Re: 7 LOR with resent -current

Hello,

On 17/02/2008, haro_at_kgt.co.jp <haro_at_kgt.co.jp> wrote:
> Hi all,
>
> As I've seen few reports regarding new LORs with resent -current,
> I checked my notebook and found 7 LOR in one session. ;-)
Same here :) though it somewhat different.

> Some are old well known, but mostly are fairly new.
> This is from -current of few days old.
>
> Regards,
>  Haro
>
[7 haro's LORs snipped]

7 LORs with new two (these are ffs_snapshot related).
I got all of them while booting except "ffs_snapshot".
These two after I ran kgdb with kernel dump (see another mail).
Included with dmesg to show LORs in order they appear:

Copyright (c) 1992-2008 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 8.0-CURRENT #9: Fri Feb 15 14:31:07 MSK 2008
    root_at_pl.h3:/var/obj/usr/src/sys/MYKERNEL
WARNING: WITNESS option enabled, expect reduced performance.
Timecounter "i8254" frequency 1193364 Hz quality 0
CPU: AMD Athlon(tm) XP (1152.80-MHz 686-class CPU)
  Origin = "AuthenticAMD"  Id = 0x662  Stepping = 2
  Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
  AMD Features=0xc0480800<SYSCALL,MP,MMX+,3DNow!+,3DNow!>
real memory  = 536805376 (511 MB)
avail memory = 516317184 (492 MB)
mptable_probe: MP Config Table has bad signature:
ACPI APIC Table: <Nvidia AWRDACPI>
ioapic0 <Version 1.1> irqs 0-23 on motherboard
ichwd module loaded
kbd1 at kbdmux0
acpi0: <Nvidia AWRDACPI> on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
acpi0: reservation of 0, a0000 (3) failed
acpi0: reservation of 100000, 1fef0000 (3) failed
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0
cpu0: <ACPI CPU> on acpi0
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
Correcting nForce2 C1 CPU disconnect hangs
agp0: <NVIDIA nForce2 AGP Controller> on hostb0
pci0: <memory, RAM> at device 0.1 (no driver attached)
pci0: <memory, RAM> at device 0.2 (no driver attached)
pci0: <memory, RAM> at device 0.3 (no driver attached)
pci0: <memory, RAM> at device 0.4 (no driver attached)
pci0: <memory, RAM> at device 0.5 (no driver attached)
isab0: <PCI-ISA bridge> at device 1.0 on pci0
isa0: <ISA bus> on isab0
pci0: <serial bus, SMBus> at device 1.1 (no driver attached)
ohci0: <OHCI (generic) USB controller> mem 0xe2003000-0xe2003fff irq
20 at device 2.0 on pci0
ohci0: [GIANT-LOCKED]
ohci0: [ITHREAD]
usb0: OHCI version 1.0, legacy support
usb0: <OHCI (generic) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: <nVidia OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
uhub0: 3 ports with 3 removable, self powered
ohci1: <OHCI (generic) USB controller> mem 0xe2004000-0xe2004fff irq
21 at device 2.1 on pci0
ohci1: [GIANT-LOCKED]
ohci1: [ITHREAD]
usb1: OHCI version 1.0, legacy support
usb1: <OHCI (generic) USB controller> on ohci1
usb1: USB revision 1.0
uhub1: <nVidia OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
uhub1: 3 ports with 3 removable, self powered
ehci0: <NVIDIA nForce2 USB 2.0 controller> mem 0xe2000000-0xe20000ff
irq 22 at device 2.2 on pci0
ehci0: [GIANT-LOCKED]
ehci0: [ITHREAD]
usb2: EHCI version 1.0
usb2: companion controllers, 4 ports each: usb0 usb1
usb2: <NVIDIA nForce2 USB 2.0 controller> on ehci0
usb2: USB revision 2.0
uhub2: <nVidia EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb2
uhub2: 6 ports with 6 removable, self powered
nfe0: <NVIDIA nForce2 MCP2 Networking Adapter> port 0xe000-0xe007 mem
