Re: toolchain/52799 (gdb can't debug live threaded processes)

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR toolchain/52799; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: toolchain/52799 (gdb can't debug live threaded processes)
Date: Wed, 27 Dec 2017 20:16:27 +0100

 --RASg3xLB4tUQ4RcS
 Content-Type: text/plain; charset=us-ascii
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 Just try:
 
  > firefox &
  > gdb -p ` pgrep firefox `
 
 or gdb -p $( pgrep firefox ) ;-)
 
 then let gdb continue, do anything in firefox and quit it gracefully.
 
 A typescript of my run is attached.
 
 This used to work a lot better (no spurious "stopped" signals) and I am
 not sure the SIGSEGV is for real or induced by broken debugger interaction.
 There is a real SIGSEGV when terminating firefox, but I don't get that
 far within gdb.
 
 Martin
 
 --RASg3xLB4tUQ4RcS
 Content-Type: text/plain; charset=us-ascii
 Content-Disposition: attachment; filename=typescript
 Content-Transfer-Encoding: quoted-printable
 
 Script started on Wed Dec 27 20:09:33 2017
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 [/tmp] martin@night-owl > gdb -p =1B[27G=1B[Kpgrep firefox=0D=0D
 16333=0D
 [/tmp] martin@night-owl > gdb -p `pgrep firefox`=0D=0D
 =1B[?1034hGNU gdb (GDB) 8.0.1=0D
 Copyright (C) 2017 Free Software Foundation, Inc.=0D
 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.htm=
 l>=0D
 This is free software: you are free to change and redistribute it.=0D
 There is NO WARRANTY, to the extent permitted by law.  Type "show copying"=
 =0D
 and "show warranty" for details.=0D
 This GDB was configured as "x86_64--netbsd".=0D
 Type "show configuration" for configuration details.=0D
 For bug reporting instructions, please see:=0D
 <http://www.gnu.org/software/gdb/bugs/>.=0D
 Find the GDB manual and other documentation resources online at:=0D
 <http://www.gnu.org/software/gdb/documentation/>.=0D
 For help, type "help".=0D
 Type "apropos word" to search for commands related to "word".=0D
 Attaching to process 16333=0D
 Reading symbols from /usr/pkgobj/www/firefox/work/build/dist/bin/./firefox.=
 =2E.done.=0D
 [New LWP 67 of process 16333]=0D
 [New LWP 65 of process 16333]=0D
 [New LWP 62 of process 16333]=0D
 [New LWP 61 of process 16333]=0D
 [New LWP 58 of process 16333]=0D
 [New LWP 57 of process 16333]=0D
 [New LWP 54 of process 16333]=0D
 [New LWP 53 of process 16333]=0D
 [New LWP 52 of process 16333]=0D
 [New LWP 51 of process 16333]=0D
 [New LWP 50 of process 16333]=0D
 [New LWP 49 of process 16333]=0D
 [New LWP 48 of process 16333]=0D
 [New LWP 47 of process 16333]=0D
 [New LWP 46 of process 16333]=0D
 [New LWP 45 of process 16333]=0D
 [New LWP 44 of process 16333]=0D
 [New LWP 43 of process 16333]=0D
 [New LWP 36 of process 16333]=0D
 [New LWP 35 of process 16333]=0D
 [New LWP 34 of process 16333]=0D
 [New LWP 33 of process 16333]=0D
 [New LWP 30 of process 16333]=0D
 [New LWP 29 of process 16333]=0D
 [New LWP 28 of process 16333]=0D
 [New LWP 25 of process 16333]=0D
 [New LWP 24 of process 16333]=0D
 [New LWP 23 of process 16333]=0D
 [New LWP 22 of process 16333]=0D
 [New LWP 21 of process 16333]=0D
 [New LWP 20 of process 16333]=0D
