Hi, I build the cluster-1.00.00 againt kernel-2.6.12.2, but failed, could you help to explain what's wrong happen? make[2]: Leaving directory `/home/share/cluster-1.00.00/ccs/lib' cd ccs_test && make install make[2]: Entering directory `/home/share/cluster-1.00.00/ccs/ccs_test' install -d /home/share/cluster-1.00.00/build/sbin install ccs_test /home/share/cluster-1.00.00/build/sbin make[2]: Leaving directory `/home/share/cluster-1.00.00/ccs/ccs_test' cd ccs_tool && make install make[2]: Entering directory `/home/share/cluster-1.00.00/ccs/ccs_tool' gcc -Wall -I. -I../config -I../include -I../lib -I/home/share/cluster-1.00.00/build/incdir -Wall -O2 -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE `xml2-config --cflags` -DCCS_RELEASE_NAME=\"1.00.00\" -I. -I../config -I../include -I../lib -I/home/share/cluster-1.00.00/build/incdir -o ccs_tool ccs_tool.c update.c upgrade.c old_parser.c editconf.c -L../lib `xml2-config --libs` -L/home/share/cluster-1.00.00/build/lib -lccs -lmagma -lmagmamsg -ldl /home/share/cluster-1.00.00/build/lib/libmagma.so: undefined reference to `pthread_rwlock_rdlock' /home/share/cluster-1.00.00/build/lib/libmagma.so: undefined reference to `pthread_rwlock_unlock' /home/share/cluster-1.00.00/build/lib/libmagma.so: undefined reference to `pthread_rwlock_wrlock' collect2: ld returned 1 exit status make[2]: *** [ccs_tool] Error 1 make[2]: Leaving directory `/home/share/cluster-1.00.00/ccs/ccs_tool' make[1]: *** [install] Error 2 make[1]: Leaving directory `/home/share/cluster-1.00.00/ccs' make: *** [all] Error 2 [root@localhost cluster-1.00.00]# -- Linux-cluster@xxxxxxxxxx http://www.redhat.com/mailman/listinfo/linux-cluster