Hyperiond hangs on start if compiled with ENABLE_V4L2 on RP2

[szlop]

• [x] I confirm that this is an issue rather than a question.

Bug report

Steps to reproduce

Start hyperiond without any config on Raspberry Pi 2.

What is expected?

Normal startup.

What is actually happening?

Startup does not finish, the webserver is not starting. Instead, one CPU core goes to 100% load and hyperiond starts allocating memory, till the system gets unresponsive after about one minute. Hyperiond starts normally, if compiled with ENABLE_V4L2 = Off.

hyperiond-debug.txt

System

Hyperion Server:

• Build: master (GitHub-4d429a27/08de6b78-1590779969)
• Build time: Jun 7 2020 16:43:50
• Git Remote: https://github.com/hyperion-project/hyperion.ng.git
• Version: 2.0.0-alpha.6
• UI Lang: auto (BrowserLang: de)
• UI Access: expert
• Avail Capt: dispmanx,framebuffer,qt

Hyperion Server OS:

• Distribution: Raspbian GNU/Linux 10 (buster)
• Arch: arm
• Kernel: linux (5.4.44-v7+ (WS: 32))
• Browser: Mozilla/5.0 (X11; Linux x86_64; rv:77.0) Gecko/20100101 Firefox/77.0

The System info is copied from a build with ENABLE_V4L2 = Off. I am running Rasbian Buster without xserver. There is an Arduino connected via USB, which is meant to be used by the adalight driver. Since the webserver is not starting, I have not configured anything. I got identical results for the armv7 deb package from the Hyperion 2.0.0-alpha.6 release and commit 08de6b7.

[Paulchen-Panther]

Fixed in PR #820

[szlop]

Thanks a lot!

[szlop]

Fixed in PR #820

Today I tested this commit, it fixes the issue for me.