https://bugzilla.wikimedia.org/show_bug.cgi?id=46337

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            Bug ID: 46337
           Summary: Fatal error: Allowed memory size exhausted
           Product: MediaWiki extensions
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: Unprioritized
         Component: Semantic MediaWiki
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected], [email protected],
                    [email protected], [email protected]
    Classification: Unclassified
   Mobile Platform: ---

I'm not sure if bug reports still get read these days, but here goes anyway.
Since the upgrade to SMW 1.8.0.4, I frequently get the following error message: 

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to
allocate 8208 bytes) in
..../extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_Sql3SmwIds.php
on line 835 

The line in question appears to be "return unserialize( $hash );"

More sporadically, one of these messages appears:

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to
allocate 32 bytes) in ...includes/GlobalFunctions.php on line 874 

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to
allocate 326 bytes) in ...includes/GlobalFunctions.php on line 859

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to
allocate 64 bytes) in ...includes/db/Database.php on line 1948

I've already set $wgMemoryLimit to "1024MB", so this may not represent an
actual memory issue. 

FWIW:
* I noticed that the table "smw_object_ids" is nearly as large as "text".
* While previously a data refresh could be run overnight, it now took five or
six days to complete. 
* See my other bug reports for possibly related issues
* No shell access available

Specifications:
MW 1.19.2
PHP 5.3.3-7+squeeze15 (cgi-fcgi)
MySQL5.1.66-0+squeeze1

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