0xe2001000-0xe2001fff irq 20 at device 4.0 on pci0
miibus0: <MII bus> on nfe0
rlphy0: <RTL8201L 10/100 media interface> PHY 1 on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
nfe0: Ethernet address: 00:04:61:6c:76:b1
nfe0: [FILTER]
pcib1: <ACPI PCI-PCI bridge> at device 8.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pcm0: <Envy24HT audio (M-Audio Audiophile 192)> port
0xd000-0xd01f,0xd400-0xd47f irq 16 at device 8.0 on pci1
pcm0: [GIANT-LOCKED]
pcm0: [ITHREAD]
pcm0: system configuration
  SubVendorID: 0x1412, SubDeviceID: 0x3632
  XIN2 Clock Source: 49.152MHz(192kHz*256)
  MPU-401 UART(s) #: 1
  ADC #: 1 and SPDIF receiver connected
  DAC #: 1
  Multi-track converter type: I2S(with volume, 192KHz support, 24bit
resolution, ID#0x0)
  S/PDIF(IN/OUT): 1/1 ID# 0x00
  GPIO(mask/dir/state): 0x45/0x7fffba/0x4000b5
atapci0: <nVidia nForce2 UDMA133 controller> port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xf000-0xf00f at device 9.0 on
pci0
ata0: <ATA channel 0> on atapci0
ata0: [ITHREAD]
ata1: <ATA channel 1> on atapci0
ata1: [ITHREAD]
pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci2: <ACPI PCI bus> on pcib2
vgapci0: <VGA-compatible display> mem
0xe0000000-0xe0ffffff,0xd8000000-0xdfffffff irq 19 at device 0.0 on
pci2
acpi_tz0: <Thermal Zone> on acpi0
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
sio0: [FILTER]
sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
sio1: [FILTER]
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
pmtimer0 on isa0
orm0: <ISA Option ROM> at iomem 0xc0000-0xcffff pnpid ORM0000 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
ppbus0: [ITHREAD]
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
ppc0: [GIANT-LOCKED]
ppc0: [ITHREAD]
Timecounter "TSC" frequency 1152797874 Hz quality 800
Timecounters tick every 1.000 msec
ad0: 38146MB <Seagate ST340014A 3.16> at ata0-master UDMA100
acd0: DVDR <PIONEER DVD-RW DVR-111/1.23> at ata1-slave UDMA66
WARNING: WITNESS option enabled, expect reduced performance.
GEOM_LABEL: Label for provider ad0s2 is ntfs/Local Disk.
lock order reversal:
 1st 0xc2aa5e28 devfs (devfs) _at_ /usr/src/sys/kern/vfs_subr.c:2061
 2nd 0xc2b7f9d4 devfsmount (devfsmount) _at_
/usr/src/sys/fs/devfs/devfs_vnops.c:201
KDB: stack backtrace:
db_trace_self_wrapper(c0765ade,d3ac6bbc,c0570e56,c0767dd3,c2b7f9d4,...)
at db_trace_self_wrapper+0x26
kdb_backtrace(c0767dd3,c2b7f9d4,c075975e,c075975e,c075979f,...) at
kdb_backtrace+0x29
witness_checkorder(c2b7f9d4,9,c075979f,c9,c7,...) at witness_checkorder+0x6d6
_sx_xlock(c2b7f9d4,0,c075979f,c9,c2b7f9d4,...) at _sx_xlock+0x7d
devfs_allocv(c2b94900,c2bbb000,d3ac6c28,c28eccc0,c076db66,...) at
devfs_allocv+0x142
devfs_root(c2bbb000,2,c0831af8,c28eccc0,ca,...) at devfs_root+0x51
set_rootvnode(c0831ae0,0,c076db66,5ed,c05ae090,...) at set_rootvnode+0x2b
vfs_mountroot(c07e6410,4,c075d9f4,260,0,...) at vfs_mountroot+0x356
start_init(0,d3ac6d38,c075f34d,30c,c28e9ab0,...) at start_init+0x65
fork_exit(c0501d90,0,d3ac6d38) at fork_exit+0xb8
fork_trampoline() at fork_trampoline+0x8
--- trap 0, eip = 0, esp = 0xd3ac6d70, ebp = 0 ---
Trying to mount root from ufs:/dev/ad0s4a
WARNING: / was not properly dismounted
lock order reversal:
 1st 0xc2aa59e8 ufs (ufs) _at_ /usr/src/sys/kern/vfs_subr.c:2061
 2nd 0xc2bbb000 vfslock (vfslock) _at_ /usr/src/sys/kern/vfs_subr.c:364
KDB: stack backtrace:
db_trace_self_wrapper(c0765ade,d3ac69e4,c0570e56,c0767dd3,c2bbb000,...)
