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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 ; b9 B0 v2 d$ F

! o9 l+ _# o) I+ MODULE_NAME=syslink0 ~" f9 M& P+ m8 W! v
+ lsmod+ B' f2 z- u6 }0 D7 s; y
+ grep syslink
( T$ S. y. M, D- V, Q) K! o+ '[' 0 -ne 0 ']'
5 k  G1 f9 t1 q+ ./slaveloader startup DSP ../dsp/bin/debug/server_dsp.xe674
# B8 Q, ^. e6 R6 p' A  k8 Q5 pAttached to slave procId 0.
$ |' a1 Z- f, y$ o/ }; L4 n+ |! QLoading procId 0.) }# N1 c0 z3 p3 z8 `. |1 y
Loaded file ../dsp/bin/debug/server_dsp.xe674 on slave procId 0.3 [( P! E% n- L2 @1 B4 Z
Started slave procId 0.8 Q$ F! ]- ]' G7 i
+ ../host/host_app -qws; c3 ]6 E4 I/ H. X2 ]" Z) {
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync' d6 F. e% ?' b7 N: Q; a) q
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync; d* x, p' g. s* q; b9 |  F
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync$ F  P. C' Q/ k
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
8 b" `/ ^8 l% B! p# I[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync+ j# M. q& Z6 N) h
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
, ]( n7 p+ b; B- E& ~/ j' l  K3 Z[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
# g# r- \) a1 F# Q7 Z8 ?$ x[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync/ _! [8 @6 O  V0 i
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync& T4 L3 ~- u" c' o+ O
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync% A% ?# p6 _& D1 s+ Z
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
3 A& I0 c7 }, M, U  |+ I[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync8 ^  e5 ^0 A0 V/ K! b9 L
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync/ {* t5 j6 S5 x7 H$ k& r
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
( I4 i% g; B+ ]: P[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync# h' v) x+ `0 o5 m& x
[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
% L& e9 r  X2 W* R& b5 L2 a[DEBUG|resource_sync_wait@resource_sync.c,86] wait resource 1# B8 D+ S! |. U1 G
[DEBUG|resource_sync_event_handle@resource_sync.c,45] resource 0 had ready, u2 J: a( y0 s3 a* k
[DEBUG|resource_sync_event_handle@resource_sync.c,45] resource 1 had ready4 \% W) T' ~( F% Z! U( U+ o
[DEBUG|resource_sync_post@resource_sync.c,96] post resource 2 had ready
5 k0 M  S- i5 GCamera-Camera
# e% T" W- S0 M9 a[   76.366400] host_app: page allocation failure: order:10, mode:0xd0
; p1 m$ _4 y0 v[   76.377606] Backtrace:
; W( e) J* S% ~  z[   76.380222] [<c000c580>] (dump_backtrace+0x0/0x114) from [<c0419474>] (dump_stack+0x18/0x1c)! }. @8 y$ V0 B$ ^- i3 t
