I use the controller LSI 1068E (mpt). When disk array (mirror) is
degrading i get kernel panic. With the recovery disk array, I also get a
kernel panic

FreeBSD qweqwe 7.1-BETA2 FreeBSD 7.1-BETA2 #0: Sun Oct 12 20:59:28 UTC
2008 root@driscoll.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64

Fatal trap 12: page fault while in kernel mode
cpuid = 7; apic id = 07
fault virtual address = 0x28
fault code = supervisor read data, page not present
instruction pointer = 0x8:0xffffffff8018254d
stack pointer = 0x10:0xffffffffac2c0a30
frame pointer = 0x10:0xffffff00036a3400
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 = 23 (swi2: cambio)
trap number = 12
panic: page fault
cpuid = 7
Uptime: 2m27s
Physical memory: 8174 MB
Dumping 342 MB: 327 311 295 279 263 247 231 215 199 183 167 151 135 119
103 87 71 55 39 23 7

#0 doadump () at pcpu.h:195
195 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) backtrace
#0 doadump () at pcpu.h:195
#1 0x0000000000000004 in ?? ()
#2 0xffffffff804b4299 in boot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:418
#3 0xffffffff804b46a2 in panic (fmt=0x104
bounds>) at /usr/src/sys/kern/kern_shutdown.c:574
#4 0xffffffff80789123 in trap_fatal (frame=0xffffff0001255370,
eva=Variable "eva" is not available.
) at /usr/src/sys/amd64/amd64/trap.c:764
#5 0xffffffff807894f5 in trap_pfault (frame=0xffffffffac2c0980,
usermode=0) at /usr/src/sys/amd64/amd64/trap.c:680
#6 0xffffffff80789e38 in trap (frame=0xffffffffac2c0980) at
/usr/src/sys/amd64/amd64/trap.c:449
#7 0xffffffff8076f63e in calltrap () at
/usr/src/sys/amd64/amd64/exception.S:209
#8 0xffffffff8018254d in xpt_done (done_ccb=0xffffff00036a3400) at
/usr/src/sys/cam/cam_xpt.c:4833
#9 0xffffffff80186692 in xpt_scan_bus (periph=Variable "periph" is not
available.
) at /usr/src/sys/cam/cam_xpt.c:5395
#10 0xffffffff80184768 in camisr_runqueue (V_queue=Variable "V_queue" is
not available.
) at /usr/src/sys/cam/cam_xpt.c:7316
#11 0xffffffff80184af9 in camisr (dummy=Variable "dummy" is not available.
) at /usr/src/sys/cam/cam_xpt.c:7216
#12 0xffffffff804957f0 in ithread_loop (arg=0xffffff00011daba0) at
/usr/src/sys/kern/kern_intr.c:1088
#13 0xffffffff80492693 in fork_exit (callout=0xffffffff80495680
, arg=0xffffff00011daba0, frame=0xffffffffac2c0c80)
at /usr/src/sys/kern/kern_fork.c:804
#14 0xffffffff8076fa0e in fork_trampoline () at
/usr/src/sys/amd64/amd64/exception.S:455
#15 0x0000000000000000 in ?? ()
#16 0x0000000000000000 in ?? ()
#17 0x0000000000000001 in ?? ()
#18 0x0000000000000000 in ?? ()
#19 0x0000000000000000 in ?? ()
#20 0x0000000000000000 in ?? ()
#21 0x0000000000000000 in ?? ()
#22 0x0000000000000000 in ?? ()
#23 0x0000000000000000 in ?? ()
#24 0x0000000000000000 in ?? ()
#25 0x0000000000000000 in ?? ()
#26 0x0000000000000000 in ?? ()
#27 0x0000000000000000 in ?? ()
#28 0x0000000000000000 in ?? ()
#29 0x0000000000000000 in ?? ()
#30 0x0000000000000000 in ?? ()
#31 0x0000000000000000 in ?? ()
#32 0x0000000000000000 in ?? ()
