Hello Arnd, On Mon, Aug 26, 2024 at 2:55 PM Arnd Bergmann <arnd@xxxxxxxx> wrote: > What you see is certainly unrelated to me mentioning that we may remove > highmem support from the kernel altogether in the future, but it's > possible that OpenWRT turned it off because things work better > without it. > > https://github.com/openwrt/openwrt/issues/13151 may explain > what ios going on here. Thanks a lot for that hint, indeed there is a solution, which does not rely on `CONFIG_HIGHMEM=y`, linked from this issue. Just setting `HIGHMEM_START` made space available for that 64MB RAM chunk. Thanks -- Vincent Legoll
