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我们在使用的核心板是OMAPL138 128M内存规格，但是在开发板快速体验手册中提供的U-BOOT参数配置命令是：从SD卡启动：
+ _- h) `: j$ F在3秒内按任意键进入u-boot命令行，执行以下命令设置为SD卡启动： S. B1 x# e5 e" W; w
U-Boot > setenv bootcmd 'mmcinfo;mmc init;fatload mmc 0 c0700000 uImage;bootm'" J# g' f' k2 o3 W1 Z0 L0 X. z8 f
U-Boot > setenv bootargs console=ttyS2,115200n8 root=/dev/mmcblk0p2 rw rootfstype=ext3 mem=128M3 T( t" v* m$ {1 h6 b L$ p
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从FLASH启动：0 R2 Q# u4 V: j- v# T
在U-Boot命令行执行以下命令来设置为NAND FLASH启动系统。
3 S* b) x2 y) a, x% AU-Boot > setenv bootcmd 'nboot.e 0xc0700000 0 0x120000; bootm' 6 v3 }& g+ J" l2 V1 d
U-Boot > setenv bootargs 'console=ttyS2,115200n8 ip=off ubi.mtd=4,2048 root=ubi0_0 rootfstype=ubifs mem=32M@0xc0000000 mem=64M@0xc4000000'
7 K2 K4 H! `+ ` U-Boot > saveenv7 ]9 u# z1 A# B, T) D
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请问这是笔误还是从SD卡启动和从NAND启动内存大小设置不同？
' _: ?7 X, s. P: D8 {" B* j+ {另外我设置从NAND启动 内存大小为128M，在 rc5.d中创建s99restart脚本，内容为
* ]1 l; v- e7 R& `0 v: y0 Vsleep 52 `4 a \$ |7 c4 D+ @, K
reboot! o. O5 |6 f; U% D- d8 I
意图是通过不断的热启动来验证系统UBIFS对NAND的读写是否稳定，但是发现会概率性出现以下的段访问异常错误，掉电重启后又恢复正常，
0 P/ m- r7 H" L, k4 p9 k内核版本为创龙提供的2014.11.15的版本，请问这会是什么原因导致的，错误信息如下：
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# N R } k p1 W' p$ m$ r[ 2.637774] UBI: attaching mtd4 to ubi0
& k2 x7 w9 E, E( V[ 2.641673] UBI: physical eraseblock size: 131072 bytes (128 KiB)' `+ a I3 }. r# @, ?
[ 2.648283] UBI: logical eraseblock size: 126976 bytes
$ h1 B% w+ m3 B[ 2.653769] UBI: smallest flash I/O unit: 2048+ l9 Z; \) y# z( r
[ 2.658648] UBI: sub-page size: 512
# F! `1 }3 F' [* P6 m3 ^) v) @ c[ 2.663309] UBI: VID header offset: 2048 (aligned 2048)
$ E% X0 e1 C) I2 `* k( S; B[ 2.669464] UBI: data offset: 4096! \1 F, U, h0 G5 I3 L
[ 6.060848] UBI: max. sequence number: 23862990 X* t8 U$ y. m
[ 6.083946] Unable to handle kernel paging request at virtual address 872281a4, A8 F6 J# Y& c3 l- o) J% M" x" s
[ 6.091390] pgd = c0004000
: w9 W9 M( k) z: ]. t8 |1 u[ 6.094134] [872281a4] *pgd=00000000* N% o1 N( N& ]2 u% ]0 ?) o
[ 6.097850] Internal error: Oops: 805 [#1] PREEMPT5 C7 K& Q) m* Y# s
[ 6.102678] Modules linked in:* {& w* O# g! _2 ?: p6 b' k
[ 6.105775] CPU: 0 Not tainted (3.3.0 #15)/ |, `' u/ p3 R7 ^4 O7 b
[ 6.110284] PC is at ubi_wl_init_scan+0x218/0x31c3 M7 p, ^% |1 @) w. E# v
[ 6.115032] LR is at ubi_wl_init_scan+0x1f8/0x31c
k2 }) J( f9 g' S" [2 |[ 6.119777] pc : [<c0240324>] lr : [<c0240304>] psr: a0000013, d0 T) k# T% ]* O1 c$ @& V
[ 6.119794] sp : c7835e40 ip : c7b6fc90 fp : c7835e6c" k/ y8 ^) r9 W7 u$ s6 T& E
[ 6.131337] r10: c7950b78 r9 : c05cbd68 r8 : c7950b84# c! B X/ \3 U: s
[ 6.136600] r7 : c7b9e860 r6 : c7bb0090 r5 : c7950800 r4 : c7bb0078; E: @# j% F$ p0 X
[ 6.143174] r3 : c7b68000 r2 : afdb0069 r1 : c7950b78 r0 : c7b6fc90$ i# d L& s: _ P: w: b8 R# g
[ 6.149751] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel; V: a$ e7 N4 c+ V5 H
[ 6.157111] Control: 0005317f Table: c0004000 DAC: 00000017
