Date: Mon, 28 Jun 1999 17:39:06 +0200 (CEST) From: A.Leidinger@WJPServer.CS.Uni-SB.de To: freebsd-current@freebsd.org Subject: Panic with savecore (and bug with fsck) Message-ID: <199906281539.RAA00494@work.net.local>
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Hi,
after 4 crashes in 1 hour without a panic I've got a trace, but it's a
trace from a panic produced by "savecore". I didn't think the 4 crashes
are related to this trace.
I was only able to reboot after commenting savecore in /etc/rc.
Btw. after aborting fsck (<ctrl>+<c>) I've got:
fsck in free(): warning: page is already free.
fsck in free(): warning: chunk is already free.
The world (and kernel) is from a cvsup around Sunday 2am (CEST).
ok, here's the trace:
---snip---
checking for core dump... panic: lockmgr: pid -2, not exclusive lock
holder 173 unlocking
Debugger("panic")
stopped at Debugger+0x39: movl $0,in_Debugger
db> trace
Fatal trap 12: page fault ...
fault virtual address = 0x2
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc021f080
stack pointer = 0x10:0xc02961d0
frame pointer = 0x10:0x6
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 = Idle
interrupt mask = bio
kernel: type 12 trap, code 0
---snip---
dmesg (verbose output available):
---snip---
Copyright (c) 1992-1999 The FreeBSD Project.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 4.0-CURRENT #23: Sun Jun 27 14:04:30 CEST 1999
root@work.net.local:/usr/src/sys/compile/WORK
Timecounter "i8254" frequency 1193270 Hz
CPU: Pentium II (267.29-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x634 Stepping=4
Features=0x80f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,MMX
>
real memory = 67096576 (65524K bytes)
config> pnp 1 0 os enable port0 0x220 irq0 5 drq0 1 drq1 5
avail memory = 61399040 (59960K bytes)
Preloaded elf kernel "kernel" at 0xc037b000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc037b09c.
Preloaded elf module "vesa.ko" at 0xc037b0ec.
Preloaded elf module "cd9660.ko" at 0xc037b188.
Preloaded elf module "kernfs.ko" at 0xc037b228.
Preloaded elf module "mfs.ko" at 0xc037b2c8.
Preloaded elf module "msdos.ko" at 0xc037b364.
Preloaded elf module "null.ko" at 0xc037b404.
Preloaded elf module "procfs.ko" at 0xc037b4a0.
Preloaded elf module "joy.ko" at 0xc037b540.
link_elf: symbol lkmexists undefined
VESA: v2.0, 4096k memory, flags:0x1, mode table:0xc0346ea2 (1000022)
VESA: Matrox Graphics Inc.
Pentium Pro MTRR support enabled, default memory type is uncacheable
Probing for PnP devices:
CSN 1 Vendor ID: CTL0070 [0x70008c0e] Serial 0xffffffff Comp ID: PNPb02f [0x2fb0d041]
pcm1 (SB16pnp <SB16 PnP> sn 0xffffffff) at 0x220-0x22f irq 5 drq 1 flags 0x15 on isa
npx0: <math processor> on motherboard
npx0: INT 16 interface
apm0: <APM BIOS> on motherboard
apm: found APM BIOS version 1.2
pcib0: <PCI host bus adapter> on motherboard
pci0: <PCI bus> on pcib0
chip0: <Intel 82443LX (440 LX) host to PCI bridge> at device 0.0 on pci0
pcib1: <Intel 82443LX (440 LX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
isab0: <Intel 82371AB PCI to ISA bridge> at device 4.0 on pci0
ide_pci0: <Intel PIIX4 Bus-master IDE controller> at device 4.1 on pci0
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> irq 9 at device 4.2 on pci0
usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
intpm0: <Intel 82371AB Power management controller> at device 4.3 on pci0
intpm0: I/O mapped e800
intpm0: intr IRQ 9 enabled revision 0
intsmb0: <Intel PIIX4 SMBUS Interface>
