I updated from 1.06 to 1.13 and was no longer able to view anything related to Taxonomy. Even when trying to list the taxonomy terms on the admin section, I received a fatal error. I was able to list the taxonomy vocabulary names, but not the terms for each.

If I was using a debugger I received the following message: Fatal error: Maximum function nesting level of '256' reached, aborting

If I was not using a debugger I received the following message: Fatal error: Allowed memory size of 1073741824 bytes exhausted (tried to allocate 20480 bytes)

For the record, this is a dev machine & the bytes were cranked up to help prove this was an infinite loop.

With help, I was able to get Drupal working by commenting out the lightning_core_entity_load function.

The following is a partial stack trace (since this is an infinite loop) of trying to list the terms in the admin structure page:

#	Time	Memory	Function	Location
1	0.0030	357528	{main}( )	...\index.php:0
2	0.0140	384760	Drupal\Core\DrupalKernel->handle( )	...\index.php:19
3	0.0440	1430840	Stack\StackedHttpKernel->handle( )	...\DrupalKernel.php:652
4	0.0440	1430840	Drupal\Core\StackMiddleware\NegotiationMiddleware->handle( )	...\StackedHttpKernel.php:23
5	0.0440	1430840	Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle( )	...\NegotiationMiddleware.php:50
6	0.0440	1430840	Drupal\page_cache\StackMiddleware\PageCache->handle( )	...\ReverseProxyMiddleware.php:47
7	0.0440	1432784	Drupal\page_cache\StackMiddleware\PageCache->pass( )	...\PageCache.php:78
8	0.0440	1432784	Drupal\Core\StackMiddleware\KernelPreHandle->handle( )	...\PageCache.php:99
9	0.0620	1774112	Drupal\Core\StackMiddleware\Session->handle( )	...\KernelPreHandle.php:47
10	0.0750	1807568	Symfony\Component\HttpKernel\HttpKernel->handle( )	...\Session.php:57
11	0.0750	1807872	Symfony\Component\HttpKernel\HttpKernel->handleRaw( )	...\HttpKernel.php:62
12	0.2610	3944856	call_user_func_array:{C:\Users\username\DevLocal\DevDesktop\basinmembers-dev\docroot\vendor\symfony\http-kernel\HttpKernel.php:139} ( )	...\HttpKernel.php:139
13	0.2610	3944912	Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}( )	...\HttpKernel.php:139
14	0.2610	3944912	Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext( )	...\EarlyRenderingControllerWrapperSubscriber.php:97
15	0.2610	3946656	Drupal\Core\Render\Renderer->executeInRenderContext( )	...\EarlyRenderingControllerWrapperSubscriber.php:124
16	0.2610	3946936	Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}( )	...\Renderer.php:574
17	0.2610	3946936	call_user_func_array:{C:\Users\username\DevLocal\DevDesktop\basinmembers-dev\docroot\core\lib\Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber.php:123} ( )	...\EarlyRenderingControllerWrapperSubscriber.php:123
18	0.2610	3947240	Drupal\Core\Controller\FormController->getContentResult( )	...\EarlyRenderingControllerWrapperSubscriber.php:123
19	0.2770	4078936	Drupal\Core\Form\FormBuilder->buildForm( )	...\FormController.php:74
20	0.2770	4078960	Drupal\Core\Form\FormBuilder->retrieveForm( )	...\FormBuilder.php:271
21	0.2770	4081384	call_user_func_array:{C:\Users\username\DevLocal\DevDesktop\basinmembers-dev\docroot\core\lib\Drupal\Core\Form\FormBuilder.php:514} ( )	...\FormBuilder.php:514
22	0.2770	4081704	Drupal\taxonomy\Form\OverviewTerms->buildForm( )	...\FormBuilder.php:514
23	0.2830	4083656	Drupal\taxonomy\TermStorage->loadTree( )	...\OverviewTerms.php:108
