I have observed the same kind of problem on a Dell Optiplex 990. I tried an upgrade to 6.4 via bsd.rd and the system boots the kernel and then reboots a few seconds later. Booting the bsd.rd or bsd.mp kernels provides the same result. I made sure that HT was turned off in the (most recent) BIOS, and I paved the box and reinstalled 6.3 via CD without incident. I tried an upgrade to 6.4 and got the same results.
The only odd thing I can think of with this system is the installation is on the second hard drive. The first hard drive is disabled in the BIOS. dmesg (from a fresh 6.3 install) is attached. Thanks, On Fri, 19 Oct 2018 at 16:42, Tracy Bales <tracy.w7...@gmail.com> wrote: > > I have an AMD FX-8300 CPU. > > I can boot and finish the OpenBSD 6.4 AMD64 bsd.rd installation dated > October 11, 2018 with no problems. However, on reboot the machine with the > bsd.mp image gets stuck in a reboot loop as soon as the first line of the > bsd image is displayed. I have the same result with bsd.sp as well. > > On the same machine I can boot and finish the OpenBSD 6.4 i386 installation > dated October 11,2018 with no problems. However, on reboot the machine > gives me the following error: > > kernel: protection fault trap, code=0 > Stopped at _kernel_lock+0x45: pushfl > ddb{0}> trace > _kernel_lock(d0adf750,2af) at _kernel_lock+0x45 > proc_trampoline_mp(fe7000,fdb000,0,d020053a,0) at proc_trampoline_mp+0x7d > ddb{0}> > > > Any suggestions would be appreciated! Thanks... -- Larry Gadallah, lgadallah AT gmail DOT com PGP Sig: AE93 1785 6874 7111 48AD 63A6 2136 3651 981C F87B
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