I have updated my CVS tree at Jul 11 14:29 +0400, try compile and get this error: Compiling locking/shmem_sysv.c locking/shmem_sysv.c: In function `sysv_shm_open': locking/shmem_sysv.c:532: storage size of `su' isn't known make: *** [locking/shmem_sysv.o] Error 1 My system is i586, RedHat 6.0, kernel 2.2.9