Date: Wed, 28 Jun 2000 11:15:34 +1000 (EST) From: Gregory Bond <gnb@itga.com.au> To: FreeBSD-gnats-submit@freebsd.org Subject: kern/19553: "panic: zone: entry not free" in namei Message-ID: <200006280115.LAA24918@hellcat.itga.com.au>
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>Number: 19553
>Category: kern
>Synopsis: "panic: zone: entry not free" in namei()
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Jun 27 18:20:03 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator: Gregory Bond
>Release: FreeBSD 4.0-STABLE i386
>Organization:
ITG Australia Limited
>Environment:
FreeBSD 4.0-Stable (as of 200006260800 UTC)
Kernel compiled with "options INVARIANTS"
>Description:
When using a FreeBSD 4 ftp client to ls a CD with symlinks, kernel panics with
"zone: entry not free"
This is quite scary because the traceback includes namei().....
Traceback, config file & dmesg attached below.
hellcat## gdb -k kernel.debug.1 vmcore.1
GNU gdb 4.18
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-unknown-freebsd"...
IdlePTD 3342336
initial pcb at 2b7420
panicstr: zone: entry not free
panic messages:
---
panic: zone: entry not free
syncing disks...
done
Uptime: 20m18s
dumping to dev #ad/1, offset 131072
dump ata0: resetting devices .. done
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38
37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 1
1 10 9 8 7 6 5 4 3 2 1
---
#0 boot (howto=256) at ../../kern/kern_shutdown.c:302
302 dumppcb.pcb_cr3 = rcr3();
(kgdb) where
#0 boot (howto=256) at ../../kern/kern_shutdown.c:302
#1 0xc014ba11 in panic (fmt=0xc0265bf9 "zone: entry not free")
at ../../kern/kern_shutdown.c:552
#2 0xc01f95a7 in zerror () at ../../vm/vm_zone.c:456
#3 0xc0173a78 in namei (ndp=0xc6240ec4) at ../../vm/vm_zone.h:91
#4 0xc0179b68 in readlink (p=0xc5c9f1e0, uap=0xc6240f80)
at ../../kern/vfs_syscalls.c:1902
#5 0xc0235951 in syscall2 (frame={tf_fs = 671744047, tf_es = 671744047,
tf_ds = -1078001617, tf_edi = 134657024, tf_esi = 134657100,
tf_ebp = -1077945572, tf_isp = -970715180, tf_ebx = -1077946600,
tf_edx = 10, tf_ecx = -1077947756, tf_eax = 58, tf_trapno = 12,
tf_err = 2, tf_eip = 672018760, tf_cs = 31, tf_eflags = 663,
tf_esp = -1077947664, tf_ss = 47}) at ../../i386/i386/trap.c:1126
#6 0xc02298e6 in Xint0x80_syscall ()
#7 0x66c4c083 in ?? ()
Cannot access memory at address 0x6602b70f.
(kgdb) ^D
machine i386
cpu I686_CPU
ident Hellcat
maxusers 32
makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
options INET #InterNETworking
#options INET6 #IPv6 communications protocols
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep this!]
options MFS #Memory Filesystem
#options MD_ROOT #MD is a potential root device
options NFS #Network Filesystem
#options NFS_ROOT #NFS usable as root device, NFS required
#options MSDOSFS #MSDOS Filesystem
#options CD9660 #ISO 9660 Filesystem
#options CD9660_ROOT #CD-ROM usable as root, CD9660 required
options PROCFS #Process filesystem
options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
options SCSI_DELAY=5000 #Delay (in ms) before probing SCSI
options UCONSOLE #Allow users to grab the console
options USERCONFIG #boot -c editor
options VISUAL_USERCONFIG #visual boot -c editor
options KTRACE #ktrace(1) support
options SYSVSHM #SYSV-style shared memory
options SYSVMSG #SYSV-style message queues
options SYSVSEM #SYSV-style semaphores
options P1003_1B #Posix P1003_1B real-time extensions
options _KPOSIX_PRIORITY_SCHEDULING
options ICMP_BANDLIM #Rate limit bad replies
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
device isa
device pci
# Floppy drives
device fdc0 at isa? port IO_FD1 irq 6 drq 2
device fd0 at fdc0 drive 0
device fd1 at fdc0 drive 1
# ATA and ATAPI devices
device ata
device atadisk # ATA disk drives
device atapicd # ATAPI CDROM drives
#device atapifd # ATAPI floppy drives
#device atapist # ATAPI tape drives
options ATA_STATIC_ID #Static device numbering
#options ATA_ENABLE_ATAPI_DMA #Enable DMA on ATAPI devices
device adv
# SCSI peripherals
device scbus # SCSI bus (required)
device da # Direct Access (disks)
device sa # Sequential Access (tape etc)
#device cd # CD
device pass # Passthrough device (direct SCSI access)
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc0 at isa? port IO_KBD
device atkbd0 at atkbdc? irq 1 flags 0x1
device psm0 at atkbdc? irq 12
device vga0 at isa?
