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face_detect双核通信

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robinluo123

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发表于 2015-11-2 15:59:33 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
root@tl:/face_detect/run# ./run.sh
9 W, n0 c0 [+ u3 m& e, D! k8 g2 w' V9 z6 M4 V  s# n
+ MODULE_NAME=syslink
: G) f* F; m' |% O+ lsmod$ N- b8 x/ \1 `7 w& R- z9 L
+ grep syslink
5 Y7 F9 c! U$ R% |# [; u& F1 i+ '[' 0 -ne 0 ']'
; h& l$ F8 C& K5 I3 I; ]+ ./slaveloader startup DSP ../dsp/bin/debug/server_dsp.xe674
2 d: B" W. c% D2 w5 S  \Attached to slave procId 0.( V( i2 c  [! ^- e, i$ o; ~' r, k
Loading procId 0.
* X, O0 q  l! \Loaded file ../dsp/bin/debug/server_dsp.xe674 on slave procId 0.
6 A( E7 u8 `& X/ K1 Y5 j4 SStarted slave procId 0.9 ?5 |1 S6 ~$ A4 l& G
+ ../host/host_app -qws
! Z# @' M" X2 w# x1 e% e9 m[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
$ |5 V5 B4 ?6 y[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync% l$ n- f5 x# {2 `) X
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
, N% G2 {2 w( F! C[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
& F& |  }9 v. {: a: l, ?2 m: ][TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
. J  k6 y9 i, y2 D: o& A0 B2 h8 L7 r[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
$ L. L, T, |) D/ k  J  V  e9 O[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync+ T# y$ L3 W& U" C# R4 n
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync2 p& a' y9 O; n- i. @
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync& H2 |8 I* b5 Y* b
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
9 F. z; ], Q7 H$ U: y+ o8 O: n7 w[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync" p8 c! }4 O4 B1 G! r
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
( t; M2 g9 }9 a[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync- `& N5 c9 A. E& S
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
4 L+ }. Y  a3 f[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync7 I7 j. c: d% u( B$ U- W' n
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
+ @; I9 x/ \9 Z% `7 h$ P4 Q[DEBUG|resource_sync_wait@resource_sync.c,86] wait resource 1. V/ q2 o, S! R. b2 `
[DEBUG|resource_sync_event_handle@resource_sync.c,45] resource 0 had ready
8 k, b/ @  ]; I8 |- ^[DEBUG|resource_sync_event_handle@resource_sync.c,45] resource 1 had ready
0 m. C% C3 W% G) h[DEBUG|resource_sync_post@resource_sync.c,96] post resource 2 had ready
8 i9 m; A, N7 g; {( gCamera-Camera6 d- k" \! `% T# _! z
[   76.366400] host_app: page allocation failure: order:10, mode:0xd0: h1 n$ c( X+ p5 R  Z8 }6 j
[   76.377606] Backtrace: 4 m$ g9 j5 ^9 d8 A7 g
[   76.380222] [<c000c580>] (dump_backtrace+0x0/0x114) from [<c0419474>] (dump_stack+0x18/0x1c)
1 C: o9 q0 T3 b- Y- E1 K[   76.397060]  r7:00000000 r6:0000000a r5:000000d0 r4:00000001
" D# d& d1 a* |% S8 |3 Z9 ?[   76.403249] [<c041945c>] (dump_stack+0x0/0x1c) from [<c0061e0c>] (warn_alloc_failed+0xf8/0x11c)
0 j: b7 E/ _1 ^0 q# h2 D[   76.412099] [<c0061d14>] (warn_alloc_failed+0x0/0x11c) from [<c006237c>] (__alloc_pages_nodemask+0x54c/0x590)
) ]% Y4 ~) s* _( U8 v[   76.425768]  r3:00000000 r2:00000000! @* ~- {; a5 @7 \  n5 T
[   76.429410]  r7:00000040 r6:00000035 r5:000000d0 r4:000000007 c  }8 e6 b  M+ x1 H
[   76.436700] [<c0061e30>] (__alloc_pages_nodemask+0x0/0x590) from [<c000e030>] (__dma_alloc+0xec/0x2fc)
8 M/ t. e0 q: q$ _[   76.448512] [<c000df44>] (__dma_alloc+0x0/0x2fc) from [<c000e2d0>] (dma_alloc_coherent+0x5c/0x68)8 }0 w  V+ r( L7 {% G
[   76.459091] [<c000e274>] (dma_alloc_coherent+0x0/0x68) from [<c02e2a4c>] (__videobuf_mmap_mapper+0xac/0x188)
, w* a; X0 l, [& ]8 y[   76.470521]  r7:c1bded90 r6:c1113b80 r5:c12d1b00 r4:c1113be4+ G+ K$ k. |& }
[   76.476678] [<c02e29a0>] (__videobuf_mmap_mapper+0x0/0x188) from [<c02e0724>] (videobuf_mmap_mapper+0xd4/0x114)2 t: m! b4 n+ Y( m
[   76.489213]  r8:b52dc000 r7:c1113380 r6:c12d1b00 r5:c1bded90 r4:c12d1b00. _( k1 q9 i; H& B! N9 ?