' q1 z, t9 O) |5 Y( c[ 6.162898] Process swapper (pid: 1, stack limit = 0xc7834270)
# b# j7 X4 k& l, C( l# V[ 6.168773] Stack: (0xc7835e40 to 0xc7836000)
. g6 Q4 m) M$ K[ 6.173179] 5e40: 00000081 00000000 c7950800 c7906a80 00000000 00000000 00000000 000000002 G8 d9 ~* d, ?7 Y3 t5 k
[ 6.181433] 5e60: c7835f64 c7835e70 c023a224 c024011c c7835eb4 c7835e80 c7835eb4 c7b9ce00! h' K/ P/ ]+ k2 p
[ 6.189685] 5e80: c00e380c c0407108 c7835eb4 c7835e98 c00e2ea4 c00e2d28 00000000 c794cfa0
7 @% i9 E1 n2 |) {+ r+ [[ 6.197935] 5ea0: 00000000 c78c6320 c7835ef4 c7835eb8 c00e40ac c00e3800 00000000 c7835ed0! ~5 o& f2 i: j- b# G+ B
[ 6.206188] 5ec0: c7835ef4 c7835ed0 c78c6320 00000000 c05bb8a4 c780ec00 c04f7caa 00000000
9 D* R a E. r/ q[ 6.214442] 5ee0: 00000014 c04f7caa c7835f04 c7835ef8 c780ec00 00000018 c7835f38 c057c08c1 H9 B8 E: @* l5 V4 g* j
[ 6.222691] 5f00: 00000014 c7835f7c c057c08c c057c08c 00000000 00000000 00000000 00000000
% u+ B! S% }# `7 [6 r% o[ 6.230941] 5f20: c7835f54 c7835f30 c01a327c c01a739c 00000000 0000000a c7b9ce00 c05cbce8$ E2 H4 f' X2 v- Q; K9 K( H/ U
[ 6.239191] 5f40: c7b9ce00 c057c08c 00000000 00000000 00000000 00000000 c7835fa4 c7835f687 m5 G2 Z& u* l9 M- x" f; m% q
[ 6.247444] 5f60: c0567b60 c0239d70 00000000 c7835f78 c01ed618 c01ed5a8 c057e848 c057c08d( s2 O' h1 s" I2 w
[ 6.255695] 5f80: c001baf0 c057e84c c055120c c001baf0 00000013 c0567998 c7835fdc c7835fa84 w6 g6 a; q) ]& t6 [0 x
[ 6.263949] 5fa0: c00087ec c05679a8 c7835fc4 c7835fb8 c0038acc c01a06e8 c057e84c c055120c" ^* Q \+ w( m9 z
[ 6.272200] 5fc0: c001baf0 00000013 00000000 00000000 c7835ff4 c7835fe0 c0551288 c000875c3 y5 e5 Q5 `; o# f6 d# t- g
[ 6.280451] 5fe0: 00000000 c055120c 00000000 c7835ff8 c001baf0 c055121c 00004010 00005019
* \' Q% U' m+ ?# c5 K4 A[ 6.288678] Backtrace:
; N3 P0 S3 I, l3 f9 {[ 6.291178] [<c024010c>] (ubi_wl_init_scan+0x0/0x31c) from [<c023a224>] (ubi_attach_mtd_dev+0x4c4/0xb24)$ L4 e; Q& P9 H1 W
[ 6.300767] [<c0239d60>] (ubi_attach_mtd_dev+0x0/0xb24) from [<c0567b60>] (ubi_init+0x1c8/0x2d4)2 ?% d% i) l2 Q5 _; m4 z
[ 6.309642] [<c0567998>] (ubi_init+0x0/0x2d4) from [<c00087ec>] (do_one_initcall+0xa0/0x178)
7 H% L' R4 \# Q# T( }( d5 J[ 6.318137] r8:c0567998 r7:00000013 r6:c001baf0 r5:c055120c r4:c057e84c T: O) l( ]! q9 r7 z9 r; r% D
[ 6.324958] [<c000874c>] (do_one_initcall+0x0/0x178) from [<c0551288>] (kernel_init+0x7c/0x124)
0 a" X% F' ?5 ]; M+ A% L0 e8 T8 C[ 6.333766] [<c055120c>] (kernel_init+0x0/0x124) from [<c001baf0>] (do_exit+0x0/0x720)
# M g2 |# A5 G[ 6.341738] r5:c055120c r4:00000000
# T( W' J: N0 K& W[ 6.345365] Code: e58c2010 e5943000 e58c300c e59533f8 (e783c102) * a/ f& M7 k6 S E) \- v2 b
[ 6.351895] ---[ end trace c93823a902b142fe ]---) ]( ?, P; ^+ k, s4 n" ^
[ 6.356612] Kernel panic - not syncing: Attempted to kill init!6 g0 A/ E7 s8 t7 N
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|手机版|小黑屋|嵌入式开发者社区
( 粤ICP备15055271号 ) 
发表于 2015-8-13 09:10:12
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