Hi,

I use a ECI K7S5a mainboard with a onboard NIC "SiS 900 10/100
Ethernet". Sometimes I saw "sip0: receive FIFO overrun" but today this
line comes up much more often and the kernel reports "sip0: device
timeout", too. Then I'm disconnected from the internet. I tried
"ifconfig sip0 down; ifconfig sip0 up" but I did not help. I had to
reboot. After very few minutes the same problem popped up again. Looks
like a overheat problem, doesn't it? I wonder why it hits the NIC. It's
a rather slow DSL connection and I would expect another failure but the
system looks stable. 37 degrees celsius system temperature and 51
degrees celsius cpu temp. should not be fatal, right? The fan is OK, the
system is half-open all the time.

Here's my dmesg:

NetBSD 1.5ZC (DURON) #0: Tue May 21 16:02:06 CEST 2002
    root@fuque:/usr/src/sys/arch/i386/compile/DURON
cpu0: AMD Duron (686-class), 896.23 MHz
cpu0: I-cache 64 KB 64b/line 2-way, D-cache 64 KB 64b/line 2-way
cpu0: L2 cache 64 KB 64b/line 16-way
cpu0: features 183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR>
cpu0: features 183f9ff<PGE,MCA,CMOV,FGPAT,PSE36,MMX>
cpu0: features 183f9ff<FXSR>
total memory = 255 MB
avail memory = 234 MB
using 3296 buffers containing 13184 KB of memory
BIOS32 rev. 0 found at 0xfdae0
mainbus0 (root)
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: vendor 0x1039 product 0x0735 (rev. 0x01)
agp0 at pchb0: aperture at 0xd0000000, size 0x400000
ppb0 at pci0 dev 1 function 0: vendor 0x1039 product 0x0001 (rev. 0x00)
pci1 at ppb0 bus 1
pci1: memory space enabled
pcib0 at pci0 dev 2 function 0
pcib0: vendor 0x1039 product 0x0008 (rev. 0x00)
pciide0 at pci0 dev 2 function 5: Silicon Integrated System 5597/5598
IDE controller (rev. 0xd0)
pciide0: bus-master DMA support present
pciide0: primary channel wired to compatibility mode
wd0 at pciide0 channel 0 drive 1: <QUANTUM FIREBALLlct10 10>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 9787 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 20044080
sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 4 (Ultra/66)
pciide0: primary channel interrupting at irq 14
wd0(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 4 (Ultra/66) (using
DMA data transfers)
pciide0: secondary channel wired to compatibility mode
atapibus0 at pciide0 channel 1: 2 targets
cd0 at atapibus0 drive 0: <LG CD-RW CED-8080B, 2000/08/17, 1.08> type 5
cdrom removable
cd0: 32-bit data port
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
cd1 at atapibus0 drive 1: <TOSHIBA CD-ROM XM-6102B, 9200306408, 1106>
type 5 cdrom removable
cd1: 32-bit data port
cd1: drive supports PIO mode 3, DMA mode 2
pciide0: secondary channel interrupting at irq 15
cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using
DMA data transfers)
cd1(pciide0:1:1): using PIO mode 3, DMA mode 1 (using DMA data
transfers)
sip0 at pci0 dev 3 function 0: SiS 900 10/100 Ethernet, rev 0x90
sip0: interrupting at irq 10
sip0: Ethernet address 00:07:95:a9:a5:7f
ukphy0 at sip0 phy 1: Generic IEEE 802.3u media interface
ukphy0: OUI 0x000004, model 0x0020, rev. 1
ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
vga0 at pci0 dev 9 function 0: vendor 0x5333 product 0x8a01 (rev. 0x01)
wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
wsdisplay0: screen 1-7 added (80x25, vt100 emulation)
cmpci0 at pci0 dev 15 function 0: vendor 0x13f6 product 0x0111 (rev.
0x10)
cmpci0: interrupting at irq 11
audio0 at cmpci0: full duplex, mmap, independent
opl at cmpci0 not configured
mpu at cmpci0 not configured
isa0 at pcib0
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
lpt0 at isa0 port 0x378-0x37b irq 7
pcppi0 at isa0 port 0x61
npx0 at isa0 port 0xf0-0xff: using exception 16
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
apm0 at mainbus0: Power Management spec V1.2
biomask f365 netmask f765 ttymask f7e7
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
XFree86 aperture driver version 2.0
Pentium Pro MTRR support enabled

Output from "pcictl /dev/pci0 list":

000:00:0: Silicon Integrated System SiS 735 Host Bridge (host bridge,
revision 0x01)
000:01:0: Silicon Integrated System 86C201 (PCI bridge)
000:02:0: Silicon Integrated System 85C503 or 5597/5598 ISA bridge (ISA
bridge)
000:02:5: Silicon Integrated System 5597/5598 IDE controller (IDE mass
storage, interface 0x80, revision 0xd0)
000:03:0: Silicon Integrated System SiS 900 10/100 Ethernet (ethernet
network, revision 0x90)
000:09:0: S3 ViRGE/DX (VGA display, revision 0x01)
000:15:0: C-Media Electronics Inc CMI8738/C3DX PCI Audio Device (audio
multimedia, revision 0x10)

Regards,
Michael