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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 y8 B9 r/ w" p
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: ; B) u; E/ k! i$ P) p/ g) q1 E
U-Boot > setenv bootcmd 'mmcinfo;mmc init;fatload mmc 0 c0700000 uImage;bootm'
" O* z' p! z* N! A U-Boot > setenv bootargs console=ttyS2,115200n8 root=/dev/mmcblk0p2 rw rootfstype=ext3 mem=128M
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从FLASH启动:& F5 M$ Q% w n$ N
在U-Boot命令行执行以下命令来设置为NAND FLASH启动系统。
7 a5 }) `! U+ L1 c/ iU-Boot > setenv bootcmd 'nboot.e 0xc0700000 0 0x120000; bootm' 9 |, P, K( C) Z
U-Boot > setenv bootargs 'console=ttyS2,115200n8 ip=off ubi.mtd=4,2048 root=ubi0_0 rootfstype=ubifs mem=32M@0xc0000000 mem=64M@0xc4000000'
' L, ]4 r' k A U-Boot > saveenv7 X% M% w$ x' p- K) k1 f
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* s/ K4 O1 t' C$ s0 c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?
+ C* U' Y h% X$ c& M3 i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 % q, b6 n. i1 ]+ j; ^! k
sleep 5% R3 O y9 H3 B- k9 g* `* z# W$ A
reboot7 t3 A+ K2 ?/ G0 U6 H! p
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,
7 Y: p3 F$ N& p+ n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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[ 2.637774] UBI: attaching mtd4 to ubi0' i+ x, g$ y0 P* X G2 X+ G
[ 2.641673] UBI: physical eraseblock size: 131072 bytes (128 KiB)
/ o2 v+ V* D6 P6 p0 S[ 2.648283] UBI: logical eraseblock size: 126976 bytes
- C) A) B5 Z$ j& c& j[ 2.653769] UBI: smallest flash I/O unit: 2048# U9 O/ N1 y) Y) T8 s
[ 2.658648] UBI: sub-page size: 5129 P; M1 ^* Q' ^& C6 A+ S2 y7 u
[ 2.663309] UBI: VID header offset: 2048 (aligned 2048)
2 W8 Q# o" P2 O' g[ 2.669464] UBI: data offset: 4096
1 H6 V1 h; B) ^% y T. d[ 6.060848] UBI: max. sequence number: 23862993 `6 d- B; v# L; _$ I& s8 m/ U
[ 6.083946] Unable to handle kernel paging request at virtual address 872281a4
; O. U: M' ?( F[ 6.091390] pgd = c0004000( b& K- x: r3 c) E7 v
[ 6.094134] [872281a4] *pgd=000000001 F) v6 \2 F2 Q
[ 6.097850] Internal error: Oops: 805 [#1] PREEMPT- K. N$ v8 W% J8 _& E1 ^) z
[ 6.102678] Modules linked in:1 N2 J z' k; j6 a/ |3 g- @
[ 6.105775] CPU: 0 Not tainted (3.3.0 #15). N8 c$ r% c- q& A a# @
[ 6.110284] PC is at ubi_wl_init_scan+0x218/0x31c1 e' X% |" l& q1 r1 D: G
[ 6.115032] LR is at ubi_wl_init_scan+0x1f8/0x31c
h; ^" P6 a: H' | `- V3 u[ 6.119777] pc : [<c0240324>] lr : [<c0240304>] psr: a00000138 l* f$ q4 H1 ^4 t2 I
[ 6.119794] sp : c7835e40 ip : c7b6fc90 fp : c7835e6c) S7 i. A' X6 _ `
[ 6.131337] r10: c7950b78 r9 : c05cbd68 r8 : c7950b84% s" p; P: [ C5 I5 z% @) `
[ 6.136600] r7 : c7b9e860 r6 : c7bb0090 r5 : c7950800 r4 : c7bb0078
- c9 |# x$ E! x" _# p9 t9 d; h& P/ [. p[ 6.143174] r3 : c7b68000 r2 : afdb0069 r1 : c7950b78 r0 : c7b6fc90
8 {2 Q7 i& @1 X- L& j[ 6.149751] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel, x$ f$ u" n+ N$ a- {0 r* o# F5 v
