GitHub pull request #3371 of commit 6c903d2d977e176eb93842c489f95d356b2b4468, no merge conflicts.sha1origin/pr/3371/mergeghprbActualCommit6c903d2d977e176eb93842c489f95d356b2b4468ghprbActualCommitAuthorghprbActualCommitAuthorEmailghprbAuthorRepoGitUrlhttps://github.com/yzhao1012/bcc.gitghprbTriggerAuthorghprbTriggerAuthorEmailghprbTriggerAuthorLoginyonghong-songghprbTriggerAuthorLoginMention@yonghong-songghprbPullId3371ghprbTargetBranchmasterghprbSourceBranchfree_symcache_apiGIT_BRANCHfree_symcache_apighprbPullAuthorEmailyzhao@pixielabs.aighprbPullAuthorLoginyzhao1012ghprbPullAuthorLoginMention@yzhao1012ghprbPullDescriptionGitHub pull request #3371 of commit 6c903d2d977e176eb93842c489f95d356b2b4468, no merge conflicts.ghprbPullTitleAdd BPFStackTable::free_symcache() to free the symbol cache for an PIDghprbPullLinkhttps://github.com/iovisor/bcc/pull/3371ghprbPullLongDescriptionThis is useful when BPFStackTable is used by a long running program to\r\nlimit the memory usage, by removing the cached symbols of an exited\r\nprocess.ghprbCommentBody[buildbot, test this please]ghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113false<a title="Add BPFStackTable::free_symcache() to free the symbol cache for an PID" href="https://github.com/iovisor/bcc/pull/3371">PR #3371</a>: Add BPFStackTable::free_sym...#9322553637460664bcc-pr #932932false9327465FAILURE1619289235628https://buildbot.iovisor.org/jenkins/user/tdecacqu/my-views/view/all/job/bcc-pr/932/git932https://buildbot.iovisor.org/jenkins/user/tdecacqu/my-views/view/all/job/bcc-pr/label=fc25/932/932https://buildbot.iovisor.org/jenkins/user/tdecacqu/my-views/view/all/job/bcc-pr/label=fc26/932/932https://buildbot.iovisor.org/jenkins/user/tdecacqu/my-views/view/all/job/bcc-pr/label=fc27/932/932https://buildbot.iovisor.org/jenkins/user/tdecacqu/my-views/view/all/job/bcc-pr/label=fc28/932/932https://buildbot.iovisor.org/jenkins/user/tdecacqu/my-views/view/all/job/bcc-pr/label=ubuntu1604/932/932https://buildbot.iovisor.org/jenkins/user/tdecacqu/my-views/view/all/job/bcc-pr/label=ubuntu1710/932/932https://buildbot.iovisor.org/jenkins/user/tdecacqu/my-views/view/all/job/bcc-pr/label=ubuntu1804/932/