GitHub pull request #2695 of commit 0b25cbb1a4431c0011af8cb15d9c6e9f2506949e, no merge conflicts.sha1origin/pr/2695/mergeghprbActualCommit0b25cbb1a4431c0011af8cb15d9c6e9f2506949eghprbActualCommitAuthorghprbActualCommitAuthorEmailghprbAuthorRepoGitUrlhttps://github.com/edwintorok/bcc.gitghprbTriggerAuthorghprbTriggerAuthorEmailghprbTriggerAuthorLoginyonghong-songghprbTriggerAuthorLoginMention@yonghong-songghprbPullId2695ghprbTargetBranchmasterghprbSourceBranchpatch-1GIT_BRANCHpatch-1ghprbPullAuthorEmailghprbPullAuthorLoginedwintorokghprbPullAuthorLoginMention@edwintorokghprbPullDescriptionGitHub pull request #2695 of commit 0b25cbb1a4431c0011af8cb15d9c6e9f2506949e, no merge conflicts.ghprbPullTitleSecure Boot: physical keypress to disable lockdownghprbPullLinkhttps://github.com/iovisor/bcc/pull/2695ghprbPullLongDescriptionUbuntu 19.10 with secure boot enabled doesn't allow the kernel lockdown to be lifted by echo, even from root:\r\n```\r\n# echo 1 > /proc/sys/kernel/sysrq\r\n# echo x > /proc/sysrq-trigger\r\n```\r\ndmesg says:\r\n```\r\nThis sysrq operation is disabled from userspace.\r\n```\r\n\r\nI pressed Alt-PrtScr-x and that worked:\r\n```\r\nsysrq: Disabling Secure Boot restrictions\r\nLifting lockdown\r\n```\r\n\r\nI can now run eBPF tools, such as execsnoop-bpfcc.ghprbCommentBody[buildbot, test this please]ghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113false<a title="Secure Boot: physical keypress to disable lockdown" href="https://github.com/iovisor/bcc/pull/2695">PR #2695</a>: Secure Boot: physical keyp...#23012513227460664bcc-pr #230230false2301855FAILURE1578610849031https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/230/git230https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=fc25/230/230https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=fc26/230/230https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=fc27/230/230https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=fc28/230/230https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=ubuntu1604/230/230https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=ubuntu1710/230/230https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=ubuntu1804/230/