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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:
4 c5 O) ?0 |* v$ x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: 1 m2 [# d% R. _( K: d
U-Boot > setenv bootcmd 'mmcinfo;mmc init;fatload mmc 0 c0700000 uImage;bootm'
2 q# Y( j# X4 M( V) k. c4 h. s U-Boot > setenv bootargs console=ttyS2,115200n8 root=/dev/mmcblk0p2 rw rootfstype=ext3 mem=128M- L+ i5 D4 M7 y6 N9 v
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从FLASH启动:
# W- [3 ~+ F2 [4 }' \4 n4 Q$ a2 c在U-Boot命令行执行以下命令来设置为NAND FLASH启动系统。 3 L# H* Q; p' A# J
U-Boot > setenv bootcmd 'nboot.e 0xc0700000 0 0x120000; bootm'
+ S' E9 H4 t& xU-Boot > setenv bootargs 'console=ttyS2,115200n8 ip=off ubi.mtd=4,2048 root=ubi0_0 rootfstype=ubifs mem=32M@0xc0000000 mem=64M@0xc4000000'
9 r* e0 K1 H# K U-Boot > saveenv0 g$ S" R" J: E; p- ]4 f
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% g, p3 u0 @% k7 O- L! ^% ~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?' z& n( j: B& z" g9 W( H w7 d
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
! Y6 B6 h( \ @, Xsleep 5
$ X5 c7 }1 w5 ] Zreboot' q' O3 h/ a5 T% k5 Z: U+ _
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,
! z( ]" m1 d$ A: ~& o$ w. r0 g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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* @3 x# P4 x0 N' q[ 2.637774] UBI: attaching mtd4 to ubi0
2 f( V. y: M' ?* ^[ 2.641673] UBI: physical eraseblock size: 131072 bytes (128 KiB)
. f5 X X0 d! E9 h# n[ 2.648283] UBI: logical eraseblock size: 126976 bytes7 O' I+ g0 @7 o. g1 l+ J$ T3 x
[ 2.653769] UBI: smallest flash I/O unit: 2048
: r. }+ h6 L0 ^* V1 b8 ?& X[ 2.658648] UBI: sub-page size: 512
, a: o) g8 w3 `" \[ 2.663309] UBI: VID header offset: 2048 (aligned 2048)* w x6 O# _ S3 v7 u5 H5 G
[ 2.669464] UBI: data offset: 40965 B9 `' |9 |% `
[ 6.060848] UBI: max. sequence number: 2386299
$ O$ C( T7 E7 [+ u8 I! a8 J[ 6.083946] Unable to handle kernel paging request at virtual address 872281a4
! p; O5 J) q5 a[ 6.091390] pgd = c0004000: o( }8 k8 W5 W( U- J! P
[ 6.094134] [872281a4] *pgd=00000000
+ v' ]3 y) w" N1 z[ 6.097850] Internal error: Oops: 805 [#1] PREEMPT
( O4 Q7 u/ R* H9 z$ x[ 6.102678] Modules linked in:
6 g/ E' R/ _+ E* f[ 6.105775] CPU: 0 Not tainted (3.3.0 #15)
$ o& D. P, m. Z" `[ 6.110284] PC is at ubi_wl_init_scan+0x218/0x31c! X% f0 ]# l4 C' W3 {
[ 6.115032] LR is at ubi_wl_init_scan+0x1f8/0x31c
( `. i# p% b, g+ n# T[ 6.119777] pc : [<c0240324>] lr : [<c0240304>] psr: a0000013
7 l% s* ~6 f$ N3 Y% Y" o9 q[ 6.119794] sp : c7835e40 ip : c7b6fc90 fp : c7835e6c
- m } X( {, _% _+ z) r, b[ 6.131337] r10: c7950b78 r9 : c05cbd68 r8 : c7950b84- }7 f* y/ G+ o H8 D+ U
[ 6.136600] r7 : c7b9e860 r6 : c7bb0090 r5 : c7950800 r4 : c7bb0078
" e0 ^$ q3 u6 ~) T1 U. U: ^# h7 @/ y[ 6.143174] r3 : c7b68000 r2 : afdb0069 r1 : c7950b78 r0 : c7b6fc907 C1 i K* {+ i* I9 P2 h, Q s4 S
[ 6.149751] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
8 A3 Z4 f; r( @/ a- P% j5 T[ 6.157111] Control: 0005317f Table: c0004000 DAC: 00000017
8 l* k. l# [/ }- G8 ?8 A( D7 d[ 6.162898] Process swapper (pid: 1, stack limit = 0xc7834270)1 V4 q- n( R$ V6 N4 m8 b3 c) R
[ 6.168773] Stack: (0xc7835e40 to 0xc7836000) O |: Z4 A. ?/ Q; q
[ 6.173179] 5e40: 00000081 00000000 c7950800 c7906a80 00000000 00000000 00000000 00000000
9 r% [/ c k# r7 P2 L6 ^6 Y[ 6.181433] 5e60: c7835f64 c7835e70 c023a224 c024011c c7835eb4 c7835e80 c7835eb4 c7b9ce00
9 B8 ~+ R+ ]* A6 g- H[ 6.189685] 5e80: c00e380c c0407108 c7835eb4 c7835e98 c00e2ea4 c00e2d28 00000000 c794cfa0
6 F8 t, K* d; ?% a7 R5 M8 ~+ m[ 6.197935] 5ea0: 00000000 c78c6320 c7835ef4 c7835eb8 c00e40ac c00e3800 00000000 c7835ed0
; v P) d! Z4 i2 F1 F7 x5 m[ 6.206188] 5ec0: c7835ef4 c7835ed0 c78c6320 00000000 c05bb8a4 c780ec00 c04f7caa 00000000
. W6 q0 u* T9 }9 S( V[ 6.214442] 5ee0: 00000014 c04f7caa c7835f04 c7835ef8 c780ec00 00000018 c7835f38 c057c08c' Y7 x$ F* \1 Q, A% o( C1 ?
