On Mon, 24 Jun 2019 22:03:45 -0500 Josh Poimboeuf <jpoim...@redhat.com> wrote:
> Looking at the dmesg, panic_on_oops doesn't seem to be enabled: it went > through the rewind_stack_do_exit() path instead of the panic() path. So > the system is apparently not configured to reboot on oops. "Command line: BOOT_IMAGE=/boot/drm_intel root=/dev/sda1 rootwait fsck.repair=yes intel_iommu=igfx_off nmi_watchdog=panic,auto panic=5 softdog.soft_panic=5 drm.debug=0xe log_buf_len=1M 3 ro" > > So I'd say the hang was presumably caused by a lock held by the oopsing > code. So it looks normal to me, other than the original oops. > Looks like its missing "oops=panic", as the documentation says: oops=panic Always panic on oopses. Default is to just kill the process, but there is a small probability of deadlocking the machine. This will also cause panics on machine check exceptions. Useful together with panic=30 to trigger a reboot. -- Steve