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板凳

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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?- w3 q; c9 `7 G
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root@tl:/home# ./vpif_mmap_loopback_sd -c 2 -d 0 -w 1 -m 2
0 S# }( A* X! w4 g( qCAMERA capture% C0 {! r1 h( }. F4 c4 J; Q
input_device /dev/video0
" Y3 ]! ]" a% q% r9 ~' O( dCamera-Camera
3 j: b1 T1 L# |/ n2 Mfmt->fmt.pix.bytesperline(1600),fmt->fmt.pix.sizeimage(960000)7 t3 \$ i; a7 }0 }* B
fmt->fmt.pix.pixelformat(50424752),V4L2_PIX_FMT_YUV422P(50323234),V4L2_PIX_FMT_RGB565(50424752)
" z9 H5 C% y4 d; D/ |! o* mfmt->fmt.pix.bytesperline(1600),fmt->fmt.pix.sizeimage(960000)% G$ X A9 x a$ r: a
capture_buff_info[0].length = 4147200" w$ |! I- W& s; b+ }
capture_buff_info[0].index = 0% F: B7 F- Q& u4 G$ N
capture_buff_info[0].start = 0xb6b40000
" W4 M. n) B$ e9 \. n[ 74.316779] vpif_mmap_loopb: page allocation failure: order:10, mode:0xd00 H8 Y u0 a3 R4 x0 D0 D. I, m
[ 74.323663] Backtrace:
2 C# F m* `4 u; L, i k. n- Y7 R[ 74.333553] [<c000c1a8>] (dump_backtrace+0x0/0x110) from [<c0408194>] (dump_stack+0x18/0x1c); @; p# t" _# a) n1 I
[ 74.356223] r6:00000000 r5:000000d0 r4:00000001 r3:20000093
5 @+ n$ o: d+ q0 f1 D5 U[ 74.362055] [<c040817c>] (dump_stack+0x0/0x1c) from [<c005dc50>] (warn_alloc_failed+0xf4/0x118)
! @2 S0 D3 e7 O& p[ 74.386451] [<c005db5c>] (warn_alloc_failed+0x0/0x118) from [<c0060764>] (__alloc_pages_nodemask+0x578/0x5d8)
* F9 d7 d& A x$ D# }- C[ 74.406178] r3:c71fbd1c r2:00000000
$ K9 E" @( P7 o- R, z, Q[ 74.409822] r7:c05bd478 r6:c71fa000 r5:0000000a r4:000000d0
) z9 J# Y( }7 b5 e( N[ 74.415828] [<c00601ec>] (__alloc_pages_nodemask+0x0/0x5d8) from [<c000df0c>] (__dma_alloc+0xd8/0x2ec)
, |& Q0 g9 j$ }2 k[ 74.447742] [<c000de34>] (__dma_alloc+0x0/0x2ec) from [<c000e1b0>] (dma_alloc_coherent+0x5c/0x68)
. Z9 }5 h1 `% c6 J0 j e$ F+ f[ 74.467181] [<c000e154>] (dma_alloc_coherent+0x0/0x68) from [<c02d5a20>] (__videobuf_mmap_mapper+0xa8/0x180)# W$ z- ?0 G' }" ? a1 d
[ 74.496167] r7:c7182920 r6:c7ba8d90 r5:c71feee4 r4:c72b69a0
$ M5 w; j3 J2 A[ 74.502044] [<c02d5978>] (__videobuf_mmap_mapper+0x0/0x180) from [<c02d36c4>] (videobuf_mmap_mapper+0xc0/0x110)
( S* I+ [3 M6 X' S! N' v[ 74.527223] r8:c708d300 r7:b674b000 r6:c72b69a0 r5:c72b69a0 r4:c7ba8d90
' H a! @$ L9 K. m/ M/ o[ 74.534166] [<c02d3604>] (videobuf_mmap_mapper+0x0/0x110) from [<c02de0bc>] (vpif_mmap+0x40/0x50)9 U0 ], m3 ^3 Y- y) |
