Shared memory error in zoneminder [SOLVED]

[deadtom]

New to zone minder. I have it installed on Kubuntu 10.04.2 LTS, kernel 2.6.32-32.

I'm getting the black screen and these errors in my logs:

zma_m2[22871]: ERR [Shared data not initialised by capture daemon]
zmdc[22798]: ERR ['zma -m 2' exited abnormally, exit status 255]
zmc_m2[22872]: INF [Starting Capture]
zmc_m2[22872]: ERR [Invalid response status 401: Unauthorized]
zmc_m2[22872]: ERR [Unable to get response]
zmc_m2[22872]: ERR [Failed to capture image from monitor 2 (0/1)]
zmdc[22798]: ERR ['zmc -m 2' exited abnormally, exit status 255]
zmwatch[22830]: ERR [Can't get shared memory id '7a6d0002', 2: No such file or directory]
zmwatch[22830]: last message repeated 5 times
zmwatch[22830]: ERR [Can't get shared memory id '7a6d0002', 2: No such file or directory]
zmwatch[22830]: ERR [Can't get shared memory id '7a6d0002', 2: No such file or directory]
zmdc[22798]: INF [Starting pending process, zma -m 2]
zmdc[22798]: INF ['zma -m 2' starting at 11/06/04 13:32:28, pid = 22909]
zmdc[22798]: INF [Starting pending process, zmc -m 2]
zmdc[22798]: INF ['zmc -m 2' starting at 11/06/04 13:32:28, pid = 22910]
zmdc[22910]: INF ['zmc -m 2' started at 11/06/04 13:32:28]
zmdc[22909]: INF ['zma -m 2' started at 11/06/04 13:32:28]
zmc_m2[22910]: INF [Debug Level = 0, Debug Log = <none>]
zma_m2[22909]: INF [Debug Level = 0, Debug Log = <none>]
zma_m2[22909]: ERR [Shared data not initialised by capture daemon]
zmdc[22798]: ERR ['zma -m 2' exited abnormally, exit status 255]
zmc_m2[22910]: INF [Starting Capture]
zmc_m2[22910]: ERR [Invalid response status 401: Unauthorized]
zmc_m2[22910]: ERR [Unable to get response]
zmc_m2[22910]: ERR [Failed to capture image from monitor 2 (0/1)]
zmdc[22798]: ERR ['zmc -m 2' exited abnormally, exit status 255]
zmwatch[22830]: ERR [Can't get shared memory id '7a6d0002', 2: No such file or directory]
zmwatch[22830]: ERR [Can't get shared memory id '7a6d0002', 2: No such file or directory]

I've found a lot of posts here and on other forums about setting the shared memory, I've done that with a variety of different memory settings.

/etc/sysctl.conf currently reads:

kernel.shmall = 167772160
kernel.shmmax = 335544320

output of ipcs -l:

------ Shared Memory Limits --------
max number of segments = 4096
max seg size (kbytes) = 327680
max total shared memory (kbytes) = 671088640
min seg size (bytes) = 1

------ Semaphore Limits --------
max number of arrays = 128
max semaphores per array = 250
max semaphores system wide = 32000
max ops per semop call = 32
semaphore max value = 32767

------ Messages: Limits --------
max queues system wide = 1705
max size of message (bytes) = 8192
default max size of queue (bytes) = 16384

Another forum suggested adding these lines to /usr/bin/zmdc.pl:

$ENV{LD_PRELOAD} = '/usr/lib/libv4l/v4l1compat.so';
$ENV{LD_PRELOAD} = '/usr/lib/libv4l/v4l2convert.so';

Still no good.

I've added the www-data user to the video group as suggested on one forum but no luck.

I'm completely stuck now. Any help is greatly appreciated.

[deadtom]

Re: Shared memory error in zoneminder

The problem was this right here:

zmc_m2[22872]: ERR [Invalid response status 401: Unauthorized]

I had a mistake in the credentials line in the source.

[GreyGeek]

Re: Shared memory error in zoneminder [SOLVED]

I see you fixed your problem. I noticed that the Debian documentation for ZoneMinder was over 5 years old. A LOT has changed with Debian (and Kubuntu) and most monitors (cameras) are expected to be UVC and others will require a special driver.

How is it working out for you. Can you see images and does the system alert you if an image changes?

[deadtom]

Re: Shared memory error in zoneminder [SOLVED]

I haven't gotten that far with it yet. I'll play with it some more this evening and let you know how it goes.

[Guest]

Re: Shared memory error in zoneminder [SOLVED]

Not sure if anyone will read this thread, but I seem to always end up at the shared memory error. I compiled zoneminder and installed on mysql and perl and php (all of which I did wrong or not at all but hopefully fixed). I also had a wrong file for init.d, some permissions problems and I am unsure of the camera settings (although I found most of those online).

But I still get the shared memory error described above and am wondering what causes it and how to debug it.