Problems with 4x GigE PCIe

Autonomous Machines Jetson & Embedded Systems Jetson Nano
,
1

Hi there,

I am currently evaluating the Jetson family and need a 4x GigE PCIe card for a project.

The first test was on the big TX2 board with a Intel i340, which worked perfectly fine.

After this I tried the same card with a Jetson nano in an AUVIDEA board, which has PCIe x4 routed to a M.2 MVME PCIe x4 connector.
Tests with the i340 showed the following problems resulting in the nano not to boot:

Kernel version:
R32 (release), REVISION: 5.1, GCID: 26202423, BOARD: t210ref, EABI: aarch64, DATE: Fri Feb 19 16:45:52 UTC 2021

Starting kernel …

[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.9.201-tegra (buildbrain@mobile-u64-4415) (gcc version 7.3.1 20180425 [linaro-7.3-2018.05 revision d29120a424ecfbc167ef90065c0eeb7f91977701] (Linaro GCC 7.3-2018.05) ) #1 SMP PREEMPT Fri Jan 15 14:41:02 PST 2021
[ 0.000000] Boot CPU: AArch64 Processor [411fd071]
[ 0.000000] OF: fdt:memory scan node memory@80000000, reg size 32,
[ 0.000000] OF: fdt: - 80000000 , 7ee00000
[ 0.000000] OF: fdt: - 100000000 , 7f200000
[ 0.000000] Found tegra_fbmem: 00800000@92cb4000
[ 0.000000] earlycon: uart8250 at MMIO32 0x0000000070006000 (options ‘’)
[ 0.000000] bootconsole [uart8250] enabled
[ 0.389790] Node fragement does not have Overlay child
[ 0.389817] Error in parsing node /plugin-manager/fragement@10: -22
[ 1.159489] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
[ 1.159494] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000081/00002000
[ 1.159498] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
[ 1.159503] pcieport 0000:00:01.0: [ 7] Bad DLLP
[ 1.162979] tegradc tegradc.1: dpd enable lookup fail:-19
[ 1.224627] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
[ 1.234839] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000081/00002000
[ 1.243444] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
[ 1.250291] pcieport 0000:00:01.0: [ 7] Bad DLLP
[ 1.281005] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
[ 1.291210] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000081/00002000
[ 1.299817] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
[ 1.299822] pcieport 0000:00:01.0: [ 7] Bad DLLP
[ 1.502528] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
[ 1.502533] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000081/00002000
[ 1.502537] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
[ 1.502541] pcieport 0000:00:01.0: [ 7] Bad DLLP
[ 1.504833] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
[ 1.504837] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000081/00002000
[ 1.504841] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
[ 1.504845] pcieport 0000:00:01.0: [ 7] Bad DLLP
[ 1.507739] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
[ 1.507743] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000081/00002000
[ 1.507747] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
