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KastnerRG / riffa

The RIFFA development repository
https://riffa.ucsd.edu
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riffa: BAR 0 incorrect length #21

Open loiron opened 6 years ago

loiron commented 6 years ago

Hi,

I'm having a problem with the riffa driver. I installed without any errors, but when is loaded in the system, I have this error:

[ 7.405537] riffa: module verification failed: signature and/or required key missing - tainting kernel [ 7.405776] riffa: found FPGA with name: 0000:01:00.00 [ 7.405780] riffa: vendor id: 0x10EE [ 7.405782] riffa: device id: 0x6018 [ 7.405785] riffa: BAR 0 address: fe600000 [ 7.405788] riffa: BAR 0 length: 1048576 bytes [ 7.405790] riffa: BAR 0 incorrect length

I don't know why the length is not 1024... I'm using Ubuntu 16.04 with, kernel 4.4.0-31-generic, FPGA Xilinx ML605. I tried with all the versions of the riffa driver, and with other kernels, but I couldn' solve the problem. Any clue on what is going on?

Thank you very much, Lois

drichmond commented 6 years ago

Can you install the debug driver?

make debug; sudo make install

On Fri, Aug 4, 2017 at 12:16 PM, loiron notifications@github.com wrote:

Hi,

I'm having a problem with the riffa driver. I installed without any errors, but when is loaded in the system, I have this error:

[ 7.405537] riffa: module verification failed: signature and/or required key missing - tainting kernel [ 7.405776] riffa: found FPGA with name: 0000:01:00.00 [ 7.405780] riffa: vendor id: 0x10EE [ 7.405782] riffa: device id: 0x6018 [ 7.405785] riffa: BAR 0 address: fe600000 [ 7.405788] riffa: BAR 0 length: 1048576 bytes [ 7.405790] riffa: BAR 0 incorrect length

I don't know why the length is not 1024... I'm using Ubuntu 16.04 with the kernel 4.4.0-31-generic. I tried with all the versions of the riffa driver, and with other kernels, but I couldn' solve the problem. Any clue on what is going on?

Thank you very much, Lois

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loiron commented 6 years ago

I did that, but when executing dmesg | grep riffa I see the exact same information than before.

Thanks, Lois

manbhagss commented 6 years ago

Hi loiron,

It can happen because of many reasons, however, most frequent is that the constraints do not provide any connections to the PCIe TX and RX pins. Can you check that ?