RELENG_7 if_nve panic

[Dmitry Sivachenko]

Hello!

I recompiled recent RELENG_7 and I get the following panic after
trying to kldload if_nve (interesting stack frames are 12, 13, 14 I guess).
Previous version of RELENG_7 (compiled in the middle of December)
worked fine.  Last few days I was trying to re-cvsup and always get the
same panic.  I get FreeBSD sources via cvsup (cvsup5.freebsd.org).

Any suggestions?

Thanks in advance!


nve0: <NVIDIA nForce 430 MCP13 Networking Adapter> port 0xc800-0xc807 mem 0xfe02b000-0xfe02bfff irq 22 at device 20.0 on pci0
nve0: Ethernet address 00:18:f3:f4:73:1c
miibus0: <MII bus> on nve0
e1000phy0: <Marvell 88E1116 Gigabit PHY> PHY 1 on miibus0


Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0x0
fault code		= supervisor read data, page not present
instruction pointer	= 0x8:0xffffffff803259cd
stack pointer	        = 0x10:0xffffff80210ed3e0
frame pointer	        = 0x10:0xffffff80210ed3f0
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		= 845 (kldload)
panic: from debugger
cpuid = 0
KDB: stack backtrace:
Uptime: 33s


(kgdb) bt
#0  doadump () at pcpu.h:195
#1  0xffffffff8028b1d8 in boot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:418
#2  0xffffffff8028b63c in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:574
#3  0xffffffff80183567 in db_panic (addr=Variable "addr" is not available.
) at /usr/src/sys/ddb/db_command.c:446
#4  0xffffffff80183bcf in db_command (last_cmdp=0xffffffff806414e8, 
    cmd_table=0x0, dopager=1) at /usr/src/sys/ddb/db_command.c:413
#5  0xffffffff80183de0 in db_command_loop ()
    at /usr/src/sys/ddb/db_command.c:466
#6  0xffffffff801859c9 in db_trap (type=Variable "type" is not available.
) at /usr/src/sys/ddb/db_main.c:228
#7  0xffffffff802bb235 in kdb_trap (type=12, code=0, tf=0xffffff80210ed330)
    at /usr/src/sys/kern/subr_kdb.c:524
#8  0xffffffff8044a3f0 in trap_fatal (frame=0xffffff80210ed330, eva=Variable "eva" is not available.
)
    at /usr/src/sys/amd64/amd64/trap.c:772
9  0xffffffff8044a7c4 in trap_pfault (frame=0xffffff80210ed330, usermode=0)
    at /usr/src/sys/amd64/amd64/trap.c:693
#10 0xffffffff8044b0da in trap (frame=0xffffff80210ed330)
    at /usr/src/sys/amd64/amd64/trap.c:464
#11 0xffffffff804335fe in calltrap ()
    at /usr/src/sys/amd64/amd64/exception.S:218
#12 0xffffffff803259cd in strcmp (s1=0x0, s2=0xffffffff80496f30 "msk")
    at /usr/src/sys/libkern/strcmp.c:45
#13 0xffffffff801caa3d in e1000phy_attach (dev=0xffffff0001532900)
    at /usr/src/sys/dev/mii/e1000phy.c:153
#14 0xffffffff802b54e9 in device_attach (dev=0xffffff0001532900)
    at device_if.h:178
#15 0xffffffff802b6bca in bus_generic_attach (dev=Variable "dev" is not available.
)
    at /usr/src/sys/kern/subr_bus.c:2923
#16 0xffffffff801ce1ee in miibus_attach (dev=0xffffff00016a6900)
    at /usr/src/sys/dev/mii/mii.c:186
#17 0xffffffff802b54e9 in device_attach (dev=0xffffff00016a6900)
    at device_if.h:178
#18 0xffffffff802b6bca in bus_generic_attach (dev=Variable "dev" is not available.
)
    at /usr/src/sys/kern/subr_bus.c:2923