# splash screen/screen saver
pseudo-device splash
# syscons is the default console driver, resembling an SCO console
device sc0 at isa? flags 0x100
# Floating point support - do not disable.
device npx0 at nexus? port IO_NPX irq 13
# Serial (COM) ports
device sio0 at isa? port IO_COM1 flags 0x10 irq 4
device sio1 at isa? disable port IO_COM2 irq 3
device sio2 at isa? disable port IO_COM3 irq 5
device sio3 at isa? disable port IO_COM4 irq 9
# Parallel port
device ppc0 at isa? irq 7
device ppbus # Parallel port bus (required)
device lpt # Printer
#device plip # TCP/IP over parallel
device ppi # Parallel port interface device
#device vpo # Requires scbus and da
device miibus # MII bus support
device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
# Pseudo devices - the number indicates how many units to allocated.
pseudo-device loop # Network loopback
pseudo-device ether # Ethernet support
#pseudo-device sl 1 # Kernel SLIP
#pseudo-device ppp 1 # Kernel PPP
pseudo-device tun # Packet tunnel.
pseudo-device pty # Pseudo-ttys (telnet etc)
#pseudo-device md # Memory "disks"
#pseudo-device gif 4 # IPv6 and IPv4 tunneling
#pseudo-device faith 1 # IPv6-to-IPv4 relaying (translation)
# The `bpf' pseudo-device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
pseudo-device bpf #Berkeley packet filter
options SOFTUPDATES
options DDB
options INVARIANTS
options INVARIANT_SUPPORT
pseudo-device vn
options MSGBUF_SIZE=40960
device pcm
Copyright (c) 1992-2000 The FreeBSD Project.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 4.0-STABLE #3: Tue Jun 27 13:45:49 EST 2000
toor@hellcat.itga.com.au:/usr/src/sys/compile/Hellcat
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 350797085 Hz
CPU: Pentium II/Pentium II Xeon/Celeron (350.80-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x652 Stepping = 2
Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR>
real memory = 67108864 (65536K bytes)
avail memory = 62132224 (60676K bytes)
Preloaded elf kernel "kernel" at 0xc031e000.
Pentium Pro MTRR support enabled
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <Matrox MGA G100 AGP graphics accelerator> at 0.0 irq 9
isab0: <Intel 82371AB PCI to ISA bridge> at device 4.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0xfcd0-0xfcdf at device 4.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
pci0: <Intel 82371AB/EB (PIIX4) USB controller> at 4.2 irq 11
chip1: <Intel 82371AB Power management controller> port 0x2180-0x218f at device 4.3 on pci0
adv0: <AdvanSys ASC3030/50 SCSI controller> port 0xf800-0xf8ff mem 0xfedffc00-0xfedffcff irq 11 at device 11.0 on pci0
adv0: Warning EEPROM Checksum mismatch. Using default device parameters
adv0: AdvanSys SCSI Host Adapter, SCSI ID 7, queue depth 16
xl0: <3Com 3c905B-TX Fast Etherlink XL> port 0xfc00-0xfc7f mem 0xfedff800-0xfedff87f irq 9 at device 14.0 on pci0
xl0: Ethernet address: 00:10:5a:a1:7c:7a
miibus0: <MII bus> on xl0
xlphy0: <3Com internal media interface> on miibus0
xlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model MouseMan+, device ID 0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/8 bytes threshold
ppi0: <Parallel I/O> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
adv1: Invalid baseport of 0x220 specified. Neerest valid baseport is 0x230. Failing probe.
sbc0: <Creative SB16/SB32> at port 0x220-0x22f,0x330-0x331,0x388-0x38b irq 5 drq 1,5 on isa0
sbc0: setting card to irq 5, drq 1, 5
pcm0: <SB DSP 4.13> on sbc0
adv1: Invalid baseport of 0x168 specified. Neerest valid baseport is 0x190. Failing probe.
unknown0: <Generic ESDI/IDE/ATA controller> at port 0x168-0x16f,0x36e-0x36f irq 10 on isa0
unknown1: <Reserved> at port 0x100 on isa0
adv1: Invalid baseport of 0x200 specified. Neerest valid baseport is 0x210. Failing probe.
unknown2: <Game> at port 0x200-0x207 on isa0
ad0: 4104MB <QUANTUM FIREBALL EX4.3A> [8895/15/63] at ata0-master using UDMA33
ad2: 4104MB <QUANTUM FIREBALL EX4.3A> [8895/15/63] at ata1-master using UDMA33
acd0: CD-RW <Hewlett-Packard CD-Writer Plus 8100> at ata1-slave using PIO3
Waiting 5 seconds for SCSI devices to settle
Mounting root from ufs:/dev/ad0s1a
WARNING: / was not properly dismounted
>How-To-Repeat:
This recipe will panic my system 100% of the time:
Compile 4-Stable kernel with "options INVARIANTS" (and "options
INVARIANT_SUPPORT" of course!) I've rebuilt the kernel from scratch
(to get a debugging kernel) and this still fails.
Mount WC 4.0 CD#1 on /cdrom.
From another FreeBSD 4 machine, ftp to this host as a non-root,
non-anonymous user. (I have not tried anon-ftp or root, I suspect
no difference).
[NB: Does _not_ panic if you ftp in from Solaris 2.6!]
Inside ftp, do
cd /cdrom/packages/Latest
dir rsy*
Boom, server panics.
>Fix:
None known.
>Release-Note:
>Audit-Trail:
>Unformatted:
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