What makes the CubieBoard 1G recognition memory

[XiaoQI Ge]

What makes the CubieBoard 1G recognition memory

I have changed it to 1G, the startup panic

	memory {
device_type = "memory";
reg = < 0x40000000 0x40000000 >; /* 1GB RAM */

sun4i#go 0x40200100
## Starting application at 0x40200100 ...
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2013 The FreeBSD Project.
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        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 10.0-CURRENT #3 r253878M: Fri Aug  2 20:40:12 CST 2013
    root at FreeBSD.7axu.com:/usr/obj/arm.armv6/usr/src/sys/CBOARD arm
FreeBSD clang version 3.3 (tags/RELEASE_33/final 183502) 20130610
WARNING: WITNESS option enabled, expect reduced performance.
CPU: Cortex A8-r3 rev 2 (Cortex-A core)
 Supported features: ARM_ISA THUMB2 JAZELLE THUMBEE ARMv4 Security_Ext
 WB disabled EABT branch prediction enabled
LoUU:2 LoC:2 LoUIS:1
Cache level 1:
 32KB/64B 4-way data cache WT WB Read-Alloc
 32KB/64B 4-way instruction cache Read-Alloc
Cache level 2:
 256KB/64B 8-way unified cache WT WB Read-Alloc Write-Alloc
real memory  = 1073741824 (1024 MB)
panic: kmem_suballoc: bad status return of 3
KDB: enter: panic
[ thread pid 0 tid 0 ]
Stopped at      kdb_enter+0x4c: ldrb    r15, [r15, r15, ror r15]!
db> bt
Tracing pid 0 tid 0 td 0xc0809280
db_trace_self() at db_trace_self
         pc = 0xc0569ce4  lr = 0xc022c954 (db_hex2dec+0x4dc)
         sp = 0xc0820ae4  fp = 0xc0820afc
        r10 = 0xc065d670
db_hex2dec() at db_hex2dec+0x4dc
         pc = 0xc022c954  lr = 0xc022c2c0 (db_command_loop+0x2f0)
         sp = 0xc0820b04  fp = 0xc0820ba4
         r4 = 0x00000000  r5 = 0x00000000
         r6 = 0xc05c0331
db_command_loop() at db_command_loop+0x2f0
         pc = 0xc022c2c0  lr = 0xc022c030 (db_command_loop+0x60)
         sp = 0xc0820bac  fp = 0xc0820bbc
         r4 = 0xc059fddc  r5 = 0xc05b9c6e
         r6 = 0xc0808308  r7 = 0xc0820d8c
         r8 = 0xc0809280  r9 = 0xc06a5c24
        r10 = 0xc065d8e0
db_command_loop() at db_command_loop+0x60
         pc = 0xc022c030  lr = 0xc022ea30 (X_db_symbol_values+0x254)
         sp = 0xc0820bc4  fp = 0xc0820ce4
         r4 = 0x00000000  r5 = 0xc0820bcc
         r6 = 0xc06a5c4c
X_db_symbol_values() at X_db_symbol_values+0x254
         pc = 0xc022ea30  lr = 0xc038d9a8 (kdb_trap+0xd4)
         sp = 0xc0820cec  fp = 0xc0820d0c
         r4 = 0x00000000  r5 = 0x00000001
         r6 = 0xc06a5c4c  r7 = 0xc0820d8c
kdb_trap() at kdb_trap+0xd4
         pc = 0xc038d9a8  lr = 0xc057a1e4 (undefinedinstruction+0x274)
         sp = 0xc0820d14  fp = 0xc0820d84
         r4 = 0x00000000  r5 = 0xc0579ecc
         r6 = 0x00000000  r7 = 0xe7ffffff
         r8 = 0xc0809280  r9 = 0xc0820d8c
        r10 = 0xc038d29c
undefinedinstruction() at undefinedinstruction+0x274
         pc = 0xc057a1e4  lr = 0xc056b510 (exception_exit)
         sp = 0xc0820d8c  fp = 0xc0820de0
         r4 = 0xc05b9cc8  r5 = 0xc0820e24
         r6 = 0xc05e5c3b  r7 = 0xc0697b30
         r8 = 0xc0809280  r9 = 0xc0697990
        r10 = 0xc0809d5c
exception_exit() at exception_exit
         pc = 0xc056b510  lr = 0xc038d290 (kdb_enter+0x40)
         sp = 0xc0820dd8  fp = 0xc0820de0
         r0 = 0xc06a5c34  r1 = 0x00000000
         r2 = 0xc05bd67d  r3 = 0x000000ab
         r4 = 0xc05b9cc8  r5 = 0xc0820e24
         r6 = 0xc05e5c3b  r7 = 0xc0697b30
         r8 = 0xc0809280  r9 = 0xc0697990
        r10 = 0xc0809d5c r12 = 0x00000000
kdb_enter() at kdb_enter+0x50
         pc = 0xc038d2a0  lr = 0xc035776c (kassert_panic+0x1c8)
         sp = 0xc0820de8  fp = 0xc0820e08
         r4 = 0x00000100
kassert_panic() at kassert_panic+0x1c8
         pc = 0xc035776c  lr = 0xc03577d0 (kproc_shutdown)
         sp = 0xc0820e10  fp = 0xc0820e18
         r4 = 0xc08ff000  r5 = 0xc0820e70
         r6 = 0xc0820e6c  r7 = 0x007c0000
         r8 = 0xc080c268  r9 = 0xc0809ff4
        r10 = 0xc080c784
kproc_shutdown() at kproc_shutdown
         pc = 0xc03577d0  lr = 0xc0545df0 (kmem_suballoc+0xd4)
         sp = 0xc0820e20  fp = 0xc0820e58
         r4 = 0xc0820e24  r5 = 0xc0820e6c
kmem_suballoc() at kmem_suballoc+0xd4
         pc = 0xc0545df0  lr = 0xc05453c4 (vm_ksubmap_init+0x1dc)
         sp = 0xc0820e60  fp = 0xc0820e90
         r4 = 0xc0820e70  r5 = 0xc0820e6c
         r6 = 0x00000000  r7 = 0x00000efe
vm_ksubmap_init() at vm_ksubmap_init+0x1dc
         pc = 0xc05453c4  lr = 0xc056e344 (initarm+0xb98)
         sp = 0xc0820e98  fp = 0xc0820ed0
         r4 = 0x00000001  r5 = 0xc080c264
         r6 = 0x00000000  r7 = 0xc05ed988
         r8 = 0x00000000  r9 = 0xc0809280
        r10 = 0xc0820ef8
initarm() at initarm+0xb98
         pc = 0xc056e344  lr = 0xc0308a28 (mi_startup+0x11c)
         sp = 0xc0820ed8  fp = 0xc0820ef0
         r4 = 0x00000001  r5 = 0xc0809278
         r6 = 0x00000000  r7 = 0xc05ed988
         r8 = 0xc0809a84  r9 = 0xc0809a80
        r10 = 0x7fe61408
mi_startup() at mi_startup+0x11c
         pc = 0xc0308a28  lr = 0xc0200224 (btext+0x124)
         sp = 0xc0820ef8  fp = 0x00000000
         r4 = 0x40200264  r5 = 0x40200158
         r6 = 0x00000001  r7 = 0x4020014c
         r8 = 0x7fe6140c  r9 = 0x00000001
btext() at btext+0x124
         pc = 0xc0200224  lr = 0xc0200224 (btext+0x124)
         sp = 0xc0820ef8  fp = 0x00000000
Unable to unwind further
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