Hi Bernhard, you seem to be triaging a lot of segfault bugs recently ;-)
>Usually when a segfault happens in 'dmesg' output should >appear two lines about this event. Maybe you could forward >these to the report too. We debugged this together, as it just happened when we were discussing the bugreport again. Interestingly enough, there is nothing related in dmesg (last entry a couple of minutes after boot). >If it is possible to install systemd-coredump a backtrace >would be automatically added to the journal, which could >be viewed by 'journalctl --no-pager'. We installed systemd-coredump. >[1] https://wiki.debian.org/HowToGetABacktrace#Installing_the_debugging_symbols We installed all debug symbol packages (from the goodies) and gdb-minimal (or does it need gdb full?) and will see when it happens next. Some more ideas: • it only happens on a Tuxedo laptop, but not on a Mac mini • while it happened, VMs (libvirt/virt-manager/SPICE-QXL) were in use Display is: lspci… 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07) … and lshw… *-display description: VGA compatible controller product: Intel Corporation vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 07 width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:127 memory:db000000-dbffffff memory:90000000-9fffffff ioport:f000(size=64) memory:c0000-dffff As for the X video subsystem in use, xserver-xorg-video-all is installed and I don’t know how to find out the one in actual use, but the following X modules are loaded: [ 64.097] (II) LoadModule: "glx" [ 64.106] (II) LoadModule: "modesetting" [ 64.108] (II) LoadModule: "fbdev" [ 64.109] (II) LoadModule: "vesa" [ 64.129] (II) LoadModule: "fbdevhw" [ 64.130] (II) LoadModule: "glamoregl" [ 64.251] (II) LoadModule: "fb" [ 64.593] (II) LoadModule: "libinput" (This is just one more, fbdevhw, than my own laptop has.) I think it’s using KMS and no extra X driver. As to firmware, i915/kbl_dmc_ver1_04.bin (v1.4) is loaded, as are intel/ibt-12-16.ddc, intel/ibt-12-16.sfi, and others (iwlwifi, Blåtand, r8169) that are unrelated. Not sure how much this helps… bye, //mirabilos -- 15:39⎜«mika:#grml» mira|AO: "mit XFree86® wär’ das nicht passiert" - muhaha 15:48⎜<thkoehler:#grml> also warum machen die xorg Jungs eigentlich alles kaputt? :) 15:49⎜<novoid:#grml> thkoehler: weil sie als Kinder nie den gebauten Turm selber umschmeissen durften? -- ~/.Xmodmap wonders…