fatal kernel trap:

   exception       = 0x300 (data storage interrupt)
   virtual address = 0xdeadc0dedeadc0d8
   dsisr           = 0x40000000
   srr0            = 0xc0000000034f9ac0 (0xec9ac0)
   srr1            = 0x9000000000001033
   current msr     = 0x9000000000001033
   lr              = 0xc000000002f8c9b8 (0x95c9b8)
   frame           = 0xc0080000dafd9ad0
   curthread       = 0xc0080000b05f9700
          pid = 29046, comm = sh

panic: data storage interrupt trap
cpuid = 15
time = 1777058764
KDB: stack backtrace:
0xc0080000dafd9750: at vpanic+0x1ec
0xc0080000dafd9800: at panic+0x40
0xc0080000dafd9830: at trap+0xb08
0xc0080000dafd98e0: at trap+0x12c
0xc0080000dafd9a10: at powerpc_interrupt+0x1cc
0xc0080000dafd9aa0: kernel DSI read trap @ 0xdeadc0dedeadc0d8 by strlen+0x20: srr1=0x9000000000001033
            r1=0xc0080000dafd9d50 cr=0x22000000 xer=0 ctr=0xc000000002f8dac0 r2=0xc0000000040a0000 sr=0x40000000 frame=0xc0080000dafd9ad0
saved LR(0xc) is invalid.KDB: enter: panic
[ thread pid 29046 tid 101525 ]
Stopped at      kdb_enter+0x70: ori     r0, r0, 0x0
db> kldstat
Id Refs Address            Size     Name
 1   17 0xc000000002730100 1df3726  kernel
 2    1 0xc008000163000000 25000    fdescfs.ko
 3    1 0xc008000163025000 616000   zfs.ko
 4    1 0xc00800016363b000 23000    icee.ko
 5    1 0xc00800016365e000 2a000    nullfs.ko
db> show frame 0xc0080000dafd9ad0
trap frame 0xc0080000dafd9ad0
  r0:   0 (0)
  r1:   0xc0080000dafd9d50 (-4609434214939648688)
  r2:   0xc0000000040a0000 (-4611686018359623680)
  r3:   0xdeadc0dedeadc0de (-2401050962867404578)
  r4:   0xdeadc0dedeadc0d8 (-2401050962867404584)
  r5:   0xfefefefefefefeff (-72340172838076673)
  r6:   0xffffffff80808080 (-2139062144)
  r7:   0 (0)
  r8:   0 (0)
  r9:   0 (0)
  r10:  0 (0)
  r11:  0 (0)
  r12:  0xc000000003ed2051 (-4611686018361515951)
  r13:  0xc0080000b05f9700 (-4609434215654648064)
  r14:  0 (0)
  r15:  0x1 (1)
  r16:  0xc0080000dafda018 (-4609434214939647976)
  r17:  0 (0)
  r18:  0 (0)
  r19:  0xc000000003ca08fa (-4611686018363815686)
  r20:  0 (0)
  r21:  0xdeadc0dedeadc0de (-2401050962867404578)
  r22:  0xc000000003ed2052 (-4611686018361515950)
  r23:  0x5 (5)
  r24:  0xc000000003ed2053 (-4611686018361515949)
  r25:  0x20 (32)
  r26:  0 (0)
  r27:  0 (0)
  r28:  0x73 (115)
  r29:  0xc000000002f8dac0 (-4611686018377524544)
  r30:  0xc0080000dafd9ef8 (-4609434214939648264)
  r31:  0xc0080000dafd9d50 (-4609434214939648688)
  lr:   0xc000000002f8c9b8
  cr:   0x22000000
  xer:  0
  ctr:  0xc000000002f8dac0 (-4611686018377524544)
  srr0: 0xc0000000034f9ac0
  srr1: 0x9000000000001033
  exc:  0x300
  dar:  0xdeadc0dedeadc0d8
  dsisr:        0x40000000
db> x/i 0xc000000002f8c9b8
kvprintf+0xe48: ori     r0, r0, 0x0