| author | Matti Laitinen <matti.t.laitinen@nokia.com> |
| Thu, 11 Feb 2010 15:06:45 +0200 | |
| changeset 0 | 5ad7ad99af01 |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
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<title>How to analyse a crash</title> |
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<link href="../../book.css" type="text/css" rel="stylesheet"> |
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</head> |
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<body> |
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<h2>How to analyse a crash</h2> |
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<p>Analysing a crash is started by importing a file to the Crash Analyser main view. By double-clicking the imported file, the Crash Visualiser opens.</p> |
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<p></p> |
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<img src="images\CrashVisualiser.PNG"> |
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Matti Laitinen <matti.t.laitinen@nokia.com>
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<p></p> |
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Matti Laitinen <matti.t.laitinen@nokia.com>
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<p>The Crash Visualiser contains four different tabs:</p> |
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<ul> |
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<li><b>1) Crash Data</b> |
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<ul> |
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<li>Summary<p>The Summary pane shows general issues about a crash, for example: <b>1)</b> In which process and in which thread a crash occurred, <b>2)</b> When a crash occurred, <b>3)</b> Information on which device was used when the crash occurred, <b>4)</b> Etc.</p></li><li>Exit Info<p> The Exit Info pane gives the reason why a crash occurred. The reason might be for example a Symbian OS panic or exception. If the panic or error description can be found in the Crash Analyser error library, then the description is displayed.</p></li> |
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<li>Call Stack<p>The <b>Call Stack</b> pane shows the reconstructed call stack from the time of the panic/exception. The call stack appears in a similar layout as you might expect to see with a typical Symbian OS debugger (for example Carbide.c++). The most recently executing function appears near the top of the stack, and the oldest or initial functions appear at the bottom.</p> |
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<p>By right-clicking on the <b>Call Stack</b> pane, you get four selections:</p> |
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<table width="667" border="1" cellspacing="1" cellpadding="2"> |
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<colgroup> |
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<col width="50*"> |
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<col width="141*"></colgroup> |
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<thead> |
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<tr> |
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<td><b>Function</b></td> |
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<td><b>Description</b></td> |
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Matti Laitinen <matti.t.laitinen@nokia.com>
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</tr> |
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<tr> |
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<td><b>Open Source File</b></td> |
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<td>Opens the source file this symbol points to. This is possible only if the source file is in use in your computer.</td> |
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Matti Laitinen <matti.t.laitinen@nokia.com>
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</tr> |
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</thead> |
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<tbody> |
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<tr> |
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<td><b>Active SDK</b></td> |
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<td>Used for selecting the active SDK which is used in the Open Source File function.</td> |
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</tr> |
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<tr> |
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<td><b>Copy Selection to Clipboard</b></td> |
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<td> Selected/highlighted rows are copied to clipboard. |
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<ul> |
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<li>As plain text: Can be pasted for example to Notepad.</li> |
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<li>As rich text: Can be pasted for example to MS Word.</li> |
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</ul> |
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</td> |
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</tr> |
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<tr> |
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<td><b>Copy Whole Stack to Clipboard</b></td> |
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<td>All rows are copied to clipboard. |
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<ul> |
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<li>As plain text: Can be pasted for example to Notepad.</li> |
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<li>As rich text: Can be pasted for example to MS Word.</li> |
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</ul> |
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</td> |
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</tr> |
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</tbody> |
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</table> |
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<p>For more detailed information on call stack and analysing call stacks, see <a href="../reference/call_stack.htm">Call stack.</a></p></li> |
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</ul></li> |
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<li><b>2) Advanced</b> |
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<ul> |
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<li>Registers<p>The Registers pane shows the register values at the time of the crash.</p> |
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<p>For more detailed information on registers, see <a href="../reference/registers.htm">Registers.</a></p></li> |
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<li>Code Segments<p>The code segment list contains a list of binaries (dlls/plugins/exe) that were loaded at the time of the crash.</p><p>For more detailed information on code segments, see <a href="../reference/code_segments.htm">Code segments.</a></p></li> |
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<li>Event Log<p>The Event Log pane shows 30 last events that occurred in the device before the crash. Only the window and key events are captured.</p></li> |
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<li>CPSR details<p>The ARM processor stores the processor state in "status registers." The current state of the processor is stored within the Current Program Status Register (CPSR). This register contains bits that can be queried to identify certain attributes of the processor at the current point in time. For example, you can check CPSR to identify if the processor is executing code in User, Supervisor or one of the other ARM processor modes. This can give a useful indication of whether a panic/exception occurred whilst executing user or kernel code. Additionally, another bit within CPSR can indicate what kind of instruction was executing at the time of the problem, that is, was the processor in THUMB or ARM mode. Refer to the ARM architecture manual for your processor for full details. Note that Crash Analyser is unable to discern the type of processor that the device utilizes. Therefore, Crash Analyser prevents several different interpretations of this register, and the appropriate interpretation for the device's hardware architecture must be selected manually.</p></li> |
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</ul></li> |
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<li><b>3) Errors & Warnings</b><p>Shows all possible errors and warnings occurring during the decoding process.</p> |
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<p><b>Note!</b> If no errors or warnings have occurred, then this tab is not shown.</p></li> |
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<li><b>4) XML</b><p>Shows the raw data which other tabs are visualising in more readable format. The other tabs do not show all information what the raw data contains, so if some information is missing from a tab, you can try to find it from the XML tab.</p></li> |
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</ul> |
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<div id="footer">Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
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License: <a href="http://www.eclipse.org/legal/epl-v10.html">http://www.eclipse.org/legal/epl-v10.html</a>.</div> |
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</body> |
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</html> |