Re: 2.6.35-rc3 deadlocks on semaphore operations

From: Manfred Spraul
Date: Fri Jun 25 2010 - 17:09:04 EST

On 06/24/2010 09:22 PM, Luca Tettamanti wrote:
Argh, "seems" was indeed appropriate. Manfred your patch does
alleviate the problem but something is still wrong. I noticed (I'm
developing an ajax heavy web app) that sometimes an apache worker
hangs; I can reproduce the problem with ab (apache benchmark) and a
high concurrency level (I'm testing with 100 and 10k requests, and I
get only 2-5 dropped requests). This does not happen with 2.4.34.
Any idea on how I can debug this further?

Are there still hung httpd processes?

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