PROBLEM: network filesystems corrupts files

PROBLEM: network filesystems corrupts files

[Thomas Lenherr]

[-- Attachment #1: Type: text/plain, Size: 412 bytes --]

Hi,

I sent this problem already on the LKML and opened a bug on
bugme.osdl.org, but because I got no answer yet and I desperately need
it, I send it here too...
Please go to

http://bugme.osdl.org/show_bug.cgi?id=3608

to read about it...

I am very thankful for any answer, suggestions, ideas, solutions,
whatever...

Thanks _very_ much too anybody who gave me a bit of his time to read it...

Thomas Lenherr


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 256 bytes --]

Re: PROBLEM: network filesystems corrupts files

[Sonny Rao]

On Sat, Oct 23, 2004 at 03:39:09PM +0200, Thomas Lenherr wrote:
> Hi,
> 
> I sent this problem already on the LKML and opened a bug on
> bugme.osdl.org, but because I got no answer yet and I desperately need
> it, I send it here too...
> Please go to
> 
> http://bugme.osdl.org/show_bug.cgi?id=3608
> 
> to read about it...
> 
> I am very thankful for any answer, suggestions, ideas, solutions,
> whatever...
> 
> Thanks _very_ much too anybody who gave me a bit of his time to read it...
> 

Hi Thomas, I read your bug and tried to reproduce it but failed to do
so.  I was using a stock 2.6.9 kernel on the client machine and
2.6.9-rc4 on the server.  Additionally, I was using NFS v3 over TCP.

I think at this point there are too many possibilities to guess
what it might be.  Perhaps you could start trying older kernel
versions on your client starting with 2.6.9-rc4 and going backwards
until you find a kernel that doesn't exhibit the problem?

Sonny

Re: PROBLEM: network filesystems corrupts files

[Thomas Lenherr]

[-- Attachment #1: Type: text/plain, Size: 19116 bytes --]

Hi,
actually i updated the kernel from 2.6.5 to 2.6.8.1 to 2.6.9 _because_ 
of the bug...
so i didn't try all the versions in between, but i think as the bug was 
in all these versions
it is in all versions between too. So all I could do is going up to an 
even older kernel than
2.6.5... i think i'll install the original 2.6.0 and test it with this ...

here some more infos about my system:
dual xeon with hyperthreading
2gb ram

baal root # cat /proc/version
LLinux version 2.6.9-mh1 (root@baal.lenherr.name) (gcc version 3.3.2 
20031218 (Gentoo Linux 3.3.2-r5, propolice-3.3-7)) #2 SMP Wed Oct 20 
20:54:11 CEST 2004
(-mh1 is a bluetooth patch but I made my tests before i applied this patch)

baal root # cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Xeon(TM) CPU 3.06GHz
stepping        : 9
cpu MHz         : 3073.988
cache size      : 512 KB
physical id     : 0
siblings        : 2
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 sep mtrr pge 
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
bogomips        : 6062.08

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Xeon(TM) CPU 3.06GHz
stepping        : 9
cpu MHz         : 3073.988
cache size      : 512 KB
physical id     : 0
siblings        : 2
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 sep mtrr pge 
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
bogomips        : 6144.00

processor       : 2
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Xeon(TM) CPU 3.06GHz
stepping        : 9
cpu MHz         : 3073.988
cache size      : 512 KB
physical id     : 3
siblings        : 2
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 sep mtrr pge 
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
bogomips        : 6127.61

processor       : 3
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Xeon(TM) CPU 3.06GHz
stepping        : 9
cpu MHz         : 3073.988
cache size      : 512 KB
physical id     : 3
siblings        : 2
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 sep mtrr pge 
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
bogomips        : 6127.61

