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Subject[Bug 1054] New: loading iptables modules kill raid5 kernel thread
http://bugme.osdl.org/show_bug.cgi?id=1054

Summary: loading iptables modules kill raid5 kernel thread
Kernel Version: 2.4.22-pre10
Status: NEW
Severity: normal
Owner: laforge@gnumonks.org
Submitter: temnota@kmv.ru


Distribution: RedHat 7.1
Hardware Environment: HP NetServer 5/LS

$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 5
model : 2
model name : Pentium 75 - 200
stepping : 5
fdiv_bug : no
hlt_bug : no
f00f_bug : yes
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse msr mce cx8 apic
bogomips : 53.04

processor : 1
vendor_id : GenuineIntel
cpu family : 5
model : 2
model name : Pentium 75 - 200
stepping : 5
fdiv_bug : no
hlt_bug : no
f00f_bug : yes
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse msr mce cx8 apic
bogomips : 53.24

$ lspci -v
00:00.0 Host bridge: Intel Corporation 82452KX/GX [Orion] (rev 02)
Flags: bus master, medium devsel, latency 6

00:0d.0 Ethernet controller: Intel Corporation 82557 [Ethernet Pro 100] (rev
01) Flags: bus master, medium devsel, latency 66, IRQ 10
Memory at ffe7f000 (32-bit, prefetchable) [size=4K]
I/O ports at ef80 [size=32]
Memory at ff600000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at <unassigned> [disabled] [size=1M]

00:0e.0 Non-VGA unclassified device: Intel Corporation 82375EB (rev 05)
Flags: bus master, medium devsel, latency 248

00:0f.0 Class ff00: Intel Corporation: Unknown device 0008
Subsystem: Unknown device ec08:ffe7
Flags: fast devsel
Memory at ffe7ec00 (32-bit, prefetchable) [size=1K]
Memory at 12000000 (32-bit, prefetchable) [size=1K]
Memory at 12000400 (32-bit, prefetchable) [size=1K]
Memory at 12000800 (32-bit, prefetchable) [size=1K]
Memory at 12000c00 (32-bit, prefetchable) [size=1K]
Memory at 12001000 (32-bit, prefetchable) [size=1K]
Expansion ROM at fffff800 [disabled] [size=2K]

01:00.0 Host bridge: Intel Corporation 82452KX/GX [Orion] (rev 02)
Flags: bus master, medium devsel, latency 6

01:0c.0 Ethernet controller: Intel Corporation 82557 [Ethernet Pro 100] (rev 08)
Subsystem: Intel Corporation EtherExpress PRO/100+ Management Adapter
Flags: bus master, medium devsel, latency 66, IRQ 9
Memory at ffcfe000 (32-bit, non-prefetchable) [size=4K]
I/O ports at f8c0 [size=64]
Memory at ffb00000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at <unassigned> [disabled] [size=1M]
Capabilities: [dc] Power Management version 2

01:0d.0 SCSI storage controller: Adaptec AHA-294x / AIC-7870 (rev 03)
Flags: bus master, medium devsel, latency 64, IRQ 11
I/O ports at fc00 [disabled] [size=256]
Memory at ffcff000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at <unassigned> [disabled] [size=64K]

01:0e.0 SCSI storage controller: Adaptec AHA-294x / AIC-7870 (rev 03)
Flags: bus master, medium devsel, latency 64, IRQ 9
I/O ports at f400 [disabled] [size=256]
Memory at ffcfd000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at <unassigned> [disabled] [size=64K]

$ cat /proc/modules

ipt_TOS 1008 0
ipt_tos 448 0 (unused)
iptable_mangle 2144 1
ipt_TCPMSS 2336 3
ipt_tcpmss 800 0 (unused)
ipt_LOG 3568 20
ipt_MARK 720 0 (unused)
ipt_REDIRECT 768 0 (unused)
iptable_nat 23264 1 [ipt_REDIRECT]
ipt_REJECT 3136 0 (unused)
ipt_mac 656 12
ipt_mark 464 0 (unused)
ipt_multiport 640 0 (unused)
iptable_filter 1712 1
ipt_state 576 8
ipt_limit 1216 171
ip_conntrack_ftp 4512 0 (unused)
ip_conntrack 29664 3 [ipt_REDIRECT iptable_nat ipt_state ip_conntrack_ftp]
ip_tables 15008 18 [ipt_TOS ipt_tos iptable_mangle ipt_TCPMSS ipt_tcpmss ipt_LOG ipt_MARK ipt_REDIRECT iptable_nat ipt_REJECT ipt_mac ipt_mark ipt_multiport iptable_filter ipt_state ipt_limit]

Software Environment:
Software Raid5 + iptables modules

Problem Description:
When raid recovery discs (after unclean shutdown), loading iptables modules
kill radi5 kernel thread

