WebUI: mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented #2649

PlayWithIt · 2024-02-09T17:22:16Z

PlayWithIt
Feb 9, 2024

Describe the issue you are experiencing

I had a working docker installation (on Linux mint, Intel based, with Image ID 4362ba0e95ba and others before). I upgraded the image to the most recent version (image ID fcd18820f085) using install-docker.sh.

The upgrade works, the container starts fine and shows no errors (using "docker logs ccu").

But the WebUI doesn't work:

Login OK, but the login screen already looks much different
after login I more or less have a blank screen in the browser, I only see
Die WebUI wird geladen...
(in Firefox) so trying to load the web-ui, but nothing happens.
In Chrome I really see nothing, so not even "WebUI wird geladen".

In the container I can see in /var/log/lighttpd-error.log lots of message like this

2024-02-09 17:45:55: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:45:55: (../src/gw_backend.c.281) establishing connection failed: socket: tcp:127.0.0.1:8183: Connection refused
2024-02-09 17:45:55: (../src/gw_backend.c.1007) all handlers for /esp/system.htm?sid=@Zwstoa2Xfw@&action=UpdateUI on  are down.
2024-02-09 17:45:55: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:45:56: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:45:56: (../src/gw_backend.c.358) gw-server re-enabled: tcp:127.0.0.1:8183 127.0.0.1 8183 
2024-02-09 17:45:59: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:02: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:06: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:09: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:10: (../src/server.c.1224) [note] graceful shutdown started
2024-02-09 17:46:10: (../src/server.c.1175) [note] pid 1393 continuing to handle 3 connection(s) in progress
2024-02-09 17:46:10: (../src/server.c.1933) server started (lighttpd/1.4.73)
2024-02-09 17:46:10: (../src/server.c.1224) [note] graceful shutdown started
2024-02-09 17:46:12: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:14: (../src/server.c.2332) server stopped by UID = 0 PID = 1068
2024-02-09 17:46:15: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:19: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:23: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
...
2024-02-09 18:05:51: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 18:05:56: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 18:06:02: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 18:06:06: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 18:06:12: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented

I already cleared browser cache, no difference

Describe the behavior you expected

WebUI should work as usual.

Steps to reproduce the issue

Upgrade from docker image 4362ba0e95ba to fcd18820f085 keeping the ccu data

What is the version this bug report is based on?

3.73.9.20240130

Which base platform are you running?

intelnuc (intel NUC)

Which HomeMatic/homematicIP radio module are you using?

HmIP-RFUSB

Anything in the logs that might be useful for us?

Error log of lighthttpd

2024-02-09 17:45:55: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:45:55: (../src/gw_backend.c.281) establishing connection failed: socket: tcp:127.0.0.1:8183: Connection refused
2024-02-09 17:45:55: (../src/gw_backend.c.1007) all handlers for /esp/system.htm?sid=@Zwstoa2Xfw@&action=UpdateUI on  are down.
2024-02-09 17:45:55: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:45:56: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:45:56: (../src/gw_backend.c.358) gw-server re-enabled: tcp:127.0.0.1:8183 127.0.0.1 8183 
2024-02-09 17:45:59: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:02: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:06: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:09: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:10: (../src/server.c.1224) [note] graceful shutdown started
2024-02-09 17:46:10: (../src/server.c.1175) [note] pid 1393 continuing to handle 3 connection(s) in progress
2024-02-09 17:46:10: (../src/server.c.1933) server started (lighttpd/1.4.73)
2024-02-09 17:46:10: (../src/server.c.1224) [note] graceful shutdown started
2024-02-09 17:46:12: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:14: (../src/server.c.2332) server stopped by UID = 0 PID = 1068
2024-02-09 17:46:15: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:19: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 17:46:23: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
...
2024-02-09 18:05:51: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 18:05:56: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 18:06:02: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 18:06:06: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
2024-02-09 18:06:12: (../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented

In the browser's web-console I can see "http 500 server error":

Additional information

No response

Answered by PlayWithIt

Feb 10, 2024

I now upgraded the kernel to 5.15.0 and this solves the problem.

CCU is now running with the latest docker image and CCU version 3.73.9.20240130 (the version before was 3.73.9.20231130).

View full answer

PlayWithIt · 2024-02-09T17:31:06Z

PlayWithIt
Feb 9, 2024
Author

Web-Console error:

Reverting back to image-id 4362ba0e95ba was OK, there I don't have error messages like
(../src/mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented
in the containers lighthttpd log file.

0 replies

jens-maus · 2024-02-09T17:57:51Z

jens-maus
Feb 9, 2024
Maintainer

Please tell more about your host system. Which HW, which CPU, etc.

