https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229167
--- Comment #23 from p...@twisted.org.uk ---
(In reply to Dexuan Cui from comment #21)
So, I rebuilt with CURRENT, and it booted fine on UFS. Then I rebooted it a
couple of times, and the third time it did this:
mlxen0: Ethernet address: 00:0d:3a:2f:f9:61
<4>mlx4_en: mlx4_core0: Port 1: Using 4 TX rings
mlxen0: link state changed to DOWN
<4>mlx4_en: mlx4_core0: Port 1: Using 4 RX rings
<4>mlx4_en: mlxen0: Using 4 TX rings
hn0: link state changed to DOWN
<4>mlx4_en: mlxen0: Using 4 RX rings
<4>mlx4_en: mlxen0: Initializing port
Fatal trap 12: page fault while in kernel mode
cpuid = 2; apic id = 02
fault virtual address = 0x1d8
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff80c6a3ea
stack pointer = 0x28:0xfffffe00004bb950
frame pointer = 0x28:0xfffffe00004bb960
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 0 (vmbusdev)
[ thread pid 0 tid 100105 ]
Stopped at vrefact+0xa: cmpl $0x4,ll+0x1b7(%r14)
db>
Hmmmm... thats the same (UFS based) machine being rebooted, no changes, so it
look unpredictable :-( Am going to try it again and also try with ZFS if I can,
but it does look like it shows up in CURRENT, just not every time.
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