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    x86/Kconfig: Limit NR_CPUS on 32-bit to a sane amount · 7bbcbd3d
    Thomas Gleixner 提交于
    The recent cpu_entry_area changes fail to compile on 32-bit when BIGSMP=y
    and NR_CPUS=512, because the fixmap area becomes too big.
    
    Limit the number of CPUs with BIGSMP to 64, which is already way to big for
    32-bit, but it's at least a working limitation.
    
    We performed a quick survey of 32-bit-only machines that might be affected
    by this change negatively, but found none.
    Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
    Cc: Andy Lutomirski <luto@kernel.org>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Dave Hansen <dave.hansen@linux.intel.com>
    Cc: H. Peter Anvin <hpa@zytor.com>
    Cc: Josh Poimboeuf <jpoimboe@redhat.com>
    Cc: Juergen Gross <jgross@suse.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: linux-kernel@vger.kernel.org
    Signed-off-by: NIngo Molnar <mingo@kernel.org>
    7bbcbd3d
Kconfig 92.6 KB