Hi,
I think I’ve stumbled on a possible bug.
When booting with the kernel option “intel_iommu=on” then it works fine with kernel 5.3.18-lp152.66-default
but fails with 5.3.18-lp152.69-default (se below)
Removing the option is also a work around…
Any hints?
1.290627] CR2: 0000000000000000 CR3: 000000037760a001 CR4: 00000000001606f0
1.298627] Call Trace:
1.298627] intel_iommu_domain_alloc+0x4b/0xf0
1.298627] request_default_domain_for_dev+0xbd/0x170
1.298627] intel_iommu_add_device+0x107/0x180
1.298627] iommu_probe_device+0x48/0xd0
1.306627] ? iommu_probe_device+0xd0/0xd0
1.306627] ? iommu_probe_device+0xd0/0xd0
1.306627] add_iommu_group+0xa/0x20
1.306627] bus_for_each_dev+0x76/0xc0
1.314627] bus_set_iommu+0x85/0xc0
1.314627] intel_iommu_init+0x507/0x7a1
1.314627] ? e820__memblock_setup+0x60/0x60
1.314627] ? set_debug_rodata+0x11/0x11
1.314627] pci_iommu_init+0x16/0x3f
1.322627] do_one_initcall+0x46/0x1f4
1.322627] kernel_init_freeable+0x1ba/0x25f
1.322627] ? rest_init+0xb0/0xb0
1.322627] kernel_init+0xa/0x110
1.322627] ret_from_fork+0x35/0x40
1.330627] Modules linked in:
1.333307] --- end trace 82bbf418f925c7f7 ]---
1.335275] RIP: 0010:domain_update_iotlb+0x98/0xa0
1.337325] Code: 92 c0 48 85 c9 40 0f 95 c6 40 20 f0 74 06 80 79 44 00 78 b9 48 8b 42 10 49 39 c0 48 8d 50 f0 75 ca 31 c0 88 87 04 03 00 00 c3 <0f> 0b 66 0f 1f 44 00 00 0f 1f 44 00 00 8b 05 95 b3 e1 01 53 48 89
1.344544] RSP: 0000:ffffb4644001bd00 EFLAGS: 00010246
1.346697] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
1.349498] RDX: 0000000000000000 RSI: ffff8f1a47c69100 RDI: ffff8f1d356f0b00
1.352274] RBP: ffff8f1d356f0b00 R08: 0000080000000000 R09: 0000000000000000
1.355260] R10: ffffb4644001bab8 R11: 0000000002de9e49 R12: 0000000000000003
1.358067] R13: ffff8f1d37d6fa58 R14: ffffffffbbedcc60 R15: 0000000000000000
1.360798] FS: 0000000000000000(0000) GS:ffff8f1d3a800000(0000) knlGS:0000000000000000
1.364120] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
1.366416] CR2: 0000000000000000 CR3: 000000037760a001 CR4: 00000000001606f0
1.369291] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
1.372557] Rebooting in 90 seconds..
