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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：
9 Q! _: R E, |) d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：
5 K0 S' ^, T. w* I6 _U-Boot > setenv bootcmd 'mmcinfo;mmc init;fatload mmc 0 c0700000 uImage;bootm'3 u* P, R, V% p3 o
U-Boot > setenv bootargs console=ttyS2,115200n8 root=/dev/mmcblk0p2 rw rootfstype=ext3 mem=128M4 i0 F9 u2 v4 i- Z
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从FLASH启动：
6 J' @9 K1 i: @/ R在U-Boot命令行执行以下命令来设置为NAND FLASH启动系统。 $ z+ \/ J- k, G6 `0 _
U-Boot > setenv bootcmd 'nboot.e 0xc0700000 0 0x120000; bootm'
, c) v3 w; r; r3 GU-Boot > setenv bootargs 'console=ttyS2,115200n8 ip=off ubi.mtd=4,2048 root=ubi0_0 rootfstype=ubifs mem=32M@0xc0000000 mem=64M@0xc4000000'6 X# I J/ H+ m6 u S4 e4 E
U-Boot > saveenv# W# [, s; z) ~: O
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8 i: g$ X6 U. H3 T" {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？6 K* y5 b; r" B! U2 n: [3 M4 R
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 2 M. Z J7 B! [) _
sleep 5
' Y8 t5 Y0 o; x" T3 x' `5 u$ u1 areboot: R: o9 u$ @/ s
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，2 y$ H, Y4 h# p$ b% i6 y
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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* ?1 J% T" N+ P5 W% @' r/ D[ 2.637774] UBI: attaching mtd4 to ubi0" m7 z) ~+ X# U9 @0 t$ |0 u
[ 2.641673] UBI: physical eraseblock size: 131072 bytes (128 KiB), [ @6 {3 F2 k% g7 J4 b4 ?
[ 2.648283] UBI: logical eraseblock size: 126976 bytes. G# l, q0 R) q6 W" }2 D
[ 2.653769] UBI: smallest flash I/O unit: 2048
5 Z3 p5 g' C7 g( l, H4 q$ \/ W0 V5 n[ 2.658648] UBI: sub-page size: 512. i! Z, c8 e) z) c2 f2 ?- B9 n$ ?1 @
[ 2.663309] UBI: VID header offset: 2048 (aligned 2048)
% ?# d1 v. q3 S, e( D6 d[ 2.669464] UBI: data offset: 40964 i: {& D5 t$ H3 w: T9 e$ J
[ 6.060848] UBI: max. sequence number: 23862999 k8 y" P5 ~% y
[ 6.083946] Unable to handle kernel paging request at virtual address 872281a41 }& q* N/ P) k
[ 6.091390] pgd = c00040001 c2 P5 k2 v9 C( [, E# s* R
[ 6.094134] [872281a4] *pgd=00000000
& G1 s4 Z& a! a9 u[ 6.097850] Internal error: Oops: 805 [#1] PREEMPT
3 T$ t7 N, W8 m* ][ 6.102678] Modules linked in:" @3 H" M* \. |9 @
[ 6.105775] CPU: 0 Not tainted (3.3.0 #15)6 w0 P, |4 {/ X# G/ F
[ 6.110284] PC is at ubi_wl_init_scan+0x218/0x31c7 {3 h: V. T( d; G2 n
[ 6.115032] LR is at ubi_wl_init_scan+0x1f8/0x31c8 S9 X# i! T! U2 S
[ 6.119777] pc : [<c0240324>] lr : [<c0240304>] psr: a0000013
6 [' ]0 ~- @( y; j+ b4 v[ 6.119794] sp : c7835e40 ip : c7b6fc90 fp : c7835e6c; j2 C/ |" V1 k* m0 f2 S3 a
[ 6.131337] r10: c7950b78 r9 : c05cbd68 r8 : c7950b84
5 E( {& O$ v6 \/ o& z# [: H[ 6.136600] r7 : c7b9e860 r6 : c7bb0090 r5 : c7950800 r4 : c7bb0078
2 I4 u7 b# z) \. @6 e[ 6.143174] r3 : c7b68000 r2 : afdb0069 r1 : c7950b78 r0 : c7b6fc90& L2 w1 A v b
[ 6.149751] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
