Hi We've picked up kernel-3.10.0-693.21.1.el7 errata released last week, however there is a problem building kernel modules, eg beegfs fails to build: make[1]: Entering directory `/usr/src/kernels/3.10.0-693.21.1.el7.x86_64' arch/x86/Makefile:166: *** CONFIG_RETPOLINE=y, but not supported by the compiler. Toolchain update recommended.. Stop. [root@term12 build]# yum list gcc Installed Packages gcc.x86_64 4.8.5-16.el7_4.1 @sl-fastbugs My reading of https://access.redhat.com/errata/RHBA-2018:0408 suggests that gcc-4.8.5-16.el7_4.2 is required for support for retpolines in kernel-3.10.0-693.21.1.el7. Is this on the roadmap? Cheers Toby -- Toby Darling, Scientific Computing (2N249) MRC Laboratory of Molecular Biology Francis Crick Avenue Cambridge Biomedical Campus Cambridge CB2 0QH Phone 01223 267070