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板凳
楼主 |
发表于 2016-1-30 11:15:26
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看一下,我把环境变量打印出来了,这样配置是对的吗?% _( i) B0 x! ]
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root@tl:/home# ./vpif_mmap_loopback_sd -c 2 -d 0 -w 1 -m 2
0 q8 _( k5 n: w8 ZCAMERA capture; _$ |+ r$ r" I5 E) k& L* [
input_device /dev/video0' m/ e9 {0 N( N; I5 ~5 b5 i3 r0 V' {
Camera-Camera( R$ W$ T- F; S0 b1 C
fmt->fmt.pix.bytesperline(1600),fmt->fmt.pix.sizeimage(960000)
2 Z% o5 B) R& }) U" i. d! \fmt->fmt.pix.pixelformat(50424752),V4L2_PIX_FMT_YUV422P(50323234),V4L2_PIX_FMT_RGB565(50424752)( N$ L3 r& j/ e$ a7 ^& \
fmt->fmt.pix.bytesperline(1600),fmt->fmt.pix.sizeimage(960000)3 Z$ v! K2 m% M1 O
capture_buff_info[0].length = 4147200" |9 l) q* l7 N% z1 r2 F
capture_buff_info[0].index = 0
4 n) m6 k' I7 Y: ?& x" h5 @capture_buff_info[0].start = 0xb6b40000
f) d" s% U) u7 V6 y[ 74.316779] vpif_mmap_loopb: page allocation failure: order:10, mode:0xd03 ~ L7 k" K* C) h$ f5 P
[ 74.323663] Backtrace: 7 L* C7 u2 c0 ^/ B. {
[ 74.333553] [<c000c1a8>] (dump_backtrace+0x0/0x110) from [<c0408194>] (dump_stack+0x18/0x1c)
) C6 w- q- E3 X! P2 w& H* d: {[ 74.356223] r6:00000000 r5:000000d0 r4:00000001 r3:20000093
3 h$ f) s; \6 x; o: [% Z[ 74.362055] [<c040817c>] (dump_stack+0x0/0x1c) from [<c005dc50>] (warn_alloc_failed+0xf4/0x118)
, J) h1 Q* M$ e R, c/ B" G[ 74.386451] [<c005db5c>] (warn_alloc_failed+0x0/0x118) from [<c0060764>] (__alloc_pages_nodemask+0x578/0x5d8)1 v$ S8 ?5 l8 G2 t
[ 74.406178] r3:c71fbd1c r2:00000000
9 p2 g$ m; s+ |8 c[ 74.409822] r7:c05bd478 r6:c71fa000 r5:0000000a r4:000000d0/ s& |7 e y4 ~0 s6 I
[ 74.415828] [<c00601ec>] (__alloc_pages_nodemask+0x0/0x5d8) from [<c000df0c>] (__dma_alloc+0xd8/0x2ec)
' i/ z5 U- c! b. j% Q6 |& V. t! |[ 74.447742] [<c000de34>] (__dma_alloc+0x0/0x2ec) from [<c000e1b0>] (dma_alloc_coherent+0x5c/0x68)( H* }2 N3 f9 P/ F( V% q, S- K
[ 74.467181] [<c000e154>] (dma_alloc_coherent+0x0/0x68) from [<c02d5a20>] (__videobuf_mmap_mapper+0xa8/0x180)% ^% v4 Z0 W7 X" [/ ?
