Gdb Warning Restore Memory Write Failed Input/output Error
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Gdb Break Cannot Access Memory At Address
MI command(Eclipse and GDT/MI woes) Show: Today's Messages :: Show Polls :: Message Navigator Failed to execute MI command [message #683459] Mon, 13 June 2011 19:47 Tom RoweMessages: 2Registered: June 2011 Junior
Gdb Cannot Insert Breakpoint 0
Member I'm running Helios SR2 on RHEL6 32b with CDT 7.02, GDB common 7.0, IBM J9 VM 1.5.0. I'm trying to debug a C++ module across JNI from a JUnit. 1. I launch my "JUnit" debug config and successfully breakpoint immediately after my System.loadLibrary(mysharedlib). 2. I then launch my "C/C++ Attach to Application" debug config, which is defined as: - Application=Debug/libmysharedlib.so - Build config=debug - Debugger=gdb - error in re-setting breakpoint 1: cannot access memory at address Non-stop mode=off (although this setting makes no difference) This Attach to Application launches, I then attach it to javaw properly, and I see 13 suspended threads. 3. I then attempt to resume C++ thread #1 (state=suspended: user request) to no avail. - Entering "info break" from the gdb console correctly shows my breakpoint in the C++ code. Further, I can successfully display code in my C++ module, so I know I have debug info present. - Entering "c" from the gdb console gives: Warning: Cannot insert breakpoint 1. Error accessing memory address 0x2da6: Input/output error. 4. When I then attempt to resume the JUnit thread, I get the expected "org.eclipse.jdi.TimeoutException: Timeout occurred while waiting for packet 622. occurred resuming thread." as it appears all C++ threads are still suspended. The workspace/.metadata/.log yields messages like: !ENTRY org.eclipse.cdt.dsf 4 10005 2011-06-13 12:06:55.727 !MESSAGE Request for monitor: 'RequestMonitor (org.eclipse.cdt.dsf.concurrent.RequestMonitor@68446844): Status ERROR: org.eclipse.cdt.dsf.gdb code=10004 Failed to execute MI command: -exec-continue Error message from debugger back end: Warning: Cannot insert breakpoint 1. Error accessing memory address 0x2da6: Input/output error. java.lang.Exception: Warning: Cannot insert breakpoint 1. Error accessing memory address 0x2da6: Input/output error. ' resulted in an error. !SUBENTRY 1 org.eclipse.cdt.dsf.gdb 4 10004 2011-06-13 12:06:55.727
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Warning Cannot Insert Breakpoint 1
questions you might have Meta Discuss the workings and policies gdb cannot access memory at address of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow https://www.eclipse.org/forums/index.php/t/213210/ is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up After setting a breakpoint in Qt, gdb says: “Error accessing memory address” up vote 5 down vote favorite 1 I wrote a very simple Qt program here: int main(int argc, http://stackoverflow.com/questions/912808/after-setting-a-breakpoint-in-qt-gdb-says-error-accessing-memory-address char* argv[]) { QApplication app(argc, argv); QTableView table(&frame); table.resize(100, 100); table.show(); return app.exec(); } And when I try to set a breakpoint where the table gets clicked, I get this error from gdb: (gdb) symbol-file /usr/lib/libQtGui.so.4.4.3.debug Load new symbol table from "/usr/lib/libQtGui.so.4.4.3.debug"? (y or n) y Reading symbols from /usr/lib/libQtGui.so.4.4.3.debug...done. (gdb) br 'QAbstractItemView::clicked(QModelIndex const&)' Breakpoint 1 at 0x5fc660: file .moc/release-shared/moc_qabstractitemview.cpp, line 313. (gdb) run Starting program: ./qt-test Warning: Cannot insert breakpoint 1. Error accessing memory address 0x5fc660: Input/output error. Does anyone know why the breakpoint can't be inserted? debugging qt qt4 gdb breakpoints share|improve this question edited Jul 14 '09 at 6:19 Quinn Taylor 36.7k1395118 asked May 26 '09 at 21:18 Neil 10k73448 I'm using Ubuntu Intrepid, and I have installed libqt4-dbg, if that helps at all. –Neil May 26 '09 at 21:22 add a comment| 4 Answers 4 active oldest votes up vote 2 down vote accepted If you want to au
to GDB A Sample GDB Session Getting In and Out of GDB Invoking GDB Choosing files Choosing https://ftp.gnu.org/old-gnu/Manuals/gdb-5.1.1/html_mono/gdb.html modes Quitting GDB Shell commands GDB Commands Command syntax Command completion Getting help Running Programs Under GDB Compiling for debugging Starting your program Your program's arguments Your program's environment Your program's working directory Your program's input and output Debugging an already-running process Killing the child process Debugging programs with multiple threads Debugging programs gdb cannot with multiple processes Stopping and Continuing Breakpoints, watchpoints, and catchpoints Setting breakpoints Setting watchpoints Setting catchpoints Deleting breakpoints Disabling breakpoints Break conditions Breakpoint command lists Breakpoint menus "Cannot insert breakpoints" Continuing and stepping Signals Stopping and starting multi-thread programs Examining the Stack Stack frames Backtraces Selecting a frame Information about a frame Examining cannot insert breakpoint Source Files Printing source lines Searching source files Specifying source directories Source and machine code Examining Data Expressions Program variables Artificial arrays Output formats Examining memory Automatic display Print settings Value history Convenience variables Registers Floating point hardware Memory Region Attributes Attributes Memory Access Mode Memory Access Size Data Cache Tracepoints Commands to Set Tracepoints Create and Delete Tracepoints Enable and Disable Tracepoints Tracepoint Passcounts Tracepoint Action Lists Listing Tracepoints Starting and Stopping Trace Experiment Using the collected data set height lpp3 set height lpp2 set height lpp1 Convenience Variables for Tracepoints Using GDB with Different Languages Switching between source languages List of filename extensions and languages Setting the working language Having GDB infer the source language Displaying the language Type and range checking An overview of type checking An overview of range checking Supported languages C and C++ C and C++ operators C and C++ constants C++ expressions C and C++ defaults C and C++ type