[   76.496486] [<c02e0650>] (videobuf_mmap_mapper+0x0/0x114) from [<c02eb1fc>] (vpif_mmap+0x40/0x50)! B5 Q( N3 ]' y5 u
[   76.507848]  r5:c12d1b00 r4:c1bdec00
+ Q, ~0 X' c; u8 f% D" E[   76.511602] [<c02eb1bc>] (vpif_mmap+0x0/0x50) from [<c02d20e4>] (v4l2_mmap+0x70/0x90)
& e7 d/ {- z. Y' g* B' ~) v[   76.521828]  r5:c1bffe00 r4:c1113380  i0 g3 T7 H! [3 L! ?, m8 L, z: g
[   76.526209] [<c02d2074>] (v4l2_mmap+0x0/0x90) from [<c007a8f0>] (mmap_region+0x25c/0x494)
. U+ |; X. q5 ~4 O[   76.536792]  r7:c1113380 r6:000000ff r5:c12d1b00 r4:00000000
. Q3 X# V1 H' R" G- F[   76.542984] [<c007a694>] (mmap_region+0x0/0x494) from [<c007adec>] (do_mmap_pgoff+0x2c4/0x324)/ b% d. c) ]& _
[   76.551694] [<c007ab28>] (do_mmap_pgoff+0x0/0x324) from [<c007aeec>] (sys_mmap_pgoff+0xa0/0xd0)
7 G/ @* q' a: H, ?% Q/ j[   76.563987] [<c007ae4c>] (sys_mmap_pgoff+0x0/0xd0) from [<c0009440>] (ret_fast_syscall+0x0/0x2c)$ {+ @4 s7 X6 E% h& P& p
[   76.574327] Mem-info:/ e( o8 i& b. [
[   76.576657] DMA per-cpu:
: ]. t( ~4 x9 n2 _! V# I4 O$ i4 A[   76.579223] CPU    0: hi:    0, btch:   1 usd:   09 F9 m, D( d) F- C. A& }
[   76.587174] active_anon:1430 inactive_anon:35 isolated_anon:0
7 x$ o8 ]+ l! n( F! P! \[   76.587198]  active_file:867 inactive_file:896 isolated_file:0
) O& C5 m& Q. v3 r; t[   76.587216]  unevictable:0 dirty:0 writeback:0 unstable:01 C* o) i( {# B7 Y
[   76.587232]  free:258 slab_reclaimable:286 slab_unreclaimable:789/ o* K0 f8 j" k. Z. R
[   76.587251]  mapped:1276 shmem:132 pagetables:122 bounce:09 ^: t: _' e, {, y8 s
[   76.620851] DMA free:1032kB min:720kB low:900kB high:1080kB active_anon:5720kB inactive_anon:140kB active_file:3468kB inactive_file:3584kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:32512kB mlocked:0kB dirty:0kB writeback:0kB mapped:5104kB shmem:528kB slab_reclaimable:1144kB slab_unreclaimable:3156kB kernel_stack:536kB pagetables:488kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
0 N( N6 Z7 B8 {- S[   76.661444] lowmem_reserve[]: 0 0 0& h; b( J  j  B: `& p! {
[   76.665355] DMA: 81*4kB 8*8kB 1*16kB 1*32kB 0*64kB 1*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 1076kB
, G( l' V( T$ c* W[   76.677034] 1884 total pagecache pages$ R. Q( p( C5 Z6 F6 ~
[   76.680817] 0 pages in swap cache
1 |4 M1 y* X; F[   76.687285] Swap cache stats: add 0, delete 0, find 0/0  X# Y6 t! h7 W& z* y9 o( K
[   76.693996] Free swap  = 0kB! {' u( S" J9 n4 T" J% T
[   76.696926] Total swap = 0kB6 V: F% ]' p5 E
[   76.701578] 8192 pages of RAM. d0 O; {/ d7 A; q/ i7 A" Q
[   76.707668] 405 free pages0 j7 R' p' \8 m5 U, L
[   76.710418] 1555 reserved pages
& d2 M& u- v' y[   76.715882] 838 slab pages
/ V- ?3 M* `8 y/ X/ f[   76.718631] 1851 pages shared
+ n% j' t- s! C- E3 l% p4 Z/ C[   76.721620] 0 pages swap cached
