[LU-16058] Generation and using of the config.cache in b2_15

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0, Lustre 2.15.2
• Environment: Rocky Linux 9, kernel 5.14.0-70.17.1.el9_0.x86_64, sysofed, Lustre 2.15.1_RC1 (based on b2_15)
• Severity: 1
• Assignee: Shaun Tancheff
• Reporter: Dominika Wanat

Description

We are maintaining a small CI/CD infrastructure based on GitlabCI to build different Lustre client packages for worker nodes. In the pipeline we are usually configuring Lustre build using checks caching via -C parameter: 

 ./configure --disable-tests --disable-server --enable-client --with-zfs=no --with-o2ib=yes --disable-gss --with-linux=/usr/src/kernels/${CLIENT_KERNEL_VER}.x86_64 -C

and using `config.cache` as build cache.  This solution speeds up the build process.  However, the latest branch based on the b2_15  causes the following errors when invoking `make rpms`:

 

config.status: creating lustre/utils/gss/Makefile
config.status: creating lustre/osp/Makefile
config.status: creating lustre/osp/autoMakefile
config.status: creating lustre/lod/Makefile
config.status: creating lustre/lod/autoMakefile
config.status: creating snmp/Makefile
config.status: creating snmp/autoconf/Makefile
config.status: creating config.h
config.status: executing depfiles commands
config.status: executing libtool commands
CC:            gcc
LD:            /usr/bin/ld -m elf_x86_64
CPPFLAGS:      -include /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/undef.h -include /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/config.h -I/tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/lnet/include/uapi -I/tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/lustre/include/uapi -I/tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/libcfs/include -I/tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/lnet/utils/ -I/tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/lustre/include 
CFLAGS:        -g -O2 -Werror -Wall -Werror
EXTRA_KCFLAGS: -include /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/undef.h -include /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/config.h  -g -I/tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/libcfs/include -I/tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/libcfs/include/libcfs -I/tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/lnet/include/uapi -I/tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/lnet/include -I/tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/lustre/include/uapi -I/tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/lustre/include -Wno-format-truncation -Wno-stringop-truncation -Wno-stringop-overflow
Type 'make' to build Lustre.
+ make -j2 -s
Making all in .
In file included from /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/lustre/include/lustre_compat.h:46,
                 from /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/libcfs/libcfs/libcfs_mem.c:37:
/tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/libcfs/include/libcfs/linux/linux-fs.h:66:18: error: redefinition of 'struct file_operations'
   66 | #define proc_ops file_operations
      |                  ^~~~~~~~~~~~~~~
include/linux/proc_fs.h:29:8: note: in expansion of macro 'proc_ops'
   29 | struct proc_ops {
      |        ^~~~~~~~
In file included from /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/libcfs/include/libcfs/linux/linux-misc.h:35,
                 from /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/libcfs/include/libcfs/libcfs.h:43,
                 from /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/libcfs/libcfs/libcfs_mem.c:36:
include/linux/fs.h:2060:8: note: originally defined here
 2060 | struct file_operations {
      |        ^~~~~~~~~~~~~~~
make[7]: *** [scripts/Makefile.build:271: /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/libcfs/libcfs/libcfs_mem.o] Error 1
make[6]: *** [scripts/Makefile.build:514: /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/libcfs/libcfs] Error 2
make[5]: *** [scripts/Makefile.build:514: /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1/libcfs] Error 2
make[5]: *** Waiting for unfinished jobs....
make[4]: *** [Makefile:1862: /tmp/rpmbuild-lustre--mshmt5CL/BUILD/lustre-2.15.1_RC1] Error 2
make[3]: *** [autoMakefile:1093: modules] Error 2
make[2]: *** [autoMakefile:625: all-recursive] Error 1
make[1]: *** [autoMakefile:509: all] Error 2
error: Bad exit status from /tmp/rpmbuild-lustre--mshmt5CL/TMP/rpm-tmp.Cqd8xu (%build)

RPM build errors:
    Bad exit status from /tmp/rpmbuild-lustre--mshmt5CL/TMP/rpm-tmp.Cqd8xu (%build)
make: *** [autoMakefile:1203: rpms] Error 1

The build without -C works properly.