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Bug8953 - breakpoint (Error accessing memory address) Summary: breakpoint (Error accessing memory address) gdb cannot insert breakpoint error accessing memory Status: ASSIGNED Alias: None Product: gdb Classification: Unclassified Component: breakpoints gdb error accessing memory address input output error (show other bugs) Version: 6.3 Importance: P2 critical Target Milestone: --- Assignee: Not yet assigned to gdb cannot insert breakpoint cannot access memory at address 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 gdb break cannot access memory at address 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 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

Error In Re-setting Breakpoint 1: Cannot Access Memory At Address

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 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

| Forgot Password Login: [x] Bug14585 - "Error accessing memory address" when creating JIT internal

Gdb Cannot Insert Breakpoint 0

breakpoint Summary: "Error accessing memory address" when creating JIT internal breakpoint gdb cannot access memory at address 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 https://sourceware.org/bugzilla/show_bug.cgi?id=8953 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 https://sourceware.org/bugzilla/show_bug.cgi?id=14585 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 UT

password? Problem with breakpoints in gdb It is now over 60 days since the last post. This thread is closed.  Refresh page Posted by Greven Canada(835 posts)bio Date Thu 05 Feb http://gammon.com.au/forum/?id=3731 2004 10:36 PM (UTC) Message I'm trying to set a break point, but I'm getting this error: Quote:(gdb) break fight.c:525 Breakpoint 1 at 0x80e1bca: file fight.c, line 525. (gdb) cont Continuing. Warning: Cannot insert http://forum.lazarus.freepascal.org/index.php?topic=10317.0 breakpoint 1. Error accessing memory address 0x80e1bca: Input/output error. The same program may be running in another process. I get similar problem when I try to boot it from within gdb,but the breakpoint gdb cannot is -2. My compilation flags are: Quote:DEBUG = -ggdb C_FLAGS = -g3 -g2 -W -Wall $(DEFINES) $(PROF) $(NOCRYPT) $(DBUGFLG) $(DEBUG) -export-dynamic I'm really unclear on what the problem may be, or what I can do about it. Nobody ever expects the spanish inquisition! darkwarriors.net:4848 http://darkwarriors.nettop Posted by David Haley USA(3,881 posts)bio Date Reply #1 on Fri 06 Feb 2004 01:27 AM (UTC) Message Looks like you might have cannot access memory the program running twice (under two separate process.) David Haley aka Ksilyan Head Programmer, Legends of the Darkstone http://david.the-haleys.orgtop Posted by Greven Canada(835 posts)bio Date Reply #2 on Fri 06 Feb 2004 01:27 AM (UTC)Amended on Fri 06 Feb 2004 01:33 AM (UTC) by Greven Message nope, only one, I checked that. This might help:dwadmins@godlike:~/src$ ps ux USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND dwadmins 555 0.0 0.2 2104 1836 ? S Feb04 0:00 /bin/bash ./swr-watch dwadmins 904 0.0 0.4 6232 3204 ? S Feb04 0:00 sshd: dwadmins@pts/14 dwadmins 905 0.0 0.3 2372 2432 pts/14 S Feb04 0:00 -bash dwadmins 562 1.3 1.4 11528 11496 ? SN Feb04 21:13 swr 4848 hotboot 5 0 0 0 -1 dwadmins 2298 0.0 0.1 2788 1368 pts/14 R 18:32 0:00 ps ux dwadmins@godlike:~/src$ gdb swr 562 GNU gdb 5.3 Copyright 2002 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-slackware-linux"... Attaching to p

FAQ Wiki Bugtracker IRC channel Developer Blog Follow us on Twitter Latest SVN Mailing List Other languages Foundation Website Useful Wiki Links Project Roadmap Getting the Source Screenshots About donations (wiki) Bookstore Computer Math and Games in Pascal Lazarus, the complete guide (only a few left) Search Advanced search « previous next » Print Pages: [1] Author Topic: How to reset gdb settings (Read 13830 times) jagorath New member Posts: 34 How to reset gdb settings « on: August 26, 2010, 02:17:50 am » I seem to have completely hosed my debugger settings within Lazarus somehow, is there a way to clear the settings so they will be restored to the default? Perhaps by deleting an .ini file?Currently I have to run without a debugger specified because if I specify one the application doesn't run. Logged Martin_fr Administrator Hero Member Posts: 4031 Re: How to reset gdb settings « Reply #1 on: August 26, 2010, 02:31:43 am » There aren't many debugger related settings, and I am not sure, if the default will be of much use (since you need to specify at least the location of gdb.exe)Lazarus settings are in the user folder/home/name/.lazarus/*C:\Users\name\AppData\Local\lazarus\*Make a backupOther setting are in your project.lpiproject.lpslps is optional, and may either be in project dir, or the above user dirC:\Users\name\AppData\Local\lazarus\projectsessions-----------Better is to just set debugger type = gdband select a gdb.exe (should be in a subfolder of your lazarus dir)in the project options, make sure you compile with debug info -g or -gwAnd make sure:- you do not strip debug info- you do not use an external debug info file Logged jagorath New member Posts: 34 Re: How to reset gdb settings « Reply #2 on: August 26, 2010, 04:51:56 am » Thanks for the reply Martin_fr, I set the debugger to C:\lazarus\mingw\bin\gdb.exe and the type GDB, and made sure -g was included in the options. The problem remains though - when I run the app it doesn't show up, like gdb can't attach to it or something, and I have to stop the app.I'm using 64-bit lazarus, perhaps GDB only works with 32-bit? « Last Edit: August 26, 2010, 07:02:57 am by jagorath » Logged Martin_fr Administrator Hero Member Posts: 4031 Re: How to reset gdb settings « Reply #3 on: August 26, 2010, 10:43:05 am » gdb should work on 64 bit.not sure,on

 

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