[En-Nut-Discussion] Nut/OS For ARM Freezes on Heavy Network Traffic

[Harald Kipp]

In case of heavy network traffic Ethernut 3 freezes
after several minutes or hours, using the app/httpd
sample. Further investigations showed, that it doesn't
return from NutIrqDisable(&NIC_SIGNAL) in routine
NicGetPacket() in file arch/arm/dev/dm9000e.c.

By using the turtelizer I found, that the PC points to
illegal code areas. The link register points to
outr(AIC_IDCR, _BV(IRQ1_ID)) in arch/arm/dev/ih_at91irq1.c.

Any ideas?

Harald