panic with ATAmkIII and atacontrol on RELENG_5

[Emanuel Strobl]

Hello,

I'm running RELENG_5 with ATAmkIII and have the following panic:

Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0xdeadc116
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc058b0a7
stack pointer           = 0x10:0xcc6d3af4
frame pointer           = 0x10:0xcc6d3b30
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 419 (atacontrol)
[thread pid 419 tid 100052 ]
Stopped at      device_is_attached+0x7: cmpl    $0x1,0x38(%eax)
db> trace
Tracing pid 419 tid 100052 td 0xc158e320
device_is_attached(c07c1238,c4546101,c19f2800,3,c158e320) at 
device_is_attached+0x7
spec_ioctl(cc6d3b7c,1,c0768a46,30e,c07b7020) at spec_ioctl+0x98
vn_ioctl(c179f110,c4546101,c19f2800,c14dbd80,c158e320) at vn_ioctl+0xd1
ioctl(c158e320,cc6d3d14,c,431,3) at ioctl+0x159
syscall(2f,2f,2f,806157a,104) at syscall+0x137
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (54, FreeBSD ELF32, ioctl), eip = 0x8049e03, esp = 0xbfbfe9dc, ebp 
=0xbfbfeea4 ---

-Harry
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