Finally I found the problem causing the sudden system reset :

our setup :

P2020<====>PCI Bridge <=====> FPGA

The reset occurs when we allocating skb and giving the Fpga dma addr of
skb->data of this skb and when the FPGA tries to reach this address we are
having a hardware reset. 

To fixed it we used GFP_DMA flag on skb allocations.

If you can explain me few thinks I will be more  then happy :
1) how come we managed to work in 2.6.32 kernel without this flag.
2) Ok gave you a bad dma address why reset the system without  any warning. 

Thanks for your time and support

Leonid Ravich





--
View this message in context: 
http://linuxppc.10917.n7.nabble.com/Re-PCIE-device-errors-after-linux-kernel-upgrade-tp74563p79160.html
Sent from the linuxppc-dev mailing list archive at Nabble.com.
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev

Reply via email to