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XF 1.1 Memory leak when deleting user group


Active member
I've been trying to delete a usergroup with ~50-100 members and every time I try, I get the following error message:

Fatal error: Allowed memory size of 134217728 bytes exhausted (etc)
There is nothing in the XF server error logs.

I could try increasing the max memory size but it seems that this is a bug/memory leak in xenforo considering the excessive memory usage (over 128MB).

Any ideas on how to fix this?

edit: Just found this post http://xenforo.com/community/threads/fatal-error-allowed-memory-size.5627/#post-85268

I disabled debug mode which resulted changed the issue to a timeout by the web server. However when I went back to the usergroup page, it seems it was deleted. Do I have to worry about any traces left due to the timeout?