GitHub pull request #2468 of commit 25eb1e36a8371e893350d284f0d5d5ab5165f14f, no merge conflicts.sha1origin/pr/2468/mergeghprbActualCommit25eb1e36a8371e893350d284f0d5d5ab5165f14fghprbActualCommitAuthorJiri OlsaghprbActualCommitAuthorEmailjolsa@kernel.orgghprbAuthorRepoGitUrlhttps://github.com/olsajiri/bcc.gitghprbTriggerAuthorghprbTriggerAuthorEmailghprbTriggerAuthorLoginyonghong-songghprbTriggerAuthorLoginMention@yonghong-songghprbPullId2468ghprbTargetBranchmasterghprbSourceBranchksym_moduleGIT_BRANCHksym_moduleghprbPullAuthorEmailghprbPullAuthorLoginolsajirighprbPullAuthorLoginMention@olsajirighprbPullDescriptionGitHub pull request #2468 of commit 25eb1e36a8371e893350d284f0d5d5ab5165f14f, no merge conflicts.ghprbPullTitleReport proper module on kernel backtraceghprbPullLinkhttps://github.com/iovisor/bcc/pull/2468ghprbPullLongDescriptionRaghavendra Rao reported that memleak does not display\r\nproper name of the related kernel module, but just the\r\n\"kernel\" string, like here for xfs module functions:\r\n\r\n 131072 bytes in 4 allocations from stack\r\n ..\r\n bvec_alloc+0x92 [kernel]\r\n bio_alloc_bioset+0x13f [kernel]\r\n xfs_add_to_ioend+0x2df [kernel]\r\n xfs_do_writepage+0x148 [kernel]\r\n write_cache_pages+0x171 [kernel]\r\n xfs_vm_writepages+0x59 [kernel]\r\n do_writepages+0x43 [kernel]\r\n ...\r\n\r\nThe kernel resolver code is parsing /proc/kallsyms, which\r\nalready has the module information in.\r\n\r\nThis patch is adding support to parse the module info\r\nfrom /proc/kallsyms and initialize the module with\r\nproper value.\r\n\r\nAbove memleak backtrace now looks like:\r\n\r\n 131072 bytes in 4 allocations from stack\r\n\r\n bvec_alloc+0x92 [kernel]\r\n bio_alloc_bioset+0x13f [kernel]\r\n xfs_add_to_ioend+0x2df [xfs]\r\n xfs_do_writepage+0x148 [xfs]\r\n write_cache_pages+0x171 [kernel]\r\n xfs_vm_writepages+0x59 [xfs]\r\n do_writepages+0x43 [kernel]\r\n ...\r\n\r\nReported-by: Raghavendra Rao <ragrao@redhat.com>\r\nSigned-off-by: Jiri Olsa <jolsa@kernel.org>ghprbCommentBodynullghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113false<a title="Report proper module on kernel backtrace" href="https://github.com/iovisor/bcc/pull/2468">PR #2468</a>: Report proper module on ker...#2812350497460664bcc-pr #2828false28252SUCCESS1563868784222https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/28/git28https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=fc25/28/28https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=fc26/28/28https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=fc27/28/28https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=fc28/28/28https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=ubuntu1604/28/28https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=ubuntu1710/28/28https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=ubuntu1804/28/