8 y% t5 ?7 Q5 G0 n4 u5 D( S% U$ C[ 6.157111] Control: 0005317f Table: c0004000 DAC: 00000017
v4 M8 v) r: r4 v) Y: W# }[ 6.162898] Process swapper (pid: 1, stack limit = 0xc7834270)
# s. @" R. V1 O. [[ 6.168773] Stack: (0xc7835e40 to 0xc7836000)$ }3 a3 _' n" [
[ 6.173179] 5e40: 00000081 00000000 c7950800 c7906a80 00000000 00000000 00000000 00000000
9 q1 n' l% S: j I9 j* g8 d5 u% B, z[ 6.181433] 5e60: c7835f64 c7835e70 c023a224 c024011c c7835eb4 c7835e80 c7835eb4 c7b9ce00: s4 t Z5 q. Y$ c: A4 ~
[ 6.189685] 5e80: c00e380c c0407108 c7835eb4 c7835e98 c00e2ea4 c00e2d28 00000000 c794cfa0
3 X% {7 P: {' I- l5 a3 |7 X[ 6.197935] 5ea0: 00000000 c78c6320 c7835ef4 c7835eb8 c00e40ac c00e3800 00000000 c7835ed0; H ^% r" h7 |6 p5 @& x3 P
[ 6.206188] 5ec0: c7835ef4 c7835ed0 c78c6320 00000000 c05bb8a4 c780ec00 c04f7caa 00000000+ y/ Y ?, _) \& e9 `1 s$ H; [% h
[ 6.214442] 5ee0: 00000014 c04f7caa c7835f04 c7835ef8 c780ec00 00000018 c7835f38 c057c08c5 ]; J" y* g) L R% m' s3 C1 k% v4 r2 @
[ 6.222691] 5f00: 00000014 c7835f7c c057c08c c057c08c 00000000 00000000 00000000 00000000- U7 g. T3 l- t
[ 6.230941] 5f20: c7835f54 c7835f30 c01a327c c01a739c 00000000 0000000a c7b9ce00 c05cbce84 u; i+ ~9 u0 x
[ 6.239191] 5f40: c7b9ce00 c057c08c 00000000 00000000 00000000 00000000 c7835fa4 c7835f682 m$ o4 T' o- u: S- i
[ 6.247444] 5f60: c0567b60 c0239d70 00000000 c7835f78 c01ed618 c01ed5a8 c057e848 c057c08d
h" r5 g, x# i k) p[ 6.255695] 5f80: c001baf0 c057e84c c055120c c001baf0 00000013 c0567998 c7835fdc c7835fa8
. h/ d! G/ J' M1 V+ q; f[ 6.263949] 5fa0: c00087ec c05679a8 c7835fc4 c7835fb8 c0038acc c01a06e8 c057e84c c055120c
: D: \ L' K: J. ?& ^[ 6.272200] 5fc0: c001baf0 00000013 00000000 00000000 c7835ff4 c7835fe0 c0551288 c000875c
3 Q/ B- n6 v0 D. O7 c$ c[ 6.280451] 5fe0: 00000000 c055120c 00000000 c7835ff8 c001baf0 c055121c 00004010 00005019
) u! F' p" S) N8 K$ m/ ^$ s6 m[ 6.288678] Backtrace: 9 H, t) m$ S6 ^* [* O7 w; m8 i) `: L
[ 6.291178] [<c024010c>] (ubi_wl_init_scan+0x0/0x31c) from [<c023a224>] (ubi_attach_mtd_dev+0x4c4/0xb24)( m. z1 X& S k) w) M
[ 6.300767] [<c0239d60>] (ubi_attach_mtd_dev+0x0/0xb24) from [<c0567b60>] (ubi_init+0x1c8/0x2d4)
% ? L. _- X& l7 z! z2 u( e* c9 z[ 6.309642] [<c0567998>] (ubi_init+0x0/0x2d4) from [<c00087ec>] (do_one_initcall+0xa0/0x178)
8 b, ` N: ?! V {+ A1 w[ 6.318137] r8:c0567998 r7:00000013 r6:c001baf0 r5:c055120c r4:c057e84c4 ?# b; s9 l$ S. o( F
[ 6.324958] [<c000874c>] (do_one_initcall+0x0/0x178) from [<c0551288>] (kernel_init+0x7c/0x124)
; \4 S* e f; W. \4 {1 U[ 6.333766] [<c055120c>] (kernel_init+0x0/0x124) from [<c001baf0>] (do_exit+0x0/0x720); m4 M+ x' m: y( Y. B j
[ 6.341738] r5:c055120c r4:00000000! m3 |: h/ v' i$ x* J, F
[ 6.345365] Code: e58c2010 e5943000 e58c300c e59533f8 (e783c102) $ b( |8 E" a% C! m" J
[ 6.351895] ---[ end trace c93823a902b142fe ]---
/ N8 Y" m9 z4 A[ 6.356612] Kernel panic - not syncing: Attempted to kill init!
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发表于 2015-8-13 09:10:12
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