Public bug reported: We have been having intermittent problems with incorrect URLs being generated on some of our web pages since upgrading to the apache2 version 2.2.14-5ubuntu8.8
The problems seem to occur during periods where the site has higher traffic levels. The URLs are being generated by the CakePHP route module which uses mod_rewrite. The generated URLs appear to have text from several different unrelated URLs all mixed together. For example when the generated URL should have been: http://amblingbooks.com/books/category/fiction/adventure The generated URL instead ended up as http://amblingbooks.com/index.php/Pira/books/view/media/media/image /4c9ae47d-b3cc- 4a21-8668-76b51b6b93e0/resize:width|71;height|130/books/view/books/view/media/media/image/4c9aed09-69c0-4e86 -882f- 327c1b6b93e0/resize:width|71;height|130/books/view/books/category/non_fiction/books/view/media/media/image /4f21e8cc-62cc-4a81-9bfd- 67a41b6b93e0/resize:width|71;height|130/media/media/image/4ce1cc94-fc74-48c2-a363-6bb61b6b93e0/resize:width|71;height|130/media/media/image /4f3b130b- 903c-4476-a765-3bca1b6b93e0/resize:width|71;height|130/media/media/image/4f21e8b2-3ee4-42b4 -b69d- 67a41b6b93e0/resize:width|71;height|130/media/media/image/4c9ae4b1-f9d4-4722 -ae0b- 76b51b6b93e0/resize:width|71;height|130/media/media/image/4efa257d-8114-4c09-8752-23b8c0a89265/resize:width|71;height|130/media/media/image /4c9ae47d-b3cc- 4a21-8668-76b51b6b93e0/resize:width|71;height|130/media/media/image /4c9aef7b-401c- 42d9-ae34-327c1b6b93e0/resize:width|71;height|130/books/index/books/view/media/media/image/4c9ae5ab-e330-4b30-96b7-76b51b6b93e0/resize:width|71;height|130/books/view/media/media/image/4f184db8-ff48 -494c-a95b-7feec0a89265/resize:width|71;height|130/adventure which somehow has text from several other URLs mixed into it. We have been tracking this problem for several days now. We are seeing the problem intermittently, sometimes the URLs generate correctly and other times they do not. Our investigation so far is suggesting that these problems started happening when we picked up the upgrade to apache2 version 2.2.14-5ubuntu8.8 which includes a change in the mod_rewrite logic. Is it possible that the recent mod_rewrite change has introduced an issue with a buffer not being initialized properly and using old incorrect data from the uninitialized buffer when generating the URL, or introduced an SMP window where during heavy traffic levels with multiple threads concurrently executing the mod_rewrite logic it somehow allows incorrect URLs to be generated? Our server is running Ubuntu 10.04.4 LTS ** Affects: apache2 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to apache2 in Ubuntu. https://bugs.launchpad.net/bugs/938078 Title: Problems with mod_rewrite since updating to 2.2.14-5ubuntu8.8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/938078/+subscriptions -- Ubuntu-server-bugs mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
