Packet loss and high ping after upgrade to proxmox 7.x

W

wolowizard

New Member
Dec 8, 2021
1
0
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Hi,

I upgrade my proxmox server from 6.4 to the latest version, and after that I have to much packet loss from my bgp virtual machine and sometimes high ping...
On bgp virtual machine I have passthrough network card.


Default grub setting for passthrough on proxmox host:

Code: 
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on"

after reboot:

Code: 
dmesg | grep -e DMAR -e IOMMU -e AMD-Vi
[    0.013667] ACPI: DMAR 0x000000007D3346F4 000158 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.013717] ACPI: Reserving DMAR table memory at [mem 0x7d3346f4-0x7d33484b]
[    0.453412] DMAR: IOMMU enabled
[    1.060460] DMAR: Host address width 46
[    1.060461] DMAR: DRHD base: 0x000000cf000000 flags: 0x0
[    1.060467] DMAR: dmar0: reg_base_addr cf000000 ver 1:0 cap d2078c106f0466 ecap f020de
[    1.060469] DMAR: DRHD base: 0x000000dc900000 flags: 0x1
[    1.060473] DMAR: dmar1: reg_base_addr dc900000 ver 1:0 cap d2078c106f0466 ecap f020de
[    1.060475] DMAR: RMRR base: 0x0000007f458000 end: 0x0000007f46ffff
[    1.060477] DMAR: RMRR base: 0x0000007f450000 end: 0x0000007f450fff
[    1.060478] DMAR: RMRR base: 0x0000007f452000 end: 0x0000007f452fff
[    1.060479] DMAR: ATSR flags: 0x0
[    1.060481] DMAR-IR: IOAPIC id 2 under DRHD base  0xcf000000 IOMMU 0
[    1.060483] DMAR-IR: IOAPIC id 0 under DRHD base  0xdc900000 IOMMU 1
[    1.060484] DMAR-IR: IOAPIC id 1 under DRHD base  0xdc900000 IOMMU 1
[    1.060486] DMAR-IR: HPET id 0 under DRHD base 0xdc900000
[    1.060487] DMAR-IR: x2apic is disabled because BIOS sets x2apic opt out bit.
[    1.060488] DMAR-IR: Use 'intremap=no_x2apic_optout' to override the BIOS setting.
[    1.061104] DMAR-IR: Enabled IRQ remapping in xapic mode
[    1.493794] DMAR: No SATC found
[    1.493798] DMAR: dmar0: Using Queued invalidation
[    1.493809] DMAR: dmar1: Using Queued invalidation
[    1.551438] DMAR: Intel(R) Virtualization Technology for Directed I/O

