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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 , W2 g9 X# B+ g2 c" N# x+ {

0 n9 k9 B/ D4 H: [7 w+ MODULE_NAME=syslink
( W# _  G7 x+ p; q6 G+ lsmod
- A! p! o  m; F& q8 j0 s+ grep syslink
1 ?5 @1 Q7 p0 u# {* M% b7 n; R+ '[' 0 -ne 0 ']'
* X& i4 I8 T7 V% k2 g3 G+ ./slaveloader startup DSP ../dsp/bin/debug/server_dsp.xe6740 u5 H, k0 o4 x# |) ~% ^& V
Attached to slave procId 0.
% k. r& W" j$ @9 t! M; ]Loading procId 0.3 T4 X8 l2 J% j# u
Loaded file ../dsp/bin/debug/server_dsp.xe674 on slave procId 0.
( q6 h7 g  I: ~, X' s/ k2 RStarted slave procId 0.
) v) q) T3 Z2 _; `/ L+ ../host/host_app -qws5 y. ]! `1 b4 s( w9 y$ V. U
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync0 y+ P9 i$ C! @+ R
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync6 x8 }" Q: e, A6 |+ @) j, E
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
* B8 I: @) C: q9 A4 V2 p[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync+ f( ^' Z. O7 W; i* ?. x
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
! T7 t. j: e8 W! Y[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
" R3 [7 R0 \0 ]- W' P# p[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync2 [8 O2 u+ w# n( h1 F
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
+ z$ G3 K7 g0 p* S9 s& `[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync* I/ l" V) J3 M# A7 b
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
& h2 M: I3 s9 L# E[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync' }8 V: j! g9 H
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
3 Q6 U8 v, U5 P" L) ?[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
3 ^' ]: a" [: `, H) A0 u. [1 n& }[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
" w$ `6 @1 @; G7 p# t5 y+ z[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync! n! u6 ]% E9 Y
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
- O' F, [5 I( }; }[DEBUG|resource_sync_wait@resource_sync.c,86] wait resource 1
) Z) Z  ^! L5 d+ a/ N, N$ R9 b: _[DEBUG|resource_sync_event_handle@resource_sync.c,45] resource 0 had ready+ ]. i  D0 F* e- v
[DEBUG|resource_sync_event_handle@resource_sync.c,45] resource 1 had ready7 W& m4 f( l3 }: i8 N
[DEBUG|resource_sync_post@resource_sync.c,96] post resource 2 had ready
2 V3 t2 p6 u5 n" HCamera-Camera( `2 }2 {5 C! q( R
[   76.366400] host_app: page allocation failure: order:10, mode:0xd0* X0 }: l1 q- p$ _# C
[   76.377606] Backtrace:
" Q" q. `5 L% B3 S+ |; H[   76.380222] [<c000c580>] (dump_backtrace+0x0/0x114) from [<c0419474>] (dump_stack+0x18/0x1c)
