Greetings, I got the below dmesg and the error is exposed by commit 68abcdf54742a06de9ec52cbb05b6bdd27e6bdab Author: Grygorii Strashko AuthorDate: Fri Jan 3 14:09:57 2014 +1100 Commit: Stephen Rothwell CommitDate: Fri Jan 3 14:09:57 2014 +1100 mm/memblock: use WARN_ONCE when MAX_NUMNODES passed as input parameter Check nid parameter and produce warning if it has deprecated MAX_NUMNODES value. Also re-assign NUMA_NO_NODE value to the nid parameter in this case. These will help to identify the wrong API usage (the caller) and make code simpler. Signed-off-by: Grygorii Strashko Signed-off-by: Santosh Shilimkar Cc: Yinghai Lu Cc: Tejun Heo Signed-off-by: Andrew Morton [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] mapped APIC to ffffffffff57b000 ( fee00000) [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: CPU: 0 PID: 0 at mm/memblock.c:789 __next_free_mem_range+0xc7/0x29c() [ 0.000000] Usage of MAX_NUMNODES is deprecated. Use NUMA_NO_NODE instead [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.13.0-rc7-next-20140106-07462-gb4a839b #455 [ 0.000000] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 0.000000] 0000000000000009 ffffffff82201d70 ffffffff81986d81 ffffffff82201db8 [ 0.000000] ffffffff82201da8 ffffffff810da9a8 0000000000000000 0000000000000001 [ 0.000000] 0000000000000001 0000000000000001 0000000000000001 ffffffff82201e08 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x85/0xba [ 0.000000] [] warn_slowpath_common+0xa8/0xe0 [ 0.000000] [] warn_slowpath_fmt+0x5c/0x70 [ 0.000000] [] ? vprintk_emit+0x465/0x950 [ 0.000000] [] __next_free_mem_range+0xc7/0x29c [ 0.000000] [] ? early_idt_handlers+0x120/0x120 [ 0.000000] [] ? early_idt_handlers+0x120/0x120 [ 0.000000] [] memblock_find_dma_reserve+0xca/0x163 [ 0.000000] [] setup_arch+0x1086/0x11f9 [ 0.000000] [] ? early_idt_handlers+0x120/0x120 [ 0.000000] [] ? early_idt_handlers+0x120/0x120 [ 0.000000] [] start_kernel+0xe4/0x6fc [ 0.000000] [] ? early_idt_handlers+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x46/0x4f [ 0.000000] [] x86_64_start_kernel+0x189/0x19f [ 0.000000] ---[ end trace 8fe5782a70405023 ]--- [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 Thanks, Fengguang