Re: [Cppcms-users] Segmentation fault on FreeBSD in high load
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Re: [Cppcms-users] Segmentation fault on FreeBSD in high load
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From: Vinicius P. <ds...@ha...> - 2012-08-07 13:18:37
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Em 07/08/2012, às 04:21, Artyom Beilis escreveu: > > > > >> ________________________________ >> From: Vinicius Pavanelli <ds...@ha...> > >> Thanks for your reply Artyom, >> >> >> I'm checking my code, taking the smaller part that reproduce this bug to understand it, if needed can send but this only happens on FreeBSD. >> >> >> Is CppCMS under FreeBSD considered ok for production or it's mainly Linux? >> > > Yes it is production ready and tested on daily basis: > > http://cppcms.com/files/nightly-build-report.html > > (of course as in any case there may be a bug) > > >> >> The line at #2 is just: set_content_header("text/html"), inside http_response.cpp, this looks very strange to me, it's very ok. >> > > Ok, if so this does not related, you are right. > > >> >> I don't have info.h in my files so i'm assuming it's booster/booster/locale/info.h, is this correct, >> > > Ok I see. > > Also indeed this bug is exactly related. > > > http://sourceforge.net/tracker/?func=detail&aid=3535893&group_id=209965&atid=1011835 > > > I have several questions: > > - What version do you use? Trunk or Stable? (If trunk, does it happens on stable as well?) CppCMS-1.0.1 stable > - Do you compile libcppcms with ICU or without? > - If it is built with ICU, what version? > ICU 4.8.1.1_1 (from packages) > - What is the system locale? (output of locale) > freebsd# locale LANG= LC_CTYPE="C" LC_COLLATE="C" LC_TIME="C" LC_NUMERIC="C" LC_MONETARY="C" LC_MESSAGES="C" LC_ALL= > - What is the content header returned by the application (when it is not crashed) Content-Type: text/html; charset=utf-8 > > Now about libstdc++. > > - What version of GCC do you use, or you are using Clang? > > > Please note: I ask about building CppCMS not your application. > I used both gcc 4.2.1 (20070831) and clang 3.0 (20111021). > > - How many cores does you computer has? 4 cores > > - How do you link with libcppcms library statically or dynamically? > Dynamically > > I don't think it is related to threading library it may be a bug > connected to facets, locking and standard library. If I can provide any more info please let me know. Thanks for your help Artyom, > > >> >> >> Em 07/08/2012, às 00:57, Artyom Beilis escreveu: >> >> See: >>> >>> >>> 1 0x0000000800939cb3 in cppcms::http::response::set_content_header > (this=0x80ba7ac00, content_type=@0x7fffffffd590) at info.h:83 >>> >>> >>> It looks like content_type you pass in info.h line 83 has very strange address 0x7fffffffd590 - i.e. it is very close to 0x7FFFFFFFF >>> It seems strange to me check your code. >>> >>> >>> Artyom Beilis >>> -------------- >>> CppCMS - C++ Web Framework: http://cppcms.com/ >>> CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/ >>> >>> >>> >>>> ________________________________ >>>> From: Vinicius Pavanelli <ds...@ha...> >>>> To: cpp...@li... >>>> Sent: Tuesday, August 7, 2012 5:15 AM >>>> Subject: [Cppcms-users] Segmentation fault on FreeBSD in high load >>>> >>>> Hi, >>>> >>>> I'm new to CppCMS and been doing some work on it, too see where I get. >>>> When I run the code on Linux/Gentoo it works fine, on FreeBSD it runs fine too, but on high loads it crashs (like when testing with siege). >>>> Can anyone help me on what may be wrong with it? It's my code, something on FreeBSD? >>>> >>>> By the way, I got 22k trans/sec with CppCMS on Gentoo, running the embedded web server, the Apache with static files is way bellow this. >>>> The performance gain from PHP to CppCMS is very impressive. >>>> >>>> Thanks in advance, >>>> Vinicius >>>> >>>> >>>> System: FreeBSD freebsd 9.0-RELEASE-p3 FreeBSD 9.0-RELEASE-p3 #0: Tue Jun 12 02:52:29 UTC 2012 ro...