TI中文支持网说明：我们的板用的内存大小是64MByte。用sdk6.0的能正常启动。用SDK7.0 设备树的启动有时候就会出现下面的错误，导致系统不能进入。是不是我们的内存太小了，还是设备树或者内核中需要修改某些参数。
还有我修改了设备树种的，情况还是一样
memory {
device_type = "memory";
//reg = <0x80000000 0x10000000>; /* 256 MB */
reg = <0x80000000 0x4000000>; //64MB
这是启动的log：
[ 4.938295] UBIFS: reserved for root: 0 bytes (0 KiB)
[ 4.943613] UBIFS: media format: w4/r0 (latest is w4/r0), UUID D67454B2-BD16-41F1-ADEB-B2373DCBF330, small LPT model
[ 4.955385] VFS: Mounted root (ubifs filesystem) on device 0:13.
[ 4.962679] devtmpfs: mounted
[ 4.966438] Freeing unused kernel memory: 272K (c084a000 – c088e000)
INIT: version 2.88 booting
Error opening /dev/fb0: No such file or directory
Starting udev
[ 5.788096] udevd[870]: starting version 182
Starting Bootlog daemon: bootlogd: cannot allocate pseudo tty: No such file or directory
bootlogd.
[ 8.067292] udevd invoked oom-killer: gfp_mask=0x80d0, order=0, oom_score_adj=-1000
[ 8.075384] CPU: 0 PID: 886 Comm: udevd Not tainted 3.14.26-gb9df364-dirty #50
[ 8.083052] Backtrace:[ 8.085670] [<c0011268>] (dump_backtrace) from [<c0011404>] (show_stack+0x18/0x1c)
[ 8.093685] r6:000080d0 r5:c3bf0040 r4:00000000 r3:00000000
[ 8.099707] [<c00113ec>] (show_stack) from [<c0619cb8>] (dump_stack+0x20/0x28)
[ 8.107320] [<c0619c98>] (dump_stack) from [<c06187b4>] (dump_header.isra.15+0x4c/0x140)
[ 8.115831] [<c0618768>] (dump_header.isra.15) from [<c0096450>] (oom_kill_process+0x23c/0x35c)
[ 8.124986] r10:00000000 r9:c089b7e8 r8:00000000 r7:00000000 r6:000080d0 r5:000080d0
[ 8.133274] r4:c3bd0000
[ 8.135956] [<c0096214>] (oom_kill_process) from [<c0096a48>] (out_of_memory+0x30c/0x364)
[ 8.144552] r10:00000000 r9:c089b7e8 r8:00000000 r7:00000000 r6:000080d0 r5:c089b904
[ 8.152827] r4:c089b7e8
[ 8.155505] [<c009673c>] (out_of_memory) from [<c009a998>] (__alloc_pages_nodemask+0x970/0x99c)
[ 8.164661] r10:00000000 r9:000080d0 r8:00000000 r7:00000000 r6:c3bea000 r5:c0898170
[ 8.172950] r4:c08df8e4
[ 8.175627] [<c009a028>] (__alloc_pages_nodemask) from [<c009a9dc>] (__get_free_pages+0x18/0x34)
[ 8.184874] r10:c10501e8 r9:00000400 r8:c3bebf5c r7:c3bebec8 r6:bef91fbc r5:00004000
[ 8.193155] r4:c104f980
[ 8.195834] [<c009a9c4>] (__get_free_pages) from [<c009aa10>] (get_zeroed_page+0x18/0x1c)
[ 8.204461] [<c009a9f8>] (get_zeroed_page) from [<c012a9dc>] (kernfs_iop_follow_link+0x1c/0x198)
[ 8.213730] [<c012a9c0>] (kernfs_iop_follow_link) from [<c00d349c>] (generic_readlink+0x38/0x9c)
