Hello all, I have a problem now about return the segment size of shared memory from shmctl() func. First of step was to start apache_1.3.24 on kernel-2.4.17/pb1000. However it could not be started because it might be currput segment size from shmctl() called in apache. So that I tried to test with shmctl() on (A)kernel-2.4.17/pb1000 and (B)kernel-2.4.9/x86 as the follows. (B) was just returned correct segment size, but (A)'s segment size was 0 (of cause memory on pb1000 was left). This code is -----------------------------------8<--------------------------------------- -----------------------------------8<--------------------------------------- HOST: kernel-2.4.9/RH-7.2 on x86.