> On Aug 4, 2020, at 9:19 AM, Timo Rothenpieler <timo@xxxxxxxxxxxxxxxx> wrote: > > On 04.08.2020 15:12, Chuck Lever wrote: >>> On Aug 4, 2020, at 9:08 AM, Timo Rothenpieler <timo@xxxxxxxxxxxxxxxx> wrote: >>> >>> On 04.08.2020 14:49, Chuck Lever wrote: >>>> Timo, I tend to think this is not a configuration issue. >>>> Do you know of a known working kernel? >>> >>> This is a brand new system, it's never been running with any kernel older than 5.4, and downgrading it to 4.19 or something else while in operation is unfortunately not easily possible. For a client it would definitely not be out of the question, but the main nfs server I cannot easily downgrade. >>> >>> Also keep in mind that the dmesg spam happens on both server and client simultaneously. >> Let's start with the client only, since restarting it seems to clear the problem. >>> I'll see if I can borrow two of the nodes to turn into a temporary test system for this. >>> >>> The Kernel for this system is self-built and not any distribution kernel. >> Would it be easy to try a kernel earlier in the 5.4.y stable series? > > Yes, that should be very straight forward, since I can just use the same config. > Got any specific version in mind? Start with an early one, like 5.4.16. -- Chuck Lever