reproduce:
        git checkout 83a7eefedc9b56fe7bfeff13b6c7356688ffa670
        b4 shazam https://lore.kernel.org/r/20240612-6-10-rocket-v1-6-060e48eea250@tomeuvizoso.net
        # choose either of the following two methods to reproduce the issue
        # 1. reproduce by kismet
           # install kmax per https://github.com/paulgazz/kmax/blob/master/README.md
           kismet --linux-ksrc=linux --selectees CONFIG_IOMMU_IO_PGTABLE_LPAE --selectors CONFIG_DRM_ACCEL_ROCKET -a=arc
        # 2. reproduce by make
           cd linux
           # download the config file from the "config:" link in the report, and save it as .config
           make ARCH=arc olddefconfig