Hi,
While testing 6.10-rc1 on a Dell XPS 13 plus 9320 I noticed the following PCI lockdep warnings:
[ 5.688969] vmd 0000:00:0e.0: PCI host bridge to bus 10000:e0
[ 5.688976] pci_bus 10000:e0: root bus resource [bus e0-ff]
[ 5.688978] pci_bus 10000:e0: root bus resource [mem 0x72000000-0x73ffffff]
[ 5.688980] pci_bus 10000:e0: root bus resource [mem 0x6040102000-0x60401fffff 64bit]
[ 5.689056] pci 10000:e0:06.0: [8086:a74d] type 01 class 0x060400 PCIe Root Port
[ 5.689074] pci 10000:e0:06.0: PCI bridge to [bus e1]
[ 5.689079] pci 10000:e0:06.0: bridge window [io 0x0000-0x0fff]
[ 5.689081] pci 10000:e0:06.0: bridge window [mem 0x72000000-0x720fffff]
[ 5.689141] pci 10000:e0:06.0: PME# supported from D0 D3hot D3cold
[ 5.689172] pci 10000:e0:06.0: PTM enabled (root), 4ns granularity
[ 5.690231] pci 10000:e0:06.0: Adding to iommu group 10
[ 5.690293] pci 10000:e0:06.0: Primary bus is hard wired to 0
[ 5.690379] pci 10000:e1:00.0: [15b7:5011] type 00 class 0x010802 PCIe Endpoint
[ 5.690396] pci 10000:e1:00.0: BAR 0 [mem 0x72000000-0x72003fff 64bit]
[ 5.690691] pci 10000:e1:00.0: Adding to iommu group 10
[ 5.690962] pci 10000:e0:06.0: PCI bridge to [bus e1]
[ 5.690971] pci 10000:e0:06.0: Primary bus is hard wired to 0
[ 5.793802] input: VEN_04F3:00 04F3:31D1 Mouse as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-1/i2c-VEN_04F3:00/0018:04F3:31D1.0001/input/input5
[ 5.794265] input: VEN_04F3:00 04F3:31D1 Touchpad as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-1/i2c-VEN_04F3:00/0018:04F3:31D1.0001/input/input6
[ 5.794529] input: VEN_04F3:00 04F3:31D1 as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-1/i2c-VEN_04F3:00/0018:04F3:31D1.0001/input/input8
[ 5.795072] hid-generic 0018:04F3:31D1.0001: input,hidraw0: I2C HID v1.00 Mouse [VEN_04F3:00 04F3:31D1] on i2c-VEN_04F3:00
[ 5.831990] ------------[ cut here ]------------
[ 5.831999] WARNING: CPU: 7 PID: 539 at drivers/pci/pci.c:4886 pci_reset_bus+0x38d/0x3a0
[ 5.832005] Modules linked in: sha512_ssse3 sha256_ssse3 hid_multitouch(+) typec_ucsi sha1_ssse3 dw_dmac intel_ishtp cec vmd(+) typec i2c_hid_acpi i2c_hid wmi pinctrl_tigerlake serio_raw ip6_tables ip_tables fuse
[ 5.832021] CPU: 7 PID: 539 Comm: (udev-worker) Not tainted 6.10.0-rc1+ #21
[ 5.832023] Hardware name: Dell Inc. XPS 9320/01YN3R, BIOS 2.11.0 03/06/2024
[ 5.832025] RIP: 0010:pci_reset_bus+0x38d/0x3a0
[ 5.832027] Code: 29 34 ff ff 4c 89 e7 e8 51 06 7c 00 e9 29 fe ff ff 48 8d bb e0 09 00 00 be ff ff ff ff e8 0b fe 7a 00 85 c0 0f 85 3d fd ff ff <0f> 0b e9 36 fd ff ff 41 bc e7 ff ff ff e9 9f fc ff ff 90 90 90 90
[ 5.832028] RSP: 0018:ffffac8f839c7af8 EFLAGS: 00010246
[ 5.832031] RAX: 0000000000000000 RBX: ffff9d24c1fb3000 RCX: 0000000000000001
[ 5.832033] RDX: 0000000000000000 RSI: ffffffff9e9cc0d4 RDI: ffffffff9ea043bd
[ 5.832034] RBP: ffff9d24c1faf028 R08: 0000000000000001 R09: 0000000000000000
[ 5.832036] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000020
