• Yinghai Lu's avatar
    x86: Make smp_locks end with page alignment · 596b711e
    Yinghai Lu authored
    Fix:
    
     ------------[ cut here ]------------
     WARNING: at arch/x86/mm/init.c:342 free_init_pages+0x4c/0xfa()
     free_init_pages: range [0x40daf000, 0x40db5c24] is not aligned
     Modules linked in:
     Pid: 0, comm: swapper Not tainted
     2.6.34-rc2-tip-03946-g4f16b23-dirty #50 Call Trace:
      [<40232e9f>] warn_slowpath_common+0x65/0x7c
      [<4021c9f0>] ? free_init_pages+0x4c/0xfa
      [<40881434>] ? _etext+0x0/0x24
      [<40232eea>] warn_slowpath_fmt+0x24/0x27
      [<4021c9f0>] free_init_pages+0x4c/0xfa
      [<40881434>] ? _etext+0x0/0x24
      [<40d3f4bd>] alternative_instructions+0xf6/0x100
      [<40d3fe4f>] check_bugs+0xbd/0xbf
      [<40d398a7>] start_kernel+0x2d5/0x2e4
      [<40d390ce>] i386_start_kernel+0xce/0xd5
     ---[ end trace 4eaa2a86a8e2da22 ]---
    
    Comments in vmlinux.lds.S already said:
    
     |        /*
     |         * smp_locks might be freed after init
     |         * start/end must be page aligned
     |         */
    Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
    Acked-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
    Cc: David Miller <davem@davemloft.net>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    LKML-Reference: <1269830604-26214-2-git-send-email-yinghai@kernel.org>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    596b711e
vmlinux.lds.S 8.14 KB