No camera picture

[aruzsi]

Hi,

SuSE 11.3, ZM from rpm.
The install was successfull.

Camera is an USB webcamera.
There is movie under Xawtv and I can take still pictures.

zmdc.log is full of this kind of lines:
zmdc[7974].INF [Starting pending process, zmc -d /dev/video0]
zmdc[7974].INF ['zmc -d /dev/video0' starting at 10/09/28 20:32:19, pid = 8490]
zmdc[7974].ERR ['zmc -d /dev/video0' exited abnormally, exit status 11]
...
zmdc[7974].INF [Starting pending process, zmc -d /dev/video]
zmdc[7974].INF ['zmc -d /dev/video' starting at 10/09/28 20:38:02, pid = 8653]
zmdc[7974].ERR ['zmc -d /dev/video' exited abnormally, exit status 6]
...
zmdc[7974].INF [Starting pending process, zmc -m 1]
zmdc[7974].INF ['zmc -m 1' starting at 10/09/28 20:43:31, pid = 8809]
zmdc[7974].INF ['zmc -m 1' crashed, signal 6]
...
zmdc[7974].INF [Starting pending process, zmc -d /dev/video0]
zmdc[7974].INF ['zmc -d /dev/video0' starting at 10/09/28 22:40:19, pid = 11168]
zmdc[7974].ERR ['zmc -d /dev/video0' exited abnormally, exit status 255]
...

zmu -d /dev/video0 -V1 --query
d:/dev/video0|N:PC Camera|T:1|nC:1|nA:0|mxW:640|mxH:480|mnW:48|mnH:32|X:0|Y:0|W:640|H:480|P:0|D:8|B:32896|h:0|Cl:0|Cn:32896|w:39321|n0:zc3xx|C0:0|Fl0:0|T0:2|F0:0

What could be the problem?

TIA,

[hengst]

what do other logs tell ?

permissions /dev/video0 ok ?

[aruzsi]

what do other logs tell ?

permissions /dev/video0 ok ?

I can't see any relevant lines in other zm* logs. Which one do I have to see?

Permission:
atom:/var/log/zm # ls -la /dev/video0
crw-rw-rw- 1 root video 81, 0 szept 29 10.02 /dev/video0

zm* processes are running at wwwrun user. I think the permission is all right because others can read/write the device.

I've got no ideas what is the problem. I'm not sure it is a camera problem.

[aruzsi]

I switched on debugging:

09/29/10 12:55:51.139584 zma_m1[15285].INF-zm_debug.c/292 [New Debug Level = 5,
New Debug Log = /var/log/zm/zm_debug.log.15285]
09/29/10 12:55:51.141019 zma_m1[15285].DB1-zm_monitor.cpp/2262 [Got 1 monitors]
09/29/10 12:55:51.141960 zma_m1[15285].DB1-zm_monitor.cpp/338 [monitor purpose=2
]
09/29/10 12:55:51.142042 zma_m1[15285].DB1-zm_monitor.cpp/345 [mem.size=9217192]
09/29/10 12:55:51.142231 zma_m1[15285].ERR-zm_monitor.cpp/378 [Can't shmget, pro
bably not enough shared memory space free: Invalid argument]

atom:/var/log/zm # free
total used free shared buffers cached
Mem: 1011924 451196 560728 0 16900 298380
-/+ buffers/cache: 135916 876008
Swap: 2104476 0 2104476

atom:/var/log/zm # df
Fájlrendszer 1K-blokk Foglalt Szabad Fo.% Csatl. pont
/dev/sda10 49232744 3136048 43595780 7% /
devtmpfs 505748 284 505464 1% /dev
tmpfs 505960 4 505956 1% /dev/shm

[hengst]

show us zmwatch.log ( peace of it )

also , maybe
http://www.zoneminder.com/wiki/index.php/Ubuntu_7.04
might be helpful.

