Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> writes: > > Today's qemu boot log shows 256k extra in reserved memory: > > - Memory: 2046080K/2097152K available (14720K kernel code, 2944K rwdata, 18048K rodata, 5184K init, 1431K bss, 51072K reserved, 0K cma-reserved) > + Memory: 2045824K/2097152K available (14720K kernel code, 2944K rwdata, 18048K rodata, 5184K init, 1439K bss, 51328K reserved, 0K cma-reserved) > > I don't know what has caused this. Assuming it's pseries, it's the RTAS work area allocator reserving the memory. 43033bc62d34 powerpc/pseries: add RTAS work area allocator