NVME passthrough not working - PCI config conflict?

rakali

Active Member
Jan 2, 2020
42
5
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I am passing 2 x NVME to my guest. One is a samsung and it works fine. The other m.2 I have just added is WD/Sandisk and cannot make it work. It is not recognised by the guest.

Tested and working well when booting a live distro on bare metal.

Is there something I am missing?

Code:
06:00.0 Non-Volatile memory controller [0108]: Sandisk Corp WD Black SN750 / PC SN730 NVMe SSD [15b7:5006] (prog-if 02 [NVM Express])
        Subsystem: Sandisk Corp WD Black 2019/PC SN750 NVMe SSD [15b7:5006]
        Flags: fast devsel, IRQ 16, NUMA node 0, IOMMU group 21
        Memory at 62a00000 (64-bit, non-prefetchable) [virtual] [size=16K]
        Memory at 62a04000 (64-bit, non-prefetchable) [virtual] [size=256]
        Capabilities: [80] Power Management version 3
        Capabilities: [90] MSI: Enable- Count=1/32 Maskable- 64bit+
        Capabilities: [b0] MSI-X: Enable- Count=65 Masked-
        Capabilities: [c0] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [150] Device Serial Number 00-00-00-00-00-00-00-00
        Capabilities: [1b8] Latency Tolerance Reporting
        Capabilities: [300] Secondary PCI Express
        Capabilities: [900] L1 PM Substates
        Kernel modules: nvme

Code:
[    0.822917] pci 0000:06:00.0: [15b7:5006] type 00 class 0x010802
[    0.822936] pci 0000:06:00.0: reg 0x10: [mem 0x62a00000-0x62a03fff 64bit]
[    0.822961] pci 0000:06:00.0: reg 0x20: [mem 0x62a04000-0x62a040ff 64bit]
[    0.823082] pci 0000:06:00.0: 15.752 Gb/s available PCIe bandwidth, limited by 8.0 GT/s PCIe x2 link at 0000:00:1b.4 (capable of 31.504 Gb/s with 8.0 GT/s PCIe x4 link)
[    0.913909] pci 0000:06:00.0: Adding to iommu group 21
[    1.582970] nvme nvme1: pci function 0000:06:00.0
[ 1086.071892] vfio-pci 0000:06:00.0: not ready 1023ms after FLR; waiting
[ 1087.127897] vfio-pci 0000:06:00.0: not ready 2047ms after FLR; waiting
[ 1089.399909] vfio-pci 0000:06:00.0: not ready 4095ms after FLR; waiting
[ 1093.751930] vfio-pci 0000:06:00.0: not ready 8191ms after FLR; waiting
[ 1102.199988] vfio-pci 0000:06:00.0: not ready 16383ms after FLR; waiting
[ 1119.352084] vfio-pci 0000:06:00.0: not ready 32767ms after FLR; waiting
[ 1154.168258] vfio-pci 0000:06:00.0: not ready 65535ms after FLR; giving up
[ 1162.989757] vfio-pci 0000:06:00.0: enabling device (0000 -> 0002)
[ 1163.096541] vfio-pci 0000:06:00.0: vfio_ecap_init: hiding ecap 0x19@0x300
[ 1163.097242] vfio-pci 0000:06:00.0: vfio_ecap_init: hiding ecap 0x1e@0x900
 
Last edited:
I tried with another guest (windows) and received a lot of errors in dmesg.

Windows device manager says it cannot start the device. An I/O adapter hardware error has occurred.

Can anyone make sense of it?