 [New LWP 19 of process 16333]=0D
 [New LWP 18 of process 16333]=0D
 [New LWP 16 of process 16333]=0D
 [New LWP 15 of process 16333]=0D
 [New LWP 14 of process 16333]=0D
 [New LWP 13 of process 16333]=0D
 [New LWP 12 of process 16333]=0D
 [New LWP 11 of process 16333]=0D
 [New LWP 10 of process 16333]=0D
 [New LWP 9 of process 16333]=0D
 [New LWP 8 of process 16333]=0D
 [New LWP 7 of process 16333]=0D
 [New LWP 6 of process 16333]=0D
 [New LWP 5 of process 16333]=0D
 [New LWP 4 of process 16333]=0D
 [New LWP 3 of process 16333]=0D
 [New LWP 2 of process 16333]=0D
 [New LWP 1 of process 16333]=0D
 Reading symbols from /usr/lib/libpthread.so.1...Reading symbols from /usr/l=
 ibdata/debug//usr/lib/libpthread.so.1.3.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/libstdc++.so.8...Reading symbols from /usr/li=
 bdata/debug//usr/lib/libstdc++.so.8.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/libm.so.0...Reading symbols from /usr/libdata=
 /debug//usr/lib/libm.so.0.12.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/libgcc_s.so.1...Reading symbols from /usr/lib=
 data/debug//usr/lib/libgcc_s.so.1.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/libc.so.12...Reading symbols from /usr/libdat=
 a/debug//usr/lib/libc.so.12.209.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkgobj/www/firefox/work/build/dist/bin/liblgpllib=
 s.so...done.=0D
 Reading symbols from /usr/pkgobj/www/firefox/work/build/dist/bin/libmozsqli=
 te3.so...done.=0D
 Reading symbols from /usr/pkgobj/www/firefox/work/build/dist/bin/libmozgtk.=
 so...done.=0D
 Reading symbols from /usr/pkg/lib/libgtk-3.so.0...(no debugging symbols fou=
 nd)...done.=0D
 Reading symbols from /usr/pkg/lib/libgdk-3.so.0...(no debugging symbols fou=
 nd)...done.=0D
 Reading symbols from /usr/X11R7/lib/libXinerama.so.2...Reading symbols from=
  /usr/libdata/debug//usr/X11R7/lib/libXinerama.so.2.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libXrandr.so.3...Reading symbols from /=
 usr/libdata/debug//usr/X11R7/lib/libXrandr.so.3.2.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libXcursor.so.2...Reading symbols from =
 /usr/libdata/debug//usr/X11R7/lib/libXcursor.so.2.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkg/lib/libpangocairo-1.0.so.0...(no debugging sy=
 mbols found)...done.=0D
 Reading symbols from /usr/X11R7/lib/libXcomposite.so.2...Reading symbols fr=
 om /usr/libdata/debug//usr/X11R7/lib/libXcomposite.so.2.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libXdamage.so.2...Reading symbols from =
 /usr/libdata/debug//usr/X11R7/lib/libXdamage.so.2.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libXfixes.so.4...Reading symbols from /=
 usr/libdata/debug//usr/X11R7/lib/libXfixes.so.4.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkg/lib/libcairo-gobject.so.2...(no debugging sym=
 bols found)...done.=0D
 Reading symbols from /usr/pkg/lib/libcairo.so.2...(no debugging symbols fou=
 nd)...done.=0D
 Reading symbols from /usr/X11R7/lib/libpixman-1.so.2...Reading symbols from=
  /usr/libdata/debug//usr/X11R7/lib/libpixman-1.so.2.2.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libxcb-shm.so.0...Reading symbols from =
