[Bug 194489] New: Fatal trap 12: page fault while in kernel mode, when accessing rocketraid 1740/hptrr

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194489

            Bug ID: 194489
           Summary: Fatal trap 12: page fault while in kernel mode, when
                    accessing rocketraid 1740/hptrr
           Product: Base System
           Version: 10.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: Needs Triage
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: bc at skogen.nu

Created attachment 148506
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=148506&action=edit
crash data

I have a rocketraid 1740, bios 1.01, raid 5, 4x1Tbps, connected to a 10.0
system and consistently when running fsck on the raid, when fsck completes, and
is about to mark the filesystem as clean I get Fatal trap 12. Repeatable.
Which means I can't mount it.. It worked fine previously on a 8.4 system.

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x0
fault code              = supervisor read instruction, page not present
instruction pointer     = 0x20:0x0
stack pointer           = 0x28:0xfffffe0096aa5a40
frame pointer           = 0x28:0x0
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         = 12 (irq20: hptrr0)
trap number             = 12
panic: page fault
cpuid = 0
KDB: stack backtrace:
#0 0xffffffff808e7e90 at kdb_backtrace+0x60
#1 0xffffffff808af975 at panic+0x155
#2 0xffffffff80c8e822 at trap_fatal+0x3a2
#3 0xffffffff80c8eaf9 at trap_pfault+0x2c9
#4 0xffffffff80c8e286 at trap+0x5e6
#5 0xffffffff80c75522 at calltrap+0x8
Uptime: 57m31s
Dumping 328 out of 2024 MB:..5%..15%..25%..35%..44%..54%..64%..74%..83%..93%
Also dump if needed.

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