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Gdb Cannot Insert Breakpoint Error Accessing Memory Address

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Gdb Break Cannot Access Memory At Address

Join the Stack Overflow Community Stack Overflow 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 error in re-setting breakpoint 1: cannot access memory at address 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, 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 gdb cannot insert breakpoint 0 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 automatically break in main without setting a breakpoint you can also use the start command. If you need to provide any arguments to the program you can use: start argument1 argument2 share|improve this answer edited May 29 '09 at 9:27 answered May 28 '09 at 20:57 Andy 2,4841525 add a comment| up vote 10 down vote Don't use the gdb command symbol-file to load external symbols. The breakpoint addresses will be wrong since they're not rel

Bug8953 - breakpoint (Error accessing memory address) Summary: breakpoint (Error accessing memory address) Status: ASSIGNED Alias: None Product: gdb Classification: Unclassified Component: breakpoints (show other bugs) Version: 6.3 Importance:

Gdb Cannot Access Memory At Address

P2 critical Target Milestone: --- Assignee: Not yet assigned to anyone URL: Keywords: Depends on: Blocks: Reported: 2005-01-20 02:28 UTC by desimoi Modified: 2008-12-18 19:42 UTC (History) CC List: 4 users (show) gdb-prs jacopo.desimoi kettenis mark.kettenis See Also: Host: Target: Build: Last reconfirmed: Attachments Add an attachment (proposed patch, testcase, etc.) Note You need to log in before you can comment on or make changes to http://stackoverflow.com/questions/912808/after-setting-a-breakpoint-in-qt-gdb-says-error-accessing-memory-address this bug. Description desimoi 2005-01-20 02:28:00 UTC [Converted from Gnats 1848] I can't insert a breakpoint in any program, I always get an error such as: Error accessing memory address 0xblabla: Input/Output Error Release: GNU gdb 6.3 and previous Environment: Gentoo 2004.3 Linux on amd64 Kernel 2.6.9-gentoo-r9 Comment 1 mark.kettenis 2005-01-22 15:57:16 UTC From: Mark Kettenis To: desimoi@sns.it Cc: gdb-gnats@sources.redhat.com Subject: Re: breakpoints/1848: breakpoint (Error accessing memory https://sourceware.org/bugzilla/show_bug.cgi?id=8953 address) Date: Sat, 22 Jan 2005 16:57:16 +0100 (CET) Thanks for your bug report. Unfortunately you don't include quite enough information in the report for me to see what's wrong. My guess would be that even though you're on a 64-bit amd64 system your Linux distribution is set up such that it produces 32-bit binaries bt default. To check whether this is the case, please look at the output of: $ uname -a and $ file gdb If the first command has x86-64 somewhere in its output and the latter line says something like 32-bit ELF, my guess is probably right. In that case you can solve the problem by rebuilding gdb, making sure that you set the environment variable CC to "gcc -m64" before running configure. If my guess isn't right, please provide a self-contained testcase together with the exact commands you typed such that we can try to reproduce your problem. You can use script(1) for that. Cheers, Mark Comment 2 Mark Kettenis 2005-01-28 20:38:43 UTC From: Mark Kettenis To: jacopo.desimoi@sns.it Cc: gdb-gnats@sources.redhat.com Subject: Re: breakpoints/1848: breakpoint (Error accessing memory address) Date: Fri, 28 Jan 2005 21:38:43 +0100 (CET) From: Jacopo De Simoi Date: Fri, 28 Jan 2

