Re: proliferating CFURLCache worker threads
Re: proliferating CFURLCache worker threads
- Subject: Re: proliferating CFURLCache worker threads
- From: "Quinn \"The Eskimo!\"" <email@hidden>
- Date: Tue, 22 May 2012 08:37:52 +0100
On 22 May 2012, at 04:34, Martin Wierschin wrote:
> Does anyone know anything about "com.apple.CFURLCACHE_work_queue" and how many of these queues/threads should be running at once?
I suspect that this is a bug. CFURLCache is an internal CF object that backs NSURLCache. Each CFURLCache has a GCD serial queue to wrangle cache tasks. From what I can tell this queue is deadlocking against itself. That is, you're running on the queue processing cache tasks (frames 7..8) and one of those tasks causes a CFRelease of the CFURLCache itself (frame 6) and that's the last release of the queue so it's deallocated (frame 5) and that does a dispatch_sync against the queue.
Regardless, please file a bug report about this and then post the bug number here.
Share and Enjoy
--
Quinn "The Eskimo!" <http://www.apple.com/developer/>
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
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