Public bug reported:
I have two machines, the one with the console is running xubuntu-14.04
and i am trying to run x applications on my laptop which is running
xubuntu-16.04 beta (with all of the latest packages updated as of this
morning) they all crash.
i do an ssh -X into the laptop and then run emacs and it crashes with the
following stacktrace:
numenor:~(1) emacs
Fatal error 11: Segmentation fault
Backtrace:
emacs[0x503743]
emacs[0x4e9dbe]
emacs[0x5024fe]
emacs[0x502723]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x113d0)[0x7f5f38db43d0]
/lib/x86_64-linux-gnu/libc.so.6(__rawmemchr+0x1f)[0x7f5f38a6fb3f]
/lib/x86_64-linux-gnu/libc.so.6(+0x7cf22)[0x7f5f38a56f22]
/lib/x86_64-linux-gnu/libc.so.6(__isoc99_vsscanf+0x57)[0x7f5f38a45b67]
/lib/x86_64-linux-gnu/libc.so.6(__isoc99_sscanf+0x87)[0x7f5f38a45b07]
/usr/lib/x86_64-linux-gnu/libepoxy.so.0(epoxy_glx_version+0x42)[0x7f5f374cbd22]
/usr/lib/x86_64-linux-gnu/libgdk-3.so.0(+0x5d409)[0x7f5f3da1a409]
/usr/lib/x86_64-linux-gnu/libgdk-3.so.0(+0x5d72a)[0x7f5f3da1a72a]
/usr/lib/x86_64-linux-gnu/libgdk-3.so.0(+0x65e3e)[0x7f5f3da22e3e]
/usr/lib/x86_64-linux-gnu/libgdk-3.so.0(+0x62db6)[0x7f5f3da1fdb6]
/usr/lib/x86_64-linux-gnu/libgdk-3.so.0(+0x55165)[0x7f5f3da12165]
/usr/lib/x86_64-linux-gnu/libgdk-3.so.0(gdk_display_manager_open_display+0xd6)[0x7f5f3d9ec5e6]
/usr/lib/x86_64-linux-gnu/libgtk-3.so.0(gtk_init_check+0x20)[0x7f5f3dea93c0]
/usr/lib/x86_64-linux-gnu/libgtk-3.so.0(gtk_init+0x9)[0x7f5f3dea93f9]
emacs[0x4c81c3]
emacs[0x4ca931]
emacs[0x55d9bd]
emacs[0x593083]
emacs[0x55d44f]
emacs[0x55d7eb]
emacs[0x593083]
emacs[0x55d7eb]
emacs[0x55cefc]
emacs[0x56030e]
emacs[0x59448f]
emacs[0x55d7eb]
emacs[0x593083]
emacs[0x55c798]
emacs[0x55cb41]
emacs[0x560504]
emacs[0x55bc47]
emacs[0x4ea206]
emacs[0x55bb2b]
emacs[0x4ee84f]
emacs[0x4eeba8]
emacs[0x418619]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f5f389fa830]
...
Segmentation fault (core dumped)
I did install emacs24 debug package, but this appears to be the best
that i can get. Maybe that is another bug.
also, if i try to run any remote x application (such as update-manager or
synaptic), they also fail. They do bring up the bug report window on the
laptop. So i think that this is less of a problem with emacs and more likely
a problem with the x libraries on the laptop.
Note that this does not appear to be a security issue where the -X just is not
working properly. if i ssh into the laptop without -X it works properly in
that it brings up emacs in the terminal window.
I also have no problems at all getting emacs to run remotely for all of my
other remote linux machines, so i think that the problem is with the laptop
running xubuntu 16.04 beta.
the console machine is
moria:~(1) lsb_release -rd
Description: Ubuntu 14.04.4 LTS
Release: 14.04
and the laptop is
numenor:~(4) lsb_release -rd
Description: Ubuntu 16.04 LTS
Release: 16.04
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1570950
Title:
remote x applications crash on xubuntu 16.04 beta
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