[Bug 229391] page fault while in kernel mode

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229391

            Bug ID: 229391
           Summary: page fault while in kernel mode
           Product: Base System
           Version: 11.2-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: lbolmerg at posteo.de

While upgrading from 11.1-RELEASE to 11.2-RELEASE using freebsd-update(8)
system gets fatal trap 12
virtualbox-ose-5.2.8_1 and virtualbox-ose-kmod-5.2.8_1 are installed on the
system

Jun 28 15:39:29 ludger-thinkpad kernel: Fatal trap 12: page fault while in
kernel mode
Jun 28 15:39:29 ludger-thinkpad kernel: cpuid = 3; apic id = 05
Jun 28 15:39:29 ludger-thinkpad kernel: fault virtual address   = 0x134
Jun 28 15:39:29 ludger-thinkpad kernel: fault code              = supervisor
read data, page not present
Jun 28 15:39:29 ludger-thinkpad kernel: instruction pointer     =
0x20:0xffffffff80a98280
Jun 28 15:39:29 ludger-thinkpad kernel: stack pointer           =
0x28:0xffffffff82315bf0
Jun 28 15:39:29 ludger-thinkpad kernel: frame pointer           =
0x28:0xffffffff82315c20
Jun 28 15:39:29 ludger-thinkpad kernel: code segment            = base 0x0,
limit 0xfffff, type 0x1b
Jun 28 15:39:29 ludger-thinkpad kernel: = DPL 0, pres 1, long 1, def32 0, gran
1
Jun 28 15:39:29 ludger-thinkpad kernel: processor eflags        = interrupt
enabled, resume, IOPL = 0
Jun 28 15:39:29 ludger-thinkpad kernel: current process         = 0 (swapper)
Jun 28 15:39:29 ludger-thinkpad kernel: trap number             = 12
Jun 28 15:39:29 ludger-thinkpad kernel: panic: page fault
Jun 28 15:39:29 ludger-thinkpad kernel: cpuid = 3
Jun 28 15:39:29 ludger-thinkpad kernel: KDB: stack backtrace:
Jun 28 15:39:29 ludger-thinkpad kernel: #0 0xffffffff80b3d567 at
kdb_backtrace+0x67
Jun 28 15:39:29 ludger-thinkpad kernel: #1 0xffffffff80af6b07 at vpanic+0x177
Jun 28 15:39:29 ludger-thinkpad kernel: #2 0xffffffff80af6983 at panic+0x43
Jun 28 15:39:29 ludger-thinkpad kernel: #3 0xffffffff80f77faf at
trap_fatal+0x35f
Jun 28 15:39:29 ludger-thinkpad kernel: #4 0xffffffff80f78009 at
trap_pfault+0x49
Jun 28 15:39:29 ludger-thinkpad kernel: #5 0xffffffff80f777d7 at trap+0x2c7
Jun 28 15:39:29 ludger-thinkpad kernel: #6 0xffffffff80f5769c at calltrap+0x8
Jun 28 15:39:29 ludger-thinkpad kernel: #7 0xffffffff80a980d7 at
destroy_dev+0x37
Jun 28 15:39:29 ludger-thinkpad kernel: #8 0xffffffff82250127 at
VBoxDrvFreeBSDModuleEvent+0x117
Jun 28 15:39:29 ludger-thinkpad kernel: #9 0xffffffff80ad5f5f at
module_register_init+0xbf
Jun 28 15:39:29 ludger-thinkpad kernel: #10 0xffffffff80a92898 at
mi_startup+0x118
Jun 28 15:39:29 ludger-thinkpad kernel: #11 0xffffffff8031002c at btext+0x2c
Jun 28 15:39:29 ludger-thinkpad kernel: Uptime: 1s
Jun 28 15:39:29 ludger-thinkpad kernel: Automatic reboot in 15 seconds - press
a key on the console to abort
Jun 28 15:39:29 ludger-thinkpad kernel: Rebooting...

Workaround: 
change vboxnet_enable from "YES" to "NO" in /etc/rc.conf
comment #vboxdrv_load="YES" in /boot/loader.conf

Maybe a hint should be given in release notes

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