Things LocationTech Long-Term Support PolarSys Science OpenMDM More Community Marketplace Events Planet Eclipse Newsletter Videos Participate Report a Bug Forums Mailing Lists Wiki IRC How to https://www.eclipse.org/forums/index.php/t/63790/ Contribute Working Groups Automotive Internet of Things LocationTech Long-Term Support PolarSys https://bugzilla.redhat.com/show_bug.cgi?id=678098 Science OpenMDM Toggle navigation Home Projects Forums Eclipse Community Forums Forum Search: Search Help Register Login Home Home» Language IDEs» C / C++ IDE (CDT)» Qt Debug error Show: Today's Messages :: Show Polls :: Message Navigator Qt Debug error [message gdb cannot #201028] Mon, 03 September 2007 07:22 Eclipse User Originally posted by: ramazangirgin.gmail.com Hi all, I am writing with eclipse in linux( Pardus ). I can compile and run Qt4 applications with eclipse . But when i want to debug my project it gives error like this: " Cannot find bounds of current function" and in console: " No cannot access memory source file named main.cpp" Warnings: "Cannot insert breakpoint 0 Error accessing memory address 0x0: Input/Output error. How can solve that problem and How can I debug my project??? thanks in advance.. Ramazan Report message to a moderator Re: Qt Debug error [message #201039 is a reply to message #201028] Mon, 03 September 2007 08:20 Eclipse User Originally posted by: dmsubs.NOSPAM.consertum.com Sounds like you haven't built your application for debug. You need to use -O0 -g3 to switch on debug from a gcc compiler. HTH -- Derek Ramazan Girgin wrote: > Hi all, > I am writing with eclipse in linux( Pardus ). I can compile and run Qt4 > applications with eclipse . But when i want to debug my project it gives > error like this: > > " Cannot find bounds of current function" > > and in console: > > " No source file named main.cpp" > Warnings: > "Cannot insert breakpoint 0 > Error accessing memory address 0x0: Input/Output error. > > How can s

-Clone This Bug -Last Comment First Last Prev Next This bug is not in your last search results. Bug678098 - Cannot set breakpoints in gdb Summary: Cannot set breakpoints in gdb Status: CLOSED WONTFIX Aliases: None Product: Fedora Classification: Fedora Component: gdb (Show other bugs) Sub Component: --- Version: 14 Hardware: x86_64 Linux Priority unspecified Severity unspecified TargetMilestone: --- TargetRelease: --- Assigned To: Jan Kratochvil QA Contact: Fedora Extras Quality Assurance Docs Contact: URL: Whiteboard: Keywords: Depends On: Blocks: Show dependency tree /graph Reported: 2011-02-16 12:31 EST by Javier Jardón Modified: 2012-08-16 09:29 EDT (History) CC List: 3 users (show) jan.kratochvil pmuldoon sergiodj See Also: Fixed In Version: Doc Type: Bug Fix Doc Text: Story Points: --- Clone Of: Environment: Last Closed: 2012-08-16 09:29:54 EDT Type: --- Regression: --- Mount Type: --- Documentation: --- CRM: Verified Versions: Category: --- oVirt Team: --- RHEL 7.3 requirements from Atomic Host: Cloudforms Team: --- Attachments (Terms of Use) Add an attachment (proposed patch, testcase, etc.) Groups: None (edit) Description Javier Jardón 2011-02-16 12:31:42 EST I have a strange behaviour in gdb: I can't set breakpoints, this is the error: "Cannot insert breakpoint 1. Error accessing memory address 0x3b24481778: Input/output error." It's not related with SELinux, as I disabled selinux (SELINUX=permissive in /etc/selinux/config) and the problem persist. If you need any more info, please tell me. Comment 1 Jan Kratochvil 2011-02-16 12:55:57 EST (In reply to comment #0) > I have a strange behaviour in gdb: I can't set breakpoints, this is the error: > > "Cannot insert breakpoint 1. > Error accessing memory address 0x3b24481778: Input/output error." A reproducer would be the best one. Otherwise I need at least: (gdb) info breakpoints 1 and either (gdb) info proc mappings or (preferred) cat /proc/PID/maps where PID is the _debugged_ process, either from `ps axwf' or from (gdb) p getpid () Thanks. > It's not related with SELinux, as I disabled selinux (SELINUX=permissive in > /etc/selinux/config) and the problem persist. Have you rebooted afterwards? `setenforce 0' is both easier and IMO even safer method. You can verify the current status with `getenforce'. Comment 2 Fedora End Of Life 2012-08-16 09:29:57 EDT This message is a notice that Fedora 14 is now at end of life. Fedora has stopped maintaining and issuing updates for Fedora 14. It is Fedora's policy to close all bug reports from releases that are no longer

 

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