I'm now testing Samsung Arndale Android build then find following error information at the end of boot log:

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[  181.350000] ------------[ cut here ]------------
4WARNING: at /mnt/jenkins/workspace/linaro-android_linux-linaro-arndale/build/kernel/linaro/arndale/mm/page_alloc.c:2387 __alloc_pages_nodema)
[  181.370000] WARNING: at /mnt/jenkins/workspace/linaro-android_linux-linaro-arndale/build/kernel/linaro/arndale/mm/page_alloc.c:2387 __allo)
dModules linked in:[  181.390000] Mo
                                     ules linked in:
[<c001483c>] (unwind_backtrace+0x0/0xf4) from [<c001efa0>] (warn_slowpath_common+0x54/0x6c)
[  181.410000] [<c001483c>] (unwind_backtrace+0x0/0xf4) from [<c001efa0>] (warn_slowpath_common+0x54/0x6c)
[<c001efa0>] (warn_slowpath_common+0x54/0x6c) from [<c001f054>] (warn_slowpath_null+0x1c/0x24)
[  181.430000] [<c001efa0>] (warn_slowpath_common+0x54/0x6c) from [<c001f054>] (warn_slowpath_null+0x1c/0x24)
[<c001f054>] (warn_slowpath_null+0x1c/0x24) from [<c0078888>] (__alloc_pages_nodemask+0x1dc/0x874)
[  181.450000] [<c001f054>] (warn_slowpath_null+0x1c/0x24) from [<c0078888>] (__alloc_pages_nodemask+0x1dc/0x874)
[<c0078888>] (__alloc_pages_nodemask+0x1dc/0x874) from [<c0078f30>] (__get_free_pages+0x10/0x24)
[  181.470000] [<c0078888>] (__alloc_pages_nodemask+0x1dc/0x874) from [<c0078f30>] (__get_free_pages+0x10/0x24)
[<c0078f30>] (__get_free_pages+0x10/0x24) from [<c00d3050>] (seq_read+0x238/0x494)
[  181.490000] [<c0078f30>] (__get_free_pages+0x10/0x24) from [<c00d3050>] (seq_read+0x238/0x494)
[<c00d3050>] (seq_read+0x238/0x494) from [<c00b50ac>] (vfs_read+0x98/0x144)
[  181.510000] [<c00d3050>] (seq_read+0x238/0x494) from [<c00b50ac>] (vfs_read+0x98/0x144)
[<c00b50ac>] (vfs_read+0x98/0x144) from [<c00b53e0>] (sys_read+0x3c/0x78)
[  181.520000] [<c00b50ac>] (vfs_read+0x98/0x144) from [<c00b53e0>] (sys_read+0x3c/0x78)
[<c00b53e0>] (sys_read+0x3c/0x78) from [<c000dec0>] (ret_fast_syscall+0x0/0x30)
[  181.540000] [<c00b53e0>] (sys_read+0x3c/0x78) from [<c000dec0>] (ret_fast_syscall+0x0/0x30)
4---[ end trace 9b7ab5bac2be8bf4 ]---
[  181.560000] ---[ end trace 9b7ab5bac2be8bf4 ]---