24	0.2840	4144424	Drupal\Core\Entity\EntityStorageBase->loadMultiple( )	...\TermStorage.php:226
25	0.3670	5541192	Drupal\Core\Entity\EntityStorageBase->postLoad( )	...\EntityStorageBase.php:249
26	0.3670	5541512	lightning_core_entity_load( )	...\EntityStorageBase.php:301
27	0.3710	5563488	Drupal\Core\Url->getInternalPath( )	...\lightning_core.module:62
28	0.3710	5563488	Drupal\Core\Render\MetadataBubblingUrlGenerator->getPathFromRoute( )	...\Url.php:772
29	0.3710	5563488	Drupal\Core\Routing\UrlGenerator->getPathFromRoute( )	...\MetadataBubblingUrlGenerator.php:68
30	0.3710	5633832	Drupal\Core\Routing\UrlGenerator->processRoute( )	...\UrlGenerator.php:123
31	0.3710	5633832	Drupal\Core\RouteProcessor\RouteProcessorManager->processOutbound( )	...\UrlGenerator.php:404
32	0.3710	5634128	Drupal\uc_catalog\Access\RouteProcessor->processOutbound( )	...\RouteProcessorManager.php:52
33	0.3730	5635752	Drupal\Core\Entity\EntityStorageBase->load( )	...\RouteProcessor.php:49
34	0.3730	5636024	Drupal\Core\Entity\EntityStorageBase->loadMultiple( )	...\EntityStorageBase.php:212
35	0.3730	5645824	Drupal\Core\Entity\EntityStorageBase->postLoad( )	...\EntityStorageBase.php:249
36	0.3730	5646144	lightning_core_entity_load( )	...\EntityStorageBase.php:301
37	0.3730	5653096	Drupal\Core\Url->getInternalPath( )	...\lightning_core.module:62
38	0.3730	5653096	Drupal\Core\Render\MetadataBubblingUrlGenerator->getPathFromRoute( )	...\Url.php:772
39	0.3730	5653096	Drupal\Core\Routing\UrlGenerator->getPathFromRoute( )	...\MetadataBubblingUrlGenerator.php:68
40	0.3730	5653312	Drupal\Core\Routing\UrlGenerator->processRoute( )	...\UrlGenerator.php:123
41	0.3730	5653312	Drupal\Core\RouteProcessor\RouteProcessorManager->processOutbound( )	...\UrlGenerator.php:404
42	0.3730	5653312	Drupal\uc_catalog\Access\RouteProcessor->processOutbound( )	...\RouteProcessorManager.php:52
43	0.3730	5653312	Drupal\Core\Entity\EntityStorageBase->load( )	...\RouteProcessor.php:49
44	0.3730	5653584	Drupal\Core\Entity\EntityStorageBase->loadMultiple( )	...\EntityStorageBase.php:212
45	0.3730	5663384	Drupal\Core\Entity\EntityStorageBase->postLoad( )	...\EntityStorageBase.php:249
46	0.3730	5663704	lightning_core_entity_load( )	...\EntityStorageBase.php:301
47	0.3740	5666560	Drupal\Core\Url->getInternalPath( )	...\lightning_core.module:62
48	0.3740	5666560	Drupal\Core\Render\MetadataBubblingUrlGenerator->getPathFromRoute( )	...\Url.php:772
49	0.3740	5666560	Drupal\Core\Routing\UrlGenerator->getPathFromRoute( )	...\MetadataBubblingUrlGenerator.php:68
50	0.3740	5666776	Drupal\Core\Routing\UrlGenerator->processRoute( )	...\UrlGenerator.php:123
51	0.3740	5666776	Drupal\Core\RouteProcessor\RouteProcessorManager->processOutbound( )	...\UrlGenerator.php:404
52	0.3740	5666776	Drupal\uc_catalog\Access\RouteProcessor->processOutbound( )	...\RouteProcessorManager.php:52
53	0.3740	5666776	Drupal\Core\Entity\EntityStorageBase->load( )	...\RouteProcessor.php:49
54	0.3740	5667048	Drupal\Core\Entity\EntityStorageBase->loadMultiple( )	...\EntityStorageBase.php:212
55	0.3740	5676848	Drupal\Core\Entity\EntityStorageBase->postLoad( )	...\EntityStorageBase.php:249
56	0.3740	5677168	lightning_core_entity_load( )	...\EntityStorageBase.php:301
57	0.3740	5680024	Drupal\Core\Url->getInternalPath( )	...\lightning_core.module:62
58	0.3740	5680024	Drupal\Core\Render\MetadataBubblingUrlGenerator->getPathFromRoute( )	...\Url.php:772

