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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Also a good idea. That would be found in the log ASAP certainly with a high debug level. Might fill the filesystem for the log if that is so </span><span style='font-family:Wingdings;color:#1F497D'>J</span><span style='color:#1F497D'> Does FreeBSD support kill -9 (or is it 11?) that forces a core dump? If so, when you kill it and leave a core file, you can use the debugger on that core file and see what it is doing. Look at the stack trace. You may need several to catch the problem. If it is simply in a read() type state then the other machine is streaming you. If it is loop around you should see it in a different place in each core file (the odds of hitting the same line of code when kill it every time are not good). I do not know what debuggers you have (gdb?) but that is another trick.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Eric<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> stunnel-users [mailto:stunnel-users-bounces@stunnel.org] <b>On Behalf Of </b>Vincent Deschenes<br><b>Sent:</b> Wednesday, October 17, 2018 11:05 AM<br><b>To:</b> Murrey, Brian J. <Brian.Murrey@trimedx.com>; stunnel-users@stunnel.org<br><b>Subject:</b> Re: [stunnel-users] CPU 100%<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-CA>Just a silly idea, but is it possible you have a re-entrant configuration for one service, one that connect back to itself creating a loop?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-CA style='font-family:"Courier New"'>Vincent Deschenes Ing. PMP<o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> stunnel-users <<a href="mailto:stunnel-users-bounces@stunnel.org">stunnel-users-bounces@stunnel.org</a>> <b>On Behalf Of </b>Murrey, Brian J.<br><b>Sent:</b> Wednesday, 17 October 2018 1:57 PM<br><b>To:</b> <a href="mailto:stunnel-users@stunnel.org">stunnel-users@stunnel.org</a><br><b>Subject:</b> [stunnel-users] CPU 100%<o:p></o:p></p></div></div><p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p><p class=MsoNormal>We are running stunnel 5.49 on FreeBSD 11.2 and we’re running into a problem once in a while. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>CPU pegs at 100% when we get an stunnel connection from one of our external devices. <o:p></o:p></p><p class=MsoNormal>This affects 100% of all cores and we can’t even log in to console.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>To mitigate this temporarily, we have a script running in the background to watch when stunnel begins to spike and restarts the daemon.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>It doesn’t happen 100% of the time, and so far I have been unable to distinguish what makes the connection do this to the CPU. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Have any of you run in to this issue? <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sincerely, <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Brian Murrey<br>System Engineer II, IT Infrastructure<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div class=MsoNormal align=center style='text-align:center'><hr size=2 width="100%" align=center></div><p><b><span style='font-size:10.0pt;color:#CCCCCC'>NOTICE:</span></b><span style='font-size:10.0pt;color:#CCCCCC'> This message may contain privileged and confidential information and/or protected health information intended solely for the use of the named recipient and may be privileged or otherwise protected by law. 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