deja-dup-monitor crashed with SIGSEGV

[Nikolay Pokhilchenko]

The system was subsequently upgraded by apt-get dist-upgrade during two or three month from Ubuntu 17.04LTS to the last available Bionic Beaver development branch. Had to upgrade due to some package I was unable to run under LTS and it was OK under newer distributives.
At a beginning of February 2018 I've started to get different crashes. Meanwhile, another operational system on the same laptop is OK, none crashes. The current report is about new type of a crash I've never seen before.

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: deja-dup 37.1-1fakesync1
ProcVersionSignature: Ubuntu 4.15.0-11.12-generic 4.15.5
Uname: Linux 4.15.0-11-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CrashCounter: 1
CurrentDesktop: ubuntu:GNOME
Date: Sun Mar 4 11:09:32 2018
ExecutablePath: /usr/lib/deja-dup/deja-dup-monitor
ProcCmdline: /usr/lib/deja-dup/deja-dup-monitor
SegvAnalysis:
 Segfault happened at: 0x7f38036c6588: movl $0x0,(%rax)
 PC (0x7f38036c6588) 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:
 () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
 __pthread_once_slow (once_control=0x7f380392e02c, init_routine=0x7f37fa783490 <__once_proxy>) at pthread_once.c:116
 Gigacage::ensureGigacage() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
 bmalloc::Heap::Heap(bmalloc::HeapKind, std::lock_guard<bmalloc::StaticMutex>&) () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
 bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::getSlowCase() () at /usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
Title: deja-dup-monitor crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip lpadmin microchip plugdev sambashare sudo

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1751460, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.