5 s, r$ [0 D' p1 _[   76.397060]  r7:00000000 r6:0000000a r5:000000d0 r4:00000001
8 X8 |4 V3 D. z[   76.403249] [<c041945c>] (dump_stack+0x0/0x1c) from [<c0061e0c>] (warn_alloc_failed+0xf8/0x11c)7 S# V* j' N# R! b0 v, j8 @
[   76.412099] [<c0061d14>] (warn_alloc_failed+0x0/0x11c) from [<c006237c>] (__alloc_pages_nodemask+0x54c/0x590)" g) u4 w# K3 T  S: c, Z
[   76.425768]  r3:00000000 r2:00000000, }5 ?" H( t4 _9 T7 I8 j) X
[   76.429410]  r7:00000040 r6:00000035 r5:000000d0 r4:00000000" \: R0 J' g" T; z# S
[   76.436700] [<c0061e30>] (__alloc_pages_nodemask+0x0/0x590) from [<c000e030>] (__dma_alloc+0xec/0x2fc)% ^: S1 J5 S, u0 t. d& S( D
[   76.448512] [<c000df44>] (__dma_alloc+0x0/0x2fc) from [<c000e2d0>] (dma_alloc_coherent+0x5c/0x68)
4 ?8 a2 e" o" i+ i  B. F- O& H7 J8 G[   76.459091] [<c000e274>] (dma_alloc_coherent+0x0/0x68) from [<c02e2a4c>] (__videobuf_mmap_mapper+0xac/0x188)
; r$ f8 h1 E6 V9 S[   76.470521]  r7:c1bded90 r6:c1113b80 r5:c12d1b00 r4:c1113be4: I" ]' L7 h6 L
[   76.476678] [<c02e29a0>] (__videobuf_mmap_mapper+0x0/0x188) from [<c02e0724>] (videobuf_mmap_mapper+0xd4/0x114). s* V6 O7 |9 p9 o) \. d* v
[   76.489213]  r8:b52dc000 r7:c1113380 r6:c12d1b00 r5:c1bded90 r4:c12d1b00) g2 m3 m7 E  |1 B9 G/ d/ n
[   76.496486] [<c02e0650>] (videobuf_mmap_mapper+0x0/0x114) from [<c02eb1fc>] (vpif_mmap+0x40/0x50)
. w# J+ s, \! }' B9 s: M. \9 U[   76.507848]  r5:c12d1b00 r4:c1bdec00
! d. R# L9 k. ?6 n2 g9 D[   76.511602] [<c02eb1bc>] (vpif_mmap+0x0/0x50) from [<c02d20e4>] (v4l2_mmap+0x70/0x90)
, B! Q& P/ P( M4 G[   76.521828]  r5:c1bffe00 r4:c1113380" v- D9 x6 e  I3 w" M3 p
[   76.526209] [<c02d2074>] (v4l2_mmap+0x0/0x90) from [<c007a8f0>] (mmap_region+0x25c/0x494)8 u2 q5 F& F! n+ a4 {
[   76.536792]  r7:c1113380 r6:000000ff r5:c12d1b00 r4:00000000
+ Z. ~8 L. o; e3 y# J6 u( R[   76.542984] [<c007a694>] (mmap_region+0x0/0x494) from [<c007adec>] (do_mmap_pgoff+0x2c4/0x324)8 w1 u  Z( J5 m% ?4 B; F. c, s
[   76.551694] [<c007ab28>] (do_mmap_pgoff+0x0/0x324) from [<c007aeec>] (sys_mmap_pgoff+0xa0/0xd0)9 x) c2 i& }4 J9 ~
[   76.563987] [<c007ae4c>] (sys_mmap_pgoff+0x0/0xd0) from [<c0009440>] (ret_fast_syscall+0x0/0x2c)
) ?* j# _$ B, Y3 ?' H[   76.574327] Mem-info:, p7 P3 v2 y; [4 J% s/ z1 k! g; u% {
[   76.576657] DMA per-cpu:
( K0 K/ K; X- B- I1 z[   76.579223] CPU    0: hi:    0, btch:   1 usd:   0( J+ d' z3 @  I5 ~
[   76.587174] active_anon:1430 inactive_anon:35 isolated_anon:0& g: c  Z+ s: G# O5 P
[   76.587198]  active_file:867 inactive_file:896 isolated_file:03 X* f7 ?) a1 f+ j3 h' m/ L; S: c
