Useful info here, thanks rusk.
Jenkins 2.233 CVS plugin 2.19, jobs running for months/years
A new job that did CVS checkout failed with this error on checkout of one particular file each time.
"Terminated with fatal signal 11"
"Core dumped; preserving on server."
"CVS locks may need cleaning up."
Existing jobs that did same CVS update did not have a problem.
Cleanup of lock files required on cvs server each time.
WORKAROUND: (as described by Robert)
Manage Jenkins > Configure System >
CVS set Default Compression Level to None (it was 3 (Recommended))
CVS plugin version is 2.12 and Here is the last few lines of the error
Terminated with fatal signal 11
Core dumped; preserving /tmp/cvs-serv9124 on server.
CVS locks may need cleaning up.
ERROR: Cvs task failed
Thanks
BY