Code:
[    0.822374] pci 0000:06:00.0: [15b7:5006] type 00 class 0x010802
[    0.822392] pci 0000:06:00.0: reg 0x10: [mem 0x62a00000-0x62a03fff 64bit]
[    0.822418] pci 0000:06:00.0: reg 0x20: [mem 0x62a04000-0x62a040ff 64bit]
[    0.886184] pci 0000:06:00.0: Adding to iommu group 21
[    1.563643] nvme nvme1: pci function 0000:06:00.0
[  190.879948] vfio-pci 0000:06:00.0: not ready 1023ms after FLR; waiting
[  191.935944] vfio-pci 0000:06:00.0: not ready 2047ms after FLR; waiting
[  194.175943] vfio-pci 0000:06:00.0: not ready 4095ms after FLR; waiting
[  198.527948] vfio-pci 0000:06:00.0: not ready 8191ms after FLR; waiting
[  206.975939] vfio-pci 0000:06:00.0: not ready 16383ms after FLR; waiting
[  224.639918] vfio-pci 0000:06:00.0: not ready 32767ms after FLR; waiting
[  259.455783] vfio-pci 0000:06:00.0: not ready 65535ms after FLR; giving up
[  260.542808] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.543413] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.544075] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.544711] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.545272] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.545819] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.546361] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.546919] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.547460] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.548038] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.548602] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.549123] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.549630] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.550137] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.550642] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.551142] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.551635] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.552174] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.552691] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.553176] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.553627] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.554062] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.554490] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.554909] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.555321] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.555791] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.556232] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.556637] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.557018] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.557391] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.557761] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.558121] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.558481] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.558832] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.559175] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.559515] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.559918] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.560294] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.560627] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.560969] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.561283] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.561592] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0xff@0xff
[  260.561898] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0x0@0xff
[  260.562206] vfio-pci 0000:06:00.0: vfio_cap_init: hiding cap 0x15@0x1
[  260.562506] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x6, was cap 0x0 now cap 0x10
[  260.562801] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x7, was cap 0x0 now cap 0x10
[  260.563085] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x8, was cap 0x0 now cap 0x10
[  260.563357] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x9, was cap 0x0 now cap 0x10
[  260.563613] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0xa, was cap 0x0 now cap 0x10
[  260.563920] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0xb, was cap 0x0 now cap 0x10
[  260.564226] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0xc, was cap 0x0 now cap 0x10
[  260.564478] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0xd, was cap 0x0 now cap 0x10
[  260.564724] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0xe, was cap 0x0 now cap 0x10
[  260.564968] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0xf, was cap 0x0 now cap 0x10
[  260.565224] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x10, was cap 0x0 now cap 0x10
[  260.565458] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x11, was cap 0x0 now cap 0x10
[  260.565684] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x12, was cap 0x0 now cap 0x10
[  260.565896] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x13, was cap 0x0 now cap 0x10
[  260.566095] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x14, was cap 0x0 now cap 0x10
[  260.566284] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x15, was cap 0x0 now cap 0x10
[  260.566464] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x16, was cap 0x0 now cap 0x10
[  260.566645] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x17, was cap 0x0 now cap 0x10
[  260.566823] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x18, was cap 0x0 now cap 0x10
[  260.567000] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x19, was cap 0x0 now cap 0x10
[  260.567173] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x1a, was cap 0x0 now cap 0x10
[  260.567344] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x1b, was cap 0x0 now cap 0x10
[  260.567513] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x1c, was cap 0x0 now cap 0x10
[  260.567712] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x1d, was cap 0x0 now cap 0x10
[  260.567938] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x1e, was cap 0x0 now cap 0x10
[  260.568104] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x1f, was cap 0x0 now cap 0x10
[  260.568270] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x20, was cap 0x0 now cap 0x10
