igt@i915_module_load@load | igt@runner@aborted - dmesg-warn/fail - WARNING: inconsistent lock state, inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage, at: iommu_flush_dev_iotlb.part.*, intel_iommu_attach_device.*
boot log: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11991/shard-tglu-6/boot13.txt
<4>[ 6.824299] ================================
<4>[ 6.824303] WARNING: inconsistent lock state
<4>[ 6.824306] 6.0.0-rc1-CI_DRM_11991-g4753c139edec+ #1 Not tainted
<4>[ 6.824312] --------------------------------
<4>[ 6.824315] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
<4>[ 6.824320] swapper/4/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
<4>[ 6.824325] ffff8881034a5678 (&domain->lock){+.?.}-{2:2}, at: iommu_flush_dev_iotlb.part.61+0x23/0x80
<4>[ 6.824340] {SOFTIRQ-ON-W} state was registered at:
<4>[ 6.824344] lock_acquire+0xd3/0x310
<4>[ 6.824350] _raw_spin_lock+0x2a/0x40
<4>[ 6.824355] domain_update_iommu_cap+0x20b/0x2c0
<4>[ 6.824360] intel_iommu_attach_device+0x5bd/0x860
<4>[ 6.824365] __iommu_attach_device+0x18/0xe0
<4>[ 6.824370] bus_iommu_probe+0x1f3/0x2d0
<4>[ 6.824376] bus_set_iommu+0x82/0xd0
<4>[ 6.824380] intel_iommu_init+0xe45/0x102a
<4>[ 6.824388] pci_iommu_init+0x9/0x31
<4>[ 6.824394] do_one_initcall+0x53/0x2f0
<4>[ 6.824400] kernel_init_freeable+0x18f/0x1e1
<4>[ 6.824405] kernel_init+0x11/0x120
<4>[ 6.824410] ret_from_fork+0x1f/0x30
<4>[ 6.824414] irq event stamp: 69232
<4>[ 6.824418] hardirqs last enabled at (69232): [<ffffffff81b59274>] _raw_spin_unlock_irqrestore+0x54/0x70
<4>[ 6.824427] hardirqs last disabled at (69231): [<ffffffff81b5901b>] _raw_spin_lock_irqsave+0x4b/0x50
<4>[ 6.824435] softirqs last enabled at (69198): [<ffffffff81e00323>] __do_softirq+0x323/0x48e
<4>[ 6.824443] softirqs last disabled at (69227): [<ffffffff810c1588>] irq_exit_rcu+0xb8/0xe0
<4>[ 6.824451]
other info that might help us debug this:
<4>[ 6.824456] Possible unsafe locking scenario:
<4>[ 6.824460] CPU0
<4>[ 6.824463] ----
<4>[ 6.824465] lock(&domain->lock);
<4>[ 6.824470] <Interrupt>
<4>[ 6.824472] lock(&domain->lock);
<4>[ 6.824477]
*** DEADLOCK ***
<4>[ 6.824481] 1 lock held by swapper/4/0:
<4>[ 6.824485] #0: ffffc90000218ea8 ((&cookie->fq_timer)){+.-.}-{0:0}, at: call_timer_fn+0x0/0x2c0
<4>[ 6.824496]
stack backtrace:
<4>[ 6.824500] CPU: 4 PID: 0 Comm: swapper/4 Not tainted 6.0.0-rc1-CI_DRM_11991-g4753c139edec+ #1
<4>[ 6.824508] Hardware name: Intel(R) Client Systems NUC11TNHi5/NUC11TNBi5, BIOS TNTGL357.0042.2020.1221.1743 12/21/2020
<4>[ 6.824516] Call Trace:
<4>[ 6.824519] <IRQ>
<4>[ 6.824523] dump_stack_lvl+0x56/0x7f
<4>[ 6.824528] mark_lock.part.47+0x8d1/0xdb0
<4>[ 6.824535] __lock_acquire+0x824/0xb70
<4>[ 6.824540] lock_acquire+0xd3/0x310
<4>[ 6.824544] ? iommu_flush_dev_iotlb.part.61+0x23/0x80
<4>[ 6.824550] ? iommu_dma_map_sg+0x400/0x400
<4>[ 6.824555] _raw_spin_lock+0x2a/0x40
<4>[ 6.824559] ? iommu_flush_dev_iotlb.part.61+0x23/0x80
<4>[ 6.824564] iommu_flush_dev_iotlb.part.61+0x23/0x80
<4>[ 6.824569] intel_flush_iotlb_all+0x95/0x110
<4>[ 6.824575] fq_flush_iotlb+0x1d/0x30
<4>[ 6.824578] fq_flush_timeout+0x28/0xc0
<4>[ 6.824583] ? iommu_dma_map_sg+0x400/0x400
<4>[ 6.824587] ? iommu_dma_map_sg+0x400/0x400
<4>[ 6.824591] call_timer_fn+0x9c/0x2c0
<4>[ 6.824596] run_timer_softirq+0x548/0x570
<4>[ 6.824602] __do_softirq+0xda/0x48e
<4>[ 6.824607] irq_exit_rcu+0xb8/0xe0
<4>[ 6.824611] sysvec_apic_timer_interrupt+0x9e/0xc0
<4>[ 6.824617] </IRQ>
<4>[ 6.824619] <TASK>
<4>[ 6.824622] asm_sysvec_apic_timer_interrupt+0x16/0x20
<4>[ 6.824627] RIP: 0010:cpuidle_enter_state+0x104/0x5c0
<4>[ 6.824634] Code: 02 00 00 31 ff e8 4c db 83 ff 45 84 ff 74 12 9c 58 f6 c4 02 0f 85 31 04 00 00 31 ff e8 25 cb 8a ff e8 f0 f3 8e ff fb 45 85 f6 <0f> 88 b9 01 00 00 49 63 d6 4c 2b 24 24 48 8d 04 52 48 8d 04 82 49
<4>[ 6.824647] RSP: 0018:ffffc90000147e88 EFLAGS: 00000202
<4>[ 6.824652] RAX: 0000000000000004 RBX: 0000000000000001 RCX: 0000000000000000
<4>[ 6.824658] RDX: 0000000000000000 RSI: ffffffff823ad288 RDI: ffffffff8234c5e7
<4>[ 6.824663] RBP: ffffe8ffffc2e690 R08: 0000000000000001 R09: 0000000000000001
<4>[ 6.824669] R10: 0000000000000001 R11: ffff8884a003a344 R12: 0000000196c0935d
<4>[ 6.824675] R13: ffffffff827a85e0 R14: 0000000000000001 R15: 0000000000000000
<4>[ 6.824682] ? cpuidle_enter_state+0x100/0x5c0
<4>[ 6.824687] cpuidle_enter+0x24/0x40
<4>[ 6.824692] do_idle+0x253/0x2a0
<4>[ 6.824698] cpu_startup_entry+0x14/0x20
<4>[ 6.824703] start_secondary+0x10f/0x130
<4>[ 6.824709] secondary_startup_64_no_verify+0xce/0xdb
<4>[ 6.824716] </TASK>Edited by Ravi V