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id = 669
title = "QEMU Segmentation fault - UnRaid 9.3.2 when passing nvidia k620 GPU inserted into Lenovo x3550 M5 server"
state = "closed"
created_at = "2021-10-14T14:21:27.276Z"
closed_at = "2022-08-05T02:57:08.007Z"
labels = ["workflow::Needs Info"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/669"
host-os = "UnRaid 6.9.2"
host-arch = "x86"
qemu-version = "5.1.0"
guest-os = "ALL (windows 10 and Linux)"
guest-arch = "x86"
description = """When I pass the following GPU to any Virtual Machine:
IOMMU group 33:[10de:13bb] 81:00.0 VGA compatible controller: NVIDIA Corporation GM107GL [Quadro K620] (rev a2)
I receive this error as soon as i try to boot the VM (any OS).
Oct 13 03:06:12 MyUnraid-1U kernel: vfio-pci 0000:81:00.0: enabling device (0140 -> 0141)
Oct 13 03:06:12 MyUnraid-1U kernel: vfio-pci 0000:81:00.0: vfio_ecap_init: hiding ecap 0x1e@0x258
Oct 13 03:06:12 MyUnraid-1U kernel: vfio-pci 0000:81:00.0: vfio_ecap_init: hiding ecap 0x19@0x900
**Oct 13 03:06:12 MyUnraid-1U kernel: qemu-system-x86[6080]: segfault at a8 ip 00005618620c812a sp 00007ffc610531b0 error 4 in qemu-system-x86_64[561861fbb000+51d000]
Oct 13 03:06:12 MyUnraid-1U kernel: Code: ef ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 53 48 89 fb 48 83 ec 08 48 8b 6f 58 e8 4e de ff ff 48 89 df e8 16 e9 ff ff <48> 8b 85 a8 00 00 00 48 85 c0 74 52 8b 93 a0 00 00 00 eb 0e 66 90**
Oct 13 03:06:13 MyUnraid-1U avahi-daemon[3536]: Interface vnet0.IPv6 no longer relevant for mDNS.
This is one example of W10 VM:
In attach my VM template
[VM_example.txt](/uploads/428ca5a10ef3338d5d408583fc552b25/VM_example.txt)"""
reproduce = """1.
2.
3."""
additional = """"""
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