[hengst]

crossed your post ,

regarding shared mem try:

# To increase the shared memory on a live system to test,you have to be root !
so that would be :

sudo -i
echo 134217728 >/proc/sys/kernel/shmall
echo 134217728 >/proc/sys/kernel/shmmax

[aruzsi]

show us zmwatch.log ( peace of it )

zmwatch[8007].INF [Watchdog starting]
zmwatch[8007].INF [Watchdog pausing for 30 seconds]
zmwatch[8007].ERR [Can't get shared memory id '7a6d0001', 1: No such file or dir
zmwatch[8007].ERR [Can't get shared memory id '7a6d0001', 1: No such file or dir
zmwatch[8007].FAT [Can't execute: MySQL server has gone away]
zmwatch[5759].INF [Watchdog starting]
zmwatch[5759].INF [Watchdog pausing for 30 seconds]
zmwatch[14598].INF [Watchdog starting]
zmwatch[14598].INF [Watchdog pausing for 30 seconds]
zmwatch[14787].INF [Watchdog starting]
zmwatch[14787].INF [Watchdog pausing for 30 seconds]
zmwatch[14963].INF [Watchdog starting]
zmwatch[14963].INF [Watchdog pausing for 30 seconds]

[aruzsi]

echo 134217728 >/proc/sys/kernel/shmall
echo 134217728 >/proc/sys/kernel/shmmax

Without any modification my values are:

shmmax: 4294967295
shmall: 268435200

I think my values are higher. Do you agree?

[aruzsi]

shmmax: 4294967295
shmall: 268435200

Something is not clear for me:

atom:/proc/sys/kernel # ipcs

------- Osztott memóriaszegmensek --------
kulcs o.m.-az tulajdonos jogok bájt csat.szám állapot
0x00000000 0 lxdm 600 393216 2 cél
0x00000000 32769 lxdm 600 393216 2 cél
0x00000000 98306 root 600 67108864 11 cél
0x7a6d0001 229379 wwwrun 700 3073192 0

[aruzsi]

Bigger log: (I think went further without I modified shmem but modified permission video0 to 777)

zmc_dvideo0[15655].INF-zm_debug.c/292 [New Debug Level = 9, New Debug Log = /var/log/zm/zm_debug.log.15655]
zmc_dvideo0[15655].DB1-zm_monitor.cpp/1712 [Got 1 monitors]
zmc_dvideo0[15655].DB2-zm_local_camera.cpp/286 [V4L2 support enabled, using V4L2 api]
zmc_dvideo0[15655].DB1-zm_monitor.cpp/338 [monitor purpose=1]
zmc_dvideo0[15655].DB1-zm_monitor.cpp/345 [mem.size=9217192]
zmc_dvideo0[15655].DB1-zm_zone.cpp/50 [Initialised zone 0/All - 1 - 320x240 - Rgb:ff0000, CM:3, MnAT:15, MxAT:0, MnAP:50, MxAP:75000, FB:3x3, MnFP:50, MxFP:50000, MnBS:10, MxBS:0, MnB:0, MxB:0, OF: 0]
zmc_dvideo0[15655].DB9-zm_image.cpp/1355 [x1:0,y1:239 x2:0,y2:0]
zmc_dvideo0[15655].DB9-zm_image.cpp/1355 [x1:0,y1:0 x2:319,y2:0]
zmc_dvideo0[15655].DB9-zm_image.cpp/1355 [x1:319,y1:0 x2:319,y2:239]
zmc_dvideo0[15655].DB9-zm_image.cpp/1355 [x1:319,y1:239 x2:0,y2:239]
zmc_dvideo0[15655].DB9-zm_image.cpp/1375 [0: min_y: 0, max_y:239, min_x:0.00, 1/m:-0.00]
zmc_dvideo0[15655].DB9-zm_image.cpp/1375 [1: min_y: 0, max_y:239, min_x:319.00, 1/m:0.00]
zmc_dvideo0[15655].DB9-zm_image.cpp/1389 [Moving global edge]
zmc_dvideo0[15655].DB9-zm_image.cpp/1389 [Moving global edge]
zmc_dvideo0[15655].DB9-zm_image.cpp/1410 [0 - 0: min_y: 0, max_y:239, min_x:0.00, 1/m:-0.00]
...
zmc_dvideo0[15655].DB9-zm_image.cpp/1317 [x:2, y:239.00]
zmc_dvideo0[15655].DB9-zm_image.cpp/1317 [x:1, y:239.00]
zmc_dvideo0[15655].DB1-zm_monitor.cpp/1814 [Loaded monitor 1(Monitor-1), 1 zones]
zmc_dvideo0[15655].INF-zmc.cpp/188 [Starting Capture]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/349 [Opening video device /dev/video0]
zmc_dvideo0[15655].DB2-zm_local_camera.cpp/355 [V4L2 support enabled, using V4L2 api]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/360 [Checking video device capabilities]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/370 [Setting up video format]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/399 [Setting up request buffers]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/427 [Setting up 8 data buffers]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/465 [Configuring video source]
zmc_dvideo0[15655].WAR-zm_local_camera.cpp/1279 [Hue control is not suppported]
zmc_dvideo0[15655].WAR-zm_local_camera.cpp/1336 [Saturation control is not suppported]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/654 [Setting up static colour tables]
zmc_dvideo0[15655].DB2-zm_local_camera.cpp/1439 [Priming capture]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/1443 [Queueing buffers]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/1459 [Starting video stream]
zmc_dvideo0[15655].DB2-zm_local_camera.cpp/1485 [Pre-capturing]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/1491 [Capturing]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/1514 [Capturing 1 frames]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/1538 [Captured frame 0/1 from channel 0]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/1572 [Doing format conversion]
zmc_dvideo0[15655].DB3-zm_local_camera.cpp/1878 [Assigning image]
zmc_dvideo0[15655].INF-zm_signal.cpp/72 [Got signal 11 (Segmentation fault), crashing]
zmc_dvideo0[15655].ERR-zm_signal.cpp/84 [Signal address is 0xb78ce000, from 0xb72a83f6]
zmc_dvideo0[15655].ERR-zm_signal.cpp/122 [Backtrace: /lib/libc.so.6(memcpy+0x46) [0xb72a83f6]]
zmc_dvideo0[15655].ERR-zm_signal.cpp/122 [Backtrace: /lib/libc.so.6(memcpy+0x46) [0xb72a83f6]]
zmc_dvideo0[15655].ERR-zm_signal.cpp/122 [Backtrace: /usr/bin/zmc() [0xbfc4804]]
zmc_dvideo0[15655].ERR-zm_signal.cpp/122 [Backtrace: /usr/bin/zmc() [0x806e604]]
zmc_dvideo0[15655].ERR-zm_signal.cpp/122 [Backtrace: /usr/bin/zmc() [0x804c5f4]]
zmc_dvideo0[15655].ERR-zm_signal.cpp/122 [Backtrace: /lib/libc.so.6(__libc_start_main+0xfe) [0xb7246c0e]]
zmc_dvideo0[15655].INF-zm_signal.cpp/125 [Backtrace complete, please execute the following command for more information]
zmc_dvideo0[15655].INF-zm_signal.cpp/126 [addr2line -e /lib/libc.so.6(__libc_start_main+0xfe) 0xb72a83f6 0xb72a83f6 0xbfc4804 0x806e604 0x804c5f4 0xb7246c0e]