[ 8.222978] r10:c10501e8 r9:00000400 r8:c3bebf5c r7:00000400 r6:bef91fbc r5:00004000
[ 8.231257] r4:c104f980 r3:c012a9c0
[ 8.235038] [<c00d3464>] (generic_readlink) from [<c00cf638>] (SyS_readlinkat+0xe4/0xf4)
[ 8.243550] r7:bef91bbc r6:ffffff9c r5:00004000 r4:00000000
[ 8.249549] [<c00cf554>] (SyS_readlinkat) from [<c00cf66c>] (SyS_readlink+0x24/0x28)
[ 8.257702] r10:00000000 r9:c3bea000 r8:c000e964 r7:00000055 r6:00032418 r5:bef923dc
[ 8.265984] r4:00032418
[ 8.268655] [<c00cf648>] (SyS_readlink) from [<c000e7e0>] (ret_fast_syscall+0x0/0x30)
[ 8.276896] Mem-info:
[ 8.279283] Normal per-cpu:
[ 8.282217] CPU 0: hi: 0, btch: 1 usd: 0
[ 8.287282] active_anon:4708 inactive_anon:3 isolated_anon:0
[ 8.287282] active_file:5 inactive_file:10 isolated_file:0
[ 8.287282] unevictable:0 dirty:0 writeback:0 unstable:0
[ 8.287282] free:6170 slab_reclaimable:198 slab_unreclaimable:1096
[ 8.287282] mapped:5 shmem:8 pagetables:309 bounce:0
[ 8.287282] free_cma:5833
[ 8.319492] Normal free:24680kB min:924kB low:1152kB high:1384kB active_anon:18832kB inactive_anon:12kB active_file:20kB inactive_file:40kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:63488kB managed:53676kB mlocked:0kB dirty:0kB writeback:0kB mapped:20kB shmem:32kB slab_reclaimable:792kB slab_unreclaimable:4384kB kernel_stack:848kB pagetables:1236kB unstable:0kB bounce:0kB free_cma:23332kB writeback_tmp:0kB pages_scanned:4988 all_unreclaimable? yes
[ 8.362959] lowmem_reserve[]: 0 0 0
[ 8.366655] Normal: 342*4kB (UEMC) 288*8kB (UMC) 267*16kB (UMC) 251*32kB (UEC) 126*64kB (UEC) 5*128kB (C) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB 0*8192kB = 24680kB
[ 8.382503] 23 total pagecache pages
[ 8.386278] 0 pages in swap cache
[ 8.389762] Swap cache stats: add 0, delete 0, find 0/0
[ 8.395258] Free swap = 0kB
[ 8.398303] Total swap = 0kB
[ 8.404028] 16384 pages of RAM
[ 8.407314] 6513 free pages
[ 8.410250] 2965 reserved pages
[ 8.413551] 1243 slab pages
[ 8.416504] 2620 pages shared
[ 8.419625] 0 pages swap cached
[ 8.422923] [ pid ] uid tgid total_vm rss nr_ptes swapents oom_score_adj name
[ 8.431202] [ 837] 0 837 330 15 3 0 0 init
[ 8.439490] [ 838] 0 838 558 46 4 0 0 rc
[ 8.447566] [ 870] 0 870 725 156 4 0 -1000 udevd
[ 8.455908] [ 873] 0 873 625 67 4 0 -1000 udevd
[ 8.464230] [ 874] 0 874 625 69 4 0 -1000 udevd
[ 8.472566] [ 875] 0 875 625 69 4 0 -1000 udevd
[ 8.480909] [ 876] 0 876 625 68 4 0 -1000 udevd
[ 8.489251] [ 877] 0 877 625 67 4 0 -1000 udevd
