Howdy, I named the subject "interrupt problem", although I am not completely sure it is really a problem with interrupts I'm having. Anyway, the symptoms are the following: - a ddb 5074 board with 3com boomerang ethernet pci card, boots with initial ramdisk (ok) - serial interrupts work (ok) - ethernet card interrupts work when doing a "simple" ping - flooding the card with network packets (ping -f) causes the ddb board to hang/freeze/stall after an unpredictible amount of time, without producing any output on the serial console. - the problem does not seem to exist when I use a realtek ethernet card (ne2k driver) in stead of the 3com card. I've tried to remedy this by: - replacing the low level interrupt handling code for ddb5074 with the new irq.c and time.c in arch/mips/kernel (needs CONFIG_NEW_TIME_C and CONFIG_NEW_IRQ). - replacing the timer interrupts with CPU timer interrupts. - getting the newest 3c59x driver (although I don't have any probs with this driver on pc). - banging my head on the table. No luck so far. I am a bit out of ideas on how to track down the cause of this problem, so it would be really helpful if somebody could either indicate a hint of a possible solution, or suggest ways to debug this situation. Greetz, Tom