Unable to handle kernel NULL pointer dereference at virtual address
00000212
c102c04d
*pde = 00000000
Oops: 0002
CPU: 1
EIP: 0010:[<c102c04d>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010082
eax: d0355bb3 ebx: 00000001 ecx: c102c01c edx: 00000212
esi: 00000019 edi: d1af3000 ebp: d1af4000 esp: d1d95dec
ds: 0018 es: 0018 ss: 0018
Process raid5d (pid: 13, stackpage=d1d95000)
Stack: c0113b18 00000212 d1af3cc0 c010ca6a d1af3cc0 d1af5cc0 d1af4cc0 00000019
d1af3000 d1af4000 0080e85d 00000018 00000018 fffffffb c01fb83a 00000010
00000282 00000003 d1af6c00 c01fbef7 00001000 d1af4000 d1af3000 d1af5000
Call Trace: [<c0113b18>] [<c010ca6a>] [<c01fb83a>] [<c01fbef7>] [<c01f734e>]
[<c01b1261>] [<c01f82e6>] [<c01bb224>] [<c01f8ae1>] [<c01f8a10>] [<c0200515>]
[<c0105883>] [<c0200370>]
Code: c0 02 c1 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

>> EIP; c102c04d <_end+cae92d/124d9940> <=====
Trace; c0113b18 <smp_call_function_interrupt+28/3e>
Trace; c010ca6a <call_call_function_interrupt+5/b>
Trace; c01fb83a <xor_8regs_3+3a/70>
Trace; c01fbef7 <xor_block+87/b0>
Trace; c01f734e <compute_block+8e/d0>
Trace; c01b1261 <generic_make_request+d1/130>
Trace; c01f82e6 <handle_stripe+af6/de0>
Trace; c01bb224 <scsi_dispatch_cmd+144/520>
Trace; c01f8ae1 <raid5d+d1/1e0>
Trace; c01f8a10 <raid5d+0/1e0>
Trace; c0200515 <md_thread+1a5/2a0>
Trace; c0105883 <arch_kernel_thread+23/30>
Trace; c0200370 <md_thread+0/2a0>
Code; c102c04d <_end+cae92d/124d9940>
00000000 <_EIP>:
Code; c102c04d <_end+cae92d/124d9940>
0: c0 02 c1 rolb $0xc1,(%edx)

Unable to handle kernel NULL pointer dereference at virtual address 00000217
c102c04d
*pde = 00000000
Oops: 0002
CPU: 0
EIP: 0010:[<c102c04d>] Not tainted
EFLAGS: 00010082
eax: cb189bb3 ebx: 00000001 ecx: c102c01c edx: 00000217
esi: 00000021 edi: d1c51000 ebp: d1c52000 esp: d1d95dec
ds: 0018 es: 0018 ss: 0018
Process raid5d (pid: 13, stackpage=d1d95000)
Stack: c0113b18 00000217 d1c51bc0 c010ca6a d1c51bc0 d1c53be0 d1c52bc0 00000021
d1c51000 d1c52000 807944a9 00000018 00000018 fffffffb c01fb85b 00000010
00000286 00000003 d1c54c00 c01fbef7 00001000 d1c52000 d1c51000 d1c53000
Call Trace: [<c0113b18>] [<c010ca6a>] [<c01fb85b>] [<c01fbef7>] [<c01f734e>]
[<c01b1261>] [<c01f82e6>] [<c01bb224>] [<c01f8ae1>] [<c01f8a10>] [<c0200515>]
[<c0105883>] [<c0200370>]
Code: c0 02 c1 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

>> EIP; c102c04d <_end+cae92d/124d9940> <=====
Trace; c0113b18 <smp_call_function_interrupt+28/3e>
Trace; c010ca6a <call_call_function_interrupt+5/b>
Trace; c01fb85b <xor_8regs_3+5b/70>
Trace; c01fbef7 <xor_block+87/b0>
Trace; c01f734e <compute_block+8e/d0>
Trace; c01b1261 <generic_make_request+d1/130>
Trace; c01f82e6 <handle_stripe+af6/de0>
Trace; c01bb224 <scsi_dispatch_cmd+144/520>
Trace; c01f8ae1 <raid5d+d1/1e0>
Trace; c01f8a10 <raid5d+0/1e0>
Trace; c0200515 <md_thread+1a5/2a0>
Trace; c0105883 <arch_kernel_thread+23/30>
Trace; c0200370 <md_thread+0/2a0>
Code; c102c04d <_end+cae92d/124d9940>
00000000 <_EIP>:
Code; c102c04d <_end+cae92d/124d9940>
0: c0 02 c1 rolb $0xc1,(%edx)

Steps to reproduce:

raidsetfaulty /dev/md0 /dev/sde1
raidhotremove /dev/md0 /dev/sde1
raidhotadd /dev/md0 /dev/sde1

and load iptables modules. OOPS


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