 /usr/libdata/debug//usr/X11R7/lib/libxcb-shm.so.0.1.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libxcb.so.2...Reading symbols from /usr=
 /libdata/debug//usr/X11R7/lib/libxcb.so.2.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libxcb-render.so.0...Reading symbols fr=
 om /usr/libdata/debug//usr/X11R7/lib/libxcb-render.so.0.1.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libXrender.so.2...Reading symbols from =
 /usr/libdata/debug//usr/X11R7/lib/libXrender.so.2.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libXext.so.7...Reading symbols from /us=
 r/libdata/debug//usr/X11R7/lib/libXext.so.7.1.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/librt.so.1...Reading symbols from /usr/libdat=
 a/debug//usr/lib/librt.so.1.1.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkg/lib/libgdk_pixbuf-2.0.so.0...(no debugging sy=
 mbols found)...done.=0D
 Reading symbols from /usr/pkg/lib/libpng16.so.16...(no debugging symbols fo=
 und)...done.=0D
 Reading symbols from /usr/pkg/lib/libatk-bridge-2.0.so.0...(no debugging sy=
 mbols found)...done.=0D
 Reading symbols from /usr/pkg/lib/libatk-1.0.so.0...(no debugging symbols f=
 ound)...done.=0D
 Reading symbols from /usr/pkg/lib/libatspi.so.0...(no debugging symbols fou=
 nd)...done.=0D
 Reading symbols from /usr/X11R7/lib/libX11.so.7...Reading symbols from /usr=
 /libdata/debug//usr/X11R7/lib/libX11.so.7.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libXtst.so.7...Reading symbols from /us=
 r/libdata/debug//usr/X11R7/lib/libXtst.so.7.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libXi.so.7...Reading symbols from /usr/=
 libdata/debug//usr/X11R7/lib/libXi.so.7.1.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkg/lib/libdbus-1.so.3...(no debugging symbols fo=
 und)...done.=0D
 Reading symbols from /usr/lib/libexecinfo.so.0...Reading symbols from /usr/=
 libdata/debug//usr/lib/libexecinfo.so.0.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkg/lib/libepoxy.so.0...(no debugging symbols fou=
 nd)...done.=0D
 Reading symbols from /usr/pkg/lib/libpangoft2-1.0.so.0...(no debugging symb=
 ols found)...done.=0D
 Reading symbols from /usr/pkg/lib/libharfbuzz.so.0...(no debugging symbols =
 found)...done.=0D
 Reading symbols from /usr/pkg/lib/libpango-1.0.so.0...(no debugging symbols=
  found)...done.=0D
 Reading symbols from /usr/pkg/lib/libgthread-2.0.so.0...(no debugging symbo=
 ls found)...done.=0D
 Reading symbols from /usr/X11R7/lib/libfreetype.so.18...Reading symbols fro=
 m /usr/libdata/debug//usr/X11R7/lib/libfreetype.so.18.0.13.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/libbz2.so.1...Reading symbols from /usr/libda=
 ta/debug//usr/lib/libbz2.so.1.1.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libfontconfig.so.2...Reading symbols fr=
 om /usr/libdata/debug//usr/X11R7/lib/libfontconfig.so.2.3.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkg/lib/libgio-2.0.so.0...(no debugging symbols f=
 ound)...done.=0D
 Reading symbols from /usr/pkg/lib/libgmodule-2.0.so.0...(no debugging symbo=
 ls found)...done.=0D
 Reading symbols from /usr/lib/libz.so.1...Reading symbols from /usr/libdata=
 /debug//usr/lib/libz.so.1.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkg/lib/libgobject-2.0.so.0...(no debugging symbo=
