[stunnel-users] CPU 100%

Murrey, Brian J. Brian.Murrey at trimedx.com
Wed Oct 17 19:57:25 CEST 2018

We are running stunnel 5.49 on FreeBSD 11.2 and we're running into a problem once in a while.

CPU pegs at 100% when we get an stunnel connection from one of our external devices.
This affects 100% of all cores and we can't even log in to console.

To mitigate this temporarily, we have a script running in the background to watch when stunnel begins to spike and restarts the daemon.

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.

Have any of you run in to this issue?


Brian Murrey
System Engineer II, IT Infrastructure


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