>Number:         33936
>Category:       kern
>Synopsis:       Error copy big file >100mb on wd*
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          support
>Submitter-Id:   net
>Arrival-Date:   Fri Jul 07 06:30:00 +0000 2006
>Originator:     Maksim
>Release:        Nb-3.0
>Organization:
Sibneft
>Environment:
NetBSD nbGear 3.0 NetBSD 3.0 (GENERIC) #0: Mon Dec 19 01:04:02 UTC 2005  builds@works.netbsd.org:/home/builds/ab/netbsd-3-0-RELEASE/i386/200512182024Z-obj/home/builds/ab/netbsd-3-0-RELEASE/src/sys/arch/i386/compile/GENERIC i386
>Description:
When i try copy big file for example: /usr/sourcesourcecd-3.0.iso to
/usr/sourcecd-3.0.iso_x then make MD5 test sorce and target I get 
different results.
MD5 (/usr/sourcecd-3.0.iso) = e7e9a0a5ccb7be0a14f2d2fab080f62
MD5 (/usr/sourcecd-3.0.iso_x) = 41c9440aea3a992c7ca91b6d7fe592fd
Simple problem save whith another files more 100mb , another memory,HDD
 and kernel whith flag 0x0fac for wd* device.

But whith FreeBSD 5.4 all OK!