 ls found)...done.=0D
 Reading symbols from /usr/pkg/lib/libffi.so.6...(no debugging symbols found=
 )...done.=0D
 Reading symbols from /usr/pkg/lib/libglib-2.0.so.0...(no debugging symbols =
 found)...done.=0D
 Reading symbols from /usr/pkg/lib/libpcre.so.1...(no debugging symbols foun=
 d)...done.=0D
 Reading symbols from /usr/lib/libintl.so.1...Reading symbols from /usr/libd=
 ata/debug//usr/lib/libintl.so.1.1.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libXau.so.7...Reading symbols from /usr=
 /libdata/debug//usr/X11R7/lib/libXau.so.7.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libXdmcp.so.7...Reading symbols from /u=
 sr/libdata/debug//usr/X11R7/lib/libXdmcp.so.7.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/libelf.so.2...Reading symbols from /usr/libda=
 ta/debug//usr/lib/libelf.so.2.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/libexpat.so.2...Reading symbols from /usr/lib=
 data/debug//usr/lib/libexpat.so.2.3.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkgobj/www/firefox/work/build/dist/bin/libxul.so.=
 =2E.done.=0D
 Reading symbols from /usr/pkg/lib/libicui18n.so.60...(no debugging symbols =
 found)...done.=0D
 Reading symbols from /usr/pkg/lib/libicuuc.so.60...(no debugging symbols fo=
 und)...done.=0D
 Reading symbols from /usr/pkg/lib/libicudata.so.60...(no debugging symbols =
 found)...done.=0D
 Reading symbols from /usr/pkg/lib/nspr/libplds4.so...(no debugging symbols =
 found)...done.=0D
 Reading symbols from /usr/pkg/lib/nspr/libplc4.so...(no debugging symbols f=
 ound)...done.=0D
 Reading symbols from /usr/pkg/lib/nspr/libnspr4.so...(no debugging symbols =
 found)...done.=0D
 Reading symbols from /usr/pkg/lib/nss/libnss3.so...(no debugging symbols fo=
 und)...done.=0D
 Reading symbols from /usr/pkg/lib/nss/libsmime3.so...(no debugging symbols =
 found)...done.=0D
 Reading symbols from /usr/pkg/lib/nss/libssl3.so...(no debugging symbols fo=
 und)...done.=0D
 Reading symbols from /usr/pkg/lib/nss/libsoftokn3.so...(no debugging symbol=
 s found)...done.=0D
 Reading symbols from /usr/pkg/lib/nss/libnssutil3.so...(no debugging symbol=
 s found)...done.=0D
 Reading symbols from /usr/pkg/lib/libjpeg.so.9...(no debugging symbols foun=
 d)...done.=0D
 Reading symbols from /usr/lib/libevent.so.4...Reading symbols from /usr/lib=
 data/debug//usr/lib/libevent.so.4.1.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkg/lib/libvpx.so.0...(no debugging symbols found=
 )...done.=0D
 Reading symbols from /usr/lib/libossaudio.so.1...Reading symbols from /usr/=
 libdata/debug//usr/lib/libossaudio.so.1.1.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkg/lib/libdbus-glib-1.so.2...(no debugging symbo=
 ls found)...done.=0D
 Reading symbols from /usr/X11R7/lib/libX11-xcb.so.1...Reading symbols from =
 /usr/libdata/debug//usr/X11R7/lib/libX11-xcb.so.1.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libXt.so.7...Reading symbols from /usr/=
 libdata/debug//usr/X11R7/lib/libXt.so.7.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/libsqlite3.so.1...Reading symbols from /usr/l=
 ibdata/debug//usr/lib/libsqlite3.so.1.3.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libSM.so.7...Reading symbols from /usr/=
