Created attachment 373074 [details] Ubuntu crash log from segfault, including backtrace and core dump. GnuCash is installed on a Ubuntu 18.04 machine from the sicklylife/gnucash ppa. It start and runs normally from the local machine. However, when accessing the machine from a windows machine using a ssh client with X forwarding (MobaXterm), GnuCash will segfault upon startup. SegvAnalysis: Segfault happened at: 0x7f9821a0a9ce <g_type_check_instance_is_a+62>: testb $0x4,0x16(%rdx) PC (0x7f9821a0a9ce) ok source "$0x4" ok destination "0x16(%rdx)" (0x5441554156415756) not located in a known VMA region (needed writable region)! The second attempt will start and work correctly. A workaround is to start a alternate X program (such as evince), then start gnucash. Attaching the Ubuntu crash log for backtrace and core dump.
Try starting GnuCash like this from your ssh session: GDK_BACKEND=X11 /path/to/gnucash
(In reply to John Ralls from comment #1) > Try starting GnuCash like this from your ssh session: > GDK_BACKEND=X11 /path/to/gnucash As requested: ----------------------------------------- jesse@jesse-desktop:~$ GDK_BACKEND=X11 /usr/bin/gnucash Error: could not initialize graphical user interface and option add-price-quotes was not set. Perhaps you need to set the $DISPLAY environment variable ? Run '/usr/bin/gnucash --help' to see a full list of available command line options. Adding a semi-colon after setting the shell variable (this may be what was requested?) give the same behavior (starts correctly on second try). -------------------------------- jesse@jesse-desktop:~$ echo $GDK_BACKEND jesse@jesse-desktop:~$ GDK_BACKEND=X11; /usr/bin/gnucash Segmentation fault (core dumped) jesse@jesse-desktop:~$ echo $GDK_BACKEND X11 jesse@jesse-desktop:~$ GDK_BACKEND=X11; /usr/bin/gnucash Found Finance::Quote version 1.47
No, I meant without a semicolon. That adds the environment variable to to the subsequent command. With the semicolon it becomes a separate command and without exporting it it becomes a no-op. I.e., either GDK_BACKEND=X11 /usr/bin/gnucash or export GDK_BACKEND=X11; /usr/bin/gnucash The error about $DISPLAY not being set is significant. It means that you don't have an X11 forwarding session established. I'm not finding anything helpful in a web search, perhaps you can ask Ubuntu support about how to get XWayland started and configured before trying to start your remote GnuCash session.
