On Mon, Jun 12, 2023 at 04:17:18PM +0200, Peter N. M. Hansteen wrote: > On Mon, Jun 12, 2023 at 03:51:10PM +0200, Sebastien Marie wrote: > > On Mon, Jun 12, 2023 at 03:40:26PM +0200, Peter N. M. Hansteen wrote: > > > > > > [Mon Jun 12 15:28:27] peter@zaida:~$ ls -l *core > > > -rw------- 1 peter peter 1701245120 Jun 8 17:55 thunderbird.core > > > -rw------- 1 peter peter 2102496 Jun 12 15:25 xfce4-session.core > > > > thunderbird.core date is older, and I am unsure it is present in your > > .xsession. > > Yes, while that program has its own problems it is not really relevant to the > issue > at hand here. > > > But xfce4-session is a good candidate for Xorg terminaison. > > > > Could you extract a backtrace with egdb ? > > I got this, > > [Mon Jun 12 16:13:38] peter@zaida:~$ egdb /usr/local/bin/xfce4-session > xfce4-session.core > GNU gdb (GDB) 9.2 > Copyright (C) 2020 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 "x86_64-unknown-openbsd7.3". > 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/local/bin/xfce4-session... > (No debugging symbols found in /usr/local/bin/xfce4-session) > [New process 381396] > Core was generated by `xfce4-session'. > Program terminated with signal SIGILL, Illegal instruction. > #0 0x00000f09381e8660 in _start () > (gdb) bt > #0 0x00000f09381e8660 in _start () > (gdb) trace > Tracepoint 1 at 0xf09381e8660 > (gdb) > > with some instruction I might be able to extract more information. >
failing in _start is odd. it look like the binary wasn't build with cf-protection=branch, and the compiler has it since few weeks now (since 2023-04-26 exactly). Could you check the signature date of your package ? $ grep @digital-signature /var/db/pkg/xfce4-session-*/+CONTENTS @digital-signature signify2:2023-06-10T10:18:49Z:external it could be a good indication for the build date. In gdb, could you get the 'disassemble' output (beware, it could be long) ? I am interested to the current instructions (to ensure that it is failing in a jmp). It could permit to check that the backtrace is right. Thanks. -- Sebastien Marie