[ 74.556197] r5:c7ba8c00 r4:c72b69a0& Z" \7 a7 A1 }( x6 W) W7 S: E
[ 74.559945] [<c02de07c>] (vpif_mmap+0x0/0x50) from [<c02c55f4>] (v4l2_mmap+0x70/0x90)! A( z. f5 {0 w% y- C" Q
[ 74.587055] r5:c71fe580 r4:c79c2e00
4 |2 Y4 h: N+ X. M& B[ 74.590771] [<c02c5584>] (v4l2_mmap+0x0/0x90) from [<c007846c>] (mmap_region+0x268/0x4c0); R. n, n% X. k0 f7 W5 p
[ 74.616153] r6:c71fe580 r5:000000ff r4:c72b69a0 r3:c02c5584
# [# }0 r8 u* l5 [9 O5 U, P[ 74.621976] [<c0078204>] (mmap_region+0x0/0x4c0) from [<c007897c>] (do_mmap_pgoff+0x2b8/0x318)1 G' i$ e+ ?: J K" m. E; |
[ 74.646297] [<c00786c4>] (do_mmap_pgoff+0x0/0x318) from [<c0078a74>] (sys_mmap_pgoff+0x98/0xd0)1 M; y& {, S2 }/ D
[ 74.655109] [<c00789dc>] (sys_mmap_pgoff+0x0/0xd0) from [<c0009440>] (ret_fast_syscall+0x0/0x2c)4 ?1 K# B# _& Y `) n8 E
[ 74.688020] Mem-info:0 U2 l+ }: C: [ H
[ 74.690383] DMA per-cpu:
' u# ]9 E7 Q$ ^5 u: y v+ g' o[ 74.692955] CPU 0: hi: 18, btch: 3 usd: 17; I; W; w8 F [7 w" _
[ 74.700640] active_anon:3001 inactive_anon:46 isolated_anon:0- |$ N4 F& x" [
[ 74.700664] active_file:2684 inactive_file:6310 isolated_file:24
! l1 `' h) k) ~; ^' |[ 74.700684] unevictable:0 dirty:67 writeback:0 unstable:00 d/ Z% T8 }' ?& ]- Z$ D
[ 74.700700] free:7432 slab_reclaimable:505 slab_unreclaimable:739
- `( D- g- V8 R$ J5 U0 M8 Y[ 74.700718] mapped:2376 shmem:141 pagetables:143 bounce:0
: s5 u- H$ |) y/ G [. v[ 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
6 K) N% P; Q! e" d6 x[ 74.846179] lowmem_reserve[]: 0 0 0
# e+ |2 V/ a( }( j# [; y$ c[ 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! I. N6 p% @8 B; y
[ 74.871095] 5393 total pagecache pages
1 c4 o D9 f+ p* L5 f; ^& s[ 74.874878] 0 pages in swap cache9 i* ?: A. ^# I1 F5 n2 B1 g3 r
[ 74.896156] Swap cache stats: add 0, delete 0, find 0/0
: n1 G3 @' S# ~0 m[ 74.901444] Free swap = 0kB
6 Y& z6 n2 D I* T[ 74.904346] Total swap = 0kB8 ?$ n+ B- o. S8 \
[ 74.946799] 49152 pages of RAM9 d: ~' b! S4 t q6 S& `* s# @
[ 74.949901] 25326 free pages! q9 m2 ?1 c6 F8 X( R9 E
[ 74.952803] 3366 reserved pages* H* N6 P- [5 P
[ 74.966186] 2124 slab pages: c P% r3 G, _! e5 j
[ 74.969063] 7387 pages shared' e; m+ d2 y: J" G
[ 74.972058] 0 pages swap cached) Y3 y8 ~* j1 q
[ 74.975243] vpif_capture vpif_capture: dma_alloc_coherent size 4149248 failed
2 c: s3 M0 C" y. Y$ {0 S2 @Cannot mmap = 1 buffer
- u# }2 |8 w7 o/ YError 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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