ERR [zmu] [Got empty memory map file size 0

[IlyaT]

Hi!
Sorry about poor English because it is not my native language.
I've been using the ZM 1.32 for many months and had no problems.Then I started getting errors in logs with a lot of false positives.I upgraded to 1.34 but it did not help.If I connect to the camera via VLC during a problem, I see that the image is transmitted steadily.I tried to change the motherboard and processor and test the memory.I have no problem with space on all devices including tmpfs. I use docker container for zm

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Oct  1 07:49:41 ce32575d3cff zma_m1[29488]: ERR [zma_m1] [Got empty memory map file size 0, is the zmc process for this monitor running?]
Oct  1 07:49:41 ce32575d3cff zmdc[1007]: ERR ['zma -m 1' exited abnormally, exit status 255]
Oct  1 07:49:48 ce32575d3cff zmwatch[1080]: ERR [Memory map file '/dev/shm/zm.mmap.1' should have been 1160 but was instead 0]
Oct  1 07:49:53 ce32575d3cff zmu[29491]: ERR [zmu] [Got empty memory map file size 0, is the zmc process for this monitor running?]
Oct  1 07:49:54 ce32575d3cff zmu[29491]: ERR [zmu] [Can't connect to capture daemon: 1 42]
Oct  1 07:49:54 ce32575d3cff zms_m1[29489]: ERR [zms_m1] [Got empty memory map file size 0, is the zmc process for this monitor running?]
Oct  1 07:49:54 ce32575d3cff zms_m1[29489]: ERR [zms_m1] [Unable to connect to monitor id 1 for streaming]
Oct  1 07:49:54 ce32575d3cff zma_m1[29495]: ERR [zma_m1] [Got empty memory map file size 0, is the zmc process for this monitor running?]
Oct  1 07:49:54 ce32575d3cff zms_m1[29497]: ERR [zms_m1] [Got empty memory map file size 0, is the zmc process for this monitor running?]
Oct  1 07:49:54 ce32575d3cff zms_m1[29489]: ERR [zms_m1] [Unable to connect to zmc process for monitor 1]
Oct  1 07:49:54 ce32575d3cff zmdc[1007]: ERR ['zma -m 1' exited abnormally, exit status 255]
Oct  1 07:49:54 ce32575d3cff zms_m1[29497]: ERR [zms_m1] [Unable to connect to monitor id 1 for streaming]
Oct  1 07:49:55 ce32575d3cff zms_m1[29497]: ERR [zms_m1] [Unable to connect to zmc process for monitor 1]
Oct  1 07:49:56 ce32575d3cff zma_m1[29523]: ERR [zma_m1] [Shared data not initialised by capture daemon for monitor 42]
Oct  1 07:49:56 ce32575d3cff zmdc[1007]: ERR ['zma -m 1' exited abnormally, exit status 255]

[burger]

Post camera make model and settings under Zoneminder.

[IlyaT]

For some indirect reasons, I decided that the problem may be in the switch. I have installed a new switch and the problem is not repeated.