[ 6.222691] 5f00: 00000014 c7835f7c c057c08c c057c08c 00000000 00000000 00000000 00000000# E6 r N. l/ E4 ~% E
[ 6.230941] 5f20: c7835f54 c7835f30 c01a327c c01a739c 00000000 0000000a c7b9ce00 c05cbce8
7 |5 g E3 X/ t/ u- | ?[ 6.239191] 5f40: c7b9ce00 c057c08c 00000000 00000000 00000000 00000000 c7835fa4 c7835f68, U. U1 K' u& q9 a b" W
[ 6.247444] 5f60: c0567b60 c0239d70 00000000 c7835f78 c01ed618 c01ed5a8 c057e848 c057c08d0 t+ _) |3 T/ g7 Q8 [* ~/ e; u
[ 6.255695] 5f80: c001baf0 c057e84c c055120c c001baf0 00000013 c0567998 c7835fdc c7835fa8
4 i3 _6 ]* @% l2 F# |[ 6.263949] 5fa0: c00087ec c05679a8 c7835fc4 c7835fb8 c0038acc c01a06e8 c057e84c c055120c9 T& `- C' O1 Y
[ 6.272200] 5fc0: c001baf0 00000013 00000000 00000000 c7835ff4 c7835fe0 c0551288 c000875c, P! N8 m/ Q b
[ 6.280451] 5fe0: 00000000 c055120c 00000000 c7835ff8 c001baf0 c055121c 00004010 00005019/ v5 e8 @* R/ K4 k9 _2 M
[ 6.288678] Backtrace:
/ P% }' X) \ ?" W( \8 W# n) {[ 6.291178] [<c024010c>] (ubi_wl_init_scan+0x0/0x31c) from [<c023a224>] (ubi_attach_mtd_dev+0x4c4/0xb24)
' T- n7 N/ u# L( R4 q" K+ l0 x6 b[ 6.300767] [<c0239d60>] (ubi_attach_mtd_dev+0x0/0xb24) from [<c0567b60>] (ubi_init+0x1c8/0x2d4): k# D: S* e0 T, P
[ 6.309642] [<c0567998>] (ubi_init+0x0/0x2d4) from [<c00087ec>] (do_one_initcall+0xa0/0x178)* B) A" t, r+ t: F$ M
[ 6.318137] r8:c0567998 r7:00000013 r6:c001baf0 r5:c055120c r4:c057e84c+ d H) N8 U; ~3 d5 S
[ 6.324958] [<c000874c>] (do_one_initcall+0x0/0x178) from [<c0551288>] (kernel_init+0x7c/0x124)
( m* E- ^+ v( F% h[ 6.333766] [<c055120c>] (kernel_init+0x0/0x124) from [<c001baf0>] (do_exit+0x0/0x720)
; `) u/ N8 ^9 @- A; _$ _$ O5 L( f' l[ 6.341738] r5:c055120c r4:00000000
; ` f, b+ D U: q[ 6.345365] Code: e58c2010 e5943000 e58c300c e59533f8 (e783c102)
# [9 d6 G. b0 r[ 6.351895] ---[ end trace c93823a902b142fe ]---
t1 _7 {% M3 X# y* o[ 6.356612] Kernel panic - not syncing: Attempted to kill init!
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