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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Recently Linus merged uprobe into kernel mainline and perf has supported user-space dynamic tracing now.<o:p></o:p></p><p class=MsoNormal>Is there any plan or motion on this with LTTng?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I did some research on buffer management of LTTng. And I’m trying to figure out a way to extract trace info from coredump.<o:p></o:p></p><p class=MsoNormal>Here is <a name="OLE_LINK4"></a><a name="OLE_LINK3">an </a><a name="OLE_LINK9"></a><a name="OLE_LINK10">immature idea </a>about the extractor:<o:p></o:p></p><p class=MsoListParagraph style='text-align:justify;text-justify:inter-ideograph;text-indent:-.25in;mso-list:l2 level1 lfo4'><![if !supportLists]><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]><i>Resolve the addresses of necessary symbols from coredump with binary format library/tool<o:p></o:p></i></p><p class=MsoListParagraph style='text-align:justify;text-justify:inter-ideograph;text-indent:-.25in;mso-list:l2 level1 lfo4'><![if !supportLists]><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]><i>Restructure the data structures<o:p></o:p></i></p><p class=MsoListParagraph style='text-align:justify;text-justify:inter-ideograph;text-indent:-.25in;mso-list:l2 level1 lfo4'><![if !supportLists]><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]><i>Following the data structures, dump the buffer data page by page<o:p></o:p></i></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Any good ideas or suggestions or concerns?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>BR<o:p></o:p></p><p class=MsoNormal>Zheng<o:p></o:p></p></div></body></html>