public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
* [Bug libstdc++/58737] New: leak in std::regex_match
@ 2013-10-15 11:25 larsbj at lyx dot org
2013-10-15 11:26 ` [Bug libstdc++/58737] " larsbj at lyx dot org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: larsbj at lyx dot org @ 2013-10-15 11:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58737
Bug ID: 58737
Summary: leak in std::regex_match
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: larsbj at lyx dot org
I have something that certainly looks like a memory leak.
g++ --version
g++ (GCC) 4.9.0 20131014 (experimental)
g++ -std=gnu++11 -O2 leak.cpp
If I increase the amount of looping the leak reports
increases linearly.
All output from valgrind below. It might be regex or it might be some
allocator issue, I have seen something with std::deque as well outside
any regex context. Not been able to reproduce though.
^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug libstdc++/58737] leak in std::regex_match 2013-10-15 11:25 [Bug libstdc++/58737] New: leak in std::regex_match larsbj at lyx dot org @ 2013-10-15 11:26 ` larsbj at lyx dot org 2013-10-15 11:27 ` larsbj at lyx dot org ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: larsbj at lyx dot org @ 2013-10-15 11:26 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58737 --- Comment #1 from larsbj at lyx dot org --- Created attachment 31011 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31011&action=edit small program showing the problem ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/58737] leak in std::regex_match 2013-10-15 11:25 [Bug libstdc++/58737] New: leak in std::regex_match larsbj at lyx dot org 2013-10-15 11:26 ` [Bug libstdc++/58737] " larsbj at lyx dot org @ 2013-10-15 11:27 ` larsbj at lyx dot org 2013-10-15 11:32 ` redi at gcc dot gnu.org ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: larsbj at lyx dot org @ 2013-10-15 11:27 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58737 --- Comment #2 from larsbj at lyx dot org --- Created attachment 31012 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31012&action=edit output from valgrind ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/58737] leak in std::regex_match 2013-10-15 11:25 [Bug libstdc++/58737] New: leak in std::regex_match larsbj at lyx dot org 2013-10-15 11:26 ` [Bug libstdc++/58737] " larsbj at lyx dot org 2013-10-15 11:27 ` larsbj at lyx dot org @ 2013-10-15 11:32 ` redi at gcc dot gnu.org 2013-10-15 14:50 ` paolo.carlini at oracle dot com ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: redi at gcc dot gnu.org @ 2013-10-15 11:32 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58737 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2013-10-15 CC| |timshen at gcc dot gnu.org Ever confirmed|0 |1 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/58737] leak in std::regex_match 2013-10-15 11:25 [Bug libstdc++/58737] New: leak in std::regex_match larsbj at lyx dot org ` (2 preceding siblings ...) 2013-10-15 11:32 ` redi at gcc dot gnu.org @ 2013-10-15 14:50 ` paolo.carlini at oracle dot com 2013-10-15 15:01 ` timshen at gcc dot gnu.org 2013-10-15 15:06 ` paolo.carlini at oracle dot com 5 siblings, 0 replies; 7+ messages in thread From: paolo.carlini at oracle dot com @ 2013-10-15 14:50 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58737 --- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> --- Maybe: Index: regex_executor.h =================================================================== --- regex_executor.h (revision 203587) +++ regex_executor.h (working copy) @@ -155,6 +155,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION virtual bool _M_main() = 0; + virtual + ~_Executor() { } + _BiIter _M_current; const _BiIter _M_begin; const _BiIter _M_end; Eh, eh ;) ;) ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/58737] leak in std::regex_match 2013-10-15 11:25 [Bug libstdc++/58737] New: leak in std::regex_match larsbj at lyx dot org ` (3 preceding siblings ...) 2013-10-15 14:50 ` paolo.carlini at oracle dot com @ 2013-10-15 15:01 ` timshen at gcc dot gnu.org 2013-10-15 15:06 ` paolo.carlini at oracle dot com 5 siblings, 0 replies; 7+ messages in thread From: timshen at gcc dot gnu.org @ 2013-10-15 15:01 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58737 --- Comment #4 from Tim Shen <timshen at gcc dot gnu.org> --- Author: timshen Date: Tue Oct 15 15:01:44 2013 New Revision: 203610 URL: http://gcc.gnu.org/viewcvs?rev=203610&root=gcc&view=rev Log: 2013-10-15 Tim Shen <timshen91@gmail.com> PR libstdc++/58737 * include/bits/regex_automaton.h (_Automaton<>::~_Automaton): Fix memory leak by adding it. * include/bits/regex_executor.h (_Executor<>::~_Executor): Likewise. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/include/bits/regex_automaton.h trunk/libstdc++-v3/include/bits/regex_executor.h ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/58737] leak in std::regex_match 2013-10-15 11:25 [Bug libstdc++/58737] New: leak in std::regex_match larsbj at lyx dot org ` (4 preceding siblings ...) 2013-10-15 15:01 ` timshen at gcc dot gnu.org @ 2013-10-15 15:06 ` paolo.carlini at oracle dot com 5 siblings, 0 replies; 7+ messages in thread From: paolo.carlini at oracle dot com @ 2013-10-15 15:06 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58737 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED Target Milestone|--- |4.9.0 --- Comment #5 from Paolo Carlini <paolo.carlini at oracle dot com> --- Fixed. ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2013-10-15 15:06 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-10-15 11:25 [Bug libstdc++/58737] New: leak in std::regex_match larsbj at lyx dot org 2013-10-15 11:26 ` [Bug libstdc++/58737] " larsbj at lyx dot org 2013-10-15 11:27 ` larsbj at lyx dot org 2013-10-15 11:32 ` redi at gcc dot gnu.org 2013-10-15 14:50 ` paolo.carlini at oracle dot com 2013-10-15 15:01 ` timshen at gcc dot gnu.org 2013-10-15 15:06 ` paolo.carlini at oracle dot com
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).