#33 0x0000000000000000 in ?? ()
#34 0x0000000000000000 in ?? ()
#35 0x0000000000000000 in ?? ()
#36 0x0000000000000000 in ?? ()
#37 0x0000000000000000 in ?? ()
#38 0x0000000000000000 in ?? ()
#39 0x0000000000d41000 in ?? ()
#40 0xffffffff80abb540 in tdq_cpu ()
#41 0xffffffff80ac2940 in tdq_groups ()
#42 0xffffffff80ac25c0 in tdq_cpu ()
#43 0xffffff0001255370 in ?? ()
#44 0xffffffff80ab5dc0 in tdg_maxid ()
#45 0xffffffffac2c05f8 in ?? ()
#46 0xffffff0001255370 in ?? ()
#47 0xffffffff804d4e58 in sched_switch (td=0xffffffff80495680,
newtd=0x0, flags=Variable "flags" is not available.
) at /usr/src/sys/kern/sched_ule.c:1938
#48 0x0000000000000000 in ?? ()
#49 0x0000000000000000 in ?? ()
#50 0x0000000000000000 in ?? ()
---Type to continue, or q to quit---
#51 0x0000000000000000 in ?? ()
#52 0x0000000000000000 in ?? ()
#53 0x0000000000000000 in ?? ()
#54 0x0000000000000000 in ?? ()
#55 0x0000000000000000 in ?? ()
#56 0x0000000000000000 in ?? ()
#57 0x0000000000000000 in ?? ()
#58 0x0000000000000000 in ?? ()
#59 0x0000000000000000 in ?? ()
#60 0x0000000000000000 in ?? ()
#61 0x0000000000000000 in ?? ()
#62 0x0000000000000000 in ?? ()
#63 0x0000000000000000 in ?? ()
#64 0x0000000000000000 in ?? ()
#65 0x0000000000000000 in ?? ()
#66 0x0000000000000000 in ?? ()
#67 0x0000000000000000 in ?? ()
#68 0x0000000000000000 in ?? ()
#69 0x0000000000000000 in ?? ()
#70 0x0000000000000000 in ?? ()
#71 0x0000000000000000 in ?? ()
#72 0x0000000000000000 in ?? ()
#73 0x0000000000000000 in ?? ()
#74 0x0000000000000000 in ?? ()
#75 0x0000000000000000 in ?? ()
#76 0x0000000000000000 in ?? ()
#77 0x0000000000000000 in ?? ()
#78 0x0000000000000000 in ?? ()
#79 0x0000000000000000 in ?? ()
#80 0x0000000000000000 in ?? ()
#81 0x0000000000000000 in ?? ()
#82 0x0000000000000000 in ?? ()
#83 0x0000000000000000 in ?? ()
#84 0x0000000000000000 in ?? ()
#85 0x0000000000000000 in ?? ()
#86 0x0000000000000000 in ?? ()
#87 0x0000000000000000 in ?? ()
#88 0x0000000000000000 in ?? ()
#89 0x0000000000000000 in ?? ()
#90 0x0000000000000000 in ?? ()
#91 0x0000000000000000 in ?? ()
#92 0x0000000000000000 in ?? ()
#93 0x0000000000000000 in ?? ()
#94 0x0000000000000000 in ?? ()
#95 0x0000000000000000 in ?? ()
#96 0x0000000000000000 in ?? ()
#97 0x0000000000000000 in ?? ()
#98 0x0000000000000000 in ?? ()
#99 0x0000000000000000 in ?? ()
#100 0x0000000000000000 in ?? ()
#101 0x0000000000000000 in ?? ()
#102 0x0000000000000000 in ?? ()
---Type to continue, or q to quit---
#103 0x0000000000000000 in ?? ()
#104 0x0000000000000000 in ?? ()
#105 0x0000000000000000 in ?? ()
#106 0x0000000000000000 in ?? ()
#107 0x0000000000000000 in ?? ()
#108 0x0000000000000000 in ?? ()
#109 0x0000000000000000 in ?? ()
#110 0x0000000000000000 in ?? ()
#111 0x0000000000000000 in ?? ()
#112 0x0000000000000000 in ?? ()
#113 0x0000000000000000 in ?? ()
#114 0x0000000000000000 in ?? ()
#115 0x0000000000000000 in ?? ()
Cannot access memory at address 0xffffffffac2c1000


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