Kernel bug when using quagga/zebra

From: Iulian Surugiu
Date: Sun Mar 27 2005 - 20:47:51 EST

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Hi I`m using fedora core 3 kernel (2.6.9-1.667). I
would like to mention first that this is not only the
first time i am encountering this error, however , for
the last 3 days i had had setup routers on different
distributions/kernels and quagga/zebra different
packages (source/binaries) and versions but i still
get the same behaviour.

Now by following the documentation you supplied in the
REPORTING-BUGS file here are your details:

1. Kernel panic (Oops) using zebra/quagga
2. This problem i encounter when I`m stopping the
zebra daemon.
3. Networking, zebra, quagga, bgpd, kernel, kernel
panic
4. Linux version 2.6.9-1.667
(bhcompile@xxxxxxxxxxxxxxxxxxxxxxx) (gcc version 3.4.2
20041017 (Red Hat 3.4.2-6.fc3)) #1 Tue Nov 2 14:41:25
EST 2004, Also encountered on debian too, and all
majority of 2.6.x kernels
5. Ooops message (ripped from syslog)

Jul 25 05:05:02 localhost kernel: Unable to handle
kernel NULL pointer dereference at virtual address
00000000
Jul 25 05:05:02 localhost kernel: printing eip:
Jul 25 05:05:02 localhost kernel: 022ec14e
Jul 25 05:05:02 localhost kernel: *pde = 00000000
Jul 25 05:05:02 localhost kernel: Oops: 0002 [#1]
Jul 25 05:05:02 localhost kernel: Modules linked in:
autofs4 i2c_dev i2c_core sunrpc md5 ipv6 dm_mod
8139too mii 3c59x ext3 jbd
Jul 25 05:05:02 localhost kernel: CPU: 0
Jul 25 05:05:02 localhost kernel: EIP:
0060:[<022ec14e>] Not tainted VLI
Jul 25 05:05:02 localhost kernel: EFLAGS: 00010246
(2.6.9-1.667)
Jul 25 05:05:02 localhost kernel: EIP is at
fib_release_info+0x72/0xac
Jul 25 05:05:02 localhost kernel: eax: 00000000 ebx:
00000000 ecx: 11f884e4 edx: 11f88480
Jul 25 05:05:02 localhost kernel: esi: 11f884e8 edi:
00000000 ebp: 0e444340 esp: 10dfbc90
Jul 25 05:05:02 localhost kernel: ds: 007b es: 007b
ss: 0068
Jul 25 05:05:02 localhost kernel: Process zebra (pid:
3315, threadinfo=10dfb000 task=11a9a6f0)
Jul 25 05:05:02 localhost kernel: Stack: 10cba1f0
117024c0 00000001 022ee86b 00000024 00000017 11ff4280
11f00580
Jul 25 05:05:02 localhost kernel: 008c74c2
11f00580 11e18810 11e18800 11ff4280 022ebb7c 11e18800
10970db8
Jul 25 05:05:02 localhost kernel: 10970d80
10970d80 02374788 022ebb2c 00000009 022b1f79 0000003c
00000002
Jul 25 05:05:02 localhost kernel: Call Trace:
Jul 25 05:05:02 localhost kernel: [<022ee86b>]
fn_hash_delete+0x196/0x1c8
Jul 25 05:05:02 localhost kernel: [<022ebb7c>]
inet_rtm_delroute+0x50/0x5c
Jul 25 05:05:02 localhost kernel: [<022ebb2c>]
inet_rtm_delroute+0x0/0x5c
Jul 25 05:05:02 localhost kernel: [<022b1f79>]
rtnetlink_rcv+0x225/0x313
Jul 25 05:05:02 localhost kernel: [<022bce02>]
netlink_data_ready+0x14/0x43
Jul 25 05:05:02 localhost kernel: [<022bc607>]
netlink_sendskb+0x52/0x6b
Jul 25 05:05:02 localhost kernel: [<022bcc1e>]
netlink_sendmsg+0x252/0x261
Jul 25 05:05:02 localhost kernel: [<022a1959>]
sock_sendmsg+0xdb/0xf7
Jul 25 05:05:02 localhost kernel: [<022a1a90>]
sock_recvmsg+0xef/0x10c
Jul 25 05:05:02 localhost kernel: [<0211cf5b>]
autoremove_wake_function+0x0/0x2d
Jul 25 05:05:02 localhost kernel: [<0215e9d0>]
get_user_size+0x30/0x57
Jul 25 05:05:02 localhost kernel: [<022a7176>]
verify_iovec+0x3e/0x71
Jul 25 05:05:02 localhost kernel: [<022a300b>]
sys_sendmsg+0x143/0x191
Jul 25 05:05:02 localhost kernel: [<0215e45f>]
rw_vm+0x3f7/0x482
Jul 25 05:05:02 localhost kernel: [<0215ea20>]
put_user_size+0x29/0x2d
Jul 25 05:05:02 localhost kernel: [<02170bc9>]
cp_new_stat64+0xf5/0x107
Jul 25 05:05:02 localhost kernel: [<02151de2>]
follow_page_pfn+0xec/0xfd
Jul 25 05:05:02 localhost kernel: [<0215e45f>]
rw_vm+0x3f7/0x482
