That wiki page seems to be out of date: Got stuck in the very first line asked on the wiki page:
valgrind --tool=memcheck --db-attach=yes enlightenment It returns: valgrind: Unknown option: --db-attach=yes valgrind: Use --help for more information or consult the user manual. --db-attach is not mentioned on the --help of valgrind, and this site ( http://valgrind.org/.../dist.news.html <http://valgrind.org/docs/manual/dist.news.html>) states that: * The command line options --db-attach and --db-command have been removed.* * They were deprecated in 3.10.0.* Suggestions? On Sun, Jan 8, 2017 at 5:37 PM, Simon Lees <sfl...@suse.de> wrote: > > > On 01/09/2017 08:50 AM, Jeff Hoogland wrote: > > How does valgrind differ from Xephyr? Is there a wiki page explaining how > > to do what you are suggesting? > > > > valgrind and Xephyr are too completely different things doing unrelated > things, in enlightenments case its best that if you are running > enlightenment under valgrind you run it in Xephyr because its going to > be close to too slow to use. > > Xephyr lets you run an xsession such as enlightenment within a window of > another running xsession so you can run a instance of e in a window > inside another instance of e. > > Valgrind is a memory debugging tool it tracks when blocks of memory are > allocated and deallocated by doing this it can tell you when a block of > code read / writes to invalid memory regions causing memory corruption > which is likely whats causing your bug. Generally in code this happens > when you have a pointer stored in 2 or more places and place one frees > its memory but place 2 then decides to use it again later once the > memory has been allocated to something else. > > > On Fri, Jan 6, 2017 at 2:39 AM, Carsten Haitzler <ras...@rasterman.com> > > wrote: > > > >> On Fri, 6 Jan 2017 02:21:10 -0600 Jeff Hoogland <jeffhoogl...@gmail.com > > > >> said: > >> > >>> Having some users report segfaults with our E17 fork using the latest > EFL > >>> under our Ubuntu 16.04 base. > >>> > >>> Had someone run a back trace and post it here > >>> <http://forums.bodhilinux.com/index.php?/topic/14036-moksha- > >> segfault/?p=102195>. > >>> Looks like it is dying in the EFL somewhere? I'm honestly not great at > >>> debugging C code - anyone help point me in the right direction? > >> > >> the backtrace is "long after the bug already happened". the malloc heap > is > >> corrupt. libc has detected something is wrong and aborted during an > >> allocation. > >> what caused the issue is unknown. it could be efl. could be e. could be > >> libpng. could be just about anything. it is unknown. the best way to > find > >> out > >> who is doing this is to use valgrind to run execution and it can trap > >> out-of-allocation writes and tell you the exact point where this write > is > >> done. > >> that would provide the info needed to fix if it isn;'t already fixed in > >> git efl > >> - if the issue is there. if the issue is in e17 it'd point that out > too. or > >> wherever else it is. > >> > >> -- > >> ------------- Codito, ergo sum - "I code, therefore I am" -------------- > >> The Rasterman (Carsten Haitzler) ras...@rasterman.com > >> > >> > > > > > > -- > > Simon Lees (Simotek) http://simotek.net > > Emergency Update Team keybase.io/simotek > SUSE Linux Adeliade Australia, UTC+9:30 > GPG Fingerprint: 5B87 DB9D 88DC F606 E489 CEC5 0922 C246 02F0 014B > > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > _______________________________________________ > enlightenment-devel mailing list > enlightenment-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > > -- ~Jeff Hoogland <http://jeffhoogland.com/> My Projects on GitHub <https://github.com/JeffHoogland> ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
