Search found 3 matches

by jcrews
Mon Sep 14, 2015 9:08 pm
Forum: ZoneMinder 1.28.x
Topic: Data corruption with mmapped shm (shared_data size conflict)
Replies: 6
Views: 2632

Re: Data corruption with mmapped shm (shared_data size confl

I thought I had email notification on, sorry about the delay. Yes, because all fds are closed by the parent, fd2 could be assigned to the shm file. That neatly defines the problem. in zmdc, there's a fork() that sets up a child process to do the server work (select, accept...). In that context, the ...
by jcrews
Thu Sep 10, 2015 6:53 pm
Forum: ZoneMinder 1.28.x
Topic: Data corruption with mmapped shm (shared_data size conflict)
Replies: 6
Views: 2632

Data corruption with mmapped shm (shared_data size conflict)

I've been using ZM with success for quite some time. Recently I bought an h.264 camera, and had quite a few log messages complaining about shared_data size mismatches (e.g., expected 336, got <large integer>). It mostly seemed to work fine, otherwise, however. zmwatch, which was complaining about ...
by jcrews
Sat Feb 01, 2014 12:25 am
Forum: ZoneMinder 1.26.x
Topic: Signal detection fails due to BGR-RGB assumption
Replies: 1
Views: 1756

Signal detection fails due to BGR-RGB assumption

After upgrading to ZM 1.26.x (currently at .5-git), I've noticed the cameras have changed from blue to red during a signal loss. The specified color is 75% blue, and signal losses are being reported as motion, so I took a look at zm_monitor.cpp. It turned out that when a remote camera fails, a frame ...