[   76.587216]  unevictable:0 dirty:0 writeback:0 unstable:08 N* M9 g4 e: q
[   76.587232]  free:258 slab_reclaimable:286 slab_unreclaimable:789
2 c: X  Z# I, n3 J[   76.587251]  mapped:1276 shmem:132 pagetables:122 bounce:0
1 Z+ L- u" E5 ?$ c' |[   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$ h1 I& x- G. g. C$ L9 Z! }# X
[   76.661444] lowmem_reserve[]: 0 0 07 s3 q3 q; L$ U: m# ]: j
[   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
' c# z1 [/ M9 j* ~[   76.677034] 1884 total pagecache pages
0 \. }7 d& r. s! l; S- {[   76.680817] 0 pages in swap cache
! a; k+ S$ ^8 |* P9 u5 `[   76.687285] Swap cache stats: add 0, delete 0, find 0/0
% s7 v& a: [4 J& p[   76.693996] Free swap  = 0kB
  X+ I, U9 b( B. o( t[   76.696926] Total swap = 0kB2 G' G1 X, o- w. T
[   76.701578] 8192 pages of RAM
: k7 p" H9 O& [[   76.707668] 405 free pages
2 @6 t' U: L1 f3 u+ k[   76.710418] 1555 reserved pages
) r1 B' e( h( w" |[   76.715882] 838 slab pages
7 Y" b- Q- Z# c: c; T" ?* f  H) a[   76.718631] 1851 pages shared
. f" _  g3 Y, M: W& K9 T[   76.721620] 0 pages swap cached- i, ?- ?- [0 s
[   76.728009] vpif_capture vpif_capture: dma_alloc_coherent size 4149248 failed) ]; P' ]9 B7 A5 X7 u
Cannot mmap = 0 buffer
" ]# z) Q/ j9 ?! f: a" S# v' _VIDIOC_STREAMON' X+ P( m8 R; }0 X  F% C+ w1 V% y
: Input/output error
* k5 P# w& O3 ~[ERROR|start@capturer.cpp,27] fail to start capture
# D/ x0 J2 N2 \QThread::start: Thread creation error: Resource temporarily unavailable2 X) H# F! `+ Z
[DEBUG|start@playbacker.cpp,25] it's about to start playback3 u% O  z9 z3 y# }
: [- `2 W$ X  I+ Z8 t+ A9 t3 r. S
用led双核可以，这个demo就不行了，怎么解决啊
8 y* _  o. f& b/ y; C+ X0 J4 ^0 o: n8 P
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teddy

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沙发
发表于 2015-11-3 09:14:02 | 只看该作者
需要配置vpif的缓存；; J& B8 i0 X) L* N" s
1.vpif capture模式选择，vpif_capture_format值：& Z/ r, Y" m" [0 e7 }
HDTV：预留
1 H- p/ `9 P2 S( rSDTV: TL5147+ }9 j+ ^. @8 F9 }
RAW:TL2640
# D2 t) H. S- [/ h6 n) V8 T2.（ov2640配置分辨率为640*480 = 640*480*2 = 614400）
9 ~1 P# q; z7 z, O5 j3 Bvpif_capture.ch0_bufsize=614400, a8 @. t( x$ p/ I( K* }
例如：
) D3 P5 v' I" GU-Boot >      setenv optargs  ${optargs} vpif_capture_format=RAW vpif_capture.ch0_bufsize=6144008 Q9 J/ N2 M! @4 U* x9 Y4 ?/ r
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。9 q+ J. `' U5 }( z
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
1 i9 u/ b1 X2 x: ~% Demac-mode=mii6 H% E! D* y: r0 [  F( u2 o7 C. e
ethact=DaVinci-EMAC
4 A3 j) n6 m( N* T" t1 iethaddr=16:01:c0:17:45:e50 D& H6 {& t' l( A4 ?% a% T