baal root # cat /proc/modules
fglrx 228444 16 - Live 0xf8c16000
vmnet 27696 8 - Live 0xf8c0e000
vmmon 152556 0 - Live 0xf8c8c000
ipv6 230400 14 - Live 0xf8c52000
w83627hf 27816 0 - Live 0xf8c06000
lm75 7580 0 - Live 0xf8bf9000
i2c_sensor 3584 2 w83627hf,lm75, Live 0xf8b66000
i2c_isa 2304 0 - Live 0xf8b68000
i2c_i801 7692 0 - Live 0xf8be2000
i2c_core 19584 5 w83627hf,lm75,i2c_sensor,i2c_isa,i2c_i801, Live 0xf8bf3000
rfcomm 25492 2 - Live 0xf8beb000
hidp 26112 4 - Live 0xf8b6f000
l2cap 21120 18 rfcomm,hidp, Live 0xf8b77000
rtc 10568 0 - Live 0xf8b6b000
ide_scsi 14468 0 - Live 0xf8ad0000
sg 29472 0 - Live 0xf8b4a000
sd_mod 12672 0 - Live 0xf8ad5000
uinput 5376 0 - Live 0xf8a79000
hci_usb 12544 4 - Live 0xf8acb000
bluetooth 41732 8 rfcomm,hidp,l2cap,hci_usb, Live 0xf8b34000
smbfs 62584 0 - Live 0xf8b23000
audio 45696 0 - Live 0xf8b16000
intel_agp 19744 1 - Live 0xf8a62000
agpgart 28460 1 intel_agp, Live 0xf8ac3000
ohci1394 31492 0 - Live 0xf8a13000
ieee1394 94772 1 ohci1394, Live 0xf8afd000
nfs 104620 1 - Live 0xf8ae2000
lockd 63688 2 nfs, Live 0xf8a68000
sunrpc 132708 4 nfs,lockd, Live 0xf8aa1000
appletalk 32848 0 - Live 0xf8a33000
psnap 3460 1 appletalk, Live 0xf8a03000
llc 6036 1 psnap, Live 0xf8a10000
e1000 80900 0 - Live 0xf8a3f000
ide_cd 38176 0 - Live 0xf8a1c000
sr_mod 13988 0 - Live 0xf89fe000
cdrom 37532 2 ide_cd,sr_mod, Live 0xf8a05000

baal root # cat /proc/ioports
0000-001f : dma1
0020-0021 : pic1
0040-0043 : timer0
0050-0053 : timer1
0060-006f : keyboard
0070-0077 : rtc
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
0290-0297 : w83627hf
02f8-02ff : serial
0376-0376 : ide1
0378-037a : parport0
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial
0400-047f : 0000:00:1f.0
  0400-0403 : PM1a_EVT_BLK
  0404-0405 : PM1a_CNT_BLK
  0408-040b : PM_TMR
  0428-042f : GPE0_BLK
0480-04bf : 0000:00:1f.0
0500-051f : 0000:00:1f.3
  0500-050f : i801-smbus
0cf8-0cff : PCI conf1
a000-afff : PCI Bus #01
  a000-a0ff : 0000:01:00.0
b000-bfff : PCI Bus #02
  b000-b01f : 0000:02:01.0
    b000-b01f : e1000
c000-c01f : 0000:00:1d.0
  c000-c01f : uhci_hcd
c400-c41f : 0000:00:1d.1
  c400-c41f : uhci_hcd
c800-c81f : 0000:00:1d.2
  c800-c81f : uhci_hcd
cc00-cc1f : 0000:00:1d.3
  cc00-cc1f : uhci_hcd
d400-d4ff : 0000:00:1f.5
  d400-d4ff : Intel ICH5
d800-d83f : 0000:00:1f.5
  d800-d83f : Intel ICH5
f000-f00f : 0000:00:1f.1
  f000-f007 : ide0
  f008-f00f : ide1

baal root # cat /proc/iomem
00000000-0009f7ff : System RAM
0009f800-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000ccfff : Video ROM
000d0000-000d0fff : Adapter ROM
000f0000-000fffff : System ROM
00100000-7fedffff : System RAM
  00100000-0038390b : Kernel code
  0038390c-0048ac7f : Kernel data
7fee0000-7fee2fff : ACPI Non-volatile Storage
7fee3000-7feeffff : ACPI Tables
7fef0000-7fefffff : reserved
7ff00000-7ff003ff : 0000:00:1f.1
d0000000-dfffffff : 0000:00:00.0
e0000000-efffffff : PCI Bus #01
  e0000000-e7ffffff : 0000:01:00.0
  e8000000-efffffff : 0000:01:00.1
f0000000-f1ffffff : PCI Bus #01
  f1000000-f100ffff : 0000:01:00.0
  f1010000-f101ffff : 0000:01:00.1
f2000000-f20fffff : PCI Bus #02
  f2000000-f201ffff : 0000:02:01.0
    f2000000-f201ffff : e1000
f2100000-f2103fff : 0000:03:03.0
f2104000-f21047ff : 0000:03:03.0
  f2104000-f21047ff : ohci1394
f2200000-f22003ff : 0000:00:1d.7
  f2200000-f22003ff : ehci_hcd
f2201000-f22011ff : 0000:00:1f.5
  f2201000-f22011ff : Intel ICH5
f2202000-f22020ff : 0000:00:1f.5
  f2202000-f22020ff : Intel ICH5
fec00000-ffffffff : reserved

