Full_Name: Bill MacAllister Version: 2.3.41-1su2 OS: debian etch kernel 2.6.18-4-amd64 URL: http://www.stanford.edu/~whm/ldap-test1-bt.txt Submission from: (NULL) (171.64.19.165)
The slapd process will sometimes consume all of available CPU. We observed this when we upgraded our production servers from 2.3.35-2su2 to 2.3.41-1su2. The problem was bad enough that we downgraded the production servers to 2.3.35-2su2. We have been trying to provoke the problem in our test environment and have not been successful in making it happen on demand. Today, we noticed that one of our test servers went completely CPU bound. I took a backtrace. It is available at the URL below. The interesting thing about the problem is that although top shows a pinned CPU and a high load the server is still responsive and continues to answer LDAP searches. The test server that exhibits the problem is still CPU bound and has been for 2-3 hours now. We will leave this server in this state in case there is other information that we should harvest in resolving the problem.