& ^9 Q2 R3 _. V# x) H: s8 u. Y[   76.728009] vpif_capture vpif_capture: dma_alloc_coherent size 4149248 failed- R4 R3 W& e3 P. o
Cannot mmap = 0 buffer
  ?* X  l' M- @3 D+ h6 }" uVIDIOC_STREAMON" |3 y; ?, ?0 V, i
: Input/output error
3 K1 s1 {4 }$ k0 n* U! h! T7 `* t* O[ERROR|start@capturer.cpp,27] fail to start capture% v: b# H9 F+ Q, S. W1 V1 U2 S6 H
QThread::start: Thread creation error: Resource temporarily unavailable8 m( T3 r! A: }& d
[DEBUG|start@playbacker.cpp,25] it's about to start playback
  l: D5 }2 ?% h3 P9 |* A
) L+ N3 ]: d. Q, [- I+ A用led双核可以，这个demo就不行了，怎么解决啊
  P/ T- ]$ u. ^$ B. \7 L  b6 t0 ^$ K3 W, F% A0 ?
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teddy

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发表于 2015-11-3 09:14:02 | 只看该作者
需要配置vpif的缓存；2 C1 K, _# |& F3 _/ {6 t, H# l
1.vpif capture模式选择，vpif_capture_format值：( n& U3 Q  k7 b+ n2 a# U
HDTV：预留
$ `( W; V: K" N  i* g, j8 ESDTV: TL51470 t4 C6 z/ l- Y( c  P: ^
RAW:TL26403 q) U( A9 s9 {. M+ H- k
2.（ov2640配置分辨率为640*480 = 640*480*2 = 614400）! {8 Q* a! a0 x  Z
vpif_capture.ch0_bufsize=614400" P8 \3 k9 b6 P6 P; X) }. z
例如：
6 `7 ~% }+ t! B1 O1 EU-Boot >      setenv optargs  ${optargs} vpif_capture_format=RAW vpif_capture.ch0_bufsize=614400
% [- D6 Z2 P5 r) |( K7 S说明：optargs变量为参数添加变量，主要给需要添加参数传递给内核。
1 R+ I; f3 S- Q4 B7 Y setenv optargs  ${optargs} vpif_capture_format=SDTV vpif_capture.ch0_bufsize=614400
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robinluo123

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板凳
 楼主| 发表于 2015-11-3 10:22:28 | 只看该作者
da850-panel=TL070A
% }  X: r, J$ j; temac-mode=mii
. U# d1 R9 m( _ethact=DaVinci-EMAC' M$ w+ A% J" R6 P* ]! `/ D
ethaddr=16:01:c0:17:45:e5
5 R' S4 i% |& J% v4 y3 G" I: ?hwconfig=dsp:wake=yes) e) ]9 J6 @9 @) W6 Y& N
ipaddr=10.3.2.99/ z( v9 P3 v+ C
loadaddr=0xc0700000
/ B/ d8 }# I- l3 Y0 \3 H% W4 |5 jloadbootscr=fatload mmc ${mmcdev} ${scraddr} ${bootscr}
9 k$ c/ z2 k/ l1 }! z; D  Qloadimage=fatload mmc ${mmcdev} ${loadaddr} ${bootfile}
/ d+ J6 P" f4 R5 O0 a1 u  @mem_args=mem=32M@0xc0000000 mem=64M@0xc4000000$ q) O) t  A- h; z; n6 M
mmcargs=setenv bootargs ${commonargs} root=${mmcroot} rootfstype=${mmcrootfstype}3 ^9 ^2 s; I) w1 ^4 @$ R" e" T
mmcboot=mmc dev ${mmcdev}; if mmc rescan; then if run loadbootscr; then echo Loaded bootscript from ${bootscr}; source ${scraddr}; fi; if run loadimage; then echo Booting from mmc${mmcdev} ...; run mmcargs; bootm ${loadaddr}; fi; fi;5 k) y( _' x! x# L1 @" S
mmcdev=0- r0 J" A) G! r/ x4 `) u" C
mmcroot=/dev/mmcblk0p2 rw
7 s7 n% n- c3 K3 r. P' z" vmmcrootfstype=ext3 rootwait
& K& F, K1 D& C! B( xmtddevname=env
( v( G/ \/ R- j9 q, pmtddevnum=0, }5 m+ k+ m6 u; _
mtdids=nand0=davinci_nand.0
( ?! X2 @8 {' }& o( s3 l0 omtdparts=mtdparts=davinci_nand.0:128k(env),512k(spl),512k(u-boot),4m(kernel),-(filesystem)