[   76.397060]  r7:00000000 r6:0000000a r5:000000d0 r4:00000001
- v  f/ O) F3 I8 t6 C! d[   76.403249] [<c041945c>] (dump_stack+0x0/0x1c) from [<c0061e0c>] (warn_alloc_failed+0xf8/0x11c)
) O# U- n  O3 e: y2 C* O[   76.412099] [<c0061d14>] (warn_alloc_failed+0x0/0x11c) from [<c006237c>] (__alloc_pages_nodemask+0x54c/0x590)4 y. u! ?+ i+ h$ j) _9 i1 W: E
[   76.425768]  r3:00000000 r2:00000000! _* s( x0 h/ h% g% B
[   76.429410]  r7:00000040 r6:00000035 r5:000000d0 r4:00000000- E1 g" L9 ]" s% W
[   76.436700] [<c0061e30>] (__alloc_pages_nodemask+0x0/0x590) from [<c000e030>] (__dma_alloc+0xec/0x2fc)5 d2 B+ j" _7 l- p
[   76.448512] [<c000df44>] (__dma_alloc+0x0/0x2fc) from [<c000e2d0>] (dma_alloc_coherent+0x5c/0x68)
  f) N% K: L3 E+ Y[   76.459091] [<c000e274>] (dma_alloc_coherent+0x0/0x68) from [<c02e2a4c>] (__videobuf_mmap_mapper+0xac/0x188)( a6 F' i4 p3 k' c  j: c- i3 b
[   76.470521]  r7:c1bded90 r6:c1113b80 r5:c12d1b00 r4:c1113be49 q9 D! {2 {6 o% }
[   76.476678] [<c02e29a0>] (__videobuf_mmap_mapper+0x0/0x188) from [<c02e0724>] (videobuf_mmap_mapper+0xd4/0x114)
( t, T1 {- Z5 |[   76.489213]  r8:b52dc000 r7:c1113380 r6:c12d1b00 r5:c1bded90 r4:c12d1b00
5 ?- o% b( K: P+ o. u$ g2 ]- r) D[   76.496486] [<c02e0650>] (videobuf_mmap_mapper+0x0/0x114) from [<c02eb1fc>] (vpif_mmap+0x40/0x50)
3 o* T  \) h, }3 p$ e# E3 z[   76.507848]  r5:c12d1b00 r4:c1bdec00
8 [& f' ?+ h$ }2 N6 p: T6 A, z[   76.511602] [<c02eb1bc>] (vpif_mmap+0x0/0x50) from [<c02d20e4>] (v4l2_mmap+0x70/0x90), j" K2 s9 r( ~
[   76.521828]  r5:c1bffe00 r4:c1113380, L% X$ K% W* J8 L! S6 V
[   76.526209] [<c02d2074>] (v4l2_mmap+0x0/0x90) from [<c007a8f0>] (mmap_region+0x25c/0x494)2 ?3 B7 j& P7 n: k7 E8 L; x
[   76.536792]  r7:c1113380 r6:000000ff r5:c12d1b00 r4:00000000
% @  A: R" Z/ C! x[   76.542984] [<c007a694>] (mmap_region+0x0/0x494) from [<c007adec>] (do_mmap_pgoff+0x2c4/0x324)$ {8 |" Y/ a  b8 }9 P
[   76.551694] [<c007ab28>] (do_mmap_pgoff+0x0/0x324) from [<c007aeec>] (sys_mmap_pgoff+0xa0/0xd0)( A( _0 o6 W2 g% Y/ T
[   76.563987] [<c007ae4c>] (sys_mmap_pgoff+0x0/0xd0) from [<c0009440>] (ret_fast_syscall+0x0/0x2c)) T- N- `* k4 x" F5 x! x
[   76.574327] Mem-info:
$ [/ l* E1 l$ _. ^' ~1 \' O! `  v. J[   76.576657] DMA per-cpu:
) z/ U/ c8 M8 e[   76.579223] CPU    0: hi:    0, btch:   1 usd:   0
8 @0 W  [5 J7 U6 T. A) Y[   76.587174] active_anon:1430 inactive_anon:35 isolated_anon:01 k+ O! D1 N* \2 T: i8 G
[   76.587198]  active_file:867 inactive_file:896 isolated_file:0, s* p" X( L. r& D. s+ x8 w