find /sys/kernel/iommu_groups/ -type l
/sys/kernel/iommu_groups/55/devices/0000:40:05.2
/sys/kernel/iommu_groups/17/devices/0000:01:00.1
/sys/kernel/iommu_groups/45/devices/0000:3f:10.4
/sys/kernel/iommu_groups/73/devices/0000:7f:10.4
/sys/kernel/iommu_groups/35/devices/0000:3f:0f.0
/sys/kernel/iommu_groups/7/devices/0000:00:05.2
/sys/kernel/iommu_groups/63/devices/0000:7f:0f.0
/sys/kernel/iommu_groups/25/devices/0000:08:00.0
/sys/kernel/iommu_groups/53/devices/0000:40:03.2
/sys/kernel/iommu_groups/15/devices/0000:00:1f.2
/sys/kernel/iommu_groups/15/devices/0000:00:1f.0
/sys/kernel/iommu_groups/43/devices/0000:3f:10.2
/sys/kernel/iommu_groups/71/devices/0000:7f:10.2
/sys/kernel/iommu_groups/33/devices/0000:3f:0d.3
/sys/kernel/iommu_groups/33/devices/0000:3f:0d.1
/sys/kernel/iommu_groups/33/devices/0000:3f:0d.4
/sys/kernel/iommu_groups/33/devices/0000:3f:0d.2
/sys/kernel/iommu_groups/33/devices/0000:3f:0d.0
/sys/kernel/iommu_groups/5/devices/0000:00:03.2
/sys/kernel/iommu_groups/61/devices/0000:7f:0d.0
/sys/kernel/iommu_groups/61/devices/0000:7f:0d.3
/sys/kernel/iommu_groups/61/devices/0000:7f:0d.1
/sys/kernel/iommu_groups/61/devices/0000:7f:0d.4
/sys/kernel/iommu_groups/61/devices/0000:7f:0d.2
/sys/kernel/iommu_groups/23/devices/0000:03:00.2
/sys/kernel/iommu_groups/51/devices/0000:40:02.0
/sys/kernel/iommu_groups/13/devices/0000:00:1d.0
/sys/kernel/iommu_groups/41/devices/0000:3f:10.0
/sys/kernel/iommu_groups/31/devices/0000:3f:0b.0
/sys/kernel/iommu_groups/31/devices/0000:3f:0b.3
/sys/kernel/iommu_groups/3/devices/0000:00:02.2
/sys/kernel/iommu_groups/21/devices/0000:03:00.0
/sys/kernel/iommu_groups/11/devices/0000:00:1c.0
/sys/kernel/iommu_groups/68/devices/0000:7f:0f.5
/sys/kernel/iommu_groups/1/devices/0000:00:01.0
/sys/kernel/iommu_groups/58/devices/0000:7f:0a.0
/sys/kernel/iommu_groups/58/devices/0000:7f:0a.3
/sys/kernel/iommu_groups/58/devices/0000:7f:0a.1
/sys/kernel/iommu_groups/58/devices/0000:7f:0a.2
/sys/kernel/iommu_groups/48/devices/0000:3f:13.0
/sys/kernel/iommu_groups/48/devices/0000:3f:13.5
/sys/kernel/iommu_groups/48/devices/0000:3f:13.1
/sys/kernel/iommu_groups/48/devices/0000:3f:13.4
/sys/kernel/iommu_groups/76/devices/0000:7f:13.4
/sys/kernel/iommu_groups/76/devices/0000:7f:13.0
/sys/kernel/iommu_groups/76/devices/0000:7f:13.5
/sys/kernel/iommu_groups/76/devices/0000:7f:13.1
/sys/kernel/iommu_groups/38/devices/0000:3f:0f.3
/sys/kernel/iommu_groups/66/devices/0000:7f:0f.3
/sys/kernel/iommu_groups/28/devices/0000:3f:08.0
/sys/kernel/iommu_groups/56/devices/0000:7f:08.0
/sys/kernel/iommu_groups/18/devices/0000:01:00.2
/sys/kernel/iommu_groups/46/devices/0000:3f:10.5
/sys/kernel/iommu_groups/74/devices/0000:7f:10.5
/sys/kernel/iommu_groups/36/devices/0000:3f:0f.1
/sys/kernel/iommu_groups/8/devices/0000:00:11.0
/sys/kernel/iommu_groups/64/devices/0000:7f:0f.1
/sys/kernel/iommu_groups/26/devices/0000:09:00.0
/sys/kernel/iommu_groups/26/devices/0000:0b:00.0
/sys/kernel/iommu_groups/26/devices/0000:0a:00.0
/sys/kernel/iommu_groups/54/devices/0000:40:05.0
/sys/kernel/iommu_groups/16/devices/0000:01:00.0
/sys/kernel/iommu_groups/44/devices/0000:3f:10.3
/sys/kernel/iommu_groups/72/devices/0000:7f:10.3
/sys/kernel/iommu_groups/34/devices/0000:3f:0e.1
/sys/kernel/iommu_groups/34/devices/0000:3f:0e.0
/sys/kernel/iommu_groups/6/devices/0000:00:05.0
