This is an observation from a Debian user. I use Debian 64bit on my home PC.
Between the end of December/beginning of January and now, something in the Debian repository which I fetched, probably during the update to gcc 5.3 branch, caused a significant change from the viewpoint of valgrind/memcheck. Most notably c11++ runtime (or is it spelled c++11 ?) seems to have been introduced and this caused massive reports of mismatched new vs free from valgrind/memcheck. c++11 runtime seems to use |new| operation to create some data in a very primitive internal string handling function, and these string data are "free"ed by many other functions that my application (mozilla thunderbird) use. So delete vs free issues are reported. I suspect c++11 ought to use "malloc()" for the internal string operation, but then maybe other parts of c++11 library may complain about malloc vs delete mismatch then :-( I think those who want to move on to newer GCC (g++) and its runtime may want to get prepared for a surprise. I wish the developers of c++11 runtime use valgrind/memcheck during their development cycle. Maybe they use addresssanitizer and don't pay attention to the free vs delete issue much. Just my two cents worth. CI On 2016/01/19 7:13, ISHIKAWA,chiaki wrote: > On 2016/01/18 23:32, Julian Seward wrote: >> Chiaki, >> >>> First of all, thank you for sharing this great package. >> First of all, thank you for supporting Thunderbird. I use it all the time. >> >>> --11405-- WARNING: Serious error when reading debug info >>> --11405-- When reading debug info from >>> /usr/lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0.3200.3: >>> --11405-- Ignoring non-Dwarf2/3/4 block in .debug_info >> Hmm. That is pretty strange. Can you send by email (not to the >> list) a copy of this libgdk_pixbuf-2.0.so.0.3200.3, for investigation? >> >> J > Yes, I will. > > Chiaki > > > > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 > _______________________________________________ > Valgrind-users mailing list > Valgrind-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/valgrind-users > > ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
