Has anyone noticed the same problem on SunOS? Doing a pathconf(_PC_PIPE_BUF) on a cdrom file system mounted with type hsfs crashes SunOS 4.1.3_U1, both on a sun4c and a sun4m machine. This is run as an ordinary user!! [Both these machines had the patch below applied, but it's probably an unrelated problem. Patch-ID# 101833-02 Synopsis: SunOS 4.1.3_U1: 4.x systems can't read symlinks in hsfs filesystems] For details: compile the following into a file named `crash'. #include <unistd.h> #include <errno.h> main(argc, argv) int argc; char **argv; { long val; if ((val = pathconf(argv[1], _PC_PIPE_BUF)) == -1) { printf("errno: %d\n", errno); perror("pathconf"); exit(1); } printf("PIPE_BUF = %d\n", val); } Now mount the cdrom: # mount -t hsfs -o ro /dev/sr0 /mnt As yourself: > crash /mnt Any fixes? --Patrick Rabau