Jul 25 05:05:02 localhost kernel: [<022a3398>]
sys_socketcall+0x160/0x179
Jul 25 05:05:02 localhost kernel: Code: <3>Debug:
sleeping function called from invalid context at
include/linux/rwsem.h:43
Jul 25 05:05:02 localhost kernel:
in_atomic():0[expected: 0], irqs_disabled():1
Jul 25 05:05:02 localhost kernel: [<0211c8b9>]
__might_sleep+0x7d/0x88
Jul 25 05:05:02 localhost kernel: [<0215e27e>]
rw_vm+0x216/0x482
Jul 25 05:05:02 localhost kernel: [<022ec123>]
fib_release_info+0x47/0xac
Jul 25 05:05:02 localhost kernel: [<022ec123>]
fib_release_info+0x47/0xac
Jul 25 05:05:02 localhost kernel: [<0215e9d0>]
get_user_size+0x30/0x57
Jul 25 05:05:02 localhost kernel: [<022ec123>]
fib_release_info+0x47/0xac
Jul 25 05:05:02 localhost kernel: [<0210682b>]
show_registers+0x109/0x15e
Jul 25 05:05:02 localhost kernel: [<02106a2f>]
die+0x14a/0x241
Jul 25 05:05:02 localhost kernel: [<0211937e>]
do_page_fault+0x0/0x511
Jul 25 05:05:02 localhost kernel: [<0211937e>]
do_page_fault+0x0/0x511
Jul 25 05:05:02 localhost kernel: [<02119733>]
do_page_fault+0x3b5/0x511
Jul 25 05:05:02 localhost kernel: [<022ec14e>]
fib_release_info+0x72/0xac
Jul 25 05:05:02 localhost kernel: [<0224fd89>]
cfq_set_request+0x33/0x6b
Jul 25 05:05:02 localhost kernel: [<0211ba03>]
__wake_up+0x8d/0xf2
Jul 25 05:05:02 localhost kernel: [<022bc91d>]
netlink_broadcast+0x1df/0x23b
Jul 25 05:05:02 localhost kernel: [<0211937e>]
do_page_fault+0x0/0x511
Jul 25 05:05:02 localhost kernel: [<022ec14e>]
fib_release_info+0x72/0xac
Jul 25 05:05:02 localhost kernel: [<022ee86b>]
fn_hash_delete+0x196/0x1c8
Jul 25 05:05:02 localhost kernel: [<022ebb7c>]
inet_rtm_delroute+0x50/0x5c
Jul 25 05:05:03 localhost kernel: [<022ebb2c>]
inet_rtm_delroute+0x0/0x5c
Jul 25 05:05:03 localhost kernel: [<022b1f79>]
rtnetlink_rcv+0x225/0x313
Jul 25 05:05:03 localhost kernel: [<022bce02>]
netlink_data_ready+0x14/0x43
Jul 25 05:05:03 localhost kernel: [<022bc607>]
netlink_sendskb+0x52/0x6b
Jul 25 05:05:03 localhost kernel: [<022bcc1e>]
netlink_sendmsg+0x252/0x261
Jul 25 05:05:03 localhost zebra: zebra shutdown
succeeded
Jul 25 05:05:03 localhost kernel: [<022a1959>]
sock_sendmsg+0xdb/0xf7
Jul 25 05:05:03 localhost kernel: [<022a1a90>]
sock_recvmsg+0xef/0x10c
Jul 25 05:05:03 localhost kernel: [<0211cf5b>]
autoremove_wake_function+0x0/0x2d
Jul 25 05:05:03 localhost kernel: [<0215e9d0>]
get_user_size+0x30/0x57
Jul 25 05:05:03 localhost kernel: [<022a7176>]
verify_iovec+0x3e/0x71
Jul 25 05:05:03 localhost kernel: [<022a300b>]
sys_sendmsg+0x143/0x191
Jul 25 05:05:03 localhost kernel: [<0215e45f>]
rw_vm+0x3f7/0x482
Jul 25 05:05:03 localhost kernel: [<0215ea20>]
put_user_size+0x29/0x2d
Jul 25 05:05:03 localhost kernel: [<02170bc9>]
cp_new_stat64+0xf5/0x107
Jul 25 05:05:03 localhost kernel: [<02151de2>]
follow_page_pfn+0xec/0xfd
Jul 25 05:05:03 localhost kernel: [<0215e45f>]
rw_vm+0x3f7/0x482
Jul 25 05:05:03 localhost kernel: [<022a3398>]
sys_socketcall+0x160/0x179
Jul 25 05:05:03 localhost kernel: Bad EIP value.
Jul 25 05:07:25 localhost zebra: zebra shutdown failed
Jul 25 05:07:30 localhost bgpd: bgpd shutdown
succeeded
6. service zebra stop, service zebra restart? :)
7. Linux software router acting also as a gateway for
about 200 computers (256/512 Kbps (CIR/MIR))
7.1. Gnu C 3.4.2
Gnu make 3.80
binutils 2.15.92.0.2
util-linux 2.12a
mount 2.12a
module-init-tools 3.1-pre5
e2fsprogs 1.35
reiserfsprogs line
reiser4progs line
pcmcia-cs 3.2.7
quota-tools 3.12.
PPP 2.4.2
isdn4k-utils 3.3
nfs-utils 1.0.6
Linux C Library 2.3.3
Dynamic linker (ldd) 2.3.3
Procps 3.2.3
Net-tools 1.60
Kbd 1.12
Sh-utils 5.2.1
Modules Loaded iptable_filter autofs4 i2c_dev
i2c_core sunrpc md5 ipv6 iptable_nat ip_conntrack
ip_tables dm_mod 8139too mii 3c59x ext3 jbd

