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Qt Error Accessing Memory Address

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template code. Attempting to do so while debugging causes Qt Creator to hang.Agile Board ExportXMLWordPrintable Details Type: Bug Status: Closed Priority: Not Evaluated Resolution: Out of scope Affects Version/s: Qt Creator 2.0.0

Gdb Cannot Insert Breakpoint 0

Fix Version/s: None Component/s: Debugger Labels: None Environment: Windows Vista 64 Description I warning cannot insert breakpoint 1 am unable to set breakpoints in template code. In non-template code, breakpoints work as expected. I am able to

Gdb Cannot Access Memory At Address

step through template code as normal. Attempting to set a breakpoint in template code while debugging causes Qt Creator to issue an Execution Error, e.g.: "Cannot continue debugged process: Warning: Cannot gdb breakpoints insert breakpoint 13. Error accessing memory addres 0x95ab0074: Input/output error." Setting (or forgetting to remove!) a non-disabled breakpoint in template code before starting a debugging session makes Qt Creator issue a warning, "Cannot insert breakpoint 12. Error accessing memory address 0x0. Input/output error," after which the requested debug session does not start, but cannot be killed without re-starting Qt Creator. My template code is instantiated in the same dll as the non-template code it is called from. OptionsSort By NameSort By DateAscendingDescendingAttachments debugger.txt 24/Nov/10 1:30 PM 976 kB Tom Boddington Issue Links relates to QTCREATORBUG-5200 Fix "Internal error: pc 0x0 in read in psymtab, but not in symtab." Closed OptionsIssue OnlyShow All ReviewsShow Open ReviewsShow All IssuesShow Open IssuesGerrit Reviews No reviews matched the request. Check your Options in the drop-down menu of this sections header. Activity Ascending order - Click to sort in descending order All Comments Work Log History Activity Transitions Hide Permalink hjk added a comment - 24/Nov/10 12:28 PM Can you attach sample code and the contents of the debugger log (Windows->Views->Debugger, right pane)? Show hjk added a comment - 24/Nov/10 12:28 PM Can you attach sample code and the contents of the debugger log (Windows->Views->Debugger, right pane)? Hide Permalink Tom Boddington added a comment - 24/Nov/10 1:30 PM As requested, the contents of the right-hand pane of the debugger window. Show Tom Boddington added a comment - 24/Nov/10 1:30 PM As requested, the contents of the right-hand pane of the debugger window. Hide Permalink Tom Bo

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: 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 https://bugreports.qt.io/browse/QTCREATORBUG-3186 you can comment on or make changes to 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 https://sourceware.org/bugzilla/show_bug.cgi?id=8953 Kettenis To: desimoi@sns.it Cc: gdb-gnats@sources.redhat.com Subject: Re: breakpoints/1848: breakpoint (Error accessing memory 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

| Forgot Password Login: [x] Bug14585 - "Error accessing memory address" when creating JIT internal https://sourceware.org/bugzilla/show_bug.cgi?id=14585 breakpoint Summary: "Error accessing memory address" when creating JIT internal breakpoint Status: RESOLVED DUPLICATE of bug 13987 Alias: None Product: gdb Classification: Unclassified Component: gdb (show other bugs) Version: HEAD Importance: P2 normal Target Milestone: --- Assignee: Not yet assigned to anyone URL: Keywords: Depends on: Blocks: Reported: 2012-09-14 19:41 UTC by gdb cannot Sergio Durigan Junior Modified: 2012-09-17 18:37 UTC (History) CC List: 1 user (show) tromey 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 this bug. Description Sergio Durigan Junior 2012-09-14 19:41:22 UTC I cannot insert breakpoint could not find an easy way to reproduce this bug so far. The only way I managed to do so was to: 1) git clone git://git.qemu.org/qemu.git 2) ./configure --enable-kvm --python=python2 --target-list=x86_64-softmmu --disable-uuid --disable-werror --enable-debug --enable-fdt # you will need to install the dependencies 3) gdb -q -ex 'run' /tmp/install-qemu/bin/qemu-system-x86_64 And you will see: Warning: Cannot insert breakpoint -1. Error accessing memory address 0x34e96c: Input/output error. Running git-bisect on gdb.git, I found the culprit as being: a7262466d02155f5f70422804e5971f8d5e78118 is the first bad commit commit a7262466d02155f5f70422804e5971f8d5e78118 Author: Tom Tromey Date: Wed Feb 1 20:21:21 2012 +0000 I spent some hours debugging this problem, and apparently it happens because the JIT code does not recreate its internal breakpoint (placed on __jit_debug_register_code) when the inferior is created. Somehow the breakpoint address does not get relocated and is invalid when insert_breakpoint_locations tries to reinsert it. This happens on x86_64, confirmed on Fedora 17 and ArchLinux. Comment 1 Sergio Durigan Junior 2012-09-15 04:25:41 U

 

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