[Bug 220923] [boot] [panic] 11.1-RC3 Kernel panic during boot

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220923

            Bug ID: 220923
           Summary: [boot] [panic] 11.1-RC3 Kernel panic during boot
           Product: Base System
           Version: 11.0-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: zlei.huang at gmail.com

Created attachment 184595
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=184595&action=edit
Full crash log

I upgraded my test vm from 11.1-RC2 to 11.1-RC3, and the system crashs during
system boot.

Environment:
rMBP, OS X 10.9.5, VMware Fusion, 2 process core, 512MB memeory, 2G virtual
hard disk for system install and two virtual hard disks for data, bridged
VMXNET3 nic

System is installed with ZFS root. The /boot/loader.conf is as following,

kern.peom.label.disk_ident.enable="0"
kern.geom.label.gptid.enable="0"
vfs.zfs.min_auto_ashift=12
zfs_load="YES"

hw.pci.honor_msi_blacklist="0"
hw.vmx.txnqueue="4"
hw.vmx.rxnqueue="4"

Crash log:
kernel trap 12 with interrupts disabled


Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 02
fault virtual address   = 0x18
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff808eac3a
stack pointer           = 0x28:0xfffffe001d3f2000
frame pointer           = 0x28:0xfffffe001d3f2050
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = resume, IOPL = 0
current process         = 4 (doneq0)
trap number             = 12
panic: page fault
cpuid = 1
KDB: stack backtrace:
#0 0xffffffff80aada97 at kdb_backtrace+0x67
#1 0xffffffff80a6bb76 at vpanic+0x186
#2 0xffffffff80a6b9e3 at panic+0x43
#3 0xffffffff80edf832 at trap_fatal+0x322
#4 0xffffffff80edf889 at trap_pfault+0x49
#5 0xffffffff80edf0c6 at trap+0x286
#6 0xffffffff80ec3641 at calltrap+0x8
#7 0xffffffff808f26d8 at vt_flush+0x398
#8 0xffffffff80ac09cf at termcn_cnputc+0xff
#9 0xffffffff80a100ed at cnputc+0x7d
#10 0xffffffff80a103f8 at cnputs+0xb8
#11 0xffffffff80ab36ad at putchar+0x14d
#12 0xffffffff80ab323d at kvprintf+0x103d
#13 0xffffffff80ab3ea7 at vprintf+0x87
#14 0xffffffff80ab3e13 at printf+0x43
#15 0xffffffff80307c52 at xpt_announce_periph+0x62
#16 0xffffffff8032e089 at cddone+0x249
#17 0xffffffff8030dbe7 at xpt_done_process+0x677

Full crash log is attached.

Anyone has a clue about this panic?

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