[LU-18760] lustre dkms build still fails sporadically with "modules.order: No such file or directory"

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.17.0
• Severity: 3
• Assignee: Shaun Tancheff
• Reporter: Shaun Tancheff

Description

The dkms build of lustre still fails sporadically fails:

...
  CC [M]  /var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build/lustre/llite/llite_foreign_symlink.o
  CC [M]  /var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build/lustre/llite/acl.o
  LD [M]  /var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build/lustre/llite/lustre.o
cat: /var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build//modules.order: No such file or directory
  MODPOST /var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build/Module.symvers
make[3]: Leaving directory '/usr/src/kernels/5.14.0-503.11.1.el9_5.x86_64'
make[2]: Leaving directory '/var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build'
...
make[4]: Entering directory '/var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build/libcfs/libcfs'
make[4]: *** No rule to make target 'libcfs.ko', needed by 'all-am'.  Stop.
make[4]: *** Waiting for unfinished jobs....
make[4]: Leaving directory '/var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build/libcfs/libcfs'
make[3]: *** [autoMakefile:743: all-recursive] Error 1
make[3]: Leaving directory '/var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build/libcfs/libcfs'
make[2]: *** [autoMakefile:519: all-recursive] Error 1
make[2]: Leaving directory '/var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build/libcfs'
make[1]: *** [autoMakefile:706: all-recursive] Error 1
make[1]: Leaving directory '/var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build'
make: *** [autoMakefile:568: all] Error 2

Comments

[Peter Jones]

Merged for 2.17

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/58261/
Subject: LU-18760 dkms: race on clobber and create of modules.order
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 3e0988996417963322a6fab487460de21a0d14b8

[Gerrit Updater]

"Shaun Tancheff <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/58261
Subject: LU-18760 dkms: race on clobber and create of modules.order
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: ba45f27592c5e94dd343b7215ad50617506effd3

[Shaun Tancheff]

It seems this comes down a make issue where:

   /var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build//modules.order

and

   /var/lib/dkms/lustre-client/2.15.5.2_cray_0_g8b93ae1/build/modules.order

are not treated as the same file triggering a race where the modules.order is temporarily removed before it is recreated.