[ 1.507751] pcieport 0000:00:01.0: [ 7] Bad DLLP
[ 1.511508] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
[ 1.511512] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000081/00002000
[ 1.511516] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
[ 1.511519] pcieport 0000:00:01.0: [ 7] Bad DLLP
[ 1.674303] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
[ 1.674306] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000081/00002000
[ 1.674310] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
[ 1.674313] pcieport 0000:00:01.0: [ 7] Bad DLLP
[ 1.681416] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
[ 1.681420] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000081/00002000
[ 1.681423] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
[ 1.681533] pcieport 0000:00:01.0: [ 7] Bad DLLP
[ 1.846606] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
[ 1.856890] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000081/00002000
[ 1.865340] pcieport 0000:00:01.0: [
[ 23.338211] INFO: rcu_sched detected stalls on CPUs/tasks:
[ 23.345854] 0-…: (0 ticks this GP) idle=fe1/140000000000002/0 softirq=410/410 fqs=0
[ 23.356024] (detected by 1, t=5252 jiffies, g=-272, c=-273, q=60)
[ 23.364410] rcu_sched kthread starved for 5252 jiffies! g18446744073709551344 c18446744073709551343 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[ 23.378865] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 23.386762] 0-…: (1 GPs behind) idle=fe1/140000000000002/0 softirq=401/410 fqs=2479
[ 23.396983] (detected by 1, t=5261 jiffies, g=-118, c=-119, q=31938)
[ 24.326216] Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu 0
[ 24.335692] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.9.201-tegra #1
[ 24.344456] Hardware name: NVIDIA Jetson Nano Developer Kit (DT)
[ 24.352687] Call trace:
[ 24.357350] [] dump_backtrace+0x0/0x198
[ 24.364987] [] show_stack+0x24/0x30
[ 24.372255] [] dump_stack+0xa0/0xc8
[ 24.379505] [] panic+0x12c/0x2a8
[ 24.386485] [] watchdog_check_hardlockup_other_cpu+0x11c/0x120
[ 24.396072] [] watchdog_timer_fn+0x98/0x2c0
[ 24.404001] [] __hrtimer_run_queues+0xd8/0x360
[ 24.412184] [] hrtimer_interrupt+0xa8/0x1e0
[ 24.420082] [] tegra210_timer_isr+0x38/0x48
[ 24.427962] [] __handle_irq_event_percpu+0x68/0x288
[ 24.436531] [] handle_irq_event_percpu+0x28/0x60
[ 24.444851] [] handle_irq_event+0x50/0x80
[ 24.452528] [] handle_fasteoi_irq+0xd4/0x1c0
[ 24.460446] [] generic_handle_irq+0x34/0x50
[ 24.468262] [] __handle_domain_irq+0x68/0xc0
[ 24.476170] [] gic_handle_irq+0x5c/0xb0
[ 24.483632] [] el1_irq+0xe8/0x194
[ 24.490542] [] cpuidle_enter_state+0xb8/0x380
[ 24.498497] [] cpuidle_enter+0x34/0x48
[ 24.505845] [] call_cpuidle+0x44/0x70
[ 24.513077] [] cpu_startup_entry+0x1b0/0x200
[ 24.520904] [] secondary_start_kernel+0x190/0x1f8
[ 24.529160] [<0000000084f671a4>] 0x84f671a4
[ 24.535338] SMP: stopping secondary CPUs
[ 24.541294] Kernel Offset: disabled
[ 24.546746] Memory Limit: none
[ 24.556619] Rebooting in 5 seconds…