smbus0: <System Management Bus> on intsmb0
smb0: <SMBus general purpose I/O> on smbus0
intpm0: PM I/O mapped e400
ahc0: <Adaptec aic7880 Ultra SCSI adapter> irq 9 at device 6.0 on pci0
ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
ed0: <NE2000 PCI Ethernet (RealTek 8029)> irq 15 at device 10.0 on pci0
ed0: address 00:80:ad:40:bd:e7, type NE2000 (16 bit)
vga-pci0: <Matrox MGA 1024SG/1064SG/1164SG graphics accelerator> irq 11 at device 12.0 on pci0
isa0: <ISA bus> on motherboard
atkbdc0: <keyboard controller (i8042)> at port 0x60-0x6f on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model Generic PS/2 mouse, device ID 0
vga0: <Generic ISA VGA> at port 0x3b0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x6 on isa0
sc0: VGA <16 virtual consoles, flags=0x206>
wdc0 at port 0x1f0-0x1f7 irq 14 on isa0
wdc0: unit 0 (wd0): <Conner Peripherals 420MB - CFS420A>
wd0: 406MB (832608 sectors), 826 cyls, 16 heads, 63 S/T, 512 B/S
wdc0: unit 1 (atapi): <IOMEGA ZIP 100 ATAPI/23.D>, removable, intr, iordi
s
wfd0: medium type unknown (no disk)
wfd0: buggy Zip drive, 64-block transfer limit set
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> at fdc0 drive 0
sio0 at port 0x3f8-0x3ff irq 4 flags 0x20010 on isa0
sio0: type ST16650A
sio1 at port 0x2e8-0x2ef irq 10 flags 0x20000 on isa0
sio1: type ST16650A
pca0 at port 0x40 on isa0
pca0: PC speaker audio driver
isic0 at port 0x300 irq 3 flags 0x4 on isa0
isic0: AVM A1 or AVM Fritz!Card
isic0: ISAC 2085 Version A1/A2 or 2086/2186 Version 1.1 (IOM-2) (Addr=0x16e0)
isic0: HSCX 82525 or 21525 Version 2.1 (AddrA=0x6e0, AddrB=0xee0)
ppc0 at port 0x378-0x37f irq 7 on isa0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/9 bytes threshold
lpt0: <generic printer> on ppbus 0
lpt0: Interrupt-driven port
ppi0: <generic parallel i/o> on ppbus 0
i4btrc: 2 ISDN trace device(s) attached
i4brbch: 2 raw B channel access device(s) attached
i4btel: 1 ISDN telephony interface device(s) attached
i4bipr: 2 IP over raw HDLC ISDN device(s) attached (VJ header compression)
i4bctl: ISDN system control port attached
i4bisppp: 2 ISDN SyncPPP device(s) attached
i4b: ISDN call control device attached
IP packet filtering initialized, divert enabled, rule-based forwarding enabled,
logging limited to 100 packets/entry
ds0 XXX: driver didn't set ifq_maxlen
IP Filter: initialized. Default = pass all, Logging = enabled
Waiting 7 seconds for SCSI devices to settle
changing root device to da0s1a
da0 at ahc0 bus 0 target 0 lun 0
da0: <MICROP 4743NS S168> Fixed Direct Access SCSI-2 device
da0: 20.000MB/s transfers (20.000MHz, offset 15), Tagged Queueing Enabled
da0: 4100MB (8398656 512 byte sectors: 255H 63S/T 522C)
cd0 at ahc0 bus 0 target 1 lun 0
cd0: <TEAC CD-R55S 1.0L> Removable CD-ROM SCSI-2 device
cd0: 10.000MB/s transfers (10.000MHz, offset 15)
cd0: Attempt to query device size failed: NOT READY, Medium not present
cd1 at ahc0 bus 0 target 2 lun 0
cd1: <PIONEER CD-ROM DR-U16S 1.01> Removable CD-ROM SCSI-2 device
cd1: 20.000MB/s transfers (20.000MHz, offset 15)
cd1: Attempt to query device size failed: NOT READY, Medium not present
---snip---
I try to reproduce one of the mentioned 4 crashes without a panic with
a recent -current.
In case you need more informations I make a backup of /usr/src and
/kernel.
Bye,
Alexander.
--
Columbus had a fourth ship. It sailed over the edge.
http://netchild.home.pages.de A.Leidinger+Home @ WJPServer.CS.Uni-SB.de
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