baal root # lspci -vvv
00:00.0 Host bridge: Intel Corp. 82875P Memory Controller Hub (rev 02)
        Subsystem: Asustek Computer, Inc.: Unknown device 80f6
        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=256M]
        Capabilities: [e4] #09 [2106]
        Capabilities: [a0] AGP version 3.0
                Status: RQ=32 Iso- ArqSz=2 Cal=2 SBA+ ITACoh- GART64- 
HTrans- 64bit- FW+ AGP3+ Rate=x4,x8
                Command: RQ=1 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit- FW+ 
Rate=x8

00:01.0 PCI bridge: Intel Corp. 82875P Processor to AGP Controller (rev 
02) (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: 0000a000-0000afff
        Memory behind bridge: f0000000-f1ffffff
        Prefetchable memory behind bridge: e0000000-efffffff
        BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-

00:03.0 PCI bridge: Intel Corp. 82875P Processor to PCI to CSA Bridge 
(rev 02) (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: 32
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
        I/O behind bridge: 0000b000-0000bfff
        Memory behind bridge: f2000000-f20fffff
        Prefetchable memory behind bridge: fff00000-000fffff
        BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-

00:1d.0 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #1 
(rev 02) (prog-if 00 [UHCI])
        Subsystem: Asustek Computer, Inc. P4P800 Mainboard
        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 16
        Region 4: I/O ports at c000 [size=32]

00:1d.1 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #2 
(rev 02) (prog-if 00 [UHCI])
        Subsystem: Asustek Computer, Inc. P4P800 Mainboard
        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 B routed to IRQ 19
        Region 4: I/O ports at c400 [size=32]

00:1d.2 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #3 
(rev 02) (prog-if 00 [UHCI])
        Subsystem: Asustek Computer, Inc. P4P800 Mainboard
        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 C routed to IRQ 18
        Region 4: I/O ports at c800 [size=32]

00:1d.3 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #4 
(rev 02) (prog-if 00 [UHCI])
        Subsystem: Asustek Computer, Inc. P4P800 Mainboard
        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 16
        Region 4: I/O ports at cc00 [size=32]

00:1d.7 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB2 EHCI 
Controller (rev 02) (prog-if 20 [EHCI])
        Subsystem: Asustek Computer, Inc. P4P800 Mainboard
        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 D routed to IRQ 23
        Region 0: Memory at f2200000 (32-bit, non-prefetchable) [size=1K]
        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-

00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB/EB/ER Hub interface to PCI 
Bridge (rev c2) (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=03, subordinate=03, sec-latency=32
        I/O behind bridge: 0000f000-00000fff
        Memory behind bridge: f2100000-f21fffff
        Prefetchable memory behind bridge: fff00000-000fffff
        BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-

00:1f.0 ISA bridge: Intel Corp. 82801EB/ER (ICH5/ICH5R) LPC 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. 82801EB/ER (ICH5/ICH5R) Ultra ATA 100 
Storage Controller (rev 02) (prog-if 8a [Master SecP PriP])
        Subsystem: Asustek Computer, Inc. P4P800 Mainboard
        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 18
        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 7ff00000 (32-bit, non-prefetchable) [size=1K]

00:1f.3 SMBus: Intel Corp. 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
        Subsystem: Asustek Computer, Inc. P4P800 Mainboard
        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 17
        Region 4: I/O ports at 0500 [size=32]

