Server freezes during boot with iommu on

[terramoto]

Hello,

Here's my build:
CPU: Xeon E5-2650 v2
Motherboard: X79G
RAM: G.Skill ripjaw X 12Gb
GPU: R9 270x and RX580 8Gb

I tried replacing the R9 270x with the RX580 so that i could setup a VM to mine, upon enabling the iommu in grub conf it booted fine but upon attaching it to the VM. The boot gets stuck on these lines:

Reading all physical volumes. This may take a while...
Volume group "pve" not found Cannot process volume group pve
/dev/mapper/pve-root: recovering journal
/dev/mapper/pve-root: clean, *****/****** files, ***/****** blocks

I then removed the rx580 and set the r9 270x with iommu enabled and that booted just fine. Any way i can see what's happening during the freezing? The system responds to ctrl+alt+delete.

# dmesg | grep -e DMAR -e IOMMU
[    0.014252] ACPI: DMAR 0x00000000BAE711D8 0000BC (v01 A M I  OEMDMAR  00000001 INTL 00000001)
[    0.014264] ACPI: Reserving DMAR table memory at [mem 0xbae711d8-0xbae71293]
[    0.061610] DMAR: IOMMU enabled
[    0.140595] DMAR: Host address width 46
[    0.140596] DMAR: DRHD base: 0x000000fbffc000 flags: 0x1
[    0.140601] DMAR: dmar0: reg_base_addr fbffc000 ver 1:0 cap d2078c106f0466 ecap f020df
[    0.140602] DMAR: RMRR base: 0x000000bb73e000 end: 0x000000bb74cfff
[    0.140603] DMAR: ATSR flags: 0x0
[    0.140604] DMAR: RHSA base: 0x000000fbffc000 proximity domain: 0x0
[    0.140606] DMAR-IR: IOAPIC id 0 under DRHD base  0xfbffc000 IOMMU 0
[    0.140607] DMAR-IR: IOAPIC id 2 under DRHD base  0xfbffc000 IOMMU 0
[    0.140608] DMAR-IR: HPET id 0 under DRHD base 0xfbffc000
[    0.140609] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.
[    0.141001] DMAR-IR: Enabled IRQ remapping in x2apic mode
[    1.241810] DMAR: dmar0: Using Queued invalidation
[    1.250051] DMAR: Intel(R) Virtualization Technology for Directed I/O
[    9.836711] AMD-Vi: AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>
[    9.836712] AMD-Vi: AMD IOMMUv2 functionality not available on this system

 

[dcsapak]

hi,

can you please post also the vm config, lspci output and the complete dmesg output? thanks

 

[terramoto]

hi,

can you please post also the vm config, lspci output and the complete dmesg output? thanks

Sorry i meant to delete the thread but i didn't find the button, after going through several articles i finally manage for it to boot properly and even attach it to a VM. Unfortunately once the VM loads the drivers GPU goes missing from it but that would be a different matter.