hwconfig=dsp:wake=yes
  B& r- U1 a& l  m! p, e/ _ipaddr=10.3.2.99
5 g$ d+ z9 Z( v3 }& Mloadaddr=0xc0700000
' A. F8 f) L4 ~! J0 {+ \loadbootscr=fatload mmc ${mmcdev} ${scraddr} ${bootscr}
% V' x  Z: R! J1 ^5 P8 }$ }8 [loadimage=fatload mmc ${mmcdev} ${loadaddr} ${bootfile}4 `2 n# v7 K6 d$ Q0 C0 h$ M. m( a$ e
mem_args=mem=32M@0xc0000000 mem=64M@0xc4000000
  h& q" x# f' T, @; t# _, g" h$ k+ mmmcargs=setenv bootargs ${commonargs} root=${mmcroot} rootfstype=${mmcrootfstype}4 ~: Z% y( h/ p# {$ `# f
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 ${loadaddr}; fi; fi;
# |, H* C) ^8 |6 h0 i* Ommcdev=0
. m5 [* V- n2 P: f3 R5 _% ^mmcroot=/dev/mmcblk0p2 rw1 b+ |3 ^0 R$ L1 n2 M
mmcrootfstype=ext3 rootwait
0 B( J( D) L$ w% }, |* J+ s) amtddevname=env
: O* O/ ~9 [4 x9 h$ bmtddevnum=0
1 l* `% s8 F5 M8 Q6 Zmtdids=nand0=davinci_nand.0
. Q+ Q) I+ r- k: i- E- ~mtdparts=mtdparts=davinci_nand.0:128k(env),512k(spl),512k(u-boot),4m(kernel),-(filesystem)/ m. L- m( \  ]# R! v# V5 d* X
nandargs=setenv bootargs ${commonargs} root=${nandroot} rootfstype=${nandrootfstype}
3 V6 P* K2 m9 n0 ^+ cnandboot=if nboot ${nandbootpart}; then echo Booting from nand ...; run nandargs; bootm ${loadaddr}; fi;
( ]) K5 i. w1 d4 Q% s% e/ g/ k/ g; anandbootpart=kernel
( m3 e. C5 s( N) H; D: b3 dnanddev=0
8 g1 i( U4 X* j( b) H. V+ jnandroot=ubi0_0 ubi.mtd=4,2048& t/ ]' E4 [. g: R( I' p6 h) |
nandrootfstype=ubifs
9 ^$ x) ~) w/ ^8 p& Bnetmask=255.255.255.0
6 ?6 u  H% l% X5 ^7 L7 X) knfsargs=setenv bootargs ${commonargs} ip=dhcp root=/dev/nfs nfsroot=${serverip}{nfspath},nolock rw  [& q) y4 q) L6 ]5 }3 r! w
optargs=vpif_capture_format=SDTV vpif_capture.ch0_bufsize=6144009 z6 F; c9 |$ z0 Z  z/ r
partition=nand0,0
) y  G8 Q  N& B9 t1 d, o, N' M7 v& G1 Rscraddr=0xc06000007 q7 D% v" M4 S" I( c
serverip=10.3.2.1754 B# d8 P5 X1 K* A/ @  r3 @. ~
spiboot=if sf probe ${spidev}; then sf read ${loadaddr} ${spibootaddr} ${spibootsize}; run nandargs; bootm ${loadaddr}; fi;
% c3 L1 T" X) H8 b$ U- N. c% uspibootaddr=0x100000& B& j1 m3 z6 q8 r% H6 @0 H. w
spibootsize=0x400000# r1 ?- Q, M: w/ d
spidev=0
( d! z$ @5 C3 J! S& X0 Vstderr=serial, x9 d6 N1 g5 q. T
stdin=serial
! A  y: ?+ c' `$ Dstdout=serial, g- H3 I+ R2 p: s" f. d
ver=U-Boot 2012.04.01-00059-g7363edf (Apr 21 2015 - 18:15:15). ?  u% `$ Z% X7 a# c
) K  S" W7 c+ z1 k: R& i

3 D9 a* G, G1 R1 ^4 h& `2 q" v还是不行: S8 e9 h7 c2 P, ]) p3 N! C
  D# V$ b* {' H7 r8 {# Q
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robinluo123

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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.
