Hello, On 24/12/20(Thu) 12:35, [email protected] wrote: > >Synopsis: If network drops while running top over SSH, runaway process > >Category: minor, poor handling of failure mode > >Environment: > System : OpenBSD 6.7 > Details : OpenBSD 6.7 (GENERIC) #5: Wed Oct 28 00:25:20 MDT 2020 > > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC > > Architecture: OpenBSD.amd64 > Machine : amd64 > >Description: > If I SSH into any of various amd64 OpenBSD servers, virtual or > physical, > if m running a monitoring process like top, or multitail -f, on a remote > machine > over SSH and the network drops or client machine disconnects, the server > process > consumes nearly 100% of CPU and does not stop itself. I can log back in and > kill the process, but until I do I have a CPU being consumed. This affects > performance, possibly costing money on a virtual server. This behavior is > years old.
Did you try to reproduce this bug on -current? Is it still there? If it is, could you please ktrace(1) the program consuming 100% of CPU before killing it? Then add the kdump(1) output to this bug report so we have an idea of what it is doing and hopefully what needs to be fixed Thanks for your report