at db_trace_self_wrapper+0x26
kdb_backtrace(c0767dd3,c2bbb000,c076dc64,c076dc64,c076e201,...) at
kdb_backtrace+0x29
witness_checkorder(c2bbb000,1,c076e201,16c,d3ac6a24,...) at
witness_checkorder+0x6d6
_lockmgr(c2bbb000,2001,c2bbb030,c076e201,16c,...) at _lockmgr+0x1e5
vfs_busy(c2bbb000,0,0,c28eccc0,d3ac6b58,...) at vfs_busy+0x198
lookup(d3ac6b44,c076d914,c6,bf,c28cea2c,...) at lookup+0x7d4
namei(d3ac6b44,c28ecd54,c07a7a84,c076db66,c2bbb030,...) at namei+0x348
kern_unlink(c28eccc0,c076dfa3,1,628,0,...) at kern_unlink+0x40
vfs_mountroot_try(c076e15d,c075c95a,c0757abf,1,c05ae090,...) at
vfs_mountroot_try+0x470
vfs_mountroot(c07e6410,4,c075d9f4,260,0,...) at vfs_mountroot+0x412
start_init(0,d3ac6d38,c075f34d,30c,c28e9ab0,...) at start_init+0x65
fork_exit(c0501d90,0,d3ac6d38) at fork_exit+0xb8
fork_trampoline() at fork_trampoline+0x8
--- trap 0, eip = 0, esp = 0xd3ac6d70, ebp = 0 ---
lock order reversal:
 1st 0xc28f3044 user map (user map) _at_ /usr/src/sys/vm/vm_map.c:3111
 2nd 0xc2aa57c8 ufs (ufs) _at_ /usr/src/sys/kern/vfs_subr.c:2061
KDB: stack backtrace:
db_trace_self_wrapper(c0765ade,d3ac69cc,c0570e56,c0767dd3,c2aa57c8,...)
at db_trace_self_wrapper+0x26
kdb_backtrace(c0767dd3,c2aa57c8,c075d212,c075d212,c076e201,...) at
kdb_backtrace+0x29
witness_checkorder(c2aa57c8,1,c076e201,80d,d3ac6a00,...) at
witness_checkorder+0x6d6
_lockmgr(c2aa57c8,3041,c2aa57f8,c076e201,80d,...) at _lockmgr+0x1e5
ffs_lock(d3ac6a74,c052b154,c07eb374,3041,3041,...) at ffs_lock+0x8a
VOP_LOCK1_APV(c07bf4c0,d3ac6a74,c075c958,3,c2aa57f8,...) at VOP_LOCK1_APV+0xa5
_vn_lock(c2aa5770,3041,c076e201,80d,0,...) at _vn_lock+0xe8
vget(c2aa5770,3041,c28eccc0,4a9,c1045580,...) at vget+0x109
vnode_pager_lock(c1045400,0,c077e10a,127,d3ac6be8,...) at vnode_pager_lock+0x1ad
vm_fault(c28f3000,80d2000,2,8,80d2a60,...) at vm_fault+0x1df
trap_pfault(5,0,c0789a42,2c8,c,...) at trap_pfault+0xf8
trap(d3ac6d38) at trap+0x258
calltrap() at calltrap+0x6
--- trap 0xc, eip = 0x80480e5, esp = 0xbfbfef10, ebp = 0xbfbfef30 ---
acd0: FAILURE - INQUIRY ILLEGAL REQUEST asc=0x24 ascq=0x00 sks=0x48 0x00 0x01
cd0 at ata1 bus 0 target 1 lun 0
cd0: <PIONEER DVD-RW  DVR-111 1.23> Removable CD-ROM SCSI-0 device
cd0: 66.000MB/s transfers
cd0: Attempt to query device size failed: NOT READY, Medium not present
WARNING: TMPFS is considered to be a highly experimental feature in FreeBSD.
