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Re: (ITS#3648) ldbm hangs during shutdown
Interesting. Probably the best way to fix this is to change this code to
use the slapd runqueue instead of spawning its own thread.
>Full_Name: Villy Kruse
>OS: Linux NPTL
>Submission from: (NULL) (220.127.116.11)
>The ldbm backend, or rather the cache sync daemon thread, may deadlock
>during shut down. The problem started when installing openldap on a
>RHAS3 with NPTL threads library. When this deadlock occurs only kill -9
>can terminate slapd. The problem seems not to occur on RH7.3 with
>The cause of the problem is that the sync daemon thread will access
>the connection_pool structure and its mutex after this structure has
>The included patch prevents this from happening -- most of the time.
>openldap version 2.2.24
>BerkeleyDB version 4.3.27 + 3 SleapyCat patches.
>RedHat glibc-2.2.5-44 with NPTL
>RedHat Linux kernel 2.4.21
>Tripple Intel Xeon CPU in an IBM server
-- Howard Chu
Chief Architect, Symas Corp. Director, Highland Sun
Symas: Premier OpenSource Development and Support