, {+ M: n( {  h; J. T) nnandargs=setenv bootargs ${commonargs} root=${nandroot} rootfstype=${nandrootfstype}
" d! i' c3 _5 ^2 bnandboot=if nboot ${nandbootpart}; then echo Booting from nand ...; run nandargs; bootm ${loadaddr}; fi;
. x( y$ K5 }2 |. k* ^8 ynandbootpart=kernel2 m& `/ n  q6 ?; i8 E  N
nanddev=0$ I8 r' A$ M; Q4 S  Y' p8 Q7 w* y
nandroot=ubi0_0 ubi.mtd=4,2048
. h- \* y4 R2 o+ Bnandrootfstype=ubifs/ J/ m3 R: E/ M
netmask=255.255.255.0/ {' K: V- J- y2 r
nfsargs=setenv bootargs ${commonargs} ip=dhcp root=/dev/nfs nfsroot=${serverip}{nfspath},nolock rw
+ t- ]9 y$ f  W* v6 a( Qoptargs=vpif_capture_format=SDTV vpif_capture.ch0_bufsize=614400/ ?" R; L; s* w! z1 b( @. O- |3 }9 o
partition=nand0,07 j4 z5 }) h/ U
scraddr=0xc0600000
. e. }8 G5 Q& h% z+ C( Nserverip=10.3.2.175
  e7 I8 y* u, E" }& `% o5 tspiboot=if sf probe ${spidev}; then sf read ${loadaddr} ${spibootaddr} ${spibootsize}; run nandargs; bootm ${loadaddr}; fi;
3 X+ P; p* N, i3 o% Aspibootaddr=0x100000: {% y) }! [3 ^) T
spibootsize=0x400000
* l/ v( j$ U) E6 Q$ v8 T' e0 ~spidev=0% H) |/ G1 V2 [7 ^  r/ W- P! J
stderr=serial
7 v, \% K7 p& U! Gstdin=serial4 h, G1 N1 l3 b  u
stdout=serial% N# r+ Q  z- T  i
ver=U-Boot 2012.04.01-00059-g7363edf (Apr 21 2015 - 18:15:15)) M; K6 K7 b) m
( F) [( ]+ g1 `
- E, [& _1 m+ a+ I1 F
还是不行4 f7 f$ b6 e% I

1 T: M& R$ _' Q" G
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地板
 楼主| 发表于 2015-11-3 10:23:08 | 只看该作者
Started slave procId 0.3 Y  U$ `" g: _4 s( }4 @7 R6 s
+ ../host/host_app -qws# B, P8 ^, z: F& ~7 F5 N- \
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync+ X+ ^2 |- C0 f, e. v- F
[DEBUG|resource_sync_wait@resource_sync.c,86] wait resource 1
8 W& t4 \. ^# g6 J[DEBUG|resource_sync_event_handle@resource_sync.c,45] resource 0 had ready
' n7 s' C$ t+ w1 Y+ `[DEBUG|resource_sync_event_handle@resource_sync.c,45] resource 1 had ready
5 j1 ]; k7 o2 n  {! G  I/ p5 |[DEBUG|resource_sync_post@resource_sync.c,96] post resource 2 had ready* O2 X. B; _) P& M9 L
Camera-Camera
0 Q2 F' ]% u9 m3 R- B[   34.616261] host_app: page allocation failure: order:10, mode:0xd0
. J4 e) S2 U- j* G( [4 r[   34.627157] Backtrace:
0 ~; m% G7 R/ B& K/ ][   34.630203] [<c000c580>] (dump_backtrace+0x0/0x114) from [<c0419474>] (dump_stack+0x18/0x1c)
" L6 E  j9 P) v, U% m3 Q[   34.652340]  r7:00000000 r6:0000000a r5:000000d0 r4:000000014 L9 b' q( g1 P/ ?4 K
[   34.658528] [<c041945c>] (dump_stack+0x0/0x1c) from [<c0061e0c>] (warn_alloc_failed+0xf8/0x11c)2 |  C; K! V6 K8 m+ [" W2 m
[   34.669739] [<c0061d14>] (warn_alloc_failed+0x0/0x11c) from [<c006237c>] (__alloc_pages_nodemask+0x54c/0x590)
4 H) p; ~% u7 b8 {* J5 I. w[   34.681238]  r3:00000000 r2:000000004 R# D# b& J& v; F
[   34.685216]  r7:00000040 r6:00000035 r5:000000d0 r4:000000007 U7 Q/ Q" G& \2 Y3 _2 ?