[ 74.496167] r7:c7182920 r6:c7ba8d90 r5:c71feee4 r4:c72b69a0/ h4 b9 q0 R" x2 H
[ 74.502044] [<c02d5978>] (__videobuf_mmap_mapper+0x0/0x180) from [<c02d36c4>] (videobuf_mmap_mapper+0xc0/0x110)
( z- M9 P& t: E( L1 Y( N[ 74.527223] r8:c708d300 r7:b674b000 r6:c72b69a0 r5:c72b69a0 r4:c7ba8d90& m- I0 [/ X! A' i, w9 t; @
[ 74.534166] [<c02d3604>] (videobuf_mmap_mapper+0x0/0x110) from [<c02de0bc>] (vpif_mmap+0x40/0x50)7 y* [3 {: q9 t3 b+ p- b. G# a
[ 74.556197] r5:c7ba8c00 r4:c72b69a0
0 @. u3 U" v% P7 R[ 74.559945] [<c02de07c>] (vpif_mmap+0x0/0x50) from [<c02c55f4>] (v4l2_mmap+0x70/0x90)! ` d* |* u. r( v* j. y5 E
[ 74.587055] r5:c71fe580 r4:c79c2e003 v6 Q/ @% d/ h3 H) E
[ 74.590771] [<c02c5584>] (v4l2_mmap+0x0/0x90) from [<c007846c>] (mmap_region+0x268/0x4c0)
, G) z, N D% u" H5 T+ F[ 74.616153] r6:c71fe580 r5:000000ff r4:c72b69a0 r3:c02c55847 O2 k2 \" n6 M# r Q3 z
[ 74.621976] [<c0078204>] (mmap_region+0x0/0x4c0) from [<c007897c>] (do_mmap_pgoff+0x2b8/0x318); `- \! i" w; l a4 U1 [# A
[ 74.646297] [<c00786c4>] (do_mmap_pgoff+0x0/0x318) from [<c0078a74>] (sys_mmap_pgoff+0x98/0xd0)
- E: r8 I& H2 v- Z" j9 J[ 74.655109] [<c00789dc>] (sys_mmap_pgoff+0x0/0xd0) from [<c0009440>] (ret_fast_syscall+0x0/0x2c)
9 a4 {1 Y& o* F" e& I0 y) F% s) j[ 74.688020] Mem-info:
# j. v# r( F# ^$ K3 e" N' e! b$ m[ 74.690383] DMA per-cpu: A3 e- o* `2 m7 D
[ 74.692955] CPU 0: hi: 18, btch: 3 usd: 17
3 a9 q* w8 I5 `. Y3 E9 W[ 74.700640] active_anon:3001 inactive_anon:46 isolated_anon:0) e: k' m! ~8 G1 T+ S" ^! ~
[ 74.700664] active_file:2684 inactive_file:6310 isolated_file:24
% m# [( W/ [8 o5 p6 r% |[ 74.700684] unevictable:0 dirty:67 writeback:0 unstable:0$ C6 p. t3 R. R( _
[ 74.700700] free:7432 slab_reclaimable:505 slab_unreclaimable:739; t8 D( t# R5 u5 x6 d0 h$ n% F1 |3 Y
[ 74.700718] mapped:2376 shmem:141 pagetables:143 bounce:0
7 T. N% m& X) n4 s/ P1 l. _[ 74.766255] DMA free:33856kB min:1244kB low:1552kB high:1864kB active_anon:12004kB inactive_anon:188kB active_file:10736kB inactive_file:21200kB unevictable:0kB isolated(anon):0kB isolated(file):20kB present:97280kB mlocked:0kB dirty:268kB writeback:0kB mapped:8372kB shmem:568kB slab_reclaimable:2020kB slab_unreclaimable:2956kB kernel_stack:576kB pagetables:572kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
7 ~1 ^& X h! K[ 74.846179] lowmem_reserve[]: 0 0 05 w, C3 i+ a# k) e9 ?" a& S
[ 74.849759] DMA: 760*4kB 461*8kB 239*16kB 158*32kB 92*64kB 43*128kB 21*256kB 6*512kB 7*1024kB 0*2048kB 0*4096kB = 42616kB
0 T4 v0 L( Y+ E9 M/ t- l! u[ 74.871095] 5393 total pagecache pages
' T# i7 H( ]% W[ 74.874878] 0 pages in swap cache/ I5 x r3 V7 _9 t1 S5 q2 l1 L4 q
[ 74.896156] Swap cache stats: add 0, delete 0, find 0/0& T5 l$ ^- J: r
[ 74.901444] Free swap = 0kB
* p' T- X- r& w0 x[ 74.904346] Total swap = 0kB
, _# z6 g: n3 l/ @[ 74.946799] 49152 pages of RAM
7 a; Q# j! F C: ? j[ 74.949901] 25326 free pages
% N# k) Z/ t" v% X[ 74.952803] 3366 reserved pages/ Q6 l: u( B \1 z5 [# B
[ 74.966186] 2124 slab pages
1 g9 a+ r3 _* A6 M1 D: n[ 74.969063] 7387 pages shared4 W- D) C! I2 Q7 z6 o
[ 74.972058] 0 pages swap cached) @# }& R' D6 B1 W
[ 74.975243] vpif_capture vpif_capture: dma_alloc_coherent size 4149248 failed
. M7 {- G% a5 M+ a. oCannot mmap = 1 buffer1 Z4 t- N# ^/ {
Error in opening capture device for channel 0
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这上面是新的错误提示,请再帮我看看是哪里出了问题,谢谢。
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