[   76.587216]  unevictable:0 dirty:0 writeback:0 unstable:0
  o: F7 ~1 J; l, G3 ^8 v[   76.587232]  free:258 slab_reclaimable:286 slab_unreclaimable:789
/ V: @: v3 V( w, X0 U3 T, _[   76.587251]  mapped:1276 shmem:132 pagetables:122 bounce:0
) h! R' ~* d8 B# U  B; j& ~# L[   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: [# ?# u" Z) @6 K
[   76.661444] lowmem_reserve[]: 0 0 0
: l- U( b- q& Z: t3 f) @[   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
) @! k0 J3 K  R, b9 K[   76.677034] 1884 total pagecache pages5 P/ W) \* L7 }9 {, _$ n) a
[   76.680817] 0 pages in swap cache; x3 A* R. Q* X
[   76.687285] Swap cache stats: add 0, delete 0, find 0/0
& g0 Y9 R% F! p/ N[   76.693996] Free swap  = 0kB
$ C0 t& ?) a8 G% K; A$ R  K! h[   76.696926] Total swap = 0kB
# V. c: F  M3 k2 \4 }+ `2 ?5 \[   76.701578] 8192 pages of RAM
2 y* e. X" M& D- C5 ^3 z1 a) t[   76.707668] 405 free pages0 y/ C9 a2 J1 ?; x$ r
[   76.710418] 1555 reserved pages
) h2 h8 m, u/ |& y- E& }  Z) T[   76.715882] 838 slab pages
* ^( Y# ?7 V0 @0 X[   76.718631] 1851 pages shared) C7 X/ v0 z* Y2 N' w2 H
[   76.721620] 0 pages swap cached* g# F8 q) c1 M) q1 ]% B4 Z
[   76.728009] vpif_capture vpif_capture: dma_alloc_coherent size 4149248 failed
4 n" C6 K. `( i: r* j: b5 D7 U; xCannot mmap = 0 buffer0 p+ P7 F( C; i( W8 X3 d+ |" a
VIDIOC_STREAMON
2 }' N6 Z+ M: h" }: Input/output error
5 I' S" y: y" i& M9 C- i5 y[ERROR|start@capturer.cpp,27] fail to start capture
  e, d6 V( Q7 K' |) [: A" c: a7 q! eQThread::start: Thread creation error: Resource temporarily unavailable
, `* f8 ?. m6 P# O) p[DEBUG|start@playbacker.cpp,25] it's about to start playback1 l& j' }8 p1 n) [; r: U8 S

* u7 c( ?$ o" a' o( _. f7 U- u3 O# h用led双核可以，这个demo就不行了，怎么解决啊
$ p/ J7 S1 h9 M
0 E. D2 A$ H- s% c0 A4 Q
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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；. G6 M) ~9 L! `0 b: S! M
1.vpif capture模式选择，vpif_capture_format值：
2 @/ V; r; _2 Q6 o* WHDTV：预留
5 e/ k4 n5 K8 d: V8 k4 mSDTV: TL5147
# _  b. `8 O3 \  pRAW:TL2640" `! E$ O; s; o0 D! B$ A
2.（ov2640配置分辨率为640*480 = 640*480*2 = 614400）4 c& u! F. J4 i  o) Q
vpif_capture.ch0_bufsize=614400" O1 A" M2 h7 R& q2 |7 O. |
例如：
$ W7 T! V! x( W! LU-Boot >      setenv optargs  ${optargs} vpif_capture_format=RAW vpif_capture.ch0_bufsize=614400  v0 @, Y  n6 [% L
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。
0 W9 L" c( f6 T1 v8 l/ H2 v) V 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
! C- m+ Y5 b% Q) F3 a" kemac-mode=mii. S! J0 D4 r1 H( d# A. B0 y, s/ L
