On 2/3/20 2:48 PM, Marc Kleine-Budde wrote: >>> WARNING: CPU: 0 PID: 293 at lib/refcount.c:25 refcount_warn_saturate+0x108/0x174 >>> refcount_t: addition on 0; use-after-free. >> >> FYI, >> This issue noticed in our Linaro test farm >> On linux next version 5.5.0-next-20200203 running on beagleboard x15 arm device. >> >> Thanks for providing fix for this case. Please look closely at your backtraces, they are totally unrelated. It seems the whole culprit in your testcase fails with: > [ 0.000000] OF: ERROR: Bad of_node_put() on /ocp/interconnect@4a000000/segment@0/target-module@8000/cm_core@0/l4per-cm@1700/l4per-clkctrl@28 ...the rest are subsequent faults. > Can we add your Tested-by to the patch? Answering myself: NO! Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
