Messages in this thread | | | Date | Wed, 26 Jun 2019 08:26:09 -0400 | From | Steven Rostedt <> | Subject | Re: NMI hardlock stacktrace deadlock [was Re: Linux 5.2-rc5] |
| |
On Mon, 24 Jun 2019 22:03:45 -0500 Josh Poimboeuf <jpoimboe@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
| |