[   34.691084] [<c0061e30>] (__alloc_pages_nodemask+0x0/0x590) from [<c000e030>] (__dma_alloc+0xec/0x2fc)2 ^2 F- R" w2 b) B. O0 W/ P
[   34.703957] [<c000df44>] (__dma_alloc+0x0/0x2fc) from [<c000e2d0>] (dma_alloc_coherent+0x5c/0x68)* l+ y+ G; W$ i" g. Z; Q  f1 }  `" @# `
[   34.714824] [<c000e274>] (dma_alloc_coherent+0x0/0x68) from [<c02e2a4c>] (__videobuf_mmap_mapper+0xac/0x188)3 s# X5 e5 [7 V3 @& N  Q. D
[   34.726242]  r7:c1bded90 r6:c1371700 r5:c12bd688 r4:c1371764, T) b8 a8 I1 P" x
[   34.732056] [<c02e29a0>] (__videobuf_mmap_mapper+0x0/0x188) from [<c02e0724>] (videobuf_mmap_mapper+0xd4/0x114)  Y9 M: E: w: e0 K# e6 i9 G
[   34.744717]  r8:b5317000 r7:c1371280 r6:c12bd688 r5:c1bded90 r4:c12bd688
4 _, e4 f- @/ H" W9 L: v0 M& C[   34.751646] [<c02e0650>] (videobuf_mmap_mapper+0x0/0x114) from [<c02eb1fc>] (vpif_mmap+0x40/0x50)
# }) Y) I$ [5 H$ m- J[   34.763159]  r5:c12bd688 r4:c1bdec00
) s! p* P5 D  ~- q4 Y[   34.766879] [<c02eb1bc>] (vpif_mmap+0x0/0x50) from [<c02d20e4>] (v4l2_mmap+0x70/0x90)
  Y4 d' f+ i3 d6 o) B3 }( |[   34.777146]  r5:c1bffe00 r4:c1371280$ ?6 J$ _6 n6 ^3 k- j
[   34.780857] [<c02d2074>] (v4l2_mmap+0x0/0x90) from [<c007a8f0>] (mmap_region+0x25c/0x494)
3 _7 L+ B  B- @2 F) D8 u# W[   34.791444]  r7:c1371280 r6:000000ff r5:c12bd688 r4:00000000
" [3 Y0 f: ?" @; }7 y: \# Y' K0 q7 w[   34.797615] [<c007a694>] (mmap_region+0x0/0x494) from [<c007adec>] (do_mmap_pgoff+0x2c4/0x324)
3 [# s3 a; j1 T9 Y7 Z3 D9 q" f[   34.808680] [<c007ab28>] (do_mmap_pgoff+0x0/0x324) from [<c007aeec>] (sys_mmap_pgoff+0xa0/0xd0)# M1 U4 Z' w' ~$ ?  Y1 t: O- }
[   34.823582] [<c007ae4c>] (sys_mmap_pgoff+0x0/0xd0) from [<c0009440>] (ret_fast_syscall+0x0/0x2c)
' A5 r: l4 u! O5 L! G[   34.842578] Mem-info:) q0 j8 n' J% S$ V1 A+ P
[   34.844908] DMA per-cpu:( |/ R+ V0 G( s( c
[   34.847474] CPU    0: hi:    0, btch:   1 usd:   0
2 X* ^- }+ R4 X7 x4 ^! v. g4 c[   34.852369] active_anon:1439 inactive_anon:35 isolated_anon:0
" U; d: ?0 x# U7 M1 x# i/ j[   34.852388]  active_file:718 inactive_file:601 isolated_file:0' t- W2 V; r- {1 u
[   34.852404]  unevictable:0 dirty:0 writeback:0 unstable:06 {& V7 ^! |1 j
[   34.852420]  free:665 slab_reclaimable:289 slab_unreclaimable:8159 O2 A1 [$ H: D. w9 c2 n' a
[   34.852437]  mapped:1087 shmem:132 pagetables:122 bounce:07 R# ]2 l. c+ `" A" g7 ^