The above stack trace would repeat until it hits whatever the threshold for nested functions or memory is.

CommentFileSizeAuthor
#9 2831550-9.patch1.64 KBphenaproxima
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Comments

mattferderer created an issue. See original summary.

balsama’s picture

Hi Matt. Did you enable the lightning_preview module after updating to 1.13 (lightning_preview was introduced in 1.10). That module relies on multiversion and a number of experimental modules - and is marked experimental itself. And issues like these with existing content are expected. Can you try updating without turning on lightning_preview?

If you _don't_ have lightning_preview enabled, I'd be interested to know more about the structure of your vocabulary. Custom fields, etc so I can try to reproduce.

mattferderer’s picture

I have not enabled lightning_preview at any time.

At first I thought it was an issue with my terms as well but I created a new vocabulary set without any additional fields. The issue existed when trying to view those terms as well.

balsama’s picture

Ok. So steps to reproduce sound like simply: 1) have a vocabulary and some terms 2) update

I'll see if I can find anything. Thanks.

phenaproxima’s picture

Status: Active » Postponed (maintainer needs more info)

I can't reproduce this. Here's what I did:

  1. Installed Lightning 1.06.
  2. Created a taxonomy vocabulary.
  3. Generated many terms in that vocabulary using Devel Generate.
  4. Updated to Lightning 1.13.
  5. Looked at the list of terms in the vocabulary.

It worked without complaint. I was logged in as user 1 at the time. Something else may be going on here -- is it possible there is custom code that's breaking stuff?

mattferderer’s picture

It's possible another module may be causing part of the issue or maybe a database issue. Would that other module's function show up in the stack trace? Any suggestions on next steps in troubleshooting?

phenaproxima’s picture

I think the problem is down to this line of the backtrace:

Drupal\uc_catalog\Access\RouteProcessor->processOutbound( )

It is probably doing an entity load, which in turn is invoking Lightning's entity_load, which is causing the infinite loop. Is uc_catalog a contrib module?

phenaproxima’s picture

Status: Postponed (maintainer needs more info) » Active

Never mind, I found it: http://cgit.drupalcode.org/ubercart/tree/uc_catalog/src/Access/RouteProc...

The problem is a collision of assumptions between Ubercart and Lightning. I think it's probably up to Lightning to fix this, because I don't really see how Ubercart could be doing things differently.

phenaproxima’s picture

Status: Active » Needs review
FileSize
1.64 KB

I have written a patch for Lightning that oughta help. Apply this and see if it works, and if it does, we'll commit it straightaway.

mattferderer’s picture

I applied the patch & it seems to have fixed the issue without creating any new issues. Thank you for fixing this!

balsama’s picture

Status: Needs review » Reviewed & tested by the community

  • phenaproxima committed 8f96673 on 8.x-1.x
    Issue #2831550 by phenaproxima: Lightning Core Entity Load creating...

  • phenaproxima committed 55250ae on 8.x-2.x
    Issue #2831550 by phenaproxima: Lightning Core Entity Load creating...
phenaproxima’s picture

Status: Reviewed & tested by the community » Fixed
phenaproxima’s picture

Status: Fixed » Closed (fixed)

Closing to keep our issue queue tidy.