Fat32 with samba

Thu Jun 3 01:29:15 GMT 2004

Is there a known problem in 5.2.1 while exporting Fat32 via samba?
Something like kern/39043?

I wrote a long question on freebsd-questions but I had no answers. No luck
with the samba list either. Am I the only one seeing this? I would think a
file corruption issue would at least receive a nod... :( I'd hate to abandon
freebsd for this project, but I have no other option since I can't juggle
the disk space to convert this drive to UFS (I don't suppose there is an
in-place convert?)

Help? 

Here's the message I posted:

----

Hi,

Is there any status on bug kern/39043? I think I'm experiencing the same
problem, but under 5.2.1. The bug was written against 4.6 but it does not
seem to have been closed for 2 years (if I'm reading it correctly.. I'm not
very familiar with the bug database). But I'm asking here as opposed to the
samba mailing list since the bug report seems to be pointing the finger at a
kernel bug.

Symptoms:

I installed FreeBSD 5.2.1 then samba 3.0.4 from source (I was unable to
install the samba 3.0.x from ports, it keeps failing with ec = -1). 

By default I was getting the following message in /var/log/messages:

May 30 14:24:21 mbox kernel: kern.maxpipekva exceeded, please see

tuning(7)

so I added:

kern.ipc.maxpipekva=16222976

to the defaults. Don't know what the value should've been, but at least this
fixes the message. I attached an older 80GB drive as /library. 

I created 10 files in notepad on windows XP Pro. They are just text files,
with the sequence 0-9 repeated six times per line, then repeated for about
200,000 lines, giving me 10 identical files of about 16 mb. Exported my fat
drive as /fat, and my /tmp drive as /ufs. Ran a copy from windows:

copy testfile* \\computername\fat <file://computername/fat> 

and

copy testfile* \\computername\ufs <file://computername/ufs> 

in my tmp, the ten files were identical. on my fat drive, none of the ten
files were identical to each other. The size was the same, but the data
inside was scrambled, after a few correct blocks at the beginning. Using the
/V flag on xcopy didn't signal any errors, but doing an fc /b after the copy
from the windows machine showed a lot of differences. There were no errors
while copyin to the ufs share, but coping to the fat share I get tons of the
following in the samba.machine log:

[2004/06/02 00:41:53, 0] locking/posix.c:posix_fcntl_lock(657)

posix_fcntl_lock: WARNING: lock request at offset 0, length
92233720368547758\

08 returned

[2004/06/02 00:41:53, 0] locking/posix.c:posix_fcntl_lock(658)

an Invalid argument error. This can happen when using 64 bit lock offsets

[2004/06/02 00:41:53, 0] locking/posix.c:posix_fcntl_lock(659)

on 32 bit NFS mounted file systems.

[2004/06/02 00:41:53, 0] locking/posix.c:posix_fcntl_lock(673)

Count greater than 31 bits - retrying with 31 bit truncated length.

[2004/06/02 00:41:54, 0] locking/posix.c:posix_fcntl_lock(657)

posix_fcntl_lock: WARNING: lock request at offset 0, length 16580 returned

[2004/06/02 00:41:54, 0] locking/posix.c:posix_fcntl_lock(658)

an Invalid argument error. This can happen when using 64 bit lock offsets

[2004/06/02 00:41:54, 0] locking/posix.c:posix_fcntl_lock(659)

on 32 bit NFS mounted file systems.

[2004/06/02 00:41:54, 0] locking/posix.c:posix_fcntl_lock(657)

posix_fcntl_lock: WARNING: lock request at offset 16580, length 16580
returne\ D

Note that I'm not using NFS at all. This is a 32-bit machine. NFSCLIENt and
NFSSERver is commented out in the kernel config file.

I am also curious to know if this bug would affect updates to files, or just
copies. Some of the files were updated over the share. I'm not sure if I
trust the updates, but I can't visually inspect 60GB of data looking for
anomalies.

TIA...

FWIW, my fstab and dmesg follows. The drive passed rom-based diagnostics.

/etc/fstab:

# Device Mountpoint FStype Options Dump

Pass#

/dev/ad0s1b none swap sw 0 0

/dev/ad0s1a / ufs rw 1 1

/dev/ad0s1d /tmp ufs rw 2 2

/dev/ad0s1f /usr ufs rw 2 2

/dev/ad0s1e /var ufs rw 2 2

/dev/acd0 /cdrom cd9660 ro,noauto 0 0

/dev/ad1s1 /library msdosfs rw,-u=1012,-g=1012

\

2 2

Copyright (c) 1992-2004 The FreeBSD Project.

Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994

FreeBSD 5.2.1-RELEASE #0: Sat May 29 09:11:27 CDT 2004

root at testbox:/usr/obj/usr/src/sys/mbox

Preloaded elf kernel "/boot/kernel/kernel" at 0xc0815000.

