Pc Internal Error
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text] [RFA] Fix a "pc ... in psymtab but not in symtab" internal error warning From: Joel Brobecker
Internal Power Error Windows 10 Hp
Fix a "pc ... in psymtab but not in symtab" internal error warning Hello, internal power error lenovo After fixing the problem in mdebugread.c (see one of my recent patches), GDB was no longer crashing, but some internal internal_power_error windows 10 errors later appeared. Something like this: warning: (Internal error: pc 0x3ff800203a8 in read in psymtab, but not in symtab.) This would happen when trying to do a backtrace, for intance. These warnings are http://answers.microsoft.com/en-us/windows/forum/windows_10-start/windows-10-internal-power-error/34e494e0-8d88-45af-8e06-834d3245e8b9?auth=1 really annoying, as they have a tendency to flood the regular output... I found that the address was a valid PC address for a function inside one of the system libraries (eg libc or libpthread, for instance). What happened is that GDB was doing a symtab lookup for this address and did not find any. It then did a psymtab lookup, and found one. But then https://sourceware.org/ml/gdb-patches/2003-01/msg00074.html GDB was surprised to find out that the psymtab was already read in, and hence generated the warning. See find_pc_sect_symtab in symtab.c: | ALL_SYMTABS (objfile, s) | { | if (BLOCK_START (b) <= pc && BLOCK_END (b) > pc && [...]) | { | [...] | best_s = s; | } | } | | if (best_s != NULL) | return best_s; | | ps = find_pc_sect_psymtab (pc, section); | if (ps) | { | if (ps->readin) | warning ("Internal error: [...]"); | s = PSYMTAB_TO_SYMTAB (ps); | } | | return s; What really striked me when I started debugging this is that the psymtab found by find_pc_sect_psymtab was completely incorrect. At second thought, it should not have found any psymtab, since the symbol in question did not come with any debugging info besides the minimal symbol table. So I looked at the textlow and texthigh values for the psymtab, and was started by the texthigh value: 0xfffffffffffffffe, or written differently: -2. A "maintenance print symbols" and "maintenance print psymbols" confirmed that many symtabs had a suspisciouly high texthigh value. These dumps also revealed that these entries contained procedures with empty names and and address of 0xff
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us http://stackoverflow.com/questions/4601273/gdb-internal-error-setting-breakpoints Learn more about Stack Overflow the company Business Learn more about hiring developers or http://www.qtcentre.org/threads/43195-Crash-Internal-error-pc-0x47-in-read-in-psymtab-but-not-in-symtab posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up gdb: internal error setting breakpoints up vote 7 internal power down vote favorite My program is compiled with the -g flag. I am having the following problem: 1) I have set a breakpoint in a function that is in a header file. The breakpoint works. Now, when I go two level up, it is supposed to take me to a C file (Sizer.C:505). It does, but I get loads of warnings: warning: (Internal error: pc 0xff6323 in read internal power error in psymtab, but not in symtab.) warning: (Internal error: pc 0xff6324 in read in psymtab, but not in symtab.) warning: (Internal error: pc 0xff6323 in read in psymtab, but not in symtab.) warning: (Internal error: pc 0xff6323 in read in psymtab, but not in symtab.) #2 0x0000000000ff6324 in SizePacketImpl
0x47 in read in psymtab, but not in symtab. If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Welcome to Qt Centre. Qt Centre is a community site devoted to programming in C++ using the Qt framework. Over 90 percent of questions asked here gets answered. If you are looking for information about Qt related issue — register and post your question. You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today! If you have any problems with the registration process or your account login, please contact us. + Reply to Thread Results 1 to 4 of 4 Thread: Crash : Internal error: pc 0x47 in read in psymtab, but not in symtab. Thread Tools Show Printable Version Subscribe to this Thread… Search Thread Advanced Search Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 18th July 2011,09:08 #1 tonnot View Profile View Forum Posts View Blog Entries View Articles Advanced user Join Date Sep 2010 Posts 654 Thanks 56 Thanked 1 Time in 1 Post Qt products Platforms Crash : Internal error: pc 0x47 in read in psymtab, but not in symtab. I can view that the point that rise the error is located (every time at different point) inside a generic "ui_ui.h" that is a widget I create from main window. (Internal error: pc 0x47 in read in psymtab, but not in symtab.) (Internal error: pc 0x47 in read in psymtab, but not in symtab.) (Internal error: pc 0x47 in read in psymtab, but not in symtab.) (Internal error: pc 0x0 in read in psymtab, but not in symtab.) Any idea about the origin of this error ? Any idea about where I have to review my code? NOTE: After disabled and re-enabled the calling function for this widget and two runs, all works fine again ..... Thanks Last edited by tonnot; 18th July 2011 at 09:13. Reply With Quote 18th July 2011,15:21 #2 high_flyer View Profile View Forum Posts View Blog Entries View Articles Wiseguy Join Date Jan 2006 Location Munich, Germany Posts 4,320 Thanks 20 Thanked 377 Times in 371 Posts Qt products Platforms Re: Crash : Internal error: pc 0x47 in