GitHub pull request #2665 of commit 18d9305bdc1a3753aa25f456be29fa3514f9b294, no merge conflicts.sha1origin/pr/2665/mergeghprbActualCommit18d9305bdc1a3753aa25f456be29fa3514f9b294ghprbActualCommitAuthorjason-chenyixi-chengdughprbActualCommitAuthorEmail414477685@qq.comghprbAuthorRepoGitUrlhttps://github.com/jason-chenyixi-chengdu/bcc.gitghprbTriggerAuthorghprbTriggerAuthorEmailghprbTriggerAuthorLoginyonghong-songghprbTriggerAuthorLoginMention@yonghong-songghprbPullId2665ghprbTargetBranchmasterghprbSourceBranchmasterGIT_BRANCHmasterghprbPullAuthorEmailghprbPullAuthorLoginjason-chenyixi-chengdughprbPullAuthorLoginMention@jason-chenyixi-chengdughprbPullDescriptionGitHub pull request #2665 of commit 18d9305bdc1a3753aa25f456be29fa3514f9b294, no merge conflicts.ghprbPullTitleChanges to fix #2648ghprbPullLinkhttps://github.com/iovisor/bcc/pull/2665ghprbPullLongDescriptionHi, \r\nThis changes is for fix issue #2648 . Please help to review if it OK.\r\nMain changes are https://github.com/iovisor/bcc/pull/2665/commits/b93e4a3fc128fd58f57fa035b987a1fd2320b516 and https://github.com/iovisor/bcc/pull/2665/commits/e6b95721ba05616c9d69c014ffe84910c0ec27df. Others are some testing in my forked repo.\r\nThanks!ghprbCommentBodynullghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113false<a title="Changes to fix #2648" href="https://github.com/iovisor/bcc/pull/2665">PR #2665</a>: Changes to fix #2648#21710886447460664bcc-pr #217217false2171758FAILURE1578278963422https://buildbot.iovisor.org/jenkins/user/sumanthk/my-views/view/all/job/bcc-pr/217/git217https://buildbot.iovisor.org/jenkins/user/sumanthk/my-views/view/all/job/bcc-pr/label=fc25/217/217https://buildbot.iovisor.org/jenkins/user/sumanthk/my-views/view/all/job/bcc-pr/label=fc26/217/217https://buildbot.iovisor.org/jenkins/user/sumanthk/my-views/view/all/job/bcc-pr/label=fc27/217/217https://buildbot.iovisor.org/jenkins/user/sumanthk/my-views/view/all/job/bcc-pr/label=fc28/217/217https://buildbot.iovisor.org/jenkins/user/sumanthk/my-views/view/all/job/bcc-pr/label=ubuntu1604/217/217https://buildbot.iovisor.org/jenkins/user/sumanthk/my-views/view/all/job/bcc-pr/label=ubuntu1710/217/217https://buildbot.iovisor.org/jenkins/user/sumanthk/my-views/view/all/job/bcc-pr/label=ubuntu1804/217/