Hi,

Our customer has purchased few Dell Optiplex SX280 computers to run the software (QNX 6.3.0 SP3 with patches/630SP2-0284
/target/qnx6/x86/boot/sys/procnto). However two of three computers crash some 10 minutes after they are started.

It looks like the problem is located in network driver (devn-tigon3.so is used for that hardware), as they tried to 
setup communication over the serial port and after the machine dropped off the netword it still continued to send data 
via serial connection.

Also "Crash[0,0] at kerext_process line 240" message display was reported.

They have tried disabling all the devices they could in the BIOS but that did not help.

Could it be be anything known?

Here is 'pci -v' output for your reference

Memory Limit             = dfd0h
Prefetchable Memory Base = fff0h
Prefetchable Memory Limit= 0h
Prefetchable Base Upper 32 Bits  = 0h
Prefetchable Limit Upper 32 Bits = 0h
I/O Base Upper 16 Bits   = 0h
I/O Limit Upper 16 Bits  = 0h
Bridge Control           = 2h
PCI Int Pin              = INT A
Interrupt line           = 11
CPU Interrupt            = bh
Capabilities Pointer = 88h
Capability ID        = dh - PCI Bridge Subsystem Vendor ID
Capabilities         = 0h - 8086h
Capability ID        = 1h - Power Management
Capabilities         = c802h - 0h
Capability ID        = 5h - Message Signaled Interrupts
Capabilities         = 0h - 0h
Capability ID        = 10h - PCI Express
Capabilities         = 41h - 0h

Class          = Display (VGA)
Vendor ID      = 8086h, Intel Corporation
Device ID      = 2582h,  82915G/GV/910GL Express Chipset Family Graphics Control
ler
PCI index      = 0h
Class Codes    = 030000h
Revision ID    = 4h
Bus number     = 0
Device number  = 2
Function num   = 0
Status Reg     = 90h
Command Reg    = 7h
Header type    = 0h Multi-function
BIST           = 0h Build-in-self-test not supported
Latency Timer  = 0h
Cache Line Size= 0h
PCI Mem Address = dff00000h 32bit length 524288 enabled
PCI IO Address  = ecd8h length 8 enabled
PCI Mem Address = c0000000h prefetchable 32bit length 268435456 enabled
PCI Mem Address = dfec0000h 32bit length 262144 enabled
Subsystem Vendor ID = 1028h
Subsystem ID        = 179h
Max Lat        = 0ns
Min Gnt        = 0ns
PCI Int Pin    = INT A
Interrupt line = 11
CPU Interrupt  = bh
Capabilities Pointer = d0h
Capability ID        = 1h - Power Management
Capabilities         = 22h - 0h

Class          = Display (Other)
Vendor ID      = 8086h, Intel Corporation
Device ID      = 2782h,  82915G Express Chipset Family Graphics Controller
PCI index      = 0h
Class Codes    = 038000h
Revision ID    = 4h
Bus number     = 0
Device number  = 2
Function num   = 1
Status Reg     = 90h
Command Reg    = 7h
Header type    = 0h Multi-function
BIST           = 0h Build-in-self-test not supported
Latency Timer  = 0h
Cache Line Size= 0h
PCI Mem Address = dff80000h 32bit length 524288 enabled
Subsystem Vendor ID = 1028h
Subsystem ID        = 179h
Max Lat        = 0ns
Min Gnt        = 0ns
PCI Int Pin    = NC
Interrupt line = 0
CPU Interrupt  = 0h
Capabilities Pointer = d0h
Capability ID        = 1h - Power Management
Capabilities         = 22h - 0h

Class          = Bridge (PCI/PCI)
Vendor ID      = 8086h, Intel Corporation
Device ID      = 2660h,  82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1
PCI index      = 0h
Class Codes    = 060400h
Revision ID    = 3h
Bus number     = 0
Device number  = 28
Function num   = 0
Status Reg     = 10h
Command Reg    = 107h
Header type    = 1h Multi-function
BIST           = 0h Build-in-self-test not supported
Latency Timer  = 0h
Cache Line Size= 10h un-cacheable
Primary Bus Number       = 0h
Secondary Bus Number     = 2h
Subordinate Bus Number   = 2h
Secondary Latency Timer  = 0h
I/O Base                 = f0h
I/O Limit                = 0h
Secondary Status         = 2000h
Memory Base              = dfc0h
Memory Limit          ...