ethact=DaVinci-EMAC: F2 |9 j  I1 u" a: P! f8 @
ethaddr=16:01:c0:17:45:e5  ~) |4 j6 @: f3 n* o+ q- b6 e2 v  k1 Q# V
hwconfig=dsp:wake=yes- a6 k: y- o3 X, |+ c* h" K
ipaddr=10.3.2.99+ v# x9 h# e8 k' p8 b$ V
loadaddr=0xc0700000
% k1 N& n1 O- |9 E; E9 lloadbootscr=fatload mmc ${mmcdev} ${scraddr} ${bootscr}
  q$ X, r, h3 _0 y- z4 C% Gloadimage=fatload mmc ${mmcdev} ${loadaddr} ${bootfile}8 i8 h6 a4 e0 b+ m+ k' G
mem_args=mem=32M@0xc0000000 mem=64M@0xc4000000( r5 A6 D' g- i) J0 |8 x
mmcargs=setenv bootargs ${commonargs} root=${mmcroot} rootfstype=${mmcrootfstype}
: M$ Q) N, V, W% G0 ammcboot=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 ${loadaddr}; fi; fi;& c& f; B3 }) x  s8 [+ J( Y1 }1 {5 e
mmcdev=0
+ _1 T: M' {* P4 Xmmcroot=/dev/mmcblk0p2 rw
" q  d5 s" M1 d3 J+ I) ymmcrootfstype=ext3 rootwait8 @* B4 L7 |8 Z+ ?9 n' ^
mtddevname=env
6 e: _  Y: [* F/ Kmtddevnum=0. [0 I5 `  o3 v: ^8 Q5 F5 H
mtdids=nand0=davinci_nand.0
1 G3 H! I3 A: E: Q* Z9 Z0 U8 s$ nmtdparts=mtdparts=davinci_nand.0:128k(env),512k(spl),512k(u-boot),4m(kernel),-(filesystem)
/ [8 [- p4 @; i3 E) `nandargs=setenv bootargs ${commonargs} root=${nandroot} rootfstype=${nandrootfstype}3 P- b9 Z3 |, a8 S1 }
nandboot=if nboot ${nandbootpart}; then echo Booting from nand ...; run nandargs; bootm ${loadaddr}; fi;
! Q' _  c4 R8 l7 b1 Hnandbootpart=kernel- n5 q5 _. j! L
nanddev=0
# n+ c! s& P% T/ C( {1 F# Dnandroot=ubi0_0 ubi.mtd=4,2048" I! h  e) r! m0 s" h6 I2 y& _- d1 Q
nandrootfstype=ubifs! U# a" v* C* |; l  u
netmask=255.255.255.0( l6 u" r$ n  w* S7 H7 ^" Q
nfsargs=setenv bootargs ${commonargs} ip=dhcp root=/dev/nfs nfsroot=${serverip}{nfspath},nolock rw7 h* ~, Z* m# j
optargs=vpif_capture_format=SDTV vpif_capture.ch0_bufsize=614400
  |0 T* }5 {2 A- W$ c7 u4 Ipartition=nand0,0
. B' |  B% \5 l0 {" V" ~scraddr=0xc0600000
+ }6 C2 H, G* Y, V  |0 nserverip=10.3.2.175
2 o9 s. O/ C$ J; ispiboot=if sf probe ${spidev}; then sf read ${loadaddr} ${spibootaddr} ${spibootsize}; run nandargs; bootm ${loadaddr}; fi;
1 b; h. B- X8 tspibootaddr=0x100000
( R6 L/ v& T  T2 [$ s/ H( l: H' @spibootsize=0x400000
$ q( G8 Z2 p6 A: ]) s$ Nspidev=0% R# X+ W% z0 Y6 g* f# A, ?: P( |
stderr=serial
0 f* t  W+ `* K8 M0 xstdin=serial
5 |% W, u4 l# k$ j7 j2 v) q1 R$ |stdout=serial' X9 ^5 y& r  T9 \: g8 X% m/ o
ver=U-Boot 2012.04.01-00059-g7363edf (Apr 21 2015 - 18:15:15)% x- Q/ z( q! D1 O
# k* o# |) }2 L. {! K

" s. i8 v% F2 _+ c) S: Y还是不行
3 P! j4 m: `! q6 B
& q  W7 m1 w" _  Z, s0 u6 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.