And also please try to enter the container and try to manually execute tclsh to see if the same error appears. And please state which exact Versionstring this RaspberryMatic version has please check /VERSION

0 replies

PlayWithIt · 2024-02-10T07:00:59Z

PlayWithIt
Feb 10, 2024
Author

This is an Intel based mini computer with Intel Celeron CPU J3455, 4 Cores, Linux Mint, Kernel version 5.4.0-171.

I guess this might be a kernel problem / kernel too old:
just from the error message I think "fork/spawn" fails with the error message "function not implemented".

Is there a minimum kernel version requirement?

I'll check the tclsh and version as soon as possible.

0 replies

jens-maus · 2024-02-10T07:47:31Z

jens-maus
Feb 10, 2024
Maintainer

Thanks for the additional info. This really seems to be related to your hardware and changes that were performed to the docker platform compilation in RaspberryMatic.

In addition to manually trying to call tclsh, please provide details on the specific RaspberryMatic version that actually worked and the one where it started to break. Just stating the docker ID numbers is not enough. I really need the RaspberryMatic docker version numbers and the tags the containers have. In fact to me this sounds like you are using the "snapshot" tag rather than the "latest". Thus, with some nightly snapshot version it started to break. So please tell me the detailed version / commit SHA or RM Version string where it started to break.

6 replies

jollyjinx Feb 23, 2024

the version that works is:
version="ghcr.io/jens-maus/raspberrymatic@sha256:c9e99b35e7d0b1d3eaa36f1e38b53d97a4bd1a97c61c28d5ed741e29008ed38b"

which is 3.73.9.20231130

jens-maus Feb 23, 2024
Maintainer

so maybe the kernel 5.4 is too old ?

Yes it is! As @PlayWithIt pointed out already, you require a minimum of kernel 5.15 to run the images. Thus, update your host system accordingly.

jollyjinx Feb 23, 2024

I'm using ubuntu 20.4 LTS for a reason - a pity I have to upgrade now to 22.4. Will give it a try.

I thought that using docker images would prevent me from those kernel dependencies? Is that expected ?

jens-maus Feb 23, 2024
Maintainer

I'm using ubuntu 20.4 LTS for a reason - a pity I have to upgrade now to 22.4. Will give it a try.

No reason to bump to 22.4 to get a newer kernel. Just have a look for the HWE kernels. See

https://askubuntu.com/questions/1442208/how-to-enable-hwe-on-ubuntu-22-04

I thought that using docker images would prevent me from those kernel dependencies? Is that expected ?

Well, to some extend yes.

jollyjinx Feb 23, 2024

well I updated to 22.4LTS just to get my installation in an unbooting state. great ;-( But that 's not raspberrymatics fault - even though I'm using only docker containers the upgrade did fail. As I was not able to get the machine to boot again over the network I setup a new 22.4LTS 64bit installation and now it seems to work.
So here it was a kernel too old problem.

PlayWithIt · 2024-02-10T08:07:39Z

PlayWithIt
Feb 10, 2024
Author

I now upgraded the kernel to 5.15.0 and this solves the problem.

CCU is now running with the latest docker image and CCU version 3.73.9.20240130 (the version before was 3.73.9.20231130).

0 replies

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WebUI: mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented #2649

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WebUI: mod_cgi.c.1048) fork/spawn /bin/tclsh: Function not implemented #2649

PlayWithIt Feb 9, 2024

Describe the issue you are experiencing

Describe the behavior you expected

Steps to reproduce the issue

What is the version this bug report is based on?

Which base platform are you running?

Which HomeMatic/homematicIP radio module are you using?

Anything in the logs that might be useful for us?

Additional information

Replies: 5 comments · 6 replies

PlayWithIt Feb 9, 2024 Author

jens-maus Feb 9, 2024 Maintainer

PlayWithIt Feb 10, 2024 Author

jens-maus Feb 10, 2024 Maintainer

jollyjinx Feb 23, 2024

jens-maus Feb 23, 2024 Maintainer

jollyjinx Feb 23, 2024

jens-maus Feb 23, 2024 Maintainer

jollyjinx Feb 23, 2024

PlayWithIt Feb 10, 2024 Author

PlayWithIt
Feb 9, 2024

Replies: 5 comments 6 replies

PlayWithIt
Feb 9, 2024
Author

jens-maus
Feb 9, 2024
Maintainer

PlayWithIt
Feb 10, 2024
Author

jens-maus
Feb 10, 2024
Maintainer

jens-maus Feb 23, 2024
Maintainer

jens-maus Feb 23, 2024
Maintainer

PlayWithIt
Feb 10, 2024
Author