Full_Name: Andrew Findlay
OS: Linux: OpenSuSE 13.2
Submission from: (NULL) (2001:8b0:8d0:f7e1:61a6:169e:b4ba:9954)
Some client programs (such as Apache Directory Studio) request alias
dereferencing by default. This puts slapd with mdb into a spin where it consumes
100% of a CPU. Other threads continue to work and new connections are accepted.
Timeouts do not terminate the spin. Disconnecting the client does not terminate
Already fixed in RE24.
To reproduce: start slapd and issue a search of the form:
ldapsearch -a search -x -b dc=example,dc=org objectclass=person
I have placed a tarball on the FTP server containing:
sample data in LDIF
gdb output showing thread trace after breaking in
script of client commands
The build options were:
./configure --prefix=/meme/andrew/test/openldap-2.4.40 \
For those that need it, the workaround with Apache Directory Studio is to
disable alias dereferencing in the Browser Options tab for the connection.
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/