Soft lockup warnings in guest VM during boot if only "vfio/pci: Insert full vma on mmap'd MMIO fault" is reverted on the host kernel: [ 157.283187] watchdog: BUG: soft lockup - CPU#10 stuck for 135s! [swapper/0:1] [ 157.283187] Modules linked in: [ 157.283187] CPU: 10 PID: 1 Comm: swapper/0 Tainted: G L 6.8.0-49-generic #49-Ubuntu [ 157.283187] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 157.283187] RIP: 0010:_raw_spin_unlock_irqrestore+0x21/0x60 [ 157.283187] Code: 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 49 89 f0 48 89 e5 e8 9f 09 00 00 90 41 f7 c0 00 02 00 00 74 06 fb 0f 1f 44 00 00 <65> ff 0d 50 dd 7e 59 74 13 5d 31 c0 31 d2 31 c9 31 f6 31 ff 45 31 [ 157.283187] RSP: 0000:ff47fff940013740 EFLAGS: 00000206 [ 157.283187] RAX: 0000000000000001 RBX: 0000000000000143 RCX: 0000000000000000 [ 157.283187] RDX: 0000000000000cfc RSI: 0000000000000297 RDI: ffffffffa858a138 [ 157.283187] RBP: ff47fff940013740 R08: 0000000000000297 R09: 0000000000000000 [ 157.283187] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004 [ 157.283187] R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000007 [ 157.283187] FS: 0000000000000000(0000) GS:ff455320f7700000(0000) knlGS:0000000000000000 [ 157.283187] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 157.283187] CR2: 0000000000000000 CR3: 000000017a63c001 CR4: 0000000000771ef0 [ 157.283187] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 157.283187] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 [ 157.283187] PKRU: 55555554 [ 157.283187] Call Trace: [ 157.283187] <IRQ> [ 157.283187] ? show_regs+0x6d/0x80 [ 157.283187] ? watchdog_timer_fn+0x206/0x290 [ 157.283187] ? __pfx_watchdog_timer_fn+0x10/0x10 [ 157.283187] ? __hrtimer_run_queues+0x10f/0x2a0 [ 157.283187] ? hrtimer_run_queues+0xf1/0x170 [ 157.283187] ? update_process_times+0x36/0xb0 [ 157.283187] ? clockevents_program_event+0xbe/0x150 [ 157.283187] ? tick_periodic+0x2b/0x90 [ 157.283187] ? tick_handle_periodic+0x25/0x80 [ 157.283187] ? __sysvec_apic_timer_interrupt+0x4e/0x150 [ 157.283187] ? sysvec_apic_timer_interrupt+0x8d/0xd0 [ 157.283187] </IRQ> [ 157.283187] <TASK> [ 157.283187] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 157.283187] ? _raw_spin_unlock_irqrestore+0x21/0x60 [ 157.283187] pci_conf1_write+0xad/0xf0 [ 157.283187] pci_write+0x53/0x90 [ 157.284176] pci_bus_write_config_word+0x24/0x50 [ 157.284176] pci_write_config_word+0x27/0x50 [ 157.284176] __pci_read_base+0x409/0x420 [ 157.284176] pci_read_bases+0x58/0xf0 [ 157.284176] pci_setup_device+0x3de/0x780 [ 157.284176] pci_scan_single_device+0xc2/0x110 [ 157.284176] pci_scan_slot+0x7a/0x230 [ 157.284176] pci_scan_child_bus_extend+0x3b/0x2c0 [ 157.284176] pci_scan_bridge_extend+0x675/0x790 [ 157.284176] ? pci_scan_single_device+0x9b/0x110 [ 157.284176] pci_scan_child_bus_extend+0xf4/0x2c0 [ 157.284176] pci_scan_child_bus+0x10/0x20 [ 157.284176] acpi_pci_root_create+0x289/0x310 [ 157.284176] pci_acpi_scan_root+0x216/0x260 [ 157.284176] acpi_pci_root_add+0x231/0x3e0 [ 157.284176] ? acpi_pnp_match+0x31/0x50 [ 157.284176] acpi_bus_attach+0x148/0x260 [ 157.284176] ? __pfx_acpi_dev_for_one_check+0x10/0x10 [ 157.284176] acpi_dev_for_one_check+0x33/0x50 [ 157.284176] device_for_each_child+0x6b/0xb0 [ 157.284176] acpi_dev_for_each_child+0x3b/0x60 [ 157.284176] ? __pfx_acpi_bus_attach+0x10/0x10 [ 157.284176] acpi_bus_attach+0x227/0x260 [ 157.284176] ? __pfx_acpi_dev_for_one_check+0x10/0x10 [ 157.284176] acpi_dev_for_one_check+0x33/0x50 [ 157.284176] device_for_each_child+0x6b/0xb0 [ 157.284176] acpi_dev_for_each_child+0x3b/0x60 [ 157.284176] ? __pfx_acpi_bus_attach+0x10/0x10 [ 157.284176] acpi_bus_attach+0x227/0x260 [ 157.284176] acpi_bus_scan+0x7d/0x200 [ 157.284176] acpi_scan_init+0xe5/0x1c0 [ 157.284176] acpi_init+0x85/0x170 [ 157.284176] ? __pfx_acpi_init+0x10/0x10 [ 157.284176] do_one_initcall+0x5b/0x340 [ 157.284176] do_initcalls+0x107/0x230 [ 157.284176] ? __pfx_kernel_init+0x10/0x10 [ 157.284176] kernel_init_freeable+0x134/0x210 [ 157.284176] kernel_init+0x1b/0x200 [ 157.284176] ret_from_fork+0x44/0x70 [ 157.284176] ? __pfx_kernel_init+0x10/0x10 [ 157.284176] ret_from_fork_asm+0x1b/0x30 [ 157.284176] </TASK> [ 157.285445] pci 0000:07:00.0: BAR 4 [mem 0x382000000000-0x382001ffffff 64bit pref]
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2089306 Title: vfio_pci soft lockup on VM start while using PCIe passthrough To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2089306/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