00:1f.5 Multimedia audio controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) 
AC'97 Audio Controller (rev 02)
        Subsystem: Asustek Computer, Inc. P4P800 Mainboard
        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 B routed to IRQ 17
        Region 0: I/O ports at d400 [size=256]
        Region 1: I/O ports at d800 [size=64]
        Region 2: Memory at f2201000 (32-bit, non-prefetchable) [size=512]
        Region 3: Memory at f2202000 (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-

01:00.0 VGA compatible controller: ATI Technologies Inc Radeon R350 
[Radeon 9800] (prog-if 00 [VGA])
        Subsystem: ATI Technologies Inc: Unknown device 0002
        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: 255 (2000ns min), cache line size 08
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at e0000000 (32-bit, prefetchable) [size=128M]
        Region 1: I/O ports at a000 [size=256]
        Region 2: Memory at f1000000 (32-bit, non-prefetchable) [size=64K]
        Expansion ROM at <unassigned> [disabled] [size=128K]
        Capabilities: [58] AGP version 3.0
                Status: RQ=256 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- 
HTrans- 64bit- FW+ AGP3+ Rate=x4,x8
                Command: RQ=32 ArqSz=2 Cal=0 SBA+ AGP+ GART64- 64bit- 
FW+ Rate=x8
        Capabilities: [50] 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-

01:00.1 Display controller: ATI Technologies Inc Radeon R350 [Radeon 
9800] (Secondary)
        Subsystem: ATI Technologies Inc: Unknown device 0003
        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-
        Region 0: Memory at e8000000 (32-bit, prefetchable) [disabled] 
[size=128M]
        Region 1: Memory at f1010000 (32-bit, non-prefetchable) 
[disabled] [size=64K]
        Capabilities: [50] 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-

02:01.0 Ethernet controller: Intel Corp. 82547EI Gigabit Ethernet 
Controller (LOM)
        Subsystem: Asustek Computer, Inc.: Unknown device 80f7
        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 (63750ns min), cache line size 08
        Interrupt: pin A routed to IRQ 18
        Region 0: Memory at f2000000 (32-bit, non-prefetchable) [size=128K]
        Region 2: I/O ports at b000 [size=32]
        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-

03:03.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A 
IEEE-1394a-2000 Controller (PHY/Link) (prog-if 10 [OHCI])
        Subsystem: Texas Instruments: Unknown device 8003
        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, 1000ns max), cache line size 08
        Interrupt: pin A routed to IRQ 20
        Region 0: Memory at f2104000 (32-bit, non-prefetchable) [size=2K]
        Region 1: Memory at f2100000 (32-bit, non-prefetchable) [size=16K]
        Capabilities: [44] 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+

baal root # cat /proc/scsi/scsi
Attached devices:

Sincerly,
   Thomas

Sonny Rao wrote:

>On Sat, Oct 23, 2004 at 03:39:09PM +0200, Thomas Lenherr wrote:
>  
>
>>Hi,
>>
>>I sent this problem already on the LKML and opened a bug on
>>bugme.osdl.org, but because I got no answer yet and I desperately need
>>it, I send it here too...
>>Please go to
>>
>>http://bugme.osdl.org/show_bug.cgi?id=3608
>>
>>to read about it...
>>
>>I am very thankful for any answer, suggestions, ideas, solutions,
>>whatever...
>>
>>Thanks _very_ much too anybody who gave me a bit of his time to read it...
>>
>>    
>>
>
>Hi Thomas, I read your bug and tried to reproduce it but failed to do
>so.  I was using a stock 2.6.9 kernel on the client machine and
>2.6.9-rc4 on the server.  Additionally, I was using NFS v3 over TCP.
>
>I think at this point there are too many possibilities to guess
>what it might be.  Perhaps you could start trying older kernel
>versions on your client starting with 2.6.9-rc4 and going backwards
>until you find a kernel that doesn't exhibit the problem?
>
>Sonny
>
>
>
>-
>To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
>the body of a message to majordomo@vger.kernel.org
>More majordomo info at  http://vger.kernel.org/majordomo-info.html
>  
>

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 256 bytes --]

Re: PROBLEM: network filesystems corrupts files

[Thomas Lenherr]

[-- Attachment #1: Type: text/plain, Size: 1661 bytes --]

Hi,

ok I downgraded my kernel to 2.6.0 without any patches.
The problem with the network-filesystem was still there,
but it introduced a new one: under 2.6.0 the same happenend
even when reading from a locally mounted cdrom!
i.e.:
mount /mnt/cdrom
cd /mnt/cdrom/
md5sum -c {path}/sums.md5 # result: some failed
md5sum -c {path}/sums.md5 # result: all ok

god i'm worried about my system, please help me....