[ 8.497590] [ 878] 0 878 625 65 4 0 -1000 udevd
[ 8.505930] [ 879] 0 879 625 69 4 0 -1000 udevd
[ 8.514255] [ 880] 0 880 625 67 4 0 -1000 udevd
[ 8.522604] [ 886] 0 886 625 65 4 0 -1000 udevd
[ 8.530953] [ 891] 0 891 562 51 4 0 0 S04udev
[ 8.539478] [ 893] 0 893 554 29 4 0 0 udevadm
[ 8.548003] [ 903] 0 903 649 88 4 0 -1000 udevd
[ 8.556349] [ 904] 0 904 649 87 4 0 -1000 udevd
[ 8.564678] [ 905] 0 905 649 87 4 0 -1000 udevd
[ 8.573028] [ 906] 0 906 649 86 4 0 -1000 udevd
[ 8.581377] [ 907] 0 907 649 86 4 0 -1000 udevd
[ 8.589714] [ 908] 0 908 649 86 4 0 -1000 udevd
[ 8.598059] [ 909] 0 909 650 86 4 0 -1000 udevd
[ 8.606410] [ 910] 0 910 650 86 4 0 -1000 udevd
[ 8.614746] [ 911] 0 911 651 86 4 0 -1000 udevd
[ 8.623087] [ 921] 0 921 651 86 4 0 -1000 udevd
[ 8.631427] [ 922] 0 922 651 86 4 0 -1000 udevd
[ 8.639773] [ 923] 0 923 652 86 4 0 -1000 udevd
[ 8.648118] [ 924] 0 924 653 86 4 0 -1000 udevd
[ 8.656457] [ 925] 0 925 654 86 4 0 -1000 udevd
[ 8.664782] [ 926] 0 926 655 86 4 0 -1000 udevd
[ 8.673129] [ 931] 0 931 655 89 4 0 -1000 udevd
[ 8.681475] [ 932] 0 932 656 89 4 0 -1000 udevd
[ 8.689821] [ 933] 0 933 656 90 4 0 -1000 udevd
[ 8.698174] [ 934] 0 934 657 89 4 0 -1000 udevd
[ 8.706520] [ 935] 0 935 658 89 4 0 -1000 udevd
[ 8.714846] [ 936] 0 936 658 89 4 0 -1000 udevd
[ 8.723196] [ 937] 0 937 658 89 4 0 -1000 udevd
[ 8.731536] [ 938] 0 938 658 90 4 0 -1000 udevd
[ 8.739875] [ 976] 0 976 658 112 4 0 -1000 udevd
[ 8.748212] [ 977] 0 977 658 112 4 0 -1000 udevd
[ 8.756555] [ 978] 0 978 658 109 4 0 -1000 udevd
[ 8.764882] [ 979] 0 979 659 110 4 0 -1000 udevd
[ 8.773237] [ 980] 0 980 666 112 4 0 -1000 udevd
[ 8.781579] [ 981] 0 981 666 112 4 0 -1000 udevd
[ 8.789921] [ 982] 0 982 658 109 4 0 -1000 udevd
[ 8.798265] [ 983] 0 983 691 112 4 0 -1000 udevd
[ 8.806615] [ 984] 0 984 691 112 4 0 -1000 udevd
[ 8.814945] [ 985] 0 985 691 112 4 0 -1000 udevd
[ 8.823286] [ 986] 0 986 691 112 4 0 -1000 udevd
[ 8.831627] [ 988] 0 988 691 112 4 0 -1000 udevd
[ 8.839974] [ 989] 0 989 691 112 4 0 -1000 udevd
[ 8.848319] [ 990] 0 990 691 112 4 0 -1000 udevd
[ 8.856667] [ 991] 0 991 691 112 4 0 -1000 udevd
[ 8.864993] [ 992] 0 992 691 112 4 0 -1000 udevd
[ 8.873336] [ 993] 0 993 691 112 4 0 -1000 udevd
[ 8.881678] [ 994] 0 994 691 117 4 0 -1000 udevd
[ 8.890020] [ 995] 0 995 691 112 4 0 -1000 udevd
[ 8.898362] [ 996] 0 996 691 112 4 0
binbin wang：
回复 Jian Zhou:
删掉/etc/init.d/S04udev这个启动进程问题就解决了
leo chen：
回复 binbin wang:
删了会不会带了其它问题？什么时候初始化这些挂载这些设备呢