WARNING: /usr was not properly dismounted
lock order reversal:
 1st 0xc2c28d18 tmpfs (tmpfs) _at_ /usr/src/sys/kern/vfs_subr.c:2061
 2nd 0xc2bba7d4 vfslock (vfslock) _at_ /usr/src/sys/kern/vfs_subr.c:364
KDB: stack backtrace:
db_trace_self_wrapper(c0765ade,d5fc4a24,c0570e56,c0767dd3,c2bba7d4,...)
at db_trace_self_wrapper+0x26
kdb_backtrace(c0767dd3,c2bba7d4,c076dc64,c076dc64,c076e201,...) at
kdb_backtrace+0x29
witness_checkorder(c2bba7d4,1,c076e201,16c,d5fc4a64,...) at
witness_checkorder+0x6d6
_lockmgr(c2bba7d4,2001,c2bba804,c076e201,16c,...) at _lockmgr+0x1e5
vfs_busy(c2bba7d4,10,0,c2b7d880,8,...) at vfs_busy+0x198
vfs_donmount(810e080,c,d5fc4c70,c2e8eb80,810b6a0,...) at vfs_donmount+0xdd7
nmount(c2b7d880,d5fc4cfc,c,c0768aa5,c07a3890,...) at nmount+0xb1
syscall(d5fc4d38) at syscall+0x2b3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (378, FreeBSD ELF32, nmount), eip = 0x280dfd53, esp =
0xbfbfe97c, ebp = 0xbfbfedd8 ---
lock order reversal:
 1st 0xc2c29388 msdosfs (msdosfs) _at_ /usr/src/sys/kern/vfs_subr.c:2061
 2nd 0xc2bba29c vfslock (vfslock) _at_ /usr/src/sys/kern/vfs_subr.c:364
KDB: stack backtrace:
db_trace_self_wrapper(c0765ade,d5fc4a24,c0570e56,c0767dd3,c2bba29c,...)
at db_trace_self_wrapper+0x26
kdb_backtrace(c0767dd3,c2bba29c,c076dc64,c076dc64,c076e201,...) at
kdb_backtrace+0x29
witness_checkorder(c2bba29c,1,c076e201,16c,d5fc4a64,...) at
witness_checkorder+0x6d6
_lockmgr(c2bba29c,2001,c2bba2cc,c076e201,16c,...) at _lockmgr+0x1e5
vfs_busy(c2bba29c,10,0,c2b7d880,8,...) at vfs_busy+0x198
vfs_donmount(810e080,c,d5fc4c70,c2e8e180,810ba50,...) at vfs_donmount+0xdd7
nmount(c2b7d880,d5fc4cfc,c,c0768aa5,c07a3890,...) at nmount+0xb1
syscall(d5fc4d38) at syscall+0x2b3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (378, FreeBSD ELF32, nmount), eip = 0x280dfd53, esp =
0xbfbfe97c, ebp = 0xbfbfedd8 ---
lock order reversal:
 1st 0xc2f0d498 ufs (ufs) _at_ /usr/src/sys/ufs/ffs/ffs_snapshot.c:416
 2nd 0xcced5884 getblk (bufwait) _at_ /usr/src/sys/sys/buf.h:301
 3rd 0xc2c28af8 ufs (ufs) _at_ /usr/src/sys/ufs/ffs/ffs_snapshot.c:537
KDB: stack backtrace:
db_trace_self_wrapper(c0765ade,d60115b0,c0570e56,c0767dec,c2c28af8,...)
