Hi, compiled the latest staging kernel on my xubuntu laptop. It starts fine but I cannot start my firefox anymore. This happens only with kernel 6.8-rcx. With kernel 6.7 no issue at all. Find logs below. Found in some forum that it is fixed in some later rc on an other tree. Tried to find this patch series that fixes this. But was not able to. But anyway is this a kernel issue? Do the kernel developers care? Thanks for your support. Bye Philipp mr00000@mr00000-dell:~$ firefox snap-update-ns killed by signal 11 mr00000@mr00000-dell:~$ sudo dmesg -c [ 281.781051] audit: type=1400 audit(1707558512.842:62): apparmor="DENIED" operation="capable" class="cap" profile="/snap/snapd/20671/usr/lib/snapd/snap-confine" pid=1566 comm="snap-confine" capability=12 capname="net_admin" [ 281.781059] audit: type=1400 audit(1707558512.842:63): apparmor="DENIED" operation="capable" class="cap" profile="/snap/snapd/20671/usr/lib/snapd/snap-confine" pid=1566 comm="snap-confine" capability=38 capname="perfmon" [ 281.787553] audit: type=1400 audit(1707558512.846:64): apparmor="DENIED" operation="file_mmap" class="file" profile="/snap/snapd/20671/usr/lib/snapd/snap-confine" name="/snap/snapd/20671/usr/lib/snapd/snap-update-ns" pid=1599 comm="5" requested_mask="m" denied_mask="m" fsuid=0 ouid=0 syslog Feb 10 10:48:54 mr00000-dell systemd[1137]: Started snap.firefox.firefox-ab0bfd30-9084-4257-b182-aa77a1081599.scope. Feb 10 10:48:54 mr00000-dell kernel: [ 303.209546] audit: type=1400 audit(1707558534.270:65): apparmor="DENIED" operation="file_mmap" class="file" profile="/snap/snapd/20671/usr/lib/snapd/snap-confine" name="/snap/snapd/20671/usr/lib/snapd/snap-update-ns" pid=1640 comm="5" requested_mask="m" denied_mask="m" fsuid=0 ouid=0 Feb 10 10:48:54 mr00000-dell systemd[1]: tmp-snap.rootfs_5KSZiY.mount: Deactivated successfully. Feb 10 10:49:52 mr00000-dell dbus-daemon[667]: [system] Activating via systemd: service name='org.freedesktop.timedate1' unit='dbus-org.freedesktop.timedate1.service' requested by ':1.22' (uid=0 pid=695 comm="/usr/lib/snapd/snapd ") Feb 10 10:49:52 mr00000-dell systemd[1]: Starting Time & Date Service... Feb 10 10:49:52 mr00000-dell dbus-daemon[667]: [system] Successfully activated service 'org.freedesktop.timedate1' Feb 10 10:49:52 mr00000-dell systemd[1]: Started Time & Date Service. Feb 10 10:50:22 mr00000-dell systemd[1]: systemd-timedated.service: Deactivated successfully. Feb 10 10:50:59 mr00000-dell systemd[1]: Condition check resulted in Daily apt download activities being skipped. kernlog Feb 10 10:48:54 mr00000-dell kernel: [ 303.209546] audit: type=1400 audit(1707558534.270:65): apparmor="DENIED" operation="file_mmap" class="file" profile="/snap/snapd/20671/usr/lib/snapd/snap-confine" name="/snap/snapd/20671/usr/lib/snapd/snap-update-ns" pid=1640 comm="5" requested_mask="m" denied_mask="m" fsuid=0 ouid=0