% L0 k  y* k* E3 q9 {+ ../host/host_app -qws) y8 ^4 t1 ]* z2 u4 t% {
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync% f5 ]6 m; v; C) Z/ y$ D
[DEBUG|resource_sync_wait@resource_sync.c,86] wait resource 1
7 j6 m/ F9 C& Q9 _& ^7 E8 o[DEBUG|resource_sync_event_handle@resource_sync.c,45] resource 0 had ready7 X5 n# Z. U0 S4 e4 D* O. N
[DEBUG|resource_sync_event_handle@resource_sync.c,45] resource 1 had ready
6 i' `9 H- R" {% K; R[DEBUG|resource_sync_post@resource_sync.c,96] post resource 2 had ready& O1 B& d  }" s  k# `) W% e% _
Camera-Camera
9 T9 a/ Q2 K: u& a* x" m8 z[   34.616261] host_app: page allocation failure: order:10, mode:0xd0
( ^- |0 o9 I. X% Y* U[   34.627157] Backtrace: 0 E9 J- d, I6 v" e
[   34.630203] [<c000c580>] (dump_backtrace+0x0/0x114) from [<c0419474>] (dump_stack+0x18/0x1c)8 U* \4 O/ V4 d3 l- B
[   34.652340]  r7:00000000 r6:0000000a r5:000000d0 r4:000000010 n/ r( w/ ^+ F. @  C' N
[   34.658528] [<c041945c>] (dump_stack+0x0/0x1c) from [<c0061e0c>] (warn_alloc_failed+0xf8/0x11c)
/ H, J7 V( {* D* I. Y) ~" x  [. X6 K[   34.669739] [<c0061d14>] (warn_alloc_failed+0x0/0x11c) from [<c006237c>] (__alloc_pages_nodemask+0x54c/0x590)
" ?/ C* e. U9 v4 j[   34.681238]  r3:00000000 r2:000000007 E7 r  J/ s! r$ m0 g% Y8 G
[   34.685216]  r7:00000040 r6:00000035 r5:000000d0 r4:00000000. P: `. L2 m7 w8 F3 O
[   34.691084] [<c0061e30>] (__alloc_pages_nodemask+0x0/0x590) from [<c000e030>] (__dma_alloc+0xec/0x2fc)9 u* E# ^3 ]* H9 P3 \
[   34.703957] [<c000df44>] (__dma_alloc+0x0/0x2fc) from [<c000e2d0>] (dma_alloc_coherent+0x5c/0x68)
' ~: {1 c3 [! |% E/ K1 J[   34.714824] [<c000e274>] (dma_alloc_coherent+0x0/0x68) from [<c02e2a4c>] (__videobuf_mmap_mapper+0xac/0x188)
3 L* P1 Z- t6 k* u' x$ f[   34.726242]  r7:c1bded90 r6:c1371700 r5:c12bd688 r4:c1371764
. I, D* g) h+ \. @) g4 x[   34.732056] [<c02e29a0>] (__videobuf_mmap_mapper+0x0/0x188) from [<c02e0724>] (videobuf_mmap_mapper+0xd4/0x114)
, e) C. o3 [$ s/ |1 Z[   34.744717]  r8:b5317000 r7:c1371280 r6:c12bd688 r5:c1bded90 r4:c12bd688
- L& U! {' U- ~8 G- j[   34.751646] [<c02e0650>] (videobuf_mmap_mapper+0x0/0x114) from [<c02eb1fc>] (vpif_mmap+0x40/0x50)
: N/ U# |# T' ?2 c5 ^6 B[   34.763159]  r5:c12bd688 r4:c1bdec00* e3 `  ]7 C" U9 q  G8 y
[   34.766879] [<c02eb1bc>] (vpif_mmap+0x0/0x50) from [<c02d20e4>] (v4l2_mmap+0x70/0x90)
; Z7 S) u2 [6 K3 Q( a1 ^[   34.777146]  r5:c1bffe00 r4:c1371280
* x, i0 }0 s& K5 U2 A, }! g[   34.780857] [<c02d2074>] (v4l2_mmap+0x0/0x90) from [<c007a8f0>] (mmap_region+0x25c/0x494)
5 w/ e; B  ~* B- i# @7 L[   34.791444]  r7:c1371280 r6:000000ff r5:c12bd688 r4:000000003 e' u* c# f! S9 T
[   34.797615] [<c007a694>] (mmap_region+0x0/0x494) from [<c007adec>] (do_mmap_pgoff+0x2c4/0x324)