at db_trace_self_wrapper+0x26
kdb_backtrace(c0767dec,c2c28af8,c075d212,c075d212,c077a89f,...) at
kdb_backtrace+0x29
witness_checkorder(c2c28af8,9,c077a89f,219,d60115e4,...) at
witness_checkorder+0x6d6
_lockmgr(c2c28af8,2002,c2c28b28,c077a89f,219,...) at _lockmgr+0x4fd
ffs_lock(d6011658,d6011650,c057063c,2002,c2c28aa0,...) at ffs_lock+0x8a
VOP_LOCK1_APV(c07bf4c0,d6011658,205,c077a89f,c2c28b28,...) at VOP_LOCK1_APV+0xa5
_vn_lock(c2c28aa0,2002,c077a89f,219,c28cd800,...) at _vn_lock+0xe8
ffs_snapshot(c2bba538,c2a81420,c077c162,14f,c077d8d9,...) at ffs_snapshot+0x14dc
ffs_mount(c2bba538,c2f16880,c076db66,3e9,d6011bd4,...) at ffs_mount+0x1561
vfs_donmount(810a040,8,d6011c70,c2f01980,1211000,...) at vfs_donmount+0x13a9
nmount(c2f16880,d6011cfc,c,d6011d38,c07a3890,...) at nmount+0xb1
syscall(d6011d38) at syscall+0x2b3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (378, FreeBSD ELF32, nmount), eip = 0x280e2d53, esp =
0xbfbfeb3c, ebp = 0xbfbfee98 ---
lock order reversal:
 1st 0xc2f01694 snaplk (snaplk) _at_ /usr/src/sys/kern/vfs_vnops.c:290
 2nd 0xc2f0d498 ufs (ufs) _at_ /usr/src/sys/ufs/ffs/ffs_snapshot.c:1594
KDB: stack backtrace:
db_trace_self_wrapper(c0765ade,d6011988,c0570e56,c0767dd3,c2f0d498,...)
at db_trace_self_wrapper+0x26
kdb_backtrace(c0767dd3,c2f0d498,c075d212,c075d212,c077a89f,...) at
kdb_backtrace+0x29
witness_checkorder(c2f0d498,9,c077a89f,63a,c077a89f,...) at
witness_checkorder+0x6d6
_lockmgr(c2f0d498,2,0,c077a89f,63a,...) at _lockmgr+0x4fd
ffs_snapremove(c2f0d440,c2bba568,0,c076eefa,434,...) at ffs_snapremove+0x113
softdep_releasefile(c2f13c60,d6011ab0,2,c2f16914,c07a7a84,...) at
softdep_releasefile+0x3b
ufs_inactive(d6011af0,c2f0d4c8,c2f0d440,c2f0d4c8,d6011b08,...) at
ufs_inactive+0x1ca
VOP_INACTIVE_APV(c07bf4c0,d6011af0,c076e201,8fd,c07cf4e0,...) at
VOP_INACTIVE_APV+0xa5
vinactive(c07bf4c0,d6011b24,c076e201,889,129,...) at vinactive+0x91
vput(c2f0d440,d6011b5c,c076eefa,122,c07cf260,...) at vput+0x1e2
vn_close(c2f0d440,1,c28ce900,c2f16880,c07e6e34,...) at vn_close+0xec
vn_closefile(c2bc971c,c2f16880,6db,0,c2bc971c,...) at vn_closefile+0xe9
_fdrop(c2bc971c,c2f16880,c0570727,c08312f8,0,...) at _fdrop+0x43
closef(c2bc971c,c2f16880,419,3fe,c2bc971c,...) at closef+0x276
kern_close(c2f16880,4,d6011d2c,c0727903,c2f16880,...) at kern_close+0x11c
close(c2f16880,d6011cfc,4,c0768aa5,c07a15b0,...) at close+0x1a
syscall(d6011d38) at syscall+0x2b3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (6, FreeBSD ELF32, close), eip = 0x28177ddb, esp =
0xbfbfeb3c, ebp = 0xbfbfee98 ---