.o0O0o.  apt list --installed  | grep firefox

WARNING: apt does not have a stable CLI interface. Use with caution in
scripts.

firefox/bionic-updates,bionic-security,now 63.0+build2-0ubuntu0.18.04.2 ppc64el 
[installed]
firefox-dbg/bionic-updates,bionic-security,now 63.0+build2-0ubuntu0.18.04.2 
ppc64el [installed]
 .o0O0o.  
 .o0O0o.  firefox -g -d gdb
GNU gdb (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "powerpc64le-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/lib/firefox/firefox...Reading symbols from 
/usr/lib/debug/.build-id/28/cf7b63ae3f258e77cc015838854d9059658fb9.debug...done.
done.
(gdb) handle SIG33 noprint nostop
Signal        Stop      Print   Pass to program Description
SIG33         No        No      Yes             Real-time event 33
(gdb) run
Starting program: /usr/lib/firefox/firefox 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/powerpc64le-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
RedBlackTree<arena_chunk_map_t, ArenaAvailTreeTrait>::TreeNode::SetColor 
(aColor=Red, this=<synthetic pointer>) at 
/build/firefox-JAACWQ/firefox-63.0+build2/memory/build/rb.h:203
203     /build/firefox-JAACWQ/firefox-63.0+build2/memory/build/rb.h: No such 
file or directory.
(gdb) backtrace
#0  0x000000010000d600 in RedBlackTree<arena_chunk_map_t, 
ArenaAvailTreeTrait>::TreeNode::SetColor(NodeColor) (aColor=Red, 
this=<synthetic pointer>) at 
/build/firefox-JAACWQ/firefox-63.0+build2/memory/build/rb.h:203
#1  0x000000010000d600 in RedBlackTree<arena_chunk_map_t, 
ArenaAvailTreeTrait>::MoveRedRight(RedBlackTree<arena_chunk_map_t, 
ArenaAvailTreeTrait>::TreeNode) (this=<optimized out>, aNode=...)
    at /build/firefox-JAACWQ/firefox-63.0+build2/memory/build/rb.h:668
#2  0x000000010000d818 in RedBlackTree<arena_chunk_map_t, 
ArenaAvailTreeTrait>::Remove(RedBlackTree<arena_chunk_map_t, 
ArenaAvailTreeTrait>::TreeNode) (this=0x7ffff7700080, aNode=...)
    at /build/firefox-JAACWQ/firefox-63.0+build2/memory/build/rb.h:562
#3  0x000000010000f024 in RedBlackTree<arena_chunk_map_t, 
ArenaAvailTreeTrait>::Remove(arena_chunk_map_t*) (aNode=0x7ffff4a00038, 
this=0x7ffff7700080) at 
/build/firefox-JAACWQ/firefox-63.0+build2/memory/build/rb.h:144
#4  0x000000010000f024 in arena_t::SplitRun(arena_run_t*, unsigned long, bool, 
bool) (this=0x7ffff7700000, aRun=0x7ffff4a10000, aSize=1048576, aLarge=false, 
aZero=<optimized out>)
    at 
/build/firefox-JAACWQ/firefox-63.0+build2/memory/build/mozjemalloc.cpp:2394
#5  0x000000010000f31c in arena_t::AllocRun(unsigned long, bool, bool) 
(this=0x7ffff7700000, aSize=1048576, aLarge=false, aZero=false) at 
/build/firefox-JAACWQ/firefox-63.0+build2/memory/build/mozjemalloc.cpp:2572
#6  0x0000000100011570 in arena_t::GetNonFullBinRun(arena_bin_t*) 
(this=<optimized out>, aBin=0x7ffff77008d8) at 
/build/firefox-JAACWQ/firefox-63.0+build2/memory/build/mozjemalloc.cpp:2822
#7  0x000000010001366c in arena_t::MallocSmall(unsigned long, bool) 
(aZero=true, aSize=<optimized out>, this=0x7ffff7700000) at 
/build/firefox-JAACWQ/firefox-63.0+build2/memory/build/mozjemalloc.cpp:2968
#8  0x000000010001366c in arena_t::Malloc(unsigned long, bool) (aZero=true, 
aSize=<optimized out>, this=0x7ffff7700000) at 
/build/firefox-JAACWQ/firefox-63.0+build2/memory/build/mozjemalloc.cpp:3025
#9  0x000000010001366c in BaseAllocator::calloc(unsigned long, unsigned long) 
(aSize=<optimized out>, aNum=<optimized out>, this=<synthetic pointer>) at 
/build/firefox-JAACWQ/firefox-63.0+build2/memory/build/mozjemalloc.cpp:4204
#10 0x000000010001366c in Allocator<MozJemallocBase>::calloc(unsigned long, 
unsigned long) (arg2=<optimized out>, arg1=<optimized out>) at 
/build/firefox-JAACWQ/firefox-63.0+build2/memory/build/malloc_decls.h:38
#11 0x000000010001366c in calloc(size_t, size_t) (arg1=<optimized out>, 
arg2=<optimized out>) at 
/build/firefox-JAACWQ/firefox-63.0+build2/memory/build/malloc_decls.h:38
#12 0x00007ffff571b8e0 in xcb_connect_to_fd () at 
/usr/lib/powerpc64le-linux-gnu/libxcb.so.1
#13 0x00007ffff572318c in xcb_connect_to_display_with_auth_info () at 
/usr/lib/powerpc64le-linux-gnu/libxcb.so.1
#14 0x00007ffff57239b0 in xcb_connect () at 
/usr/lib/powerpc64le-linux-gnu/libxcb.so.1
#15 0x00007ffff6586758 in _XConnectXCB () at 
/usr/lib/powerpc64le-linux-gnu/libX11.so.6
#16 0x00007ffff656db88 in XOpenDisplay () at 
/usr/lib/powerpc64le-linux-gnu/libX11.so.6
#17 0x00007ffff67be32c in  () at /usr/lib/powerpc64le-linux-gnu/libgdk-3.so.0
#18 0x00007ffff6771f68 in gdk_display_manager_open_display () at 
/usr/lib/powerpc64le-linux-gnu/libgdk-3.so.0
#19 0x00007ffff676efac in gdk_display_open () at 
/usr/lib/powerpc64le-linux-gnu/libgdk-3.so.0
#20 0x00007ffff2501664 in XREMain::XRE_mainStartup(bool*) (this=0x7fffffffdc78, 
aExitFlag=0x7fffffffdbf8) at 
/build/firefox-JAACWQ/firefox-63.0+build2/toolkit/xre/nsAppRunner.cpp:4010
#21 0x00007ffff25043bc in XREMain::XRE_mainStartup(bool*) 
(aExitFlag=0x7fffffffdbf8, this=0x7fffffffdc78) at 
/build/firefox-JAACWQ/firefox-63.0+build2/obj-powerpc64le-linux-gnu/dist/include/nsCOMPtr.h:313
#22 0x00007ffff25043bc in XREMain::XRE_main(int, char**, 
mozilla::BootstrapConfig const&) (this=0x7fffffffdc78, argc=1, 
argv=0x7ffffffff368, aConfig=...) at 
/build/firefox-JAACWQ/firefox-63.0+build2/toolkit/xre/nsAppRunner.cpp:4912
#23 0x00007ffff25048e0 in XRE_main(int, char**, mozilla::BootstrapConfig 
const&) (argc=<optimized out>, argv=0x7ffffffff368, aConfig=...) at 
/build/firefox-JAACWQ/firefox-63.0+build2/toolkit/xre/nsAppRunner.cpp:5019
#24 0x00007ffff2506804 in mozilla::BootstrapImpl::XRE_main(int, char**, 
mozilla::BootstrapConfig const&) (this=<optimized out>, argc=<optimized out>, 
argv=<optimized out>, aConfig=...)
    at /build/firefox-JAACWQ/firefox-63.0+build2/toolkit/xre/Bootstrap.cpp:49
#25 0x0000000100006808 in do_main(int, char**, char**) (argc=<optimized out>, 
argv=0x7ffffffff368, envp=<optimized out>) at 
/build/firefox-JAACWQ/firefox-63.0+build2/browser/app/nsBrowserApp.cpp:233
#26 0x0000000100005e98 in main(int, char**, char**) (argc=<optimized out>, 
argv=0x7ffffffff368, envp=0x7ffffffff378) at 
/build/firefox-JAACWQ/firefox-63.0+build2/browser/app/nsBrowserApp.cpp:315
(gdb) 

