[Bug 229177] fpudna: fpcurthread == curthread

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229177

            Bug ID: 229177
           Summary: fpudna: fpcurthread == curthread
           Product: Base System
           Version: 11.1-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: richardt at maths.tcd.ie

FreeBSD bloch.maths.tcd.ie 11.2-PRERELEASE FreeBSD 11.2-PRERELEASE #14
r334205:335129: Thu Jun 14 14:48:30 IST 2018    
richardt at temp2.maths.tcd.ie:/usr/obj/usr/src/sys/GENERIC  amd64

Hardware:
CPU: Intel(R) Core(TM)2 Quad CPU    Q9650  @ 3.00GHz (2992.56-MHz K8-class CPU)
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs

dmesg | grep fpudna | sort -u
fpudna: fpcurthread == curthread

New messages with 11.2-PRERELEASE. System appears stable as far as I can see
but the messages probably should not be there.

I have the same kernel running on a virtual machine (where the actual hardware
is CPU: AMD Opteron(tm) Processor 6166 HE (1800.07-MHz K8-class CPU)) and I
don't see the same messages.

>From /var/log/messages:

Jun 19 00:15:43 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 00:29:39 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 00:44:03 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 02:19:07 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 03:51:18 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 04:10:56 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 04:44:45 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 05:00:09 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 05:14:01 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 05:47:47 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 05:57:54 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 06:35:01 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 07:10:07 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 07:10:23 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 10:02:57 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 11:26:18 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 13:49:14 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 15:33:44 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 15:59:39 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 16:10:14 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 17:22:31 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 17:22:35 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 18:41:42 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 18:54:02 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 20:29:45 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 21:24:25 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 21:34:12 bloch kernel: fpudna: fpcurthread == curthread
Jun 19 22:39:51 bloch kernel: fpudna: fpcurthread == curthread

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