Hello, While trying to build and install Lustre v 1.2 on an AMD Athlon X86 RHEL3 system (kernel version: 2.4.21-20.EL) I got the following error messages when I issue the "make install" command. The system kernel source is patched accordingly with the LustreHowTo document and than the Lustre is configured using the "./configure --with-linux=/usr/src/linux" command and no errors have encountered. Any ideas? dcache.c: In function `ll_ddelete'': dcache.c:61: `DCACHE_LUSTRE_INVALID'' undeclared (first use in this function) dcache.c: In function `ll_intent_drop_lock'': dcache.c:86: dereferencing pointer to incomplete type dcache.c:86: dereferencing pointer to incomplete type dcache.c:87: dereferencing pointer to incomplete type dcache.c:90: dereferencing pointer to incomplete type dcache.c:94: dereferencing pointer to incomplete type dcache.c: In function `ll_intent_release'': dcache.c:103: dereferencing pointer to incomplete type dcache.c:104: dereferencing pointer to incomplete type dcache.c:105: dereferencing pointer to incomplete type dcache.c:106: dereferencing pointer to incomplete type dcache.c: In function `ll_unhash_aliases'': dcache.c:141: `DCACHE_LUSTRE_INVALID'' undeclared (first use in this function) dcache.c: In function `ll_lookup_finish_locks'': dcache.c:183: dereferencing pointer to incomplete type dcache.c:187: dereferencing pointer to incomplete type dcache.c:191: dereferencing pointer to incomplete type dcache.c:191: `IT_LOOKUP'' undeclared (first use in this function) dcache.c:191: dereferencing pointer to incomplete type dcache.c:191: `IT_GETATTR'' undeclared (first use in this function) dcache.c: In function `ll_frob_intent'': dcache.c:213: dereferencing pointer to incomplete type dcache.c:213: `IT_GETXATTR'' undeclared (first use in this function) dcache.c:216: dereferencing pointer to incomplete type dcache.c: In function `ll_revalidate_it'': dcache.c:226: variable `lookup_it'' has initializer but incomplete type dcache.c:226: unknown field `it_op'' specified in initializer dcache.c:226: `IT_LOOKUP'' undeclared (first use in this function) dcache.c:226: warning: excess elements in struct initializer dcache.c:226: warning: (near initialization for `lookup_it'') dcache.c:226: storage size of `lookup_it'' isn''t known dcache.c:231: dereferencing pointer to incomplete type dcache.c:255: warning: passing arg 9 of `mdc_intent_lock'' from incompatible pointer type dcache.c:264: dereferencing pointer to incomplete type dcache.c:280: warning: implicit declaration of function `__d_rehash'' dcache.c:296: `DCACHE_LUSTRE_INVALID'' undeclared (first use in this function) dcache.c: At top level: dcache.c:404: unknown field `d_revalidate_it'' specified in initializer dcache.c:404: warning: initialization from incompatible pointer type make[4]: *** [dcache.o] Error 1 make[3]: *** [_modsubdir_llite] Error 2 make[2]: *** [_mod_/usr/src/lustre] Error 2 make[1]: *** [modules] Error 2 make: *** [install-recursive] Error 1 Thanks, Sarp -- Sarp Oral, PhD oralhs@ornl.gov (865) 241-0784 Oak Ridge National Lab Oak Ridge, Tennessee