Our product includes a linux module. In order to build with lp1787898 I had to modify linux-headers-4.15.0-34-generic (exportroot tree) to copy (older) s390x built tools in place of the incorrect x86 versions in linux-headers-4.15.0-34-generic_4.15.0-34.37~lp1787898_s390x.deb:
scripts/sign-file scripts/mod/mk_elfconfig scripts/mod/modpost scripts/basic/bin2c scripts/basic/fixdep With this in place, using the linux-modules* and the rest of lp1787898, Open for Business communication is successful. Specifically all OfB tests ended successfully, including deactivating a SSC-mode partition (loaded with an SSC supported appliance) from the Support Element console, and re-activating. Previously this left the partition in a failed state (OfB not seen by SE). Here it works as designed. Please fix linux- headers-4.15.0-34-generic_4.15.0-34.37~lp1787898_s390x.deb. Would appreciate a repost here, but this fix must be done for the kernel release. Thank you ! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1787898 Title: [18.10 FEAT] Add kernel config option "CONFIG_SCLP_OFB" Status in Ubuntu on IBM z Systems: Fix Committed Status in linux package in Ubuntu: Fix Committed Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Bug description: SRU Justification Impact: To boot an IBM Secure Service Container Appliance in an s390 LPAR. we need to be able to send the Open for Business (OFB) message to signal that the appliance is up and running. Fix: Set CONFIG_SCLP_OFB=y. Regression Potential: The option enables only a few pieces of architecture-specific code, so the potential impact is limited. --- For successfully booting an IBM Secure Service Container Appliance in an s390 LPAR, we need to be able to send the OFB (Open for Business) message to the Support Element to signal when the Appliance is fully up and running. Basic support for OFB was added to the kernel with the following commit https://github.com/projectacrn/acrn-kernel/commit/c6f70d3b8a32fdec60d3f78cb59423f056f16688 The kernel config option CONFIG_SCLP_OFB need to be set.... This update is mandatory for 18.04 , but need to be requested first for 18.10 $ git grep SCLP_OFB debian.master/config/annotations:CONFIG_SCLP_OFB policy<{'s390x': 'n'}> debian.master/config/config.common.ubuntu:# CONFIG_SCLP_OFB is not set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1787898/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
