The 64-bit compiler doesn't do this incidentally. In other programs I have noted that the program appears to run for a while before it is terminated. (ie. Format For Printing -XML -Clone This Bug -Top of page First Last Prev Next This bug is not in your last search results. After hours of investigation, I could not find out any relation to gdb, gcc, kernel, etc. get redirected here
Program received signal SIGSEGV, Segmentation fault. 0x080483e1 in initfunc (array=0x0, len=100) at segfaulter.c:15 15 array[i] = i; (gdb) where #--- let's see where it segfaulted #0 0x080483e1 in initfunc (array=0x0, len=100) Also, you can give just the unique prefix of a command as the command and gdb will execute it. You get the "Cannot access memory at address 0x0" from the gdb *command line* if you simply "break main" and print argc in a program that doesn't use argc/argv (and was Contact Us - Advertising Info - Rules - LQ Merchandise - Donations - Contributing Member - LQ Sitemap - Main Menu Linux Forum Android Forum Chrome OS Forum Search LQ https://forums.opensuse.org/showthread.php/415438-argc-Cannot-access-memory-at-address-0x0
I tried debugging one of the examples which also gave me the "argc=Cannot access memory at address 0x0". For more details see e.g. I'll file a bug with Gentoo and reference it here in a second.
Run 1 is a gdb run of badprog.c. It still reports errors when you break at main, but it will let you view the pair once you've stepped into main. I have no idea of where to find it in my KDevelop though. Sample Program, Exceptions logged, and debugger console output are included below ***************** Environment SUSE 10.1 x86 (latest patches applied) AMD64 based hardware Also tried Sun Java 1.4.2 - same results ****************
Saluti R Reply With Quote 29-May-2009,07:14 #4 ken_yap View Profile View Forum Posts View Blog Entries View Articles Flux Capacitor Penguin Join Date Jun 2008 Location UTC+10 Posts 9,936 Re: argc=Cannot Cannot Access Memory At Address Gdb Core execute n (next) 6. Personal Open source Business Explore Sign up Sign in Pricing Blog Support Search GitHub This repository Watch 178 Star 1,391 Fork 403 openscad/openscad Code Issues 409 Pull requests 56 Projects Note that this setting is for the current shell only, so when you close the xterm and open another, you will have to type in this command again.
Also, as pointed out elsewhere, there is no termination case if the value is not found. this website I compiled using your command. Cannot Access Memory At Address 0x0 Gdb As in my example above Code: $ ulimit -s 102400 will give you 102400 kB of stack (100MB) which should be enough for the variables that you are using. Argc= Error Reading Variable Then "gdb main", "break main" and run to the breakpoint. "p argc" or "p argv" gives the error.
set a breakpoint on line 6 ( getargs: printf ... Get More Info Terms Privacy Security Status Help You can't perform that action at this time. It would mean it's something that's changed recently (my 10.0 builds are OK), but it would explain it very neatly. Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
Latest LQ Deal: Complete CCNA, CCNP & Red Hat Certification Training Bundle Blogs Recent Entries Best Entries Best Blogs Blog List Search Blogs Home Forums HCL Reviews Tutorials Articles Register Search HTH, -nick Comment 5 Mikhail Khodjaiants 2007-01-15 08:44:37 EST (In reply to comment #4) Thanks for information. Reply With Quote 26th January 2008,18:22 #18 wysota View Profile View Forum Posts View Blog Entries Visit Homepage View Articles The "Q" Join Date Jan 2006 Location Warsaw, Poland Posts 33,213 http://ngogeeks.com/cannot-access/argc-cannot-access-memory.php argc should still be valid as it was at line 5.
Any breakpoints set in program are also ignored. This is free software; see the source for copying conditions. Type "show copying" to see the conditions.
Reply With Quote 29-May-2009,09:51 #5 roberto60 View Profile View Forum Posts View Blog Entries View Articles Explorer Penguin Join Date Jul 2008 Posts 232 Re: argc=Cannot access memory at address 0x0 Use the -dograb option to enforce grabbing.7 return 0;(gdb) bt#0 main (argc=Cannot access memory at address 0x0) at main.cpp:7(gdb) p argcCannot access memory at address 0x0(gdb) n8 }(gdb) bt#0 main (argc=0, at breakpoint, execute bt (backtrace) and examine the output, which looks normal. 5. This is a nice feature in the case when you have many breakpoints set and do not want to exit gdb, recompile, re-start gdb with the new a.out, and reset all
Please, check if it works from the command line. If it happens at the end of a long chain, you may be overflowing the stack, which would be an indication that the binary search algorithm was incorrect. –simonc Jan 23 Having a problem logging in? this page I'm not big on Intel architecture internals, but you just might be running past an internal limit there?
I'm told this doesn't happen with the 64-bit compiler in SUSE 10.1, incidentally. I didn't think of that. The folks at LinuxQuestions.org helped me make some progress... Over 90 percent of questions asked here gets answered.
Either malloc the variables (preferred) or increase the stack size. This can be very useful when you only want gdb control after iteration 1000 of a loop, for example. It will instantly tell you where the segfault is. If I compile a simple "int main(int argc, char *argv)" program with -g, and debug with gdb, I'm getting an error when I break at the start and try to print
It still reports errors when you break at main, but it will let you view the pair once you've stepped into main." Format For Printing -XML -Clone This Bug -Top of
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