5 j$ \4 a8 t% s& e[   34.808680] [<c007ab28>] (do_mmap_pgoff+0x0/0x324) from [<c007aeec>] (sys_mmap_pgoff+0xa0/0xd0)
2 n% Y5 [* L& D% m0 I0 {[   34.823582] [<c007ae4c>] (sys_mmap_pgoff+0x0/0xd0) from [<c0009440>] (ret_fast_syscall+0x0/0x2c)1 _% K6 p6 P7 s, [$ E) H
[   34.842578] Mem-info:
; M$ ]! j, p; L$ i[   34.844908] DMA per-cpu:
% n9 E* j. ~7 ?( r/ s! p; R[   34.847474] CPU    0: hi:    0, btch:   1 usd:   0, y. ~, |3 U0 q
[   34.852369] active_anon:1439 inactive_anon:35 isolated_anon:0) b$ I+ R3 p9 c3 A# ~& p( p! _
[   34.852388]  active_file:718 inactive_file:601 isolated_file:0, ^- h! z/ t1 m+ p
[   34.852404]  unevictable:0 dirty:0 writeback:0 unstable:07 |) F9 i& T0 s- b# x. I
[   34.852420]  free:665 slab_reclaimable:289 slab_unreclaimable:815
& v' y5 _6 ]9 N) Q4 j[   34.852437]  mapped:1087 shmem:132 pagetables:122 bounce:0
3 i8 t" J5 L; y2 I[   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? no* h- J  [) w3 |3 D) b* s% P
[   35.023590] lowmem_reserve[]: 0 0 06 A* W' Y5 n4 M* T
[   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 = 7648kB0 b$ S" ~' F  ]5 q. ~
[   35.054676] 214 total pagecache pages2 y& a+ f% c# p
[   35.058399] 0 pages in swap cache$ Q/ ~# t$ H2 d# }: i2 J
[   35.061743] Swap cache stats: add 0, delete 0, find 0/03 D6 Y; Y9 X7 J; j6 c; r8 |
[   35.081983] Free swap  = 0kB
+ d& x6 u0 E7 Y[   35.085058] Total swap = 0kB) K; Y0 J3 A/ e7 r3 r  t
[   35.089678] 8192 pages of RAM
2 _. y# U* ?7 k[   35.103088] 2019 free pages2 p$ D* X0 s2 Y! c8 n3 A
[   35.105926] 1555 reserved pages5 ?' }& [' U, x* L
[   35.109090] 869 slab pages8 U5 e+ H2 j5 K2 [
[   35.111813] 161 pages shared, ?" D. x" T! @0 |& X8 C
[   35.132854] 0 pages swap cached
6 m, ?- x% v. j. S* _# j[   35.136068] vpif_capture vpif_capture: dma_alloc_coherent size 4149248 failed9 I7 f3 c6 E, N, s9 e
Cannot mmap = 0 buffer
/ h6 Q5 d2 g3 H+ ^3 T( QVIDIOC_STREAMON
1 g& G! e" {- Y: Input/output error4 ?' ^$ V( v0 a3 G8 H% j
[ERROR|start@capturer.cpp,27] fail to start capture, D9 U( q  D) R+ O& X4 J
QThread::start: Thread creation error: Resource temporarily unavailable/ Y3 Z6 K% K, s
[DEBUG|start@playbacker.cpp,25] it's about to start playback
6 ]4 C1 w. ^, N3 y3 C4 o8 D
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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# free
3 O% l0 J. a9 K7 S             total       used       free     shared    buffers     cached
0 I% |5 {' v& G5 Y# i  E; _8 XMem:         26548      19728       6820          0          0       2884( ]9 a4 d$ R& z
-/+ buffers/cache:      16844       9704
# y4 _4 J. [% v) J1 x# U6 b  USwap:            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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