<?paul

PHP BUG - err mm:core: failed to open semaphore file

Wednesday, November 11. 2009

If you get an error when PHP launches along the lines of:
PHP Warning: PHP Startup: mm_create(0, /var/www/phpSessionStorage/session_mm_cli1000) failed, err mm:core: failed to open semaphore file (Permission denied) in Unknown on line 0


You're going to either need to upgrade to 5.3.0, or wait for 5.2.12 to be released. Some debugging code made it into the core, both branches now have the issue corrected. Please help with google bait as this was a bit annoying to track down before Scott gave me a hand :-)

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I was wondering what that was... ;-)
#1 Che on 2009-11-12 19:09 (Reply)


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Hi, I’m Paul Reinheimer, a developer working on the web.

I wrote a book titled Professional Web APIs with PHP back in 2006, and am currently working in Biomedical Informatics for a major public health company.

I’m working on a project to help developers called WonderProxy which has proxies all over the world. Working on GeoIP development? Now you can finally test properly! We've also released Global Ping Statistics for expected ping times between cities, as well as a Load Testing Tool to measure your site's ability to handle load. Our most recent site checking tool is Where's it Up? which checks your sites availability globally, returning HTTP, DNS, and Traceroute details

My hobbies are cycling, photography, travel, and engaging Allison Moore in intelligent discourse. I frequently write about PHP and other related technologies.

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