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Re: RE_23 hangs in test039 (back-hdb)
Pierangelo Masarati wrote:
I ran test039 repeatedly for a couple of hours with no hangs on my
dual-core x86_64 Linux system. I'll try looping the other tests as well.
Pierangelo Masarati wrote:Howard, many thanks for spotting this issue, it was really becoming a
I'm experimenting with a fix now. The problem may be that the same conn
can be fetched by ldap_back_getconn() multiple times while a bind is in
progress (since in the initial state, both the incoming session and the
conn handle are anonymous).
nightmare. I've ported your fix to back-meta and added some bind testing
to concurrency testers (test007, test035 and test039). They seem to run
fine, but I seldom see any hang, so I really need to repeat the tests a
lot of times. If anyone who is often seeing hangs could step in and
stress HEAD a bit... (tests035 and test039). If it works, we can likely
close ITS#4246, 4247 and 3832.
Apart from fixing few small issues in the tester programs, I've repeatedly
run test036 & test039 on a few different architectures, including dual
CPUs, without any of the relevant issues (neither hangs nor loops). I
wouldn't consider my tests exaustive though, just my own 2c.
-- Howard Chu
Chief Architect, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc
OpenLDAP Core Team http://www.openldap.org/project/