Messages in this thread | | | Date | Sun, 27 Nov 2022 22:28:41 +0000 | From | Paul Cercueil <> | Subject | of_reserved_mem_device_init() prints kernel memory in dmesg |
| |
Hi Christoph, Marek,
Here's what I get in dmesg on a 6.1-rc6 kernel:
OF: fdt: Reserved memory: reserved region for node 'video-memory@1f00000': base 0x01f00000, size 1 MiB OF: reserved mem: initialized node video-memory@1f00000, compatible id shared-dma-pool ingenic-drm 13050000.lcd-controller: assigned reserved memory node <garbage data...>
I would *think* it's because the name is obtained using fdt_get_name() in fdt_scan_reserved_mem(), and the pointer becomes invalid as soon as the FDT is freed (is it freed?).
Not sure how to fix that myself, I tried to kstrdup(uname) in fdt_reserved_mem_save_node(), but it gives me a NULL pointer, probably too early in the boot process?
Cheers, -Paul
| |