@am...:/usr/obj/usr/src/sys/GENERIC amd64 >>>> >>>> The gdb log is: >>>> ---------------------- >>>> Program received signal SIGSEGV, Segmentation > fault. >>>> [Switching to Thread 804807400 (LWP 100101/wep)] >>>> 0x000000000061d870 in vtable for __cxxabiv1::__class_type_info () >>>> (gdb) bt >>>> #0 0x000000000061d870 in vtable for __cxxabiv1::__class_type_info () >>>> #1 0x0000000800939cb3 in cppcms::http::response::set_content_header (this=0x80ba7ac00, content_type=@0x7fffffffd590) at info.h:83 >>>> #2 0x000000080093b90b in response (this=0x80ba7ac00, context=@0x807bf75b0) at /root/work/cppcms-1.0.1/src/http_response.cpp:116 >>>> #3 0x000000080094953d in context (this=0x807bf75b0, conn=Variable "conn" is not available. >>>> ) at /root/work/cppcms-1.0.1/src/http_context.cpp:58 >>>> #4 0x0000000800a2dc07 in booster::callback<void ()(booster::system::error_code const&)>::callable_impl<void, cppcms::impl::cgi::socket_acceptor<cppcms::impl::cgi::http, cppcms::impl::cgi::http_creator>::accept_binder>::operator() (this=Variable "this" is not available. >>>> ) at > cgi_acceptor.h:140 >>>> #5 0x0000000800cf9059 in operator() (this=0x8083feee0, e=Variable "e" is not available. >>>> ) at callback.h:211 >>>> #6 0x0000000800cee189 in booster::callback<void ()()>::callable_impl<void, booster::aio::event_loop_impl::event_handler_dispatcher>::operator() (this=Variable "this" is not available. >>>> ) >>>> at callback.h:211 >>>> #7 0x0000000800cef490 in booster::aio::event_loop_impl::run_one (this=0x804842200, evs=0x80480e000, evs_size=128) at callback.h:201 >>>> #8 0x0000000800cec349 in booster::aio::io_service::run (this=Variable "this" is not available. >>>> ) at /root/work/cppcms-1.0.1/booster/lib/aio/src/io_service.cpp:144 >>>> #9 0x0000000800918dde in cppcms::service::run (this=0x7fffffffda80) at /root/work/cppcms-1.0.1/src/service.cpp:574 >>>> #10 0x000000000040d472 in main (argc=Variable "argc" is not available. >>>> ) at > wep.cpp:167 >>>> ---------------------- >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Live Security Virtual Conference >>>> Exclusive live event will cover all the ways today's security and >>>> threat landscape has changed and how IT managers can respond. Discussions >>>> will include endpoint security, mobile security and the latest in malware >>>> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ >>>> _______________________________________________ >>>> Cppcms-users mailing list >>>> Cpp...@li... >>>> https://lists.sourceforge.net/lists/listinfo/cppcms-users >>>> >>>> >>>> ------------------------------------------------------------------------------ >>> Live Security Virtual Conference >>> Exclusive live event will cover all the ways today's security and >>> threat landscape has changed and how IT managers can respond. Discussions >>> will include endpoint security, mobile security and the latest in malware >>> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/_______________________________________________ >>> Cppcms-users mailing list >>> Cpp...@li... >>> https://lists.sourceforge.net/lists/listinfo/cppcms-users >>> >> >> ------------------------------------------------------------------------------ >> Live Security Virtual Conference >> Exclusive live event will cover all the ways today's security and >> threat landscape has changed and how IT managers can respond. Discussions >> will include endpoint security, mobile security and the latest in malware >> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ >> _______________________________________________ >> Cppcms-users mailing list >> Cpp...@li... >> https://lists.sourceforge.net/lists/listinfo/cppcms-users >> >> >> > > > > Artyom Beilis > -------------- > CppCMS - C++ Web Framework: http://cppcms.com/ > CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/ > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Cppcms-users mailing list > Cpp...@li... > https://lists.sourceforge.net/lists/listinfo/cppcms-users |