Timecounter "i8254" frequency 1193182 Hz quality 0

CPU: Intel Pentium III (863.87-MHz 686-class CPU)

Origin = "GenuineIntel" Id = 0x683 Stepping = 3

Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,

CMOV,PAT,PSE36,MMX,FXSR,SSE>

real memory = 267386880 (255 MB)

avail memory = 250081280 (238 MB)

MPTable: <COMPAQ Deskpro >

ioapic0: Changing APIC ID to 8

ioapic0: Assuming intbase of 0

ioapic0 <Version 2.0> irqs 0-23 on motherboard Pentium Pro MTRR support
enabled

npx0: [FAST]

npx0: <math processor> on motherboard

npx0: INT 16 interface

pcibios: BIOS version 2.10

Using $PIR table, 10 entries at 0xc00e8810

pcib0: <MPTable Host-PCI bridge> at pcibus 0 on motherboard

pci0: <PCI bus> on pcib0

pcib0: slot 2 INTA routed to irq 16

pcib0: slot 31 INTC routed to irq 23

pcib0: slot 31 INTB routed to irq 17

agp0: <Intel 82815 (i815 GMCH) SVGA controller> mem
0x40500000-0x4057ffff,0x44000000-0x47ffffff irq 16 at device 2.0 on pci0

pcib1: <MPTable PCI-PCI bridge> at device 30.0 on pci0

pci2: <PCI bus> on pcib1

pcib1: slot 8 INTA routed to irq 20

pcib1: slot 11 INTA routed to irq 22

fxp0: <Intel 82801BA/CAM (ICH2/3) Pro/100 Ethernet> port 0x1000-0x103f mem
0x40100000-0x40100fff irq 20 at device 8.0 on pci2

fxp0: Ethernet address 00:02:a5:00:b2:ad

miibus0: <MII bus> on fxp0

inphy0: <i82562EM 10/100 media interface> on miibus0

inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

fxp1: <Intel 82559 Pro/100 Ethernet> port 0x1040-0x107f mem
0x40000000-0x400fffff,0x40200000-0x40200fff irq 22 at device 11.0 on pci2

fxp1: Ethernet address 00:d0:b7:b1:59:ab

miibus1: <MII bus> on fxp1

inphy1: <i82555 10/100 media interface> on miibus1

inphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

isab0: <PCI-ISA bridge> at device 31.0 on pci0

isa0: <ISA bus> on isab0

atapci0: <Intel ICH2 UDMA100 controller> port 0x2460-0x246f at device 31.1
on pci0

ata0: at 0x1f0 irq 14 on atapci0

ata0: [MPSAFE]

ata1: at 0x170 irq 15 on atapci0

ata1: [MPSAFE]

uhci0: <Intel 82801BA/BAM (ICH2) USB controller USB-B> port 0x2440-0x245f
irq 23 at device 31.4 on pci0

usb0: <Intel 82801BA/BAM (ICH2) USB controller USB-B> on uhci0

usb0: USB revision 1.0

uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1

uhub0: 2 ports with 2 removable, self powered

pcm0: <Intel ICH2 (82801BA)> port 0x2400-0x243f,0x2000-0x20ff irq 17 at
device 31.5 on pci0

pcm0: <Analog Devices AD1885 AC97 Codec>

orm0: <Option ROMs> at iomem 0xe0000-0xeffff,0xc0000-0xc7fff on isa0
pmtimer0 on isa0

atkbdc0: <Keyboard controller (i8042)> at port 0x64,0x60 on isa0

atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0 kbd0 at atkbd0

psm0: <PS/2 Mouse> irq 12 on atkbdc0

psm0: model Generic PS/2 mouse, device ID 0

fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> at port

0x3f7,0x3f0-0x3f5 irq 6 drq 2 on isa0

fdc0: FIFO enabled, 8 bytes threshold

fd0: <1440-KB 3.5" drive> on fdc0 drive 0

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 16/16/13 bytes threshold

ppbus0: <Parallel port bus> on ppc0

plip0: <PLIP network interface> on ppbus0

lpt0: <Printer> on ppbus0

lpt0: Interrupt-driven port

ppi0: <Parallel I/O> on ppbus0

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

sio1 at port 0x2f8-0x2ff irq 3 on isa0

sio1: type 16550A

vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0

unknown: <PNP0401> can't assign resources (port)

unknown: <PNP0501> can't assign resources (port)

unknown: <PNP0501> can't assign resources (port)

unknown: <PNP0700> can't assign resources (port)

unknown: <PNP0303> can't assign resources (port)

unknown: <PNP0f13> can't assign resources (irq) Timecounter "TSC" frequency
863869029 Hz quality 800 Timecounters tick every 10.000 msec

GEOM: create disk ad0 dp=0xc2de6b60

ad0: 19092MB <Maxtor 52049H4> [38792/16/63] at ata0-master UDMA100

GEOM: create disk ad1 dp=0xc2de6a60

ad1: 76319MB <ST380020A> [155061/16/63] at ata0-slave UDMA100

acd0: DVDROM <COMPAQ DVD-ROM SD-612B> at ata1-master PIO4

pcm0: measured ac97 link rate at 55933 Hz Mounting root from ufs:/dev/ad0s1a

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