7.2. processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Celeron(R) CPU 2.00GHz
stepping : 7
cpu MHz : 1992.767
cache size : 128 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8
apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx
fxsr sse sse2 ss ht tm pbe cid
bogomips : 3932.16

Please notice that i encountered this error on a P3 @
700 Mhz and Athlon XP@ 2000 Ghz

7.3.iptable_filter 2753 0 - Live 0x1281d000
autofs4 24005 0 - Live 0x12902000
i2c_dev 10433 0 - Live 0x128ec000
i2c_core 22081 1 i2c_dev, Live 0x1290a000
sunrpc 160421 1 - Live 0x12982000
md5 4033 1 - Live 0x12882000
ipv6 232577 18 - Live 0x12948000
iptable_nat 23045 1 - Live 0x128fb000
ip_conntrack 40693 1 iptable_nat, Live 0x128f0000
ip_tables 16193 2 iptable_filter,iptable_nat, Live
0x12861000
dm_mod 54741 0 - Live 0x12873000
8139too 26305 0 - Live 0x1286b000
mii 4673 1 8139too, Live 0x12815000
3c59x 36585 0 - Live 0x1281f000
ext3 116809 1 - Live 0x12884000
jbd 74969 1 ext3, Live 0x1282b000

7.5.
00:00.0 Host bridge: Intel Corp. 82845 845 (Brookdale)
Chipset Host Bridge (rev 11)
Subsystem: Quantum Designs (H.K.) Inc: Unknown
device 5628
Control: I/O- Mem+ BusMaster+ SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr-
DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
Latency: 0
Region 0: Memory at d0000000 (32-bit,
prefetchable) [size=128M]
Capabilities: [e4] Vendor Specific Information
Capabilities: [a0] AGP version 2.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+
ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP-
GART64- 64bit- FW- Rate=<none>