--------------------------------------------------------------------------
I monitored the /build directory and never saw a firefox subdir there.  Don't 
know if that's important.

Also I apologize if I din't run the gdb with the appropriate commands.
I'll gladly run it however you direct to generate helpful output.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/1799993

Title:
  Firefox segfaults on ppc64le

Status in firefox package in Ubuntu:
  New

Bug description:
  $ uname -a
  Linux sams-voo-sandbox-bigbro 4.15.0-38-generic #41-Ubuntu SMP Wed Oct 10 
10:57:45 UTC 2018 ppc64le ppc64le ppc64le GNU/Linux

  $  lsb_release -rd
  Description:    Ubuntu 18.04.1 LTS
  Release:        18.04

  $ apt-cache policy firefox
  firefox:
    Installed: 62.0.3+build1-0ubuntu0.18.04.1
    Candidate: 62.0.3+build1-0ubuntu0.18.04.1
    Version table:
   *** 62.0.3+build1-0ubuntu0.18.04.1 500
          500 http://ports.ubuntu.com/ubuntu-ports bionic-updates/main ppc64el 
Packages
          500 http://ports.ubuntu.com/ubuntu-ports bionic-security/main ppc64el 
Packages
          100 /var/lib/dpkg/status
       59.0.2+build1-0ubuntu1 500
          500 http://ports.ubuntu.com/ubuntu-ports bionic/main ppc64el Packages

  $ firefox -v
  Mozilla Firefox 62.0.3

  $ firefox --safe-mode
  Segmentation fault

  $ firefox --headless
  *** You are running in headless mode.
  Segmentation fault

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