2002-11-19 22:22:14

by Stephane Harnois

[permalink] [raw]
Subject: PROBLEM: bonding driver hang in 2.4.19

[1.] One line summary of the problem:

When booting 2.4.19 on a Dell power edge 4600, the system hang when loading the bonding module.

[2.] Full description of the problem/report:

The system has 2 E1000 PCI-X, 512 MB of memory. The sysrq key for reboot only print "resetting",
need to power cycle. This limit the information I can include...

[3.] Keywords (i.e., modules, networking, kernel): modules
[4.] Kernel version (from /proc/version): 2.4.19
[5.] Output of Oops.. message (if applicable) with symbolic information
resolved (see Documentation/oops-tracing.txt)
[6.] A small shell script or example program which triggers the
problem (if possible)
[7.] Environment

RedHat 7.1 with xfs install.

[7.1.] Software (add the output of the ver_linux script here)
[7.2.] Processor information (from /proc/cpuinfo): Dual P4 Xeon at 2.2 Ghz.
[7.3.] Module information (from /proc/modules):
[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)
[7.5.] PCI information ('lspci -vvv' as root)

00:00.0 Host bridge: ServerWorks CMIC-HE (rev 22)
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-

00:00.1 Host bridge: ServerWorks CMIC-HE
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-

00:00.2 Host bridge: ServerWorks CMIC-HE
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-

00:00.3 Host bridge: ServerWorks CMIC-HE
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-

00:04.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 08)
Subsystem: Dell Computer Corporation: Unknown device 0106
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 (2000ns min, 14000ns max), cache line size 08
Interrupt: pin A routed to IRQ 19
Region 0: Memory at fe202000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at ecc0 [size=64]
Region 2: Memory at fe000000 (32-bit, non-prefetchable) [size=1M]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-

00:06.0 SCSI storage controller: Adaptec AHA-2940U2/U2W / 7890/7891 (rev 01)
Subsystem: Dell Computer Corporation: Unknown device 0106
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 (9750ns min, 6250ns max), cache line size 08
Interrupt: pin A routed to IRQ 18
BIST result: 00
Region 0: I/O ports at e800 [disabled] [size=256]
Region 1: Memory at fe201000 (64-bit, non-prefetchable) [size=4K]
Expansion ROM at fe100000 [disabled] [size=128K]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:0e.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27) (prog-if 00 [VGA])
Subsystem: Dell Computer Corporation: Unknown device 0106
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 (2000ns min), cache line size 08
Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
Region 1: I/O ports at e400 [size=256]
Region 2: Memory at fe200000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [5c] 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-

00:0f.0 Host bridge: ServerWorks CSB5 South Bridge (rev 93)
Subsystem: ServerWorks CSB5 South Bridge
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

00:0f.1 IDE interface: ServerWorks CSB5 IDE Controller (rev 93) (prog-if 82 [Master PriP])
Subsystem: ServerWorks CSB5 IDE Controller
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
Region 0: I/O ports at 08c0 [size=8]
Region 1: I/O ports at 08c8 [size=4]
Region 2: I/O ports at 08d0 [size=8]
Region 3: I/O ports at 08d8 [size=4]
Region 4: I/O ports at 08b0 [size=16]

00:0f.3 ISA bridge: ServerWorks: Unknown device 0225
Subsystem: ServerWorks: Unknown device 0230
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

00:10.0 Host bridge: ServerWorks CIOB30 (rev 03)
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-
Capabilities: [60] PCI-X non-bridge device.
Command: DPERE- ERO- RBC=0 OST=4
Status: Bus=0 Dev=0 Func=0 64bit- 133MHz- SCD- USC-, DC=simple, DMMRBC=0, DMOST=0, DMCRS=0, RSCEM-

00:10.2 Host bridge: ServerWorks CIOB30 (rev 03)
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-
Capabilities: [60] PCI-X non-bridge device.
Command: DPERE- ERO- RBC=0 OST=4
Status: Bus=0 Dev=0 Func=0 64bit- 133MHz- SCD- USC-, DC=simple, DMMRBC=0, DMOST=0, DMCRS=0, RSCEM-

