[LU-9745] dkms-lustre does not install all modules on initial autoinstall

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.10.1, Lustre 2.11.0
• Affects Version/s: Lustre 2.10.0
• Severity: 3
• Assignee: Nathaniel Clark
• Reporter: Brian Murrell (Inactive)

Description

When I run the following command to install DKMS built Lustre:

# yum install kernel-devel-[0-9]*_lustre lustre lustre-dkms kmod-lustre-osd-ldiskfs zfs

the result after the installation is that only the lustre.ko (built from dkms-lustre) module is in /lib/modules/3.10.0-514.21.1.el7_lustre.x86_64/extra/:

# ls -l /lib/modules/3.10.0-514.21.1.el7_lustre.x86_64/extra/
total 4836
-rw-r--r-- 1 root root 1615824 Jul  7 14:01 lustre.ko
drwxr-xr-x 3 root root      16 Jul  7 13:55 lustre-osd-ldiskfs
-rw-r--r-- 1 root root  353632 Jul  7 13:55 splat.ko
-rw-r--r-- 1 root root  170024 Jul  7 13:55 spl.ko
-rw-r--r-- 1 root root   14016 Jul  7 13:57 zavl.ko
-rw-r--r-- 1 root root   75848 Jul  7 13:57 zcommon.ko
-rw-r--r-- 1 root root 2205152 Jul  7 13:57 zfs.ko
-rw-r--r-- 1 root root  132488 Jul  7 13:57 znvpair.ko
-rw-r--r-- 1 root root   34000 Jul  7 13:57 zpios.ko
-rw-r--r-- 1 root root  330920 Jul  7 13:57 zunicode.ko

Notice that all of the other supporting modules are missing.

After the above, if I then remove the module with dkms uninstall -m lustre/2.10.0_RC1 -k 3.10.0-514.21.1.el7_lustre.x86_64 and then run /etc/kernel/postinst.d/dkms 3.10.0-514.21.1.el7_lustre.x86_64 to emulate what happens during the yum installation above, /lib/modules/3.10.0-514.21.1.el7_lustre.x86_64/extra/ contains all of the necessary Lustre modules.

So there seems to be some subtle issue with the lustre-dkms RPM that only occurs during the initial installation.