I can reproduce the general protection fault mentioned in comment #44 pretty easily.
I ftraced the eCryptfs code while triggering the crash and don't see much going on other than a lookup(), the eCryptfs inode initialization functions being called, and the a call to ecryptfs_readpage(). This reminded me of an upstream race condition that I fixed not too long ago. I'm backporting those patches to the natty kernel to give it a shot. The patches are already in the oneiric kernel so if someone has successfully reproduced this on oneiric, please speak up. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libreoffice in Ubuntu. https://bugs.launchpad.net/bugs/745836 Title: encrypted swap corrupts application stack/heap [was: soffice.bin SIGSEGV cppu::throwException()] Status in LibreOffice Productivity Suite: Invalid Status in “ecryptfs-utils” package in Ubuntu: Confirmed Status in “libreoffice” package in Ubuntu: Invalid Status in “linux” package in Ubuntu: Incomplete Status in “openoffice.org” package in Ubuntu: Won't Fix Status in “ecryptfs-utils” source package in Oneiric: Confirmed Status in “libreoffice” source package in Oneiric: Invalid Status in “linux” source package in Oneiric: Incomplete Status in “openoffice.org” source package in Oneiric: Won't Fix Bug description: Binary package hint: libreoffice 1) lsb_release -rd Description: Ubuntu 11.04 Release: 11.04 2) apt-cache policy libreoffice-calc libreoffice-calc: Installed: 1:3.3.3-1ubuntu2 Candidate: 1:3.3.3-1ubuntu2 Version table: *** 1:3.3.3-1ubuntu2 0 100 /var/lib/dpkg/status 1:3.3.2-1ubuntu5 0 500 http://us.archive.ubuntu.com/ubuntu/ natty-updates/main i386 Packages 1:3.3.2-1ubuntu4 0 500 http://us.archive.ubuntu.com/ubuntu/ natty/main i386 Packages apt-cache policy libreoffice-writer libreoffice-writer: Installed: 1:3.3.3-1ubuntu2 Candidate: 1:3.3.3-1ubuntu2 Version table: *** 1:3.3.3-1ubuntu2 0 100 /var/lib/dpkg/status 1:3.3.2-1ubuntu5 0 500 http://us.archive.ubuntu.com/ubuntu/ natty-updates/main i386 Packages 1:3.3.2-1ubuntu4 0 500 http://us.archive.ubuntu.com/ubuntu/ natty/main i386 Packages 3) What is expected to happen in a KDE Natty in a KDE session with the KDE integration active or GNOME is a Writer or Calc file untouched for a long period of time (ex. 1 hour+) is when one tries to edit it, the application does not crash. 4) What happens instead is it crashes. This is highly correlated to both EcryptfsInUse and resource constrained (Memory & CPU >> 50%) environments. Occurs with: + Intel drivers, Compiz not enabled, Writer open only bug 745836 + binary ATI drivers, Compiz enabled, Calc open only bug 799047 WORKAROUND: Use Gnumeric. apt-cache policy gnumeric gnumeric: Installed: 1.10.13-1ubuntu1 Candidate: 1.10.13-1ubuntu1 Version table: *** 1.10.13-1ubuntu1 0 500 http://us.archive.ubuntu.com/ubuntu/ natty/universe i386 Packages 100 /var/lib/dpkg/status ProblemType: Crash DistroRelease: Ubuntu 11.04 Package: libreoffice-core 1:3.3.2-1ubuntu2 ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38 Uname: Linux 2.6.38-7-generic i686 Architecture: i386 Date: Wed Mar 30 12:34:39 2011 Disassembly: => 0x100000: Cannot access memory at address 0x100000 EcryptfsInUse: Yes ExecutablePath: /usr/lib/libreoffice/program/soffice.bin ProcCmdline: /usr/lib/libreoffice/program/soffice.bin -writer -splash-pipe=5 ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash SegvAnalysis: Segfault happened at: 0x100000: Cannot access memory at address 0x100000 PC (0x00100000) not located in a known VMA region (needed executable region)! SegvReason: executing unknown VMA Signal: 11 SourcePackage: libreoffice StacktraceTop: ?? () cppu::throwException(com::sun::star::uno::Any const&) () from /usr/lib/libreoffice/program/../basis-link/program/../ure-link/lib/libuno_cppuhelpergcc3.so.3 ucbhelper::cancelCommandExecution(com::sun::star::ucb::IOErrorCode, com::sun::star::uno::Sequence<com::sun::star::uno::Any> const&, com::sun::star::uno::Reference<com::sun::star::ucb::XCommandEnvironment> const&, rtl::OUString const&, com::sun::star::uno::Reference<com::sun::star::ucb::XCommandProcessor> const&) () from /usr/lib/libreoffice/program/../basis-link/program/libucbhelper4gcc3.so ?? () from /usr/lib/libreoffice/program/../basis-link/program/libucpfile1.so ?? () from /usr/lib/libreoffice/program/../basis-link/program/libucpfile1.so Title: soffice.bin crashed with SIGSEGV in cppu::throwException() UpgradeStatus: Upgraded to natty on 2011-03-29 (0 days ago) UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare To manage notifications about this bug go to: https://bugs.launchpad.net/df-libreoffice/+bug/745836/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