00:01.0 PCI bridge: Intel Corp. 82845 845 (Brookdale)
Chipset AGP Bridge (rev 11) (prog-if 00 [Normal
decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr-
DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 64
Bus: primary=00, secondary=01, subordinate=01,
sec-latency=32
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: dc000000-ddffffff
Prefetchable memory behind bridge:
d8000000-dbffffff
Secondary status: 66Mhz+ FastB2B+ ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA+ VGA+ MAbort-
>Reset- FastB2B-

00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev
82) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr-
DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR+
Latency: 0
Bus: primary=00, secondary=02, subordinate=02,
sec-latency=32
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: de000000-dfffffff
Prefetchable memory behind bridge:
fff00000-000fffff
Secondary status: 66Mhz- FastB2B+ ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort-
>Reset- FastB2B-

00:1f.0 ISA bridge: Intel Corp. 82801DB/DBL
(ICH4/ICH4-L) LPC Interface Bridge (rev 02)
Control: I/O+ Mem+ BusMaster+ SpecCycle+
MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0

00:1f.1 IDE interface: Intel Corp. 82801DB (ICH4) IDE
Controller (rev 02) (prog-if 8a [Master SecP PriP])
Subsystem: Intel Corp.: Unknown device 24c2
Control: I/O+ Mem+ BusMaster+ SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 4
Region 0: I/O ports at <unassigned>
Region 1: I/O ports at <unassigned>
Region 2: I/O ports at <unassigned>
Region 3: I/O ports at <unassigned>
Region 4: I/O ports at f000 [size=16]
Region 5: Memory at 10000000 (32-bit,
non-prefetchable) [size=1K]

00:1f.3 SMBus: Intel Corp. 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 02)
Subsystem: Intel Corp.: Unknown device 24c2
Control: I/O+ Mem- BusMaster- SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin B routed to IRQ 7
Region 4: I/O ports at 5000 [size=32]

01:00.0 VGA compatible controller: nVidia Corporation
NV18 [GeForce4 MX 4000 AGP 8x] (rev c1) (prog-if 00
[VGA])
Subsystem: Giga-byte Technology: Unknown
device 310a
Control: I/O+ Mem+ BusMaster+ SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 5
Region 0: Memory at dc000000 (32-bit,
non-prefetchable) [size=16M]
Region 1: Memory at d8000000 (32-bit,
prefetchable) [size=64M]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI- D1- D2-
AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0
PME-
Capabilities: [44] AGP version 3.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA-
ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP-
GART64- 64bit- FW- Rate=<none>

02:0a.0 Ethernet controller: Realtek Semiconductor
Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd.
RT8139
Control: I/O+ Mem+ BusMaster+ SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (8000ns min, 16000ns max)
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at c000 [size=256]
Region 1: Memory at df000000 (32-bit,
non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+
AuxCurrent=375mA PME(D0-,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0
PME-

02:0d.0 Ethernet controller: 3Com Corporation 3c905
100BaseTX [Boomerang]
Control: I/O+ Mem+ BusMaster+ SpecCycle-
MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr-
DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (750ns min, 2000ns max)
Interrupt: pin A routed to IRQ 12
Region 0: I/O ports at c400 [size=64]

7.6. None scsi devices on this computer

I guess it is important to mention the quagga version
currently installed, quagga-0.97.0-1(from FC3 RPM).

I also worked successfully using zebra/quagga on
redhats 9.0 default kernel and after that on its
kernel.x.x.x.rpm that i took from updates.redhat.com
with different versions/packages of quagga/zebra and
it worked great.

Best regards,

Surugiu Iulian

NOC supervisor and lead administrator and programmer

www.hyperactiv.ro

omikorn@xxxxxxxxx

+40744204465

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Next message: Steven Rostedt: "Re: Can't use SYSFS for "Proprietry" driver modules !!!."
Previous message: Andrea Arcangeli: "Re: Mac mini sound woes"
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