To verify, if the Board, Adapter or the PCIe card is defect, I changed the Nano against a Xavier NX which worked perfectly fine.

I then updated the Kernel of the Nano to

R32 (release), REVISION: 5.1, GCID: 27362550, BOARD: t210ref, EABI: aarch64, DATE: Wed May 19 18:07:59 UTC 2021

and nothing changed.

So to get further information, I tried with lots of different PCIe cards with the Nano, which showed me the following result:

  • FireWire PCIe 1x works fine
  • Proprietary data card PCIe 1x works fine
  • 1x GigE Realtek works fine
  • 1x GigE i310 does not work → but works with Xavier NX

After finding some hints about problems with Intel chips I decided to get some 4x GigE Realtek card, which again works fine with the Xavier NX:

me@jetson-xavier-jnx30-1:~$ lspci
0005:00:00.0 PCI bridge: NVIDIA Corporation Device 1ad0 (rev a1)
0005:01:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
0005:02:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
0005:02:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
0005:02:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
0005:02:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch
0005:03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
0005:04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
0005:05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
0005:06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)

But with the Nano there is still a problem:

[ 1.287303] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000001/00002000
** 9072 printk messages dropped ** [ 1.431519] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 574 printk messages dropped ** [ 1.469868] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
** 422 printk messages dropped ** [ 1.479877] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 573 printk messages dropped ** [ 1.494127] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 534 printk messages dropped ** [ 1.506196] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 475 printk messages dropped ** [ 1.517215] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 510 printk messages dropped ** [ 1.529822] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 570 printk messages dropped ** [ 1.545714] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 545 printk messages dropped ** [ 1.559770] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 540 printk messages dropped ** [ 1.572030] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000001/00002000
** 477 printk messages dropped ** [ 1.583360] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
** 398 printk messages dropped ** [ 1.593364] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
** 327 printk messages dropped ** [ 1.600892] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 461 printk messages dropped ** [ 1.612164] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
** 417 printk messages dropped ** [ 1.623898] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
** 407 printk messages dropped ** [ 1.634818] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 510 printk messages dropped ** [ 1.648037] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 498 printk messages dropped ** [ 1.659942] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
** 310 printk messages dropped ** [ 1.667813] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000001/00002000
** 492 printk messages dropped ** [ 1.680761] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
** 350 printk messages dropped ** [ 1.690667] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 448 printk messages dropped ** [ 1.702872] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 505 printk messages dropped ** [ 1.715880] pcieport 0000:00:01.0: [ 0] Receiver Error (First)
** 354 printk messages dropped ** [ 1.725966] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000001/00002000
** 391 printk messages dropped ** [ 1.736423] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 372 printk messages dropped ** [ 1.746976] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000001/00002000
** 392 printk messages dropped ** [ 1.757362] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 504 printk messages dropped ** [ 1.774217] pcieport 0000:00:01.0: device [10de:0fae] error status/mask=00000001/00002000
** 390 printk messages dropped ** [ 1.785908] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 469 printk messages dropped ** [ 1.798420] pcieport 0000:00:01.0: [ 0] Receiver Error (First)

How can I fix this problem?

Can anyone help please?

Has anyone a working solution for 4x GigE with the Nano?

3

Thanks for reporting this issue, we’re checking internally if able to support 4xGigE with Nano.

4

The issue with both the cards (Intel and Realtek) seems to be with signal integrity. I see that all the errors are reported by the physical layer and in the case of the Intel card, I think the link has gone down resulting in the crash of the system.
Do you also observe system crash with Realtek also or is it only a slew of prints, but the functionality is fine?
In any case, there is nothing much we can offer here as the issues are with bad electricals.

5

Thank you for your answer.
I first thought the same, that there could be a problem with the used connector or the board, but since I switched the nano against the Xavier NX and all PCIe cards worked, I could only see an electrical issue on the nano board itself.
I even switched the nano board with another nano board, which resulted in the same errors.

If the card works - like the 1x GigE Realtek at the nano - or the 4x GigE Realtek at the xavier - there are NO error messages!

To your question:
With the 4x GigE Realtek at the nano the monitor freezes at the NVIDIA logo and the serial console permanently traces pcie errors. It does not crash, but it does not work either. After a few minute in this state, the borad restarts.

Do you have any other advice or test for us?

If there is no solution, nor a confirmation that ANY 4x GigE could work with the nano, we can not use the nano for our product.

6

Can you check if ASPM states are enabled in this case?
Please give it a try by disabling them. ASPM states can be disabled by appending “pcie_aspm=off” to the kernel command line.

7

Thank you for your reply. I have tried this before, but to be sure, I repeated it with the Realtek card and unfortunately there were still lots of errors:

...
Retrieving file: /boot/Image
34605064 bytes read in 783 ms (42.1 MiB/s)
append: tegraid=21.1.2.0.0 ddr_die=4096M@2048M section=512M memtype=0 vpr_resize usb_port_owner_info=0 lane_owner_info=0 emc_max_dvfs=0 touch_id=0@63 video=tegrafb no_console_suspend=1 console=ttyS0,115200n8 debug_uartport=lsport,4 earlyprintk=uart8250-32bit,0x70006000 maxcpus=4 usbcore.old_scheme_first=1 lp0_vec=0x1000@0xff780000 core_edp_mv=1125 core_edp_ma=4000 gpt  earlycon=uart8250,mmio32,0x70006000  root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0 sdhci_tegra.en_boot_part_access=1 quiet root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0 sdhci_tegra.en_boot_part_access=1 pcie_aspm=off

The pcie_aspm=off was set.

