Comment 20 for bug 1838575

On x86 this looks pretty similar and at the place we have seen before:

45397 0.000073 readlink("/sys/bus/pci/devices/0000:21:00.1/iommu_group", "../../../../kernel/iommu_groups/"..., 4096) = 34 <0.000020>
45397 0.000053 openat(AT_FDCWD, "/dev/vfio/45", O_RDWR|O_CLOEXEC) = 31 <0.000033>
45397 0.000060 ioctl(31, VFIO_GROUP_GET_STATUS, 0x7ffd774f80f8) = 0 <0.000015>
45397 0.000041 openat(AT_FDCWD, "/dev/vfio/vfio", O_RDWR|O_CLOEXEC) = 32 <0.000019>
45397 0.000046 ioctl(32, VFIO_GET_API_VERSION, 0x80002) = 0 <0.000011>
45397 0.000038 ioctl(32, VFIO_CHECK_EXTENSION, 0x3) = 1 <0.000012>
45397 0.000035 ioctl(31, VFIO_GROUP_SET_CONTAINER, 0x55758e6acec8) = 0 <0.000011>
45397 0.000033 ioctl(32, VFIO_SET_IOMMU, 0x3) = 0 <0.000174>
45397 0.000199 ioctl(32, VFIO_DEVICE_GET_PCI_HOT_RESET_INFO or VFIO_IOMMU_GET_INFO or VFIO_IOMMU_SPAPR_TCE_GET_INFO, 0x7ffd774f8100) = 0 <0.000012>
45397 0.000038 ioctl(14, KVM_CREATE_DEVICE, 0x7ffd774f8094) = 0 <0.000015>
45397 0.000039 ioctl(33, KVM_SET_DEVICE_ATTR, 0x7ffd774f80a0) = 0 <0.000028>
45397 0.000054 ioctl(32, VFIO_DEVICE_PCI_HOT_RESET or VFIO_IOMMU_MAP_DMA, 0x7ffd774f7f20) = 0 <0.000287>
45397 0.000312 ioctl(32, VFIO_DEVICE_PCI_HOT_RESET or VFIO_IOMMU_MAP_DMA, 0x7ffd774f7f20) = 0 <0.000035>
45397 0.000058 ioctl(32, VFIO_DEVICE_PCI_HOT_RESET or VFIO_IOMMU_MAP_DMA, 0x7ffd774f7f20) = 0 <0.000037>
45397 0.000060 ioctl(32, VFIO_DEVICE_PCI_HOT_RESET or VFIO_IOMMU_MAP_DMA, 0x7ffd774f7f20) = 0 <0.334458>
45397 0.334593 ioctl(32, VFIO_DEVICE_PCI_HOT_RESET or VFIO_IOMMU_MAP_DMA, 0x7ffd774f7f20) = 0 <0.000055>
45397 0.000088 ioctl(32, VFIO_DEVICE_PCI_HOT_RESET or VFIO_IOMMU_MAP_DMA <unfinished ...>
45402 9.654538 <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out) <10.000112>
45402 0.000144 madvise(0x7fd51236f000, 8368128, MADV_DONTNEED) = 0 <0.000036>
45402 0.000076 exit(0) = ?
45402 0.000074 +++ exited with 0 +++
45397 45.903415 <... ioctl resumed> , 0x7ffd774f7f20) = 0 <55.558237>