* S8 E/ T* t# e4 X+ ../host/host_app -qws
$ P0 I* t! U! a; Z3 X3 d& \9 y[TRACE|resource_sync_pair_wait@resource_sync.c,68] try sync
! z, ^7 [5 v8 N) ~4 e( \; k, p[DEBUG|resource_sync_wait@resource_sync.c,86] wait resource 1
0 x. B8 H! f2 x3 K[DEBUG|resource_sync_event_handle@resource_sync.c,45] resource 0 had ready0 k) y3 H, ^: W
[DEBUG|resource_sync_event_handle@resource_sync.c,45] resource 1 had ready
4 _/ ~( @5 D2 _! A! {9 ]0 P[DEBUG|resource_sync_post@resource_sync.c,96] post resource 2 had ready  q  `+ ~! w9 @# ?& {5 i# a
Camera-Camera+ Q# g. |) @' L: ?/ h
[   34.616261] host_app: page allocation failure: order:10, mode:0xd0
* H8 R+ v+ P6 \' O4 ^[   34.627157] Backtrace: . {3 f' v) s* b& Q6 J. V
[   34.630203] [<c000c580>] (dump_backtrace+0x0/0x114) from [<c0419474>] (dump_stack+0x18/0x1c)
1 X- l9 t5 m; i. f[   34.652340]  r7:00000000 r6:0000000a r5:000000d0 r4:00000001
* B  g6 B- I. K  g: N) K[   34.658528] [<c041945c>] (dump_stack+0x0/0x1c) from [<c0061e0c>] (warn_alloc_failed+0xf8/0x11c)
5 v$ F7 k- y' n! q1 B: k[   34.669739] [<c0061d14>] (warn_alloc_failed+0x0/0x11c) from [<c006237c>] (__alloc_pages_nodemask+0x54c/0x590)
  w* X$ z: S; K[   34.681238]  r3:00000000 r2:00000000, a: H- y- F4 M# f8 f! n
[   34.685216]  r7:00000040 r6:00000035 r5:000000d0 r4:00000000
4 J' J! m+ w  Q4 s2 x  R[   34.691084] [<c0061e30>] (__alloc_pages_nodemask+0x0/0x590) from [<c000e030>] (__dma_alloc+0xec/0x2fc)
, K- P% i/ c: t+ J9 q[   34.703957] [<c000df44>] (__dma_alloc+0x0/0x2fc) from [<c000e2d0>] (dma_alloc_coherent+0x5c/0x68)
, p. @1 O6 g7 J* ]3 {$ q& L[   34.714824] [<c000e274>] (dma_alloc_coherent+0x0/0x68) from [<c02e2a4c>] (__videobuf_mmap_mapper+0xac/0x188)
- N1 B) M3 P' t7 I& R( P[   34.726242]  r7:c1bded90 r6:c1371700 r5:c12bd688 r4:c1371764& S' T! Q4 u7 M) f9 f+ K/ S
[   34.732056] [<c02e29a0>] (__videobuf_mmap_mapper+0x0/0x188) from [<c02e0724>] (videobuf_mmap_mapper+0xd4/0x114)- l* f/ _; {% ^0 U0 H$ _
[   34.744717]  r8:b5317000 r7:c1371280 r6:c12bd688 r5:c1bded90 r4:c12bd688- d9 }' C1 ]9 p1 I! h
[   34.751646] [<c02e0650>] (videobuf_mmap_mapper+0x0/0x114) from [<c02eb1fc>] (vpif_mmap+0x40/0x50)
% z9 A- A6 w. D  _2 p8 r[   34.763159]  r5:c12bd688 r4:c1bdec00
6 h% h! G. p7 A/ Y7 O  [[   34.766879] [<c02eb1bc>] (vpif_mmap+0x0/0x50) from [<c02d20e4>] (v4l2_mmap+0x70/0x90)0 S* F- D! R: f; I8 a! w
[   34.777146]  r5:c1bffe00 r4:c1371280
4 R3 `7 z7 f4 d. j& `( N[   34.780857] [<c02d2074>] (v4l2_mmap+0x0/0x90) from [<c007a8f0>] (mmap_region+0x25c/0x494)& R  O- L5 k' [2 t: S
[   34.791444]  r7:c1371280 r6:000000ff r5:c12bd688 r4:00000000
& Z+ I% z5 [9 T+ o4 @+ f% Q3 H$ W7 ][   34.797615] [<c007a694>] (mmap_region+0x0/0x494) from [<c007adec>] (do_mmap_pgoff+0x2c4/0x324)# H  Q& P/ H; c+ A" B0 o% x3 }8 x