[ 5.832037] R13: ffff9d24c1faf000 R14: 000000000000007f R15: 0000000000000630
[ 5.832039] FS: 00007f32c2adf980(0000) GS:ffff9d2c2f380000(0000) knlGS:0000000000000000
[ 5.832041] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.832042] CR2: 0000557a4c61a130 CR3: 000000010f6c0000 CR4: 0000000000750ef0
[ 5.832044] PKRU: 55555554
[ 5.832045] Call Trace:
[ 5.832046] <TASK>
[ 5.832047] ? __warn.cold+0xb1/0x13e
[ 5.832051] ? pci_reset_bus+0x38d/0x3a0
[ 5.832052] ? report_bug+0xe6/0x170
[ 5.832056] ? handle_bug+0x3c/0x80
[ 5.832059] ? exc_invalid_op+0x13/0x60
[ 5.832062] ? asm_exc_invalid_op+0x16/0x20
[ 5.832070] ? pci_reset_bus+0x38d/0x3a0
[ 5.832072] ? pci_reset_bus+0x385/0x3a0
[ 5.832074] vmd_probe+0x760/0xa30 [vmd]
[ 5.832081] local_pci_probe+0x3e/0x80
[ 5.832084] pci_device_probe+0xaf/0x250
[ 5.832087] really_probe+0xdb/0x340
[ 5.832090] ? pm_runtime_barrier+0x50/0x90
[ 5.832093] ? __pfx___driver_attach+0x10/0x10
[ 5.832095] __driver_probe_device+0x78/0x110
[ 5.832099] driver_probe_device+0x1f/0xa0
[ 5.832103] __driver_attach+0xba/0x1c0
[ 5.832106] bus_for_each_dev+0x68/0xb0
[ 5.832110] bus_add_driver+0x111/0x1f0
[ 5.832112] driver_register+0x6e/0xc0
[ 5.832114] ? __pfx_vmd_drv_init+0x10/0x10 [vmd]
[ 5.832117] do_one_initcall+0x5b/0x3a0
[ 5.832120] ? kmalloc_trace_noprof+0x25c/0x320
[ 5.832125] do_init_module+0x60/0x220
[ 5.832128] __do_sys_init_module+0x15f/0x190
[ 5.832134] do_syscall_64+0x93/0x180
[ 5.832136] ? do_syscall_64+0x9f/0x180
[ 5.832138] ? lockdep_hardirqs_on+0x78/0x100
[ 5.832141] ? do_syscall_64+0x9f/0x180
[ 5.832143] ? do_syscall_64+0x9f/0x180
[ 5.832145] ? do_user_addr_fault+0x392/0x710
[ 5.832147] ? exc_page_fault+0x126/0x260
[ 5.832152] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 5.832155] RIP: 0033:0x7f32c34af57e
[ 5.832159] Code: 48 8b 0d 9d 98 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 6a 98 0c 00 f7 d8 64 89 01 48
[ 5.832160] RSP: 002b:00007ffe33fbb568 EFLAGS: 00000246 ORIG_RAX: 00000000000000af
[ 5.832163] RAX: ffffffffffffffda RBX: 000055beacde5da0 RCX: 00007f32c34af57e
[ 5.832165] RDX: 00007f32c35c707d RSI: 000000000000a509 RDI: 000055beacdf1800
[ 5.832166] RBP: 00007ffe33fbb620 R08: 000055beacdb4010 R09: 0000000000000007
[ 5.832167] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f32c35c707d
[ 5.832168] R13: 0000000000020000 R14: 000055beacde77a0 R15: 000055beacde5e90
[ 5.832173] </TASK>
[ 5.832174] irq event stamp: 25575
[ 5.832175] hardirqs last enabled at (25581): [<ffffffff9d1bdead>] console_unlock+0x10d/0x140
[ 5.832178] hardirqs last disabled at (25586): [<ffffffff9d1bde92>] console_unlock+0xf2/0x140
[ 5.832180] softirqs last enabled at (24952): [<ffffffff9d1177bd>] __irq_exit_rcu+0x9d/0x100
[ 5.832182] softirqs last disabled at (24945): [<ffffffff9d1177bd>] __irq_exit_rcu+0x9d/0x100
[ 5.832184] ---[ end trace 0000000000000000 ]---
[ 5.847273] input: LXT2021:00 29BD:3303 as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-0/i2c-LXT2021:00/0018:29BD:3303.0002