[   34.932674] DMA free:7568kB min:720kB low:900kB high:1080kB active_anon:5756kB inactive_anon:140kB active_file:160kB inactive_file:156kB unevictable:0kB isolated(anon):0kB isolated(file):52kB present:32512kB mlocked:0kB dirty:0kB writeback:0kB mapped:340kB shmem:528kB slab_reclaimable:1156kB slab_unreclaimable:3260kB kernel_stack:536kB pagetables:488kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:13 all_unreclaimable? no7 I/ `, n8 k8 L8 \& G. g* l
[   35.023590] lowmem_reserve[]: 0 0 0: y! U/ m1 {$ b' b
[   35.027205] DMA: 842*4kB 329*8kB 59*16kB 4*32kB 1*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 7648kB$ _/ i" @; G, l4 Z+ n3 x. n+ {( Y
[   35.054676] 214 total pagecache pages" ^1 C. n$ P4 Z, O7 i3 e
[   35.058399] 0 pages in swap cache
; W1 Y3 K7 j6 X+ _  n1 b[   35.061743] Swap cache stats: add 0, delete 0, find 0/0
5 M  I4 N6 N5 C; D2 p, O3 i) T[   35.081983] Free swap  = 0kB6 q- P/ ^) t" M! m( r
[   35.085058] Total swap = 0kB% R. j9 E. Y: J9 }
[   35.089678] 8192 pages of RAM
$ g) _+ |% y# q8 n0 ][   35.103088] 2019 free pages2 z' x$ _4 o9 K2 s- {
[   35.105926] 1555 reserved pages0 T" g& Y7 Q3 n( w  t. D8 L
[   35.109090] 869 slab pages
  l' ]2 X* R: h; p- Q; T[   35.111813] 161 pages shared" r" W1 C7 F. V7 Z
[   35.132854] 0 pages swap cached1 R1 R. q$ g( b, h* r/ O
[   35.136068] vpif_capture vpif_capture: dma_alloc_coherent size 4149248 failed: _7 a( S* R# ~/ w. |
Cannot mmap = 0 buffer7 E, ~5 k0 H; M. u# T
VIDIOC_STREAMON
- N0 n, I. w3 M' u  B) l2 \, x. h: Input/output error/ {8 |2 T1 p# N5 L) u+ o
[ERROR|start@capturer.cpp,27] fail to start capture
  _, |  b3 }2 b8 d1 kQThread::start: Thread creation error: Resource temporarily unavailable3 l2 v  m$ \! ]: \8 n& d2 I
[DEBUG|start@playbacker.cpp,25] it's about to start playback
. w8 ~( x% c& f: Z3 K! j
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teddy

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发表于 2015-11-3 11:17:19 | 只看该作者
你可能用的是128M的内存，所以可能系统内存不够，你用free看看当前系统内存是不是不够。
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robinluo123

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 楼主| 发表于 2015-11-3 11:39:18 | 只看该作者
root@tl:~/face_detect/run# free3 Z4 h; x4 {6 g
             total       used       free     shared    buffers     cached" [4 e- R- ]5 ?: j$ s. x1 y$ I0 f6 M
Mem:         26548      19728       6820          0          0       2884
8 d3 ]2 C1 f4 C0 P$ A7 S1 B-/+ buffers/cache:      16844       9704
# w0 r: R, ?* LSwap:            0          0          0                              
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发表于 2015-11-3 13:47:21 | 只看该作者
内存不够，先关掉一些进程，像matrix-gui，然后在运行你的双核程序。
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