Created attachment 197171 [details] Screenshot when updating from ALPHA3 to ALPHA4 I'm tracking head with VirtualBox VM. Every time new snapshot is released I update to same revision. So buildworld, buildkernel and installkernel always complete sucsessfully. But when rebooting system always crashes with 'Fatal trap 9: general protection fault while in kernel mode' message. And if I closed VM window and restart VM, new kernel start up without any problem. Attached PNG file is a screenshot when updating from ALPHA3 to ALPHA4. Conditions about VM and host are following: VM: CPU: x4 Memory: 8GB Disk: 100GB SATA Host: CPU: Intel Core i7 4770S Memory: 16GB Disk: 2TB SATA OS: 64bit Windows 10 Enterprise 1803 VirualBox: 5.2.18
Created attachment 197172 [details] Screenshot when updating from ALPHA4 to ALPHA5 Attached PNG file is screenshot when updating from ALPHA4 to ALPHA5. Backtrace is added according to advice of Mark Johnston(markj@freebsd.org).
Created attachment 197211 [details] Screenshot when updating from ALPHA5 to ALPHA6 Attached file is screenshot when updating from ALPHA5 to ALPHA6.
Created attachment 197321 [details] Screenshot when updating from ALPHA6 to ALPHA7 Attached PNG file is screenshot when updating from ALPHA6 to ALPHA7.
Looks like duplicate of PR/227784
(In reply to Yasuhiro KIMURA from comment #0) My amd64 FreeBSD is in a Virtual Box on macOS on a MacBookPro. I build FreeBSD from source and have been updating as 12 went through the ALPHA*'s and before. I do have virtualbox-ose-additions built and installed that I've been keeping up to date in the VM image, currently: # pkg info virtualbox-ose-additions virtualbox-ose-additions-5.2.18_1 Name : virtualbox-ose-additions Version : 5.2.18_1 Installed on : Sat Sep 15 13:50:41 2018 PDT Origin : emulators/virtualbox-ose-additions Architecture : FreeBSD:12:amd64 Prefix : /usr/local Categories : emulators kld Licenses : GPLv2 Maintainer : vbox@FreeBSD.org WWW : http://www.virtualbox.org/ Comment : VirtualBox additions for FreeBSD guests Options : DBUS : on DEBUG : off OPENGL : off X11 : on . . . (I'm not actively using X11 despite the option.) I've not had any problems with shutdown -r now after installs. This suggests needing to figure out what contributes to having the problem vs. not having it. I've no clue at this point. Sometimes I'm synchronized to a version between ALPHAs. All have behaved just fine for installing updates and rebooting.
(In reply to Mark Millard from comment #5) My context is strictly UFS based, no ZFS.
While updating from ALPHA7 to ALPHA8, reboot succeeded without crash. So this problem may be resolved. But just in case I would like to wait next update to check if crash doesn't happen before closing this problem report.
(In reply to Yasuhiro KIMURA from comment #7) While updating from ALPHA8 to ALPHA9 reboot succeeded without crash again. So I conclude the problem is fixed and close this bug report.