/sys/kernel/iommu_groups/62/devices/0000:7f:0e.1
/sys/kernel/iommu_groups/62/devices/0000:7f:0e.0
/sys/kernel/iommu_groups/24/devices/0000:03:00.3
/sys/kernel/iommu_groups/52/devices/0000:40:03.0
/sys/kernel/iommu_groups/14/devices/0000:00:1e.0
/sys/kernel/iommu_groups/42/devices/0000:3f:10.1
/sys/kernel/iommu_groups/70/devices/0000:7f:10.1
/sys/kernel/iommu_groups/32/devices/0000:3f:0c.4
/sys/kernel/iommu_groups/32/devices/0000:3f:0c.2
/sys/kernel/iommu_groups/32/devices/0000:3f:0c.0
/sys/kernel/iommu_groups/32/devices/0000:3f:0c.3
/sys/kernel/iommu_groups/32/devices/0000:3f:0c.1
/sys/kernel/iommu_groups/4/devices/0000:00:03.0
/sys/kernel/iommu_groups/60/devices/0000:7f:0c.4
/sys/kernel/iommu_groups/60/devices/0000:7f:0c.2
/sys/kernel/iommu_groups/60/devices/0000:7f:0c.0
/sys/kernel/iommu_groups/60/devices/0000:7f:0c.3
/sys/kernel/iommu_groups/60/devices/0000:7f:0c.1
/sys/kernel/iommu_groups/22/devices/0000:03:00.1
/sys/kernel/iommu_groups/50/devices/0000:40:01.0
/sys/kernel/iommu_groups/12/devices/0000:00:1c.7
/sys/kernel/iommu_groups/40/devices/0000:3f:0f.5
/sys/kernel/iommu_groups/69/devices/0000:7f:10.0
/sys/kernel/iommu_groups/30/devices/0000:3f:0a.3
/sys/kernel/iommu_groups/30/devices/0000:3f:0a.1
/sys/kernel/iommu_groups/30/devices/0000:3f:0a.2
/sys/kernel/iommu_groups/30/devices/0000:3f:0a.0
/sys/kernel/iommu_groups/2/devices/0000:00:02.0
/sys/kernel/iommu_groups/59/devices/0000:7f:0b.3
/sys/kernel/iommu_groups/59/devices/0000:7f:0b.0
/sys/kernel/iommu_groups/20/devices/0000:02:00.0
/sys/kernel/iommu_groups/49/devices/0000:3f:16.2
/sys/kernel/iommu_groups/49/devices/0000:3f:16.0
/sys/kernel/iommu_groups/49/devices/0000:3f:16.1
/sys/kernel/iommu_groups/77/devices/0000:7f:16.2
/sys/kernel/iommu_groups/77/devices/0000:7f:16.0
/sys/kernel/iommu_groups/77/devices/0000:7f:16.1
/sys/kernel/iommu_groups/10/devices/0000:00:1a.0
/sys/kernel/iommu_groups/39/devices/0000:3f:0f.4
/sys/kernel/iommu_groups/67/devices/0000:7f:0f.4
/sys/kernel/iommu_groups/29/devices/0000:3f:09.0
/sys/kernel/iommu_groups/0/devices/0000:00:00.0
/sys/kernel/iommu_groups/57/devices/0000:7f:09.0
/sys/kernel/iommu_groups/19/devices/0000:01:00.3
/sys/kernel/iommu_groups/47/devices/0000:3f:10.7
/sys/kernel/iommu_groups/75/devices/0000:7f:10.7
/sys/kernel/iommu_groups/37/devices/0000:3f:0f.2
/sys/kernel/iommu_groups/9/devices/0000:00:16.0
/sys/kernel/iommu_groups/9/devices/0000:00:16.1
/sys/kernel/iommu_groups/65/devices/0000:7f:0f.2
/sys/kernel/iommu_groups/27/devices/0000:09:01.0

BPG machines is based on debian 10.10 with kernel:

Code: 
4.19.0-17-amd64 #1 SMP Debian 4.19.194-3 (2021-07-18) x86_64 GNU/Linux

lspci
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II]
00:01.2 USB controller: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] (rev 01)
00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03)
00:02.0 VGA compatible controller: Device 1234:1111 (rev 02)
00:03.0 Unclassified device [00ff]: Red Hat, Inc Virtio memory balloon
00:05.0 SCSI storage controller: Red Hat, Inc Virtio SCSI
00:10.0 Ethernet controller: Intel Corporation I350 Gigabit Network Connection (rev 01)
00:1e.0 PCI bridge: Red Hat, Inc. QEMU PCI-PCI bridge
00:1f.0 PCI bridge: Red Hat, Inc. QEMU PCI-PCI bridge

Any ideas what changed that I have network problem on my virtual machine after upgrade?
 
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