module A and module B, module A export symbol func a, module B using func a.Both modules using GPL. #insmod ./mod1.ko#insmod ./mod2.ko #tail /var/log/kern.logAug 1 23:47:27 dell-desktop kernel: [ 7029.008527] mod2: no symbolversion for func1Aug 1 23:47:27 dell-desktop kernel: [ 7029.008534] mod2: Unknown symbol func1 But in /proc/kallsyms, we can find the func a's symbol. I test modules in 2.6.22 and 2.6.24, both can be right insmoded without errors. BTW: The 2.6.26 kernel is compiled by myself.CONFIG_MODULES=y# CONFIG_MODULE_FORCE_LOAD is not setCONFIG_MODULE_UNLOAD=y# CONFIG_MODULE_FORCE_UNLOAD is not setCONFIG_MODVERSIONS=yCONFIG_MODULE_SRCVERSION_ALL=yCONFIG_KMOD=y -- Best Regards :-)-------------------------------------------Wang Yao(王耀),wangyao@xxxxxxxxxxxxx ipconfigme@xxxxxxxxx wangyao01@baidu.comwangyao08@xxxxxxxxxxxxxxxxxxxxxxxxxx: http://cudev.cublog.cnIBM Club Harbin Institute Of TechnologyAddress:NO.92 West Da-Zhi Street,NanGang District,Harbin,Heilongjiang?韬{.n?????%??檩jw?)p??{.n???罐??'??q??????????v??m??赙zY蘖?锄+?@