Having some trouble pinning down this issue, but having quite a few weird issues with the webGUI and it must be related to something filling up RAM. Any help is appreciated!

I've tried to generate the diagnostics file, but when I click Tools > Diagnostics > Download, I get the popup that the file will download and then nothing happens.

 

The syslog snippet available in webGUI is full of yellow and red warnings:

Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [error] 3275#3275: shpool alloc failed
Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [error] 3275#3275: nchan: Out of shared memory while allocating channel /diagnostic. Increase nchan_max_reserved_memory.
Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [alert] 3275#3275: *625513 header already sent while keepalive, client: 192.168.0.165, server: 0.0.0.0:80
Jan 14 11:35:33 dunbar kernel: nginx[3275]: segfault at 0 ip 0000000000000000 sp 00007ffd93cf4428 error 14 in nginx[400000+22000]
Jan 14 11:35:33 dunbar kernel: Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [alert] 12346#12346: worker process 3275 exited on signal 11
Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [crit] 3295#3295: ngx_slab_alloc() failed: no memory
Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [error] 3295#3295: shpool alloc failed
Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [error] 3295#3295: nchan: Out of shared memory while allocating channel /var. Increase nchan_max_reserved_memory.
Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [alert] 3295#3295: *625515 header already sent while keepalive, client: 192.168.0.165, server: 0.0.0.0:80
Jan 14 11:35:33 dunbar kernel: nginx[3295]: segfault at 0 ip 0000000000000000 sp 00007ffd93cf4428 error 14 in nginx[400000+22000]
Jan 14 11:35:33 dunbar kernel: Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [alert] 12346#12346: worker process 3295 exited on signal 11
Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [crit] 3296#3296: ngx_slab_alloc() failed: no memory
Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [error] 3296#3296: shpool alloc failed
Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [error] 3296#3296: nchan: Out of shared memory while allocating channel /cpuload. Increase nchan_max_reserved_memory.
Jan 14 11:35:33 dunbar nginx: 2022/01/14 11:35:33 [error] 3296#3296: *625522 nchan: error publishing message (HTTP status code 507), client: unix:, server: , request: "POST /pub/cpuload?buffer_length=1 HTTP/1.1", host: "localhost"
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [crit] 3296#3296: ngx_slab_alloc() failed: no memory
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [error] 3296#3296: shpool alloc failed
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [error] 3296#3296: nchan: Out of shared memory while allocating channel /disks. Increase nchan_max_reserved_memory.
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [error] 3296#3296: *625523 nchan: error publishing message (HTTP status code 507), client: unix:, server: , request: "POST /pub/disks?buffer_length=1 HTTP/1.1", host: "localhost"
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [crit] 3296#3296: ngx_slab_alloc() failed: no memory
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [error] 3296#3296: shpool alloc failed
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [error] 3296#3296: nchan: Out of shared memory while allocating channel /diagnostic. Increase nchan_max_reserved_memory.
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [alert] 3296#3296: *625524 header already sent while keepalive, client: 192.168.0.165, server: 0.0.0.0:80
Jan 14 11:35:34 dunbar kernel: nginx[3296]: segfault at 0 ip 0000000000000000 sp 00007ffd93cf4428 error 14 in nginx[400000+22000]
Jan 14 11:35:34 dunbar kernel: Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [alert] 12346#12346: worker process 3296 exited on signal 11
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [crit] 3299#3299: ngx_slab_alloc() failed: no memory
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [error] 3299#3299: shpool alloc failed
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [error] 3299#3299: nchan: Out of shared memory while allocating channel /var. Increase nchan_max_reserved_memory.
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [alert] 3299#3299: *625526 header already sent while keepalive, client: 192.168.0.165, server: 0.0.0.0:80
Jan 14 11:35:34 dunbar kernel: nginx[3299]: segfault at 0 ip 0000000000000000 sp 00007ffd93cf4428 error 14 in nginx[400000+22000]
Jan 14 11:35:34 dunbar kernel: Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [alert] 12346#12346: worker process 3299 exited on signal 11
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [crit] 3300#3300: ngx_slab_alloc() failed: no memory
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [error] 3300#3300: shpool alloc failed
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [error] 3300#3300: nchan: Out of shared memory while allocating channel /cpuload. Increase nchan_max_reserved_memory.
Jan 14 11:35:34 dunbar nginx: 2022/01/14 11:35:34 [error] 3300#3300: *625528 nchan: error publishing message (HTTP status code 507), client: unix:, server: , request: "POST /pub/cpuload?buffer_length=1 HTTP/1.1", host: "localhost"
Jan 14 11:35:35 dunbar nginx: 2022/01/14 11:35:35 [crit] 3300#3300: ngx_slab_alloc() failed: no memory
Jan 14 11:35:35 dunbar nginx: 2022/01/14 11:35:35 [error] 3300#3300: shpool alloc failed
Jan 14 11:35:35 dunbar nginx: 2022/01/14 11:35:35 [error] 3300#3300: nchan: Out of shared memory while allocating channel /disks. Increase nchan_max_reserved_memory.
Jan 14 11:35:35 dunbar nginx: 2022/01/14 11:35:35 [error] 3300#3300: *625535 nchan: error publishing message (HTTP status code 507), client: unix:, server: , request: "POST /pub/disks?buffer_length=1 HTTP/1.1", host: "localhost"

 

Any help on where I can start diagnosing this?

For what it's worth, this is what the Dashboard showed for RAM usage when I copied the above from syslog:
 

Edited January 14, 20224 yr by dgallaher

A-ha, found out how to generate diagnostics via the command line. Attaching here.

 

 

dunbar-diagnostics-20220114-1423.zip

Did you ever figure out what caused this? I am seeing similar error messages in my log. The WebUI becomes wonky when this happens as well.