[  260.568437] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x21, was cap 0x0 now cap 0x10
[  260.568605] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x22, was cap 0x0 now cap 0x10
[  260.568774] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x23, was cap 0x0 now cap 0x10
[  260.568942] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x24, was cap 0x0 now cap 0x10
[  260.569111] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x25, was cap 0x0 now cap 0x10
[  260.569281] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x26, was cap 0x0 now cap 0x10
[  260.569452] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x27, was cap 0x0 now cap 0x10
[  260.569637] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x28, was cap 0x0 now cap 0x10
[  260.569809] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x29, was cap 0x0 now cap 0x10
[  260.569980] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x2a, was cap 0x0 now cap 0x10
[  260.570153] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x2b, was cap 0x0 now cap 0x10
[  260.570324] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x2c, was cap 0x0 now cap 0x10
[  260.570496] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x2d, was cap 0x0 now cap 0x10
[  260.570670] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x2e, was cap 0x0 now cap 0x10
[  260.570844] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x2f, was cap 0x0 now cap 0x10
[  260.571019] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x30, was cap 0x0 now cap 0x10
[  260.571195] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x31, was cap 0x0 now cap 0x10
[  260.571371] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x32, was cap 0x0 now cap 0x10
[  260.571548] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x33, was cap 0x0 now cap 0x10
[  260.571779] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x34, was cap 0x0 now cap 0x10
[  260.572015] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x35, was cap 0x0 now cap 0x10
[  260.572199] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x36, was cap 0x0 now cap 0x10
[  260.572381] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x37, was cap 0x0 now cap 0x10
[  260.572563] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x38, was cap 0x0 now cap 0x10
[  260.572747] vfio-pci 0000:06:00.0: vfio_cap_init: PCI config conflict @0x39, was cap 0x0 now cap 0x10
[  260.572964] vfio-pci 0000:06:00.0: vfio_ecap_init: hiding ecap 0x19@0x300
[  260.573160] vfio-pci 0000:06:00.0: vfio_ecap_init: hiding ecap 0x1e@0x900
[  261.965422] vfio-pci 0000:06:00.0: can't change power state from D0 to D3hot (config space inaccessible)
[  278.465663] vfio-pci 0000:06:00.0: enabling device (0000 -> 0002)
[  278.571881] vfio-pci 0000:06:00.0: vfio_ecap_init: hiding ecap 0x19@0x300
[  278.572543] vfio-pci 0000:06:00.0: vfio_ecap_init: hiding ecap 0x1e@0x900
[  294.856028] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.856704] vfio-pci 0000:06:00.0: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID)
[  294.857369] vfio-pci 0000:06:00.0:   device [15b7:5006] error status/mask=0000a000/00000000
[  294.858024] vfio-pci 0000:06:00.0:    [13] NonFatalErr
[  294.858682] vfio-pci 0000:06:00.0:    [15] HeaderOF
[  294.859347] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.860081] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.860887] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.861538] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.862175] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.862799] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.863407] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.864068] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.864712] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.865309] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.879909] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.880509] vfio-pci 0000:06:00.0: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID)
[  294.881110] vfio-pci 0000:06:00.0:   device [15b7:5006] error status/mask=0000a000/00000000
[  294.881793] vfio-pci 0000:06:00.0:    [13] NonFatalErr
[  294.882476] vfio-pci 0000:06:00.0:    [15] HeaderOF
[  294.883085] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.883793] vfio-pci 0000:06:00.0: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID)
[  294.884430] vfio-pci 0000:06:00.0:   device [15b7:5006] error status/mask=0000a000/00000000
[  294.885023] vfio-pci 0000:06:00.0:    [13] NonFatalErr
[  294.885599] vfio-pci 0000:06:00.0:    [15] HeaderOF
[  294.886197] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.886795] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.887376] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.888012] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.888639] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.889200] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.889752] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.890296] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.890836] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  294.891367] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  295.919108] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  295.919656] vfio-pci 0000:06:00.0: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID)
[  295.920231] vfio-pci 0000:06:00.0:   device [15b7:5006] error status/mask=0000a000/00000000
[  295.920812] vfio-pci 0000:06:00.0:    [13] NonFatalErr
[  295.921341] vfio-pci 0000:06:00.0:    [15] HeaderOF
[  295.921878] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  295.922431] pcieport 0000:00:1b.4: AER: Corrected error received: 0000:06:00.0
[  295.923013] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  295.923624] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  295.924209] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  295.924829] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  295.925373] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  295.925906] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
[  295.926426] pcieport 0000:00:1b.4: AER: Multiple Corrected error received: 0000:06:00.0
 