00:11.0 Host bridge: ServerWorks CIOB30 (rev 03)
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-
Capabilities: [60] PCI-X non-bridge device.
Command: DPERE- ERO- RBC=0 OST=4
Status: Bus=0 Dev=0 Func=0 64bit- 133MHz- SCD- USC-, DC=simple, DMMRBC=0, DMOST=0, DMCRS=0, RSCEM-

00:11.2 Host bridge: ServerWorks CIOB30 (rev 03)
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-
Capabilities: [60] PCI-X non-bridge device.
Command: DPERE- ERO- RBC=0 OST=4
Status: Bus=0 Dev=0 Func=0 64bit- 133MHz- SCD- USC-, DC=simple, DMMRBC=0, DMOST=0, DMCRS=0, RSCEM-

01:06.0 Ethernet controller: BROADCOM Corporation NetXtreme BCM5700 Gigabit Ethernet (rev 14)
Subsystem: Dell Computer Corporation NetXtreme 1000BaseTX
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 (16000ns min), cache line size 08
Interrupt: pin A routed to IRQ 22
Region 0: Memory at fcf00000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [40] PCI-X non-bridge device.
Command: DPERE- ERO+ RBC=0 OST=0
Status: Bus=0 Dev=0 Func=0 64bit- 133MHz- SCD- USC-, DC=simple, DMMRBC=0, DMOST=0, DMCRS=0, RSCEM-
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [50] Vital Product Data
Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable-
Address: ce81d8350950dc74 Data: b394

01:08.0 PCI bridge: Intel Corp.: Unknown device 0309 (rev 01) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32, cache line size 08
Bus: primary=01, secondary=02, subordinate=02, sec-latency=32
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fcd00000-fcefffff
Prefetchable memory behind bridge: fff00000-000fffff
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [68] 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-

02:06.0 SCSI storage controller: Adaptec AIC-7899P U160/m (rev 01)
Subsystem: Dell Computer Corporation: Unknown device 0106
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 (10000ns min, 6250ns max), cache line size 08
Interrupt: pin A routed to IRQ 20
BIST result: 00
Region 0: I/O ports at dc00 [disabled] [size=256]
Region 1: Memory at fcdff000 (64-bit, non-prefetchable) [size=4K]
Expansion ROM at fce00000 [disabled] [size=128K]
Capabilities: [dc] 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-

02:06.1 SCSI storage controller: Adaptec AIC-7899P U160/m (rev 01)
Subsystem: Dell Computer Corporation: Unknown device 0106
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 (10000ns min, 6250ns max), cache line size 08
Interrupt: pin B routed to IRQ 21
BIST result: 00
Region 0: I/O ports at d800 [disabled] [size=256]
Region 1: Memory at fcdfe000 (64-bit, non-prefetchable) [size=4K]
Expansion ROM at fce00000 [disabled] [size=128K]
Capabilities: [dc] 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-

03:06.0 PCI bridge: Intel Corp.: Unknown device b154 (prog-if 00 [Normal decode])
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, cache line size 08
Bus: primary=03, secondary=04, subordinate=04, sec-latency=32
I/O behind bridge: 0000a000-0000bfff
Memory behind bridge: fae00000-faffffff
Prefetchable memory behind bridge: 00000000fff00000-0000000000000000
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Bridge: PM- B3+

04:04.0 Fibre Channel: LSI Logic / Symbios Logic (formerly NCR) FC929 (rev 02)
Subsystem: Chip Express Corporation: Unknown device 0622
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: 72 (7500ns min, 2000ns max), cache line size 08
Interrupt: pin A routed to IRQ 27
Region 0: I/O ports at bc00 [size=256]
Region 1: Memory at faef0000 (64-bit, non-prefetchable) [size=64K]
Region 3: Memory at faee0000 (64-bit, non-prefetchable) [size=64K]
Expansion ROM at faf00000 [disabled] [size=1M]
Capabilities: [40] 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-

04:04.1 Fibre Channel: LSI Logic / Symbios Logic (formerly NCR) FC929 (rev 02)
Subsystem: Chip Express Corporation: Unknown device 0622
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: 72 (7500ns min, 2000ns max), cache line size 08
Interrupt: pin B routed to IRQ 28
Region 0: I/O ports at b800 [size=256]
Region 1: Memory at faed0000 (64-bit, non-prefetchable) [size=64K]
Region 3: Memory at faec0000 (64-bit, non-prefetchable) [size=64K]
Expansion ROM at faf00000 [disabled] [size=1M]
Capabilities: [40] 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-