 libdata/debug//usr/X11R7/lib/libSM.so.7.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/libICE.so.7...Reading symbols from /usr=
 /libdata/debug//usr/X11R7/lib/libICE.so.7.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/i18n/libiconv_std.so.5.0...Reading symbols fr=
 om /usr/libdata/debug//usr/lib/i18n/libiconv_std.so.5.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/i18n/libUTF1632.so.5.0...Reading symbols from=
  /usr/libdata/debug//usr/lib/i18n/libUTF1632.so.5.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/i18n/libmapper_std.so.5.0...Reading symbols f=
 rom /usr/libdata/debug//usr/lib/i18n/libmapper_std.so.5.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/X11R7/lib/X11/locale/lib/common/xlcDef.so.2...Rea=
 ding symbols from /usr/libdata/debug//usr/X11R7/lib/X11/locale/lib/common/x=
 lcDef.so.2.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/lib/i18n/libUTF8.so.5.0...Reading symbols from /u=
 sr/libdata/debug//usr/lib/i18n/libUTF8.so.5.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkg/lib/gio/modules/libgvfsdbus.so...(no debuggin=
 g symbols found)...done.=0D
 Reading symbols from /usr/pkg/lib/libgvfscommon.so.0...(no debugging symbol=
 s found)...done.=0D
 Reading symbols from /usr/lib/libutil.so.7...Reading symbols from /usr/libd=
 ata/debug//usr/lib/libutil.so.7.24.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkg/lib/gdk-pixbuf-2.0/2.10.0/loaders/libpixbuflo=
 ader-png.so...(no debugging symbols found)...done.=0D
 Reading symbols from /usr/pkg/lib/gdk-pixbuf-2.0/2.10.0/loaders/libpixbuflo=
 ader-svg.so...(no debugging symbols found)...done.=0D
 Reading symbols from /usr/pkg/lib/librsvg-2.so.2...(no debugging symbols fo=
 und)...done.=0D
 Reading symbols from /usr/pkg/lib/libcroco-0.6.so.3...(no debugging symbols=
  found)...done.=0D
 Reading symbols from /usr/pkg/lib/libxml2.so.2...(no debugging symbols foun=
 d)...done.=0D
 Reading symbols from /usr/lib/liblzma.so.2...Reading symbols from /usr/libd=
 ata/debug//usr/lib/liblzma.so.2.0.debug...done.=0D
 done.=0D
 Reading symbols from /usr/pkg/lib/nss/libnssdbm3.so...(no debugging symbols=
  found)...done.=0D
 Reading symbols from /usr/pkg/lib/nss/libfreebl3.so...(no debugging symbols=
  found)...done.=0D
 Reading symbols from /usr/pkg/lib/nss/libnssckbi.so...(no debugging symbols=
  found)...done.=0D
 Reading symbols from /usr/pkg/lib/gio/modules/libgioremote-volume-monitor.s=
 o...(no debugging symbols found)...done.=0D
 Reading symbols from /usr/libexec/ld.elf_so...Reading symbols from /usr/lib=
 data/debug//usr/libexec/ld.elf_so.debug...done.=0D
 done.=0D
 [Switching to LWP 68 of process 16333]=0D
 0x00007f7ff683e8ba in read () from /usr/lib/libc.so.12=0D
 (gdb) c=0D
 Continuing.=0D
 =0D
 Thread 1 stopped.=0D
 0x00007f7ff683e8ba in read () from /usr/lib/libc.so.12=0D
 ptrace: No such process.=0D
 (gdb) c=0D
 Continuing.=0D
 [New LWP 115 of process 16333]=0D
 [New LWP 114 of process 16333]=0D
 [New LWP 113 of process 16333]=0D
 [New LWP 81 of process 16333]=0D
 [New LWP 74 of process 16333]=0D
 [New LWP 73 of process 16333]=0D
 [New LWP 71 of process 16333]=0D
 [New LWP 70 of process 16333]=0D
