DMA kernel error from I350 card

[MartinIvanov]

Hello.

After our system was working  for a long time we noticed kernel following error, and traffic stopped:

[Mon Feb 14 10:28:55 2022] DMAR: [DMA Write] Request device [04:00.0] fault addr 179d50000 [fault reason 05] PTE Write access is not set
[Mon Feb 14 10:28:57 2022] DMAR: DRHD: handling fault status reg 3
[Mon Feb 14 10:28:59 2022] dmar_fault: 11 callbacks suppressed
[Mon Feb 14 10:28:59 2022] DMAR: DRHD: handling fault status reg 2

Any clue what might be the issue, and how to recover ?

Details of the system:

04:00.0 Ethernet controller: Intel Corporation I350 Gigabit Fiber Network Connection (rev 01)

OS- Ubuntu 18.04

# uname -a
Linux sofia-site1 4.18.0-25-generic #26~18.04.1-Ubuntu SMP Thu Jun 27 07:28:31 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 12
On-line CPU(s) list: 0-11
Thread(s) per core: 1
Core(s) per socket: 12
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 95
Model name: Intel(R) Atom(TM)
CPU C3858 @ 2.00GHz
Stepping: 1
CPU MHz: 1999.997
BogoMIPS: 4000.00
Virtualization: VT-x
L1d cache: 24K
L1i cache: 32K
L2 cache: 2048K
NUMA node0 CPU(s): 0-11
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx s

[Mike_Intel]

Hello MartinIvanov,

Thank you for posting in Intel Ethernet Communities. 

For us to further check the issue, please provide the following details.

1. Are you using an onboard I350 card or a PCIe card?
2. What is the brand and model of your board or system?
3. Can you share the link of your latest driver?
4. Can you tell what triggered the issue?

If you have questions, please let us know. In case we do not hear from you, we will make a follow up after 3 workings days. Thank you.

Best regards,

Michael L.

Intel® Customer Support

[Mike_Intel]

Hello MartinIvanov,

I hope you're having a wonderful day.

I am just making a follow up on the information that we requested for us to check the issue the you reported. We will wait for your reply.

If you have questions, please let us know. In case we do not hear from you, we will make a follow up after 3 workings days. Thank you.

Best regards,

Michael L.

Intel® Customer Support

[Mike_Intel]

Hello MartinIvanov,

I hope this message finds you well.

I am just sending another follow up on the information that I requested. 

Since we have not heard back from you, I need to close this inquiry. 

If you need any additional information, please submit a new question as this thread will no longer be monitored.

Thank you and stay safe.

Best regards,

Michael L.

Intel® Customer Support