04:06.0 Fibre Channel: LSI Logic / Symbios Logic (formerly NCR) FC929 (rev 02)
Subsystem: Chip Express Corporation: Unknown device 0622
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: 72 (7500ns min, 2000ns max), cache line size 08
Interrupt: pin A routed to IRQ 29
Region 0: I/O ports at b400 [size=256]
Region 1: Memory at faeb0000 (64-bit, non-prefetchable) [size=64K]
Region 3: Memory at faea0000 (64-bit, non-prefetchable) [size=64K]
Expansion ROM at faf00000 [disabled] [size=1M]
Capabilities: [40] 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-

04:06.1 Fibre Channel: LSI Logic / Symbios Logic (formerly NCR) FC929 (rev 02)
Subsystem: Chip Express Corporation: Unknown device 0622
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: 72 (7500ns min, 2000ns max), cache line size 08
Interrupt: pin B routed to IRQ 30
Region 0: I/O ports at b000 [size=256]
Region 1: Memory at fae90000 (64-bit, non-prefetchable) [size=64K]
Region 3: Memory at fae80000 (64-bit, non-prefetchable) [size=64K]
Expansion ROM at faf00000 [disabled] [size=1M]
Capabilities: [40] 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-

0e:06.0 Ethernet controller: Intel Corp. 82544EI Gigabit Ethernet Controller (rev 02)
Subsystem: Intel Corp. PRO/1000 XT Server Adapter
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: 64 (63750ns min), cache line size 08
Interrupt: pin A routed to IRQ 43
Region 0: Memory at f8b60000 (64-bit, non-prefetchable) [size=128K]
Region 2: Memory at f8b40000 (64-bit, non-prefetchable) [size=128K]
Region 4: I/O ports at 6ce0 [size=32]
Expansion ROM at f8a00000 [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [e4] PCI-X non-bridge device.
Command: DPERE- ERO+ RBC=0 OST=0
Status: Bus=0 Dev=0 Func=0 64bit- 133MHz- SCD- USC-, DC=simple, DMMRBC=0, DMOST=0, DMCRS=0, RSCEM-
Capabilities: [f0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
Address: 0000000000000000 Data: 0000

0e:08.0 Ethernet controller: Intel Corp. 82544EI Gigabit Ethernet Controller (rev 02)
Subsystem: Intel Corp. PRO/1000 XT Server Adapter
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: 64 (63750ns min), cache line size 08
Interrupt: pin A routed to IRQ 39
Region 0: Memory at f8b20000 (64-bit, non-prefetchable) [size=128K]
Region 2: Memory at f8b00000 (64-bit, non-prefetchable) [size=128K]
Region 4: I/O ports at 6cc0 [size=32]
Expansion ROM at f8a00000 [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [e4] PCI-X non-bridge device.
Command: DPERE- ERO+ RBC=0 OST=0
Status: Bus=0 Dev=0 Func=0 64bit- 133MHz- SCD- USC-, DC=simple, DMMRBC=0, DMOST=0, DMCRS=0, RSCEM-
Capabilities: [f0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
Address: 0000000000000000 Data: 0000



[7.6.] SCSI information (from /proc/scsi/scsi)
[7.7.] Other information that might be relevant to the problem
(please look in /proc and include all information that you
think to be relevant):
[X.] Other notes, patches, fixes, workarounds:

If I comment out the multicast line, it works.

dev->open = bond_open;
dev->stop = bond_close;
// dev->set_multicast_list = set_multicast_list;
dev->do_ioctl = bond_ioctl;


--
Stephane Harnois
Director of Engineering
Maximum Throughput Inc.
mailto:[email protected]
Phone: (514) 938-7407
Fax: (514) 938-7408





2002-11-21 17:20:16

by Arnaldo Carvalho de Melo

[permalink] [raw]
Subject: Re: PROBLEM: bonding driver hang in 2.4.19

Em Tue, Nov 19, 2002 at 05:11:30PM -0500, Stephane Harnois escreveu:
> [1.] One line summary of the problem:
>
> When booting 2.4.19 on a Dell power edge 4600, the system hang
> when loading the bonding module.

IIRC this is fixed in 2.4.20-pre and rcs