>>>>> "Manuel" == Manuel Bouyer <bouyer@antioche.lip6.fr> writes:

    >> - Corrupted files/data streams mostly at 32 byte boundaries
    >>   (and for 32 bytes length), quite randomly spread, for writing
    >>   and reading files.

    Manuel> Could be a cache sync issue. What CPU is there in this box
    Manuel> ? Also what devices do you use for disk and network I/O ?

dmesg excerpt:

  total memory = 256 MB
  avail memory = 246 MB
  mainbus0 (root)
  com0 at mainbus0 addr 0x1c800000 level 3: st16650a, working fifo
  com0: console
  cpu0 at mainbus0: QED RM5200 CPU (0x28a0) Rev. 10.0 with built-in FPU Rev. 10.0
  cpu0: 32KB/32B 2-way set-associative L1 Instruction cache, 48 TLB entries
  cpu0: 32KB/32B 2-way set-associative write-back L1 Data cache
  panel0 at mainbus0 addr 0x1f000000
  gt0 at mainbus0 addr 0x14000000
  pci0 at gt0
  pci0: i/o space, memory space enabled, rd/line, wr/inv ok
  [...]
  tlp0 at pci0 dev 7 function 0: DECchip 21143 Ethernet, pass 4.1
  tlp0: interrupting at level 1
  tlp0: Ethernet address 00:10:e0:00:c3:c6
  lxtphy0 at tlp0 phy 1: LXT970 10/100 media interface, rev. 3
  lxtphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
  [...]
  viaide0 at pci0 dev 9 function 1
  viaide0: VIA Technologies VT82C586 (Apollo VP) ATA33 controller
  viaide0: bus-master DMA support present
  viaide0: primary channel configured to compatibility mode
  viaide0: primary channel interrupting at irq 14
  atabus0 at viaide0 channel 0
  viaide0: secondary channel configured to compatibility mode
  viaide0: secondary channel interrupting at irq 15
  atabus1 at viaide0 channel 1
  [...]
  wd0 at atabus0 drive 0: <SAMSUNG SV1604N>
  wd0: drive supports 16-sector PIO transfers, LBA48 addressing
  wd0: 149 GB, 310101 cyl, 16 head, 63 sec, 512 bytes/sect x 312581808 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 2 (Ultra/33) (using DMA data transfers)

'tlp0' and 'viaide0' are all onboard devices.