 [New LWP 69 of process 16333]=0D
 =0D
 Thread 51 stopped.=0D
 [Switching to LWP 115 of process 16333]=0D
 0x00007f7ff68a974a in ___lwp_park60 () from /usr/lib/libc.so.12=0D
 ptrace: No such process.=0D
 (gdb) c=0D
 Continuing.=0D
 [New LWP 116 of process 16333]=0D
 =0D
 Thread 60 stopped.=0D
 [Switching to LWP 116 of process 16333]=0D
 0x00007f7ff68a974a in ___lwp_park60 () from /usr/lib/libc.so.12=0D
 ptrace: No such process.=0D
 (gdb) c=0D
 Continuing.=0D
 [New LWP 117 of process 16333]=0D
 =0D
 Thread 61 stopped.=0D
 [Switching to LWP 117 of process 16333]=0D
 0x00007f7ff68a974a in ___lwp_park60 () from /usr/lib/libc.so.12=0D
 ptrace: No such process.=0D
 (gdb) c=0D
 Continuing.=0D
 =0D
 Thread 51 stopped.=0D
 [Switching to LWP 115 of process 16333]=0D
 0x00007f7ff68a974a in ___lwp_park60 () from /usr/lib/libc.so.12=0D
 ptrace: No such process.=0D
 (gdb) c=0D
 Continuing.=0D
 [New LWP 119 of process 16333]=0D
 [New LWP 120 of process 16333]=0D
 =0D
 Thread 63 stopped.=0D
 [Switching to LWP 120 of process 16333]=0D
 0x00007f7ff68a974a in ___lwp_park60 () from /usr/lib/libc.so.12=0D
 ptrace: No such process.=0D
 (gdb) c=0D
 Continuing.=0D
 [New LWP 122 of process 16333]=0D
 [New LWP 121 of process 16333]=0D
 =0D
 Thread 64 stopped.=0D
 [Switching to LWP 122 of process 16333]=0D
 0x00007f7ff68a974a in ___lwp_park60 () from /usr/lib/libc.so.12=0D
 ptrace: No such process.=0D
 (gdb) c=0D
 Continuing.=0D
 =0D
 Thread 64 stopped.=0D
 0x00007f7ff68a974a in ___lwp_park60 () from /usr/lib/libc.so.12=0D
 ptrace: No such process.=0D
 (gdb) c=0D
 Continuing.=0D
 [New LWP 124 of process 16333]=0D
 =0D
 Thread 66 received signal SIGTRAP, Trace/breakpoint trap.=0D
 [Switching to LWP 124 of process 16333]=0D
 0x00007f7ff683e97a in _sys___nanosleep50 () from /usr/lib/libc.so.12=0D
 (gdb) c=0D
 Continuing.=0D
 =0D
 Thread 66 received signal SIGSEGV, Segmentation fault.=0D
 0x00007f7ff683e97a in _sys___nanosleep50 () from /usr/lib/libc.so.12=0D
 (gdb) bt=0D
 #0  0x00007f7ff683e97a in _sys___nanosleep50 () from /usr/lib/libc.so.12=0D
 #1  0x00007f7ff7807287 in __nanosleep50 (rqtp=3Drqtp@entry=3D0x7f7fc25dff80=
 , =0D
     rmtp=3Drmtp@entry=3D0x0) at /usr/src/lib/libpthread/pthread_cancelstub.=
 c:398=0D
 #2  0x00007f7fe6ac496c in mozilla::(anonymous namespace)::RunWatchdog (=0D
     arg=3D<optimized out>)=0D
     at /usr/pkgobj/www/firefox/work/firefox-57.0.1/toolkit/components/termi=
 nator/nsTerminator.cpp:155=0D
 #3  0x00007f7fe0a2654b in _pt_root () from /usr/pkg/lib/nspr/libnspr4.so=0D
 #4  0x00007f7ff780b8b5 in pthread__create_tramp (cookie=3D0x7f7fc70ee000)=0D
     at /usr/src/lib/libpthread/pthread.c:593=0D
 #5  0x00007f7ff688d0c0 in ?? () from /usr/lib/libc.so.12=0D
 #6  0x0000000000000000 in ?? ()=0D
 (gdb) c=0D
 Continuing.=0D
 =0D
 Thread 66 received signal SIGSEGV, Segmentation fault.=0D
 0x00007f7ff683e97a in _sys___nanosleep50 () from /usr/lib/libc.so.12=0D
 (gdb) c=0D
 Continuing.=0D
 =0D
 Program terminated with signal SIGSEGV, Segmentation fault.=0D
 The program no longer exists.=0D
 (gdb) quit=0D
 [/tmp] martin@night-owl > ^D=08=08exit=0D
 
 Script done on Wed Dec 27 20:13:19 2017
 
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