I closed the Xenial task since deja-dup in Xenial doesn't use ulimit. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to deja-dup in Ubuntu. https://bugs.launchpad.net/bugs/1751460
Title: [regression] deja-dup-monitor crashed with SIGSEGV in Gigacage::<lambda()>::operator() Status in Déjà Dup: Fix Released Status in WebKit: Confirmed Status in deja-dup package in Ubuntu: Fix Released Status in webkit2gtk package in Ubuntu: Invalid Status in deja-dup source package in Xenial: Invalid Status in deja-dup source package in Artful: Fix Released Status in deja-dup source package in Bionic: Fix Released Bug description: Impact ------ webkit2gtk 2.20 adds a new security feature called the Gigacage that uses an extremely large virtual memory address space (much larger than available physical memory). Deja Dup's monitor background service had "ulimit -v 1000000" (that's 1 GB) set as a workaround for a memory leak issue that the developer was unable to reproduce. After upgrading to the new webkit2gtk version, Deja Dup's monitor service will crash because of that virtual memory limit. Test Case --------- Install the deja-dup update. Install the webkit2gtk update from a PPA (not prepared yet). Log out. Log in. After a few minutes, check /var/crash/ for any Deja Dup crash reports. Regression Potential -------------------- This could reintroduce the memory leak bug, but otherwise this is a minimal fix. Even if that happens, it's better than the service refusing to run. Other Info ---------- https://errors.ubuntu.com/problem/27441b78823246dd5392ee29ac30546f6464289e ProblemType: Crash DistroRelease: Ubuntu 18.04 Package: deja-dup 37.1-1fakesync1 ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 Uname: Linux 4.15.0-10-generic x86_64 ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CrashCounter: 1 CurrentDesktop: GNOME Date: Sat Feb 24 14:30:47 2018 ExecutablePath: /usr/lib/deja-dup/deja-dup-monitor InstallationDate: Installed on 2017-12-27 (59 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018) ProcCmdline: /usr/lib/deja-dup/deja-dup-monitor ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash SegvAnalysis: Segfault happened at: 0x7ff1c3dda588: movl $0x0,(%rax) PC (0x7ff1c3dda588) ok source "$0x0" ok destination "(%rax)" (0xbbadbeef) not located in a known VMA region (needed writable region)! SegvReason: writing unknown VMA Signal: 11 SourcePackage: deja-dup StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18 __pthread_once_slow (once_control=0x7ff1c404202c, init_routine=0x7ff1baec0490 <__once_proxy>) at pthread_once.c:116 Gigacage::ensureGigacage() () from /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18 bmalloc::Heap::Heap(bmalloc::HeapKind, std::lock_guard<bmalloc::StaticMutex>&) () from /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18 bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::getSlowCase() () from /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18 Title: deja-dup-monitor crashed with SIGSEGV in __pthread_once_slow() UpgradeStatus: Upgraded to bionic on 2018-02-24 (0 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/deja-dup/+bug/1751460/+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