...
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.9.201-tegra (***) (gcc version 7.3.1 20180425 [linaro-7.3-2018.05 revision d29120a424ecfbc167ef90065c0eeb7f91977701] (Linaro GCC 7.3-2018.05) ) #1 SMP PREEMPT Fri Jul 23 10:33:33 CEST 2021
[    0.000000] Boot CPU: AArch64 Processor [411fd071]
[    0.000000] OF: fdt:memory scan node memory@80000000, reg size 32,
[    0.000000] OF: fdt: - 80000000 ,  7ee00000
[    0.000000] OF: fdt: - 100000000 ,  7f200000
[    0.000000] earlycon: uart8250 at MMIO32 0x0000000070006000 (options '')
[    0.000000] bootconsole [uart8250] enabled
** 2028 printk messages dropped ** [    1.621305] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 856 printk messages dropped ** [    1.642454] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 625 printk messages dropped ** [    1.653622] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 661 printk messages dropped ** [    1.663722] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 922 printk messages dropped ** [    1.677850] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 837 printk messages dropped ** [    1.689898] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 930 printk messages dropped ** [    1.704278] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 684 printk messages dropped ** [    1.713730] pcieport 0000:00:01.0:   device [10de:0fae] error status/mask=00000001/00002000
** 789 printk messages dropped ** [    1.724897] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 925 printk messages dropped ** [    1.738188] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 940 printk messages dropped ** [    1.751678] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 908 printk messages dropped ** [    1.764449] pcieport 0000:00:01.0:   device [10de:0fae] error status/mask=00000001/00002000
** 836 printk messages dropped ** [    1.775993] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 987 printk messages dropped ** [    1.789903] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 928 printk messages dropped ** [    1.802366] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 917 printk messages dropped ** [    1.815322] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 951 printk messages dropped ** [    1.828583] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 679 printk messages dropped ** [    1.838470] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 960 printk messages dropped ** [    1.851764] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 941 printk messages dropped ** [    1.864459] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 749 printk messages dropped ** [    1.874907] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 718 printk messages dropped ** [    1.884661] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 725 printk messages dropped ** [    1.894292] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 720 printk messages dropped ** [    1.903822] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 979 printk messages dropped ** [    1.917153] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 932 printk messages dropped ** [    1.929415] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 985 printk messages dropped ** [    1.943369] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 1008 printk messages dropped ** [    1.956736] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 689 printk messages dropped ** [    1.965968] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 990 printk messages dropped ** [    1.979297] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 950 printk messages dropped ** [    1.992007] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 996 printk messages dropped ** [    2.005655] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 995 printk messages dropped ** [    2.018741] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 1014 printk messages dropped ** [    2.032148] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 757 printk messages dropped ** [    2.041707] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 989 printk messages dropped ** [    2.054714] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 982 printk messages dropped ** [    2.067737] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 705 printk messages dropped ** [    2.077335] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 1035 printk messages dropped ** [    2.091306] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 720 printk messages dropped ** [    2.100238] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 1033 printk messages dropped ** [    2.114159] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 713 printk messages dropped ** [    2.123304] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 723 printk messages dropped ** [    2.132745] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 971 printk messages dropped ** [    2.145973] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 776 printk messages dropped ** [    2.156452] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 994 printk messages dropped ** [    2.169240] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 1034 printk messages dropped ** [    2.182724] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 758 printk messages dropped ** [    2.192337] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 1034 printk messages dropped ** [    2.205677] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 1016 printk messages dropped ** [    2.218629] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 1057 printk messages dropped ** [    2.232352] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 769 printk messages dropped ** [    2.241951] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 769 printk messages dropped ** [    2.251594] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 946 printk messages dropped ** [    2.263620] pcieport 0000:00:01.0:    [ 0] Receiver Error         (First)
** 768 printk messages dropped ** [    2.274390] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)
** 993 printk messages dropped ** [    2.287159] pcieport 0000:00:01.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0008(Receiver ID)

So is there any other option I could/should try??

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