[Bug 1116282] [NEW] valgrind reports Invalid read of size 8 in wcscmp
Public bug reported: When exiting my application, valgrind reports an error. Error might be in glibc or libstdc++ or it might be a false-positive from valgrind as well. A google search pointed me to a similar bug in redhat : https://bugzilla.redhat.com/show_bug.cgi?id=755242 I think a simple instanciation of std::locale in a hello world should reproduce the bug. ==12625== Invalid read of size 8 ==12625==at 0x5C53A10: wcscmp (wcscmp.S:208) ==12625==by 0x54F5EF3: std::moneypunctwchar_t, false::~moneypunct() (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.17) ==12625==by 0x54F5F78: std::moneypunctwchar_t, false::~moneypunct() (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.17) ==12625==by 0x54EAFE4: std::locale::_Impl::~_Impl() (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.17) ==12625==by 0x54EB11C: std::locale::~locale() (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.17) ==12625==by 0x5BEDD1C: __cxa_finalize (cxa_finalize.c:56) ==12625==by 0x4EA9482: ??? (in /home/jeremy/git/myapp_x86_64-linux-gnu/lib/libMyApp.so) ==12625==by 0x400F91D: _dl_fini (dl-fini.c:254) ==12625==by 0x5BED900: __run_exit_handlers (exit.c:78) ==12625==by 0x5BED984: exit (exit.c:100) ==12625==by 0x5BD3773: (below main) (libc-start.c:258) ==12625== Address 0x7830898 is 0 bytes after a block of size 8 alloc'd ==12625==at 0x4C2AAA4: operator new[](unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==12625==by 0x54F5BD9: std::moneypunctwchar_t, false::_M_initialize_moneypunct(__locale_struct*, char const*) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.17) ==12625==by 0x54ED516: std::locale::_Impl::_Impl(char const*, unsigned long) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.17) ==12625==by 0x54EDFB9: std::locale::locale(char const*) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.17) ==12625==by 0x4F78FAE: boost::filesystem::path::codecvt() (path.cpp:911) ==12625==by 0x4F7946E: boost::filesystem::path::begin() const (path.hpp:202) ==12625==by 0x4F79BD7: boost::filesystem::path::compare(boost::filesystem::path const) const (path.cpp:193) ==12625==by 0x4F79D43: boost::filesystem::path::extension() const (path.hpp:615) [... My app ...] 1) Ubuntu 12.10 2) apt-cache policy libc6 libc6: Installé : 2.15-0ubuntu20 Candidat : 2.15-0ubuntu20 Table de version : *** 2.15-0ubuntu20 0 500 http://fr.archive.ubuntu.com/ubuntu/ quantal/main amd64 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: libc6 2.15-0ubuntu20 ProcVersionSignature: Ubuntu 3.5.0-23.35-generic 3.5.7.2 Uname: Linux 3.5.0-23-generic x86_64 ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 Date: Tue Feb 5 14:57:55 2013 InstallationDate: Installed on 2013-01-03 (32 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=set LANG=fr_FR.UTF-8 SHELL=/bin/bash SourcePackage: eglibc UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: eglibc (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug quantal running-unity -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1116282 Title: valgrind reports Invalid read of size 8 in wcscmp To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1116282/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 472506] Re: No DRM, high cpu usage by X on rendering and frequent X crashes on Intel(R) G45/G43 Integrated Graphics Chipset
Hi, I have the same problem, with the exact same video harware in Ubuntu 9.10. In BIOS, the PAVP option is Disabled. My X session starts with non fatal errors but it is very slow and it systematically crashes when I run the System Testing tools provided with Ubuntu. The video test makes X crash. I also have to say that the 'nomodeset' option is given to my kernel in order to not hang at startup. How can I help reporting useful information to debug this problem as it is very anoying and it has been here for a while now. I would very much apreciate your help. Thanks. --- xserver-xorg-video-intel is version 2:2.9.0-1ubuntu2.1 -- $ uname -a Linux xxx-desktop 2.6.31-20-generic #57-Ubuntu SMP Mon Feb 8 09:02:26 UTC 2010 x86_64 GNU/Linux $ grep EE Xorg.0.log (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (II) Loading extension MIT-SCREEN-SAVER (EE) intel(0): [drm] Failed to detect GEM. Kernel 2.6.28 required. (EE) intel(0): Failed to become DRM master. (EE) intel(0): Failed to initialize kernel memory manager $ grep WW Xorg.0.log (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (WW) The directory /usr/share/fonts/X11/cyrillic does not exist. (WW) intel(0): libpciaccess reported 0 rom size, guessing 64kB (WW) intel(0): DRI2: failed to open drm device (WW) intel(0): drmSetMaster failed: Bad file descriptor $ lspci -vv 00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset Integrated Graphics Controller (rev 03) Subsystem: ASRock Incorporation Device 2e22 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast TAbort- TAbort- MAbort- SERR- PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 28 Region 0: Memory at fd80 (64-bit, non-prefetchable) [size=4M] Region 2: Memory at d000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at 9080 [size=8] Capabilities: access denied Kernel modules: i915 ** Attachment added: glxinfo.log http://launchpadlibrarian.net/39452590/glxinfo.log -- No DRM, high cpu usage by X on rendering and frequent X crashes on Intel(R) G45/G43 Integrated Graphics Chipset https://bugs.launchpad.net/bugs/472506 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 472506] Re: No DRM, high cpu usage by X on rendering and frequent X crashes on Intel(R) G45/G43 Integrated Graphics Chipset
$ cat xorg.conf Section Device Identifier Configured Video Device EndSection Section Monitor Identifier Configured Monitor EndSection Section Screen Identifier Default Screen Monitor Configured Monitor Device Configured Video Device EndSection ** Attachment added: lshw.log http://launchpadlibrarian.net/39452604/lshw.log ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Invalid = Confirmed ** Attachment removed: lshw.log http://launchpadlibrarian.net/39452604/lshw.log -- No DRM, high cpu usage by X on rendering and frequent X crashes on Intel(R) G45/G43 Integrated Graphics Chipset https://bugs.launchpad.net/bugs/472506 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 472506] Re: No DRM, high cpu usage by X on rendering and frequent X crashes on Intel(R) G45/G43 Integrated Graphics Chipset
** Attachment added: lshw.log http://launchpadlibrarian.net/39452811/lshw.log -- No DRM, high cpu usage by X on rendering and frequent X crashes on Intel(R) G45/G43 Integrated Graphics Chipset https://bugs.launchpad.net/bugs/472506 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
