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DragonFly bugs List (threaded) for 2010-01
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vinum: page fault panic in vn_strategy

From: Rumko <rumcic@xxxxxxxxx>
Date: Fri, 15 Jan 2010 13:37:33 +0100

I have 2 disks that I was preparing for a vinum based raid1 mount and some time
ago were mountable (just not as root mounts :) ), but now when I start vinum,
the mentioned panic occurs. Not quite sure, but I think the vinum config I
used for the disks is the one at http://www.rumko.net/dragonfly/config and the
disks are labelled like http://www.rumko.net/dragonfly/disklabel

The dump is at leaf:~rumko/crash/vinum/*
Unread portion of the kernel message buffer:
<6>vinum: loaded

Fatal trap 12: page fault while in kernel mode
mp_lock = 00000000; cpuid = 0; lapic.id = 00000000
fault virtual address   = 0x34
fault code              = supervisor write, page not present
instruction pointer     = 0x8:0xc02454a6
stack pointer           = 0x10:0xde7b0afc
frame pointer           = 0x10:0xde7b0afc
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         = 981 (vinum)
current thread          = pri 10
 <- SMP: XXX
trap number             = 12
panic: page fault
mp_lock = 00000000; cpuid = 0
Trace beginning at frame 0xde7b0a00
panic(de7b0a24,10,de7b0ab4,c,de7b0a44) at panic+0x14d
panic(c0410230,c04277da,2,0,fffff) at panic+0x14d
trap_fatal(34,0,de7b0ab4,d99e0330,d99e0210) at trap_fatal+0x31d
trap_pfault(a,c01ff30f,c04f8ba0,d99e0210,d97c6a98) at trap_pfault+0x12e
trap(de7b0ab4) at trap+0x776
calltrap() at calltrap+0xd
--- trap 0, eip = 0x2, esp = 0xde7b0af8, ebp = 0x200 ---
boot() called on cpu#0
Uptime: 1m21s
Physical memory: 1785 MB
Dumping 149 MB: 134 118 102 86 70 54 38 22 6

Reading symbols from /boot/modules/acpi.ko...done.
Loaded symbols for /boot/modules/acpi.ko
Reading symbols from /boot/modules/null.ko...done.
Loaded symbols for /boot/modules/null.ko
Reading symbols from /boot/modules/vinum.ko...done.
Loaded symbols for /boot/modules/vinum.ko
_get_mycpu (di=0xc04a1f00) at ./machine/thread.h:83
83          __asm ("movl %%fs:globaldata,%0" : "=r"
(gd) : "m"(__mycpu__dummy));
(kgdb) bt
#0  _get_mycpu (di=0xc04a1f00) at ./machine/thread.h:83
#1  md_dumpsys (di=0xc04a1f00)
at /usr/src/sys/platform/pc32/i386/dump_machdep.c:264
#2  0xc0200b36 in dumpsys () at /usr/src/sys/kern/kern_shutdown.c:838
#3  0xc0201108 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:387
#4  0xc0201666 in panic (fmt=0xc0410230 "%s")
at /usr/src/sys/kern/kern_shutdown.c:744
#5  0xc03ddf1d in trap_fatal (frame=0xde7b0ab4, eva=<value optimized out>)
at /usr/src/sys/platform/pc32/i386/trap.c:1127
#6  0xc03de05d in trap_pfault (frame=0xde7b0ab4, usermode=0, eva=52)
at /usr/src/sys/platform/pc32/i386/trap.c:1028
#7  0xc03dedad in trap (frame=0xde7b0ab4)
at /usr/src/sys/platform/pc32/i386/trap.c:707
#8  0xc03c7c97 in calltrap ()
at /usr/src/sys/platform/pc32/i386/exception.s:785
#9  0xc02454a6 in vn_strategy (vp=0x0, bio=0xc3dff8a0)
at /usr/src/sys/kern/vfs_bio.c:3366
#10 0xde7bdc1b in driveio (drive=0xda0f68c0,
buf=0xd2767000 "\377\377\377\377\336\300\255\336\336\300\255\336\336\300\255\336\336\300\255\336\336\300\255\336\336\300\255\336\336\300\255\336\336\300\255\336\336\300\255\336\336\300\255\336\336\300\255\336\336\300\255\336\336\300\255\336\336\300\255\336\336\300\255\336",
    offset=4096, cmd=BUF_CMD_READ) at /usr/src/sys/dev/raid/vinum/vinumio.c:293
#11 0xde7bdf79 in read_drive_label (drive=0xda0f68c0, verbose=0)
at /usr/src/sys/dev/raid/vinum/vinumio.c:338
#12 0xde7be054 in check_drive (devicename=0xde7b0ba8 "/dev/da1s1h")
at /usr/src/sys/dev/raid/vinum/vinumio.c:378
#13 0xde7be40c in vinum_scandisk (devicename=0xc3a638e0, drives=3)
at /usr/src/sys/dev/raid/vinum/vinumio.c:739
#14 0xde7b917e in vinumattach (mod=0xc3b04ff8, type=MOD_LOAD, unused=0x0)
at /usr/src/sys/dev/raid/vinum/vinum.c:140
#15 vinum_modevent (mod=0xc3b04ff8, type=MOD_LOAD, unused=0x0)
at /usr/src/sys/dev/raid/vinum/vinum.c:296
#16 0xc01df436 in module_register_init (arg=0xde7c60f0)
at /usr/src/sys/kern/kern_module.c:112
#17 0xc01e0be8 in linker_file_sysinit
(filename=0xc3a88928 "/boot/modules/vinum.ko", result=0xde7b0c88)
at /usr/src/sys/kern/kern_linker.c:171
#18 linker_load_file (filename=0xc3a88928 "/boot/modules/vinum.ko",
result=0xde7b0c88) at /usr/src/sys/kern/kern_linker.c:336
#19 0xc01e0d07 in linker_load_module (kldname=<value optimized out>,
modname=0xd9841000 "vinum", parent=0x0, verinfo=0x0, lfpp=0xde7b0cb0)
    at /usr/src/sys/kern/kern_linker.c:1451
#20 0xc01e1112 in sys_kldload (uap=0xde7b0cf0)
at /usr/src/sys/kern/kern_linker.c:784
#21 0xc03df6a9 in syscall2 (frame=0xde7b0d40)
at /usr/src/sys/platform/pc32/i386/trap.c:1361
#22 0xc03c7d46 in Xint0x80_syscall ()
at /usr/src/sys/platform/pc32/i386/exception.s:876
#23 0x0000001f in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

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