On Thu, Sep 08, 2022 at 08:24:11AM -0500, Scott Cheloha wrote: > On Thu, Sep 08, 2022 at 05:52:43AM +0300, Pavel Korovin wrote: > > On 09/07, Scott Cheloha wrote: > > > Just to make sure that my changes to acpihpet(4) actually caused > > > the problem, I have a few more questions: > > > > > > 1. When did you change the OS type? > > > > 03 August, after that, there was a local snpashot built from sources > > fetched on 17 Aug 2022 22:12:57 +0300 which wasn't affected. > > > > > 2. What was the compilation date of the kernel where you first saw the > > > problem? > > > > Locally built snapshot from sources fetched on Wed, 31 Aug 2022 02:05:34 > > +0300. > > > > > 3. If you boot an unpatched kernel does the problem manifest in > > > exactly the same way? > > > > As I said, I mistakenly changed the OS type not to "FreeBSD Pre-11 > > versions (32-bit)", but to "FreeBSD 11 (32-bit)". > > The problem affects only VMs which have Guest OS Version set to "FreeBSD > > Pre-11 versions (32-bit)" on snapshots built after 31 Aug 2022. > > > > Sample outputs from the machine running older snapshot which is not > > affected: > > > > $ sysctl kern.version | head -n1 > > kern.version=OpenBSD 7.2-beta (GENERIC.MP) #1: Thu Aug 18 15:15:13 MSK > > 2022 > > > > $ sysctl | grep tsc > > kern.timecounter.hardware=tsc > > kern.timecounter.choice=i8254(0) acpihpet0(1000) tsc(2000) > > acpitimer0(1000) > > machdep.tscfreq=1500017850 > > machdep.invarianttsc=1 > > Please send a full bug report to b...@openbsd.org. > > Include full a dmesg for the affected machine. > > Something else with VMWare is involved here and I'm not enough of an > expert to say what. More eyes will be helpful. > > Your problem is *probably* caused by my changes, but there are too > many moving parts with all the different VMWare configurations for me > to narrow down what the issue is definitively.
I have committed the acpihpet(4) fix. Please send a full bug report to b...@openbsd.org so we can continue poking at this. I have some test code I'd like you to try out so we can get a better look at the TSC calibration process on your machine.