[ 6.157111] Control: 0005317f Table: c0004000 DAC: 00000017+ _: x5 d5 d8 |
[ 6.162898] Process swapper (pid: 1, stack limit = 0xc7834270)/ E% z# h, @* G+ v2 B: S
[ 6.168773] Stack: (0xc7835e40 to 0xc7836000)4 {" ]# W/ Z0 b
[ 6.173179] 5e40: 00000081 00000000 c7950800 c7906a80 00000000 00000000 00000000 000000001 f4 m3 `+ g, g2 C6 x" T
[ 6.181433] 5e60: c7835f64 c7835e70 c023a224 c024011c c7835eb4 c7835e80 c7835eb4 c7b9ce00
8 j! z, S: O) {9 O[ 6.189685] 5e80: c00e380c c0407108 c7835eb4 c7835e98 c00e2ea4 c00e2d28 00000000 c794cfa0
5 L# ~; S. A4 {" |% c- F. @6 c m[ 6.197935] 5ea0: 00000000 c78c6320 c7835ef4 c7835eb8 c00e40ac c00e3800 00000000 c7835ed0 |' n7 i. s5 ~+ h) n
[ 6.206188] 5ec0: c7835ef4 c7835ed0 c78c6320 00000000 c05bb8a4 c780ec00 c04f7caa 00000000) n/ ^! V" N- d' c7 e5 T/ {: O
[ 6.214442] 5ee0: 00000014 c04f7caa c7835f04 c7835ef8 c780ec00 00000018 c7835f38 c057c08c) M6 V" J; g& H& j0 w( \
[ 6.222691] 5f00: 00000014 c7835f7c c057c08c c057c08c 00000000 00000000 00000000 00000000
c7 h6 ]/ q; G% m[ 6.230941] 5f20: c7835f54 c7835f30 c01a327c c01a739c 00000000 0000000a c7b9ce00 c05cbce8
. ]/ @. [. h- t[ 6.239191] 5f40: c7b9ce00 c057c08c 00000000 00000000 00000000 00000000 c7835fa4 c7835f68
! n( d$ l( P& [6 ?/ X& E5 R& V o/ i; Y[ 6.247444] 5f60: c0567b60 c0239d70 00000000 c7835f78 c01ed618 c01ed5a8 c057e848 c057c08d( E! `7 J& X' C0 O
[ 6.255695] 5f80: c001baf0 c057e84c c055120c c001baf0 00000013 c0567998 c7835fdc c7835fa8
/ E* T! d6 P. O2 G3 g$ |[ 6.263949] 5fa0: c00087ec c05679a8 c7835fc4 c7835fb8 c0038acc c01a06e8 c057e84c c055120c
. c9 ~4 [5 F' m7 p[ 6.272200] 5fc0: c001baf0 00000013 00000000 00000000 c7835ff4 c7835fe0 c0551288 c000875c; s1 {$ F% f4 e( L
[ 6.280451] 5fe0: 00000000 c055120c 00000000 c7835ff8 c001baf0 c055121c 00004010 000050192 q9 l8 F% a, R, f
[ 6.288678] Backtrace:
; B H) }2 L! U6 G: a5 m[ 6.291178] [<c024010c>] (ubi_wl_init_scan+0x0/0x31c) from [<c023a224>] (ubi_attach_mtd_dev+0x4c4/0xb24)
& B* ^: H2 D2 A7 B5 a* ~- a% H[ 6.300767] [<c0239d60>] (ubi_attach_mtd_dev+0x0/0xb24) from [<c0567b60>] (ubi_init+0x1c8/0x2d4)
0 B5 L6 S/ f( J) h) V" u3 k[ 6.309642] [<c0567998>] (ubi_init+0x0/0x2d4) from [<c00087ec>] (do_one_initcall+0xa0/0x178). Q; X! Q- j* v9 _
[ 6.318137] r8:c0567998 r7:00000013 r6:c001baf0 r5:c055120c r4:c057e84c
. i# D. ]# [7 s[ 6.324958] [<c000874c>] (do_one_initcall+0x0/0x178) from [<c0551288>] (kernel_init+0x7c/0x124)9 e# ^+ ~; X1 ]7 c! ?8 w
[ 6.333766] [<c055120c>] (kernel_init+0x0/0x124) from [<c001baf0>] (do_exit+0x0/0x720)
/ ` T8 G4 |. o/ ?2 l# B" c[ 6.341738] r5:c055120c r4:00000000
! X4 ]1 L1 O. I, J% Q[ 6.345365] Code: e58c2010 e5943000 e58c300c e59533f8 (e783c102)
4 d5 E! }6 L6 v }[ 6.351895] ---[ end trace c93823a902b142fe ]---
' ]5 w: k1 K2 C6 W4 }[ 6.356612] Kernel panic - not syncing: Attempted to kill init!
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