Hi all I've found strange problems with useradd program. Suddenly useradd stops to work and begins to eat memory till system crash. After some hours of experiments, I've found that I reached some strange limit in /etc/group file. I cannot add more than 85 users to one group. When adding 86'th user useradd stops to work, and due to strace, loops in open("/etc/passwd", O_RDONLY) = 4 fcntl64(4, F_GETFD) = 0 fcntl64(4, F_SETFD, FD_CLOEXEC) = 0 _llseek(4, 0, [0], SEEK_CUR) = 0 fstat64(4, {st_mode=S_IFREG|0644, st_size=6105, ...}) = 0 mmap2(NULL, 6105, PROT_READ, MAP_SHARED, 4, 0) = 0x4036f000 _llseek(4, 6105, [6105], SEEK_SET) = 0 fstat64(4, {st_mode=S_IFREG|0644, st_size=6105, ...}) = 0 munmap(0x4036f000, 6105) = 0 close(4) and so on. First question - what the limit of number of users in one group? And where I can read about this? Second question - why useradd works so terribly? Why it eats memory? It calls mmap2 and then munmap on the same address in a loop .... Third question - why kernel dont kill proccess which eats all of avaliable memory? On other systems swap pager must kill it! I'm using ----- cat /etc/SuSE-release SuSE Linux 9.0 (i586) VERSION = 9.0 ----- uname -a Linux Guantanamo 2.4.21-192-Guantanamo #1 Tue Apr 6 15:32:17 MSD 2004 ----- Thanx -- Best regards, Maxim Cherniavsky MTU-Intel, Internet Department mailto:maxim@mtu.ru