Find mc-err message on TX1

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX1
1

Hi Guys,

Sometimes, I find the mc-err message on TX1:

[ 25.643449] smmu_dump_pagetable(): fault_address=0x000 00000d0800040 pa=0xffffffffffffffff bytes=ffffffffffffffff #pte=0 in L2
[ 25.654762] mc-err: (0) csw_afiw: EMEM decode error on PDE or PTE entry
[ 25.661391] mc-err: status = 0x60051031; addr = 0xd0800040
[ 25.667048] mc-err: secure: no, access-type: write, SMMU fault: nr-nw-s
[ 85.740658] smmu_dump_pagetable(): fault_address=0x00000000d0800000 pa=0xffff ffffffffffff bytes=ffffffffffffffff #pte=0 in L2
[ 85.751984] mc-err: (0) csw_afiw: EMEM decode error on PDE or PTE entry
[ 85.758607] mc-err: status = 0x60010031; addr = 0xd0800000
[ 85.764323] mc-err: secure: no, access-type: write, SMMU fault: nr-nw-s

How can I fixed this ?

Thanks!!!
BR.

Alleen Wang

2

alleen.wang,

Could you describe more about your issue?

3

Hi Wayne,

We try send the some data to PCIe device at this time.
TX1 was shown this error message.

Thanks!!!
BR.

Alleen Wang

4

Are you using jetpack3.2? Please describe more about your system/BSP/carrier board.

I understand you are sending some data to PCIe device.

5

Hi Wayne,

I used JetPack3.1, but I select old version 2.3.1.
TX1 module installed on our customized board.
Ubuntu version is “16.04.4”.
Kernel version is “3.10.96”.

6

We may have resolved this issue on rel-28.2. Would you like to give a try?

7

I also am seeing this issue on 28.1 using a PCI wireless Qualcomm card… am currently in process of upgrading to 28.2 and will post results here.

See my similar case here:

[url]https://devtalk.nvidia.com/default/topic/1032074/jetson-tx1/ath10k-driver-failing-with-wireless-pcie-card-on-tx1/post/5251115/#5251115[/url]

8

Hi Wayne,

We try to porting all drivers to rel-28.2.
But we need more time for this action.

After porting finish, we will try to reproduce this issue, and will feedback results on here.

Thanks!!!
BR.

Alleen Wang

9

Hi alleen.wang and ryeager12,

Can you still reproduce this issue after upgraded to R28.2?
Any result can be shared?

Thanks

10

Hi Kaycc,

I still try to porting our PCIe device driver to R28.2, but I got another issue.

Case address :
https://devtalk.nvidia.com/default/topic/1032967/jetson-tx1/-quot-dma_alloc_coherent-quot-return-memory-address-can-t-to-use-for-quot-virt_to_page-quot-on-jetpack-3-2-tx1-kernel/post/5255767/?offset=5#5255873

If I solve this issue, I will report test results.

Thanks!!!
BR.

Alleen Wang