[TYPO3-english] blank backend revisited
pedersen at frm2.tum.de
Thu Nov 24 09:05:35 CET 2011
Am 24.11.2011 08:56, schrieb Katja Lampela:
> Again and again nowadays I run into this same problem with TYPO3 4.5.x,
> either no backend login screen at all (blank page) or after login, there
> is blank page.
> Now for starters, YES I have all these suggestions on:
> BUT there is no error reporting/visible what so ever. Not in TYPO3 view,
> not in server error log.
> For example now with the latest problem site (blank page after login to
> BE) in error log there is only error about not loading favicon.ico but
> this shouldn't be the reason for blank BE.
> I have a feeling this has something to do with the ajax features of
> backend. Because this happens often after updating ajax extensions.
> Now, my questions are, is there
> 1) a way to downgrade an extension without Extension Manager? Or do I
> have to completely disable the ext in install tool and check if that helps.
> 2. a way to disable ajax of BE?
I remember similiar sounding problems. I traced them back to
eAccelerator crashing (core dump) the apache. This will give only an
entry in the main apache logfiles (so, if you only have access to vhost
logs, you will not see anything). After disabling eAccelerator and
switching to APC the BE works again.
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