Tutorial XUI BUG php 7.4

[halitvhd]

I found an error, see if it's similar to yours and you can fix it.
error code:

root:~# dmesg:

[836447.478120] php[366463]: segfault at 19 ip 00005567de5078a2 sp 00007ffef0b494c8 error 4 in php_7.4[5567de0e9000+c18000]

To view the content, you need to Sign In or Register.

 

[apolon]

I found an error, see if it's similar to yours and you can fix it.
error code:

root:~# dmesg:

[836447.478120] php[366463]: segfault at 19 ip 00005567de5078a2 sp 00007ffef0b494c8 error 4 in php_7.4[5567de0e9000+c18000]

*** Hidden text: cannot be quoted. ***

same problem after restart xui


[2734769.912208] php[22557]: segfault at 19 ip 00005591c72d48a2 sp 00007ffc445727a8 error 4 in php_7.4[5591c6eb6000+c18000]

 

[julian]

same problem after restart xui


[2734769.912208] php[22557]: segfault at 19 ip 00005591c72d48a2 sp 00007ffc445727a8 error 4 in php_7.4[5591c6eb6000+c18000]

I found an error, see if it's similar to yours and you can fix it.
error code:

root:~# dmesg:

[836447.478120] php[366463]: segfault at 19 ip 00005567de5078a2 sp 00007ffef0b494c8 error 4 in php_7.4[5567de0e9000+c18000]

*** Hidden text: cannot be quoted. ***

What exactly does this fix in panel usage?
What functions of the panel are affected

 

[Infest84]

What exactly does this fix in panel usage?
What functions of the panel are affected

This fix disables JIT (Just-In-Time) compilation in PHP’s OPcache. While JIT can improve performance in some PHP applications, it can also cause instability or segfaults (like the one you saw) — especially with panels like XUI that might not be fully compatible with it, or with certain PHP extensions.


By setting opcache.jit=0, you’re telling PHP to avoid using JIT, which prevents crashes like the php[xxxxx]: segfault at ... error in your dmesg logs.

What does this affect in panel usage?​

• It doesn’t remove any features or limit functionality.
• It just ensures that PHP runs more stably, especially under high load or when handling certain panel tasks like:
  
  • Loading large lists (series, users, etc.)
  • Parsing metadata (like TMDB info)
  • Handling heavy or concurrent API requests

So in short: you’re trading a potential small performance boost for much better stability, which is the right call for this kind of setup.