>How-To-Repeat:
NetBSD 3.0 (GENERIC) #0: Mon Dec 19 01:04:02 UTC 2005
        builds@works.netbsd.org:/home/builds/ab/netbsd-3-0-RELEASE/i386/200512182024Z-obj/home/builds/ab/netbsd-3-0-RELEASE/src/sys/arch/i386/compile/GENERIC
total memory = 255 MB
avail memory = 241 MB
BIOS32 rev. 0 found at 0xfba90
mainbus0 (root)
cpu0 at mainbus0: (uniprocessor)
cpu0: AMD Athlon XP (686-class), 1353.15 MHz, id 0x6a0
cpu0: features c3c3fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features c3c3fbff<PGE,MCA,CMOV,PAT,PSE36,MMXX,MMX>
cpu0: features c3c3fbff<FXSR,SSE,3DNOW2,3DNOW>
cpu0: "AMD Athlon(tm) XP"
cpu0: I-cache 64 KB 64B/line 2-way, D-cache 64 KB 64B/line 2-way
cpu0: L2 cache 256 KB 64B/line 16-way
cpu0: ITLB 16 4 KB entries fully associative, 8 4 MB entries fully associative
cpu0: DTLB 32 4 KB entries fully associative, 8 4 MB entries 4-way
cpu0: 8 page colors
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: VIA Technologies VT8377 Apollo KT400 CPU to PCI Bridge (rev. 0x80)
agp0 at pchb0: aperture at 0xe0000000, size 0xf900000
ppb0 at pci0 dev 1 function 0: VIA Technologies VT8377CE CPU-AGP Bridge (rev. 0x00)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
vga1 at pci1 dev 0 function 0: Nvidia GeForce4 MX 440 (rev. 0xa3)
wsdisplay0 at vga1 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
ex0 at pci0 dev 11 function 0: 3Com 3c905C-TX 10/100 Ethernet with mngmt (rev. 0x78)
ex0: interrupting at irq 14
ex0: MAC address 00:10:22:fe:8d:71
bmtphy0 at ex0 phy 24: Broadcom 3c905C internal PHY, rev. 7
bmtphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
bktr0 at pci0 dev 12 function 0
bktr0: interrupting at irq 11
bktr0: Card has no configuration EEPROM. Cannot determine card make.
bktr0: Pinnacle/Miro TV, Temic NTSC tuner.
Brooktree Bt878 Video Capture (Audio Section) (miscellaneous multimedia, revision 0x11) at pci0 dev 12 function 1 not configured
viaide0 at pci0 dev 15 function 0
viaide0: VIA Technologies VT8237 SATA Controller (rev. 0x80)
viaide0: bus-master DMA support present
viaide0: primary channel wired to native-PCI mode
viaide0: using irq 11 for native-PCI interrupt
atabus0 at viaide0 channel 0
viaide0: secondary channel wired to native-PCI mode
atabus1 at viaide0 channel 1
viaide1 at pci0 dev 15 function 1
viaide1: VIA Technologies VT8237 ATA133 controller
viaide1: bus-master DMA support present
viaide1: primary channel configured to compatibility mode
viaide1: primary channel ignored (disabled)
viaide1: secondary channel configured to compatibility mode
viaide1: secondary channel interrupting at irq 15
atabus2 at viaide1 channel 1
uhci0 at pci0 dev 16 function 0: VIA Technologies VT83C572 USB Controller (rev. 0x81)
uhci0: interrupting at irq 5
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: VIA Technologies UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1 at pci0 dev 16 function 1: VIA Technologies VT83C572 USB Controller (rev. 0x81)
uhci1: interrupting at irq 5
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: VIA Technologies UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2 at pci0 dev 16 function 2: VIA Technologies VT83C572 USB Controller (rev. 0x81)
uhci2: interrupting at irq 11
usb2 at uhci2: USB revision 1.0
uhub2 at usb2
uhub2: VIA Technologies UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
uhci3 at pci0 dev 16 function 3: VIA Technologies VT83C572 USB Controller (rev. 0x81)
uhci3: interrupting at irq 11
usb3 at uhci3: USB revision 1.0
uhub3 at usb3
uhub3: VIA Technologies UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
ehci0 at pci0 dev 16 function 4: VIA Technologies VT8237 EHCI USB Controller (rev. 0x86)
ehci0: interrupting at irq 11
ehci0: BIOS has given up ownership
ehci0: EHCI version 1.0
ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2 uhci3
usb4 at ehci0: USB revision 2.0
uhub4 at usb4
uhub4: VIA Technologie EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub4: single transaction translator
uhub4: 8 ports with 8 removable, self powered
pcib0 at pci0 dev 17 function 0
pcib0: VIA Technologies VT8237 (Apollo KT600) PCI-ISA Bridge (rev. 0x00)
auvia0 at pci0 dev 17 function 5: VIA Technologies VT8237 AC'97 Audio (rev 0x60)
auvia0: interrupting at irq 11
auvia0: ac97: Avance Logic ALC655 codec; no 3D stereo
auvia0: ac97: ext id 9c4<AC97_23,LDAC,SDAC,CDAC,SPDIF>
audio0 at auvia0: full duplex, independent
vr0 at pci0 dev 18 function 0: VIA VT6102 (Rhine II) 10/100 Ethernet
vr0: interrupting at irq 5
vr0: Ethernet address: 00:04:61:4d:4a:21
ukphy0 at vr0 phy 1: Generic IEEE 802.3u media interface
ukphy0: OUI 0x0002c6, model 0x0032, rev. 8
ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
VIA Technologies VT6306 IEEE 1394 Host Controller (Firewire serial bus, interface 0x10, revision 0x80) at pci0 dev 19 function 0 not configured
isa0 at pcib0
lpt0 at isa0 port 0x378-0x37b irq 7
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: PC speaker
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
npx0 at isa0 port 0xf0-0xff: using exception 16
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
isapnp0: no ISA Plug 'n Play devices found
Kernelized RAIDframe activated
wd0 at atabus0 drive 0: <Maxtor 6E040T0>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 38166 MB, 77545 cyl, 16 head, 63 sec, 512 bytes/sect x 78165360 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd0(viaide0:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using DMA)
wd1 at atabus1 drive 0: <SAMSUNG HD120IJ>
wd1: drive supports 16-sector PIO transfers, LBA48 addressing
wd1: 111 GB, 232581 cyl, 16 head, 63 sec, 512 bytes/sect x 234441648 sectors
wd1: 32-bit data port
wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 7
wd1(viaide0:1:0): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133) (using DMA)
atapibus0 at atabus2: 2 targets
cd0 at atapibus0 drive 0: <_NEC DVD_RW ND-4550A, , 1.06> cdrom removable
cd0: 32-bit data port
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
cd0(viaide1:1:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA)
umass0 at uhub4 port 7 configuration 1 interface 0
umass0: DurPower USB20Reader, rev 2.00/91.44, addr 2
umass0: using SCSI over Bulk-Only
scsibus0 at umass0: 2 targets, 4 luns per target
sd0 at scsibus0 target 0 lun 0: <DurPower, CF  USB20Reader, 9144> disk removable
sd0: drive offline
sd1 at scsibus0 target 0 lun 1: <DurPower, SM  USB20Reader, 9144> disk removable
sd1: drive offline
sd2 at scsibus0 target 0 lun 2: <DurPower, SD  USB20Reader, 9144> disk removable
sd2: drive offline
sd3 at scsibus0 target 0 lun 3: <DurPower, MS  USB20Reader, 9144> disk removable
sd3: drive offline
boot device: wd1
root on wd1g dumps on wd1b
root file system type: ffs

And try copy big file.
>Fix:
I dont now.