Thanks in advance
  Thomas Lenherr


Sonny Rao wrote:

>On Sat, Oct 23, 2004 at 03:39:09PM +0200, Thomas Lenherr wrote:
>  
>
>>Hi,
>>
>>I sent this problem already on the LKML and opened a bug on
>>bugme.osdl.org, but because I got no answer yet and I desperately need
>>it, I send it here too...
>>Please go to
>>
>>http://bugme.osdl.org/show_bug.cgi?id=3608
>>
>>to read about it...
>>
>>I am very thankful for any answer, suggestions, ideas, solutions,
>>whatever...
>>
>>Thanks _very_ much too anybody who gave me a bit of his time to read it...
>>
>>    
>>
>
>Hi Thomas, I read your bug and tried to reproduce it but failed to do
>so.  I was using a stock 2.6.9 kernel on the client machine and
>2.6.9-rc4 on the server.  Additionally, I was using NFS v3 over TCP.
>
>I think at this point there are too many possibilities to guess
>what it might be.  Perhaps you could start trying older kernel
>versions on your client starting with 2.6.9-rc4 and going backwards
>until you find a kernel that doesn't exhibit the problem?
>
>Sonny
>
>
>
>-
>To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
>the body of a message to majordomo@vger.kernel.org
>More majordomo info at  http://vger.kernel.org/majordomo-info.html
>  
>

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 256 bytes --]

Re: PROBLEM: network filesystems corrupts files

[Sonny Rao]

On Sat, Oct 23, 2004 at 09:55:28PM +0200, Thomas Lenherr wrote:
> Hi,
> 
> ok I downgraded my kernel to 2.6.0 without any patches.
> The problem with the network-filesystem was still there,
> but it introduced a new one: under 2.6.0 the same happenend
> even when reading from a locally mounted cdrom!
> i.e.:
> mount /mnt/cdrom
> cd /mnt/cdrom/
> md5sum -c {path}/sums.md5 # result: some failed
> md5sum -c {path}/sums.md5 # result: all ok
> 
> god i'm worried about my system, please help me....
> 
> Thanks in advance
>  Thomas Lenherr

Hmm, this sounds like a hardware issue.  Have you tried memtest86?

Sonny

Re: PROBLEM: network filesystems corrupts files

[Thomas Lenherr]

Sonny Rao wrote:

>On Sat, Oct 23, 2004 at 09:55:28PM +0200, Thomas Lenherr wrote:
>  
>
>>Hi,
>>
>>ok I downgraded my kernel to 2.6.0 without any patches.
>>The problem with the network-filesystem was still there,
>>but it introduced a new one: under 2.6.0 the same happenend
>>even when reading from a locally mounted cdrom!
>>i.e.:
>>mount /mnt/cdrom
>>cd /mnt/cdrom/
>>md5sum -c {path}/sums.md5 # result: some failed
>>md5sum -c {path}/sums.md5 # result: all ok
>>
>>god i'm worried about my system, please help me....
>>
>>Thanks in advance
>> Thomas Lenherr
>>    
>>
>
>Hmm, this sounds like a hardware issue.  Have you tried memtest86?
>
>Sonny
>
Yes I did, a few times, everything seems ok :(

Thomas

Re: PROBLEM: network filesystems corrupts files

[Jamie Lokier]

I had a similar problem on a new x86 board recently, with 2.6.81
kernels, 2.4.20-31.9 kernels (Red Hat 9), and NFS, and memtest86
showed no erors.

It took a few days to discover that my problem was a hardware IDE
problem, and not a network problem.  Bit errors appeared when I copied
remote files onto the local disk and then ran md5sum on them.  When
the files were large enough, bit errors silently introduced by the IDE
interface resulted in MD5 mismatches.

The answer on this board case was to disable IDE DMA.

-- Jamie