[   34.808680] [<c007ab28>] (do_mmap_pgoff+0x0/0x324) from [<c007aeec>] (sys_mmap_pgoff+0xa0/0xd0)
* U6 n: s8 }& h[   34.823582] [<c007ae4c>] (sys_mmap_pgoff+0x0/0xd0) from [<c0009440>] (ret_fast_syscall+0x0/0x2c)4 c* U$ ]! {3 g, W
[   34.842578] Mem-info:
5 ]# E% \$ K3 r- ^: ^9 y[   34.844908] DMA per-cpu:) z$ ?7 y. x7 f. q: B" P3 d
[   34.847474] CPU    0: hi:    0, btch:   1 usd:   0$ V& |1 D: r! u! m
[   34.852369] active_anon:1439 inactive_anon:35 isolated_anon:0
! N. v4 y; h6 l5 |) Z[   34.852388]  active_file:718 inactive_file:601 isolated_file:0) A; m- q! x6 S; {0 A1 z) m, |
[   34.852404]  unevictable:0 dirty:0 writeback:0 unstable:0
0 p' f1 U# y: z7 c' E[   34.852420]  free:665 slab_reclaimable:289 slab_unreclaimable:815: j# M9 M: z  f! z" W2 I) x" ]! e
[   34.852437]  mapped:1087 shmem:132 pagetables:122 bounce:0
2 f3 \% `2 l! P[   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  L) j4 t, N, o9 x) B% p0 Q" a: p[   35.023590] lowmem_reserve[]: 0 0 0
) t# c, X- d( G7 X1 e+ R! w! 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 = 7648kB+ d+ S# H5 Q. I, I- I
[   35.054676] 214 total pagecache pages! N  X+ q( H/ b- o2 G* ~+ I
[   35.058399] 0 pages in swap cache
, L/ z' `0 r: h- B* r[   35.061743] Swap cache stats: add 0, delete 0, find 0/0
) `7 u/ U9 v* S& K[   35.081983] Free swap  = 0kB9 ]% o0 _6 ~/ \$ I' s) I
[   35.085058] Total swap = 0kB- q, v* i8 B1 N* |- a: Y0 g
[   35.089678] 8192 pages of RAM
, F" ~8 s" G4 r) {[   35.103088] 2019 free pages- t$ s8 [$ B& S3 U: a
[   35.105926] 1555 reserved pages
, l0 V8 ^4 |; I[   35.109090] 869 slab pages+ o/ d* E; i$ V$ h( {  N) f5 Q, e
[   35.111813] 161 pages shared
2 `  h* K! h5 `3 x[   35.132854] 0 pages swap cached3 n3 m" \3 _0 B
[   35.136068] vpif_capture vpif_capture: dma_alloc_coherent size 4149248 failed
7 d; l8 X+ {5 K2 c# r4 b* n: l9 {Cannot mmap = 0 buffer
+ f) M3 j; T& c4 qVIDIOC_STREAMON" q6 ^) n1 K1 c1 j/ N1 O* k7 ^
: Input/output error6 G. z4 k8 ?: e* q% }: K
[ERROR|start@capturer.cpp,27] fail to start capture$ o& u; |0 S8 q( E) _
QThread::start: Thread creation error: Resource temporarily unavailable
; q  _% K2 `2 W% W+ a2 ~! i[DEBUG|start@playbacker.cpp,25] it's about to start playback: z' g0 |7 \( O" f8 V) v, s
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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
% _  z( E! p7 f& j( S             total       used       free     shared    buffers     cached
- k; h2 u2 K) C" s0 LMem:         26548      19728       6820          0          0       2884
4 c+ Y1 n: S7 J. ?/ m, v1 O-/+ buffers/cache:      16844       97045 E0 I3 r4 D/ p; V0 O
Swap:            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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