Last edited:
It looks like the device does not reset properly. Maybe this device just does not work with passthrough.
Are there other devices in the IOMMU group? Did you use pcie_acs_override?
Can you try switching the two NVMe devices? This will give a clue about whether it is the device or the M.2 slot.
Passthrough often works with a M.2 slot connected to the CPU but not with a M.2 slot connected to the motherboard chipset. What motherboard are you using?
 
I do have pcie_acs_override

Motherboard is Z390 Aorus Ultra. It looks like the three m.2 are connected to CPU, but maybe I have it wrong?

I will have to try physically moving them around.
Code:
dmesg | grep -i iommu
[    0.000000] Command line: initrd=\EFI\proxmox\5.13.19-2-pve\initrd.img-5.13.19-2-pve root=ZFS=rpool/ROOT/pve-1 boot=zfs intel_iommu=on iommu=pt i915.enable_gvt=1 rootdelay=10 pcie_acs_override=downstream i915.alpha_support=1 video=efifb:off
[    0.000000] Warning: PCIe ACS overrides enabled; This may allow non-IOMMU protected peer-to-peer DMA
[    0.061835] Kernel command line: initrd=\EFI\proxmox\5.13.19-2-pve\initrd.img-5.13.19-2-pve root=ZFS=rpool/ROOT/pve-1 boot=zfs intel_iommu=on iommu=pt i915.enable_gvt=1 rootdelay=10 pcie_acs_override=downstream i915.alpha_support=1 video=efifb:off
[    0.061875] DMAR: IOMMU enabled
[    0.149780] DMAR-IR: IOAPIC id 2 under DRHD base  0xfed91000 IOMMU 1
[    0.823981] iommu: Default domain type: Passthrough (set via kernel command line)
[    0.881541] DMAR: IOMMU feature fl1gp_support inconsistent
[    0.881542] DMAR: IOMMU feature pgsel_inv inconsistent
[    0.881543] DMAR: IOMMU feature nwfs inconsistent
[    0.881544] DMAR: IOMMU feature pasid inconsistent
[    0.881545] DMAR: IOMMU feature eafs inconsistent
[    0.881546] DMAR: IOMMU feature prs inconsistent
[    0.881547] DMAR: IOMMU feature nest inconsistent
[    0.881547] DMAR: IOMMU feature mts inconsistent
[    0.881548] DMAR: IOMMU feature sc_support inconsistent
[    0.881549] DMAR: IOMMU feature dev_iotlb_support inconsistent
[    0.881809] pci 0000:00:00.0: Adding to iommu group 0
[    0.881817] pci 0000:00:01.0: Adding to iommu group 1
[    0.881824] pci 0000:00:01.1: Adding to iommu group 2
[    0.881829] pci 0000:00:02.0: Adding to iommu group 3
[    0.881837] pci 0000:00:12.0: Adding to iommu group 4
[    0.881846] pci 0000:00:14.0: Adding to iommu group 5
[    0.881851] pci 0000:00:14.2: Adding to iommu group 5
[    0.881858] pci 0000:00:16.0: Adding to iommu group 6
[    0.881863] pci 0000:00:17.0: Adding to iommu group 7
[    0.881875] pci 0000:00:1b.0: Adding to iommu group 8
[    0.881882] pci 0000:00:1b.4: Adding to iommu group 9
[    0.881890] pci 0000:00:1c.0: Adding to iommu group 10
[    0.881898] pci 0000:00:1c.5: Adding to iommu group 11
[    0.881905] pci 0000:00:1c.7: Adding to iommu group 12
[    0.881912] pci 0000:00:1d.0: Adding to iommu group 13
[    0.881928] pci 0000:00:1f.0: Adding to iommu group 14
[    0.881933] pci 0000:00:1f.3: Adding to iommu group 14
[    0.881939] pci 0000:00:1f.4: Adding to iommu group 14
[    0.881944] pci 0000:00:1f.5: Adding to iommu group 14
[    0.881950] pci 0000:00:1f.6: Adding to iommu group 14
[    0.881956] pci 0000:01:00.0: Adding to iommu group 15
[    0.881964] pci 0000:02:00.0: Adding to iommu group 16
[    0.881978] pci 0000:03:00.0: Adding to iommu group 17
[    0.881991] pci 0000:03:00.1: Adding to iommu group 18
[    0.881996] pci 0000:04:00.0: Adding to iommu group 19
[    0.882008] pci 0000:05:00.0: Adding to iommu group 20
[    0.882015] pci 0000:06:00.0: Adding to iommu group 21
[    0.882023] pci 0000:08:00.0: Adding to iommu group 22
[    0.882030] pci 0000:09:00.0: Adding to iommu group 23
[    0.882038] pci 0000:0a:00.0: Adding to iommu group 24
[    1.454089]     intel_iommu=on
 
The IOMMU group information you show is useless because of the pcie_acs_override.
According to the Gigabyte website, all three M.2 storage slots are connected to the chipset. One is a little different from the other two, but nothing stands out.
Can you switch the Samsung and WD devices? This will give a clue about whether it is the device or the M.2 slot.
 

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