[hengst]

still looks like problem i had with crashing streams. and couldnt read the problem in the log files.

from my own post :

when googling fr the answer about the error :

[Can't get shared memory id '7a6d0002', 2: No such file or directory]

i always did get lot of searchresults about setting the shared memory thing

could change that settings but the error wouldnt get away and i still did get lockups in the montage view.

till i found that setting the "Maximum FPS" to something like "5" solved my problem regarding lockups.

so i think letting this option to default , ( wich is nothing ) it eats up all its memory or something and then crashes the source.

also Maximum FPS set to 5 did get rid of those [Can't get shared memory id '7a6d0002', 2: No such file or directory] errors in the zmwatch.log[/code]

do you have set the Max FPS ? , would you try it setting it to 5 or so to test ?

[aruzsi]

Max. FPS was 5.

[aruzsi]

BTW:
Do you think is this a camera problem?

I asked my colleagues to give me an other webcam for a test... in some days I'll get them.

At home, on my notebook (DELL E6400 with 4GB RAM) there is a built in webcam. OS is Ubuntu 10.04 64 bit and ZM doesn't work, either.
The situation is almost the same. Tonight I'm going to setup higher debug level and I'm going to test.

This other test machine is a small Atom PC with 1GB RAM and external USB webcam.

[hengst]

your other software can use the USB cam, so think zm should be able too.

iḿ strugling long time now with Panasonic IP cams and yesterday i found those issues with shared mem and Max FPS settings where causing my cams crashing random.

logs where telling me always shared memory problems. with a refresh all was running again for a short while.
so did me thinking about too much data to be stored in available shared mem , thats wy i increased shmall but still after a while crashes on my cams.
so second thought was to limit data from cams by setting Max FPS to 5.
and problems where solved.

looking at your deeper logs, i would say cam is initalized fine , but when getting pictures ( [Assigning image]) things are going wrong.

only thing i can help with from here is to point you to some other post
; http://www.zoneminder.com/forums/viewtopic.php?p=53728

[aruzsi]

I think I did everything what the mentioned topic wrote.
I read your problem which is related to mine a little bit.

Thanks for your help.
I think ZM is not my sw, yet.