsive window for a ...

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