[ Upstream commit6065e736f8
] On NOMMU, userspace memory can come from anywhere in physical RAM. The current definition of TASK_SIZE is wrong if any RAM exists above 4G, causing spurious failures in the userspace access routines. Fixes:6bd33e1ece
("riscv: add nommu support") Fixes:c3f896dcf1
("mm: switch the test_vmalloc module to use __vmalloc_node") Signed-off-by: Samuel Holland <samuel.holland@sifive.com> Reviewed-by: Jisheng Zhang <jszhang@kernel.org> Reviewed-by: Bo Gan <ganboing@gmail.com> Link: https://lore.kernel.org/r/20240227003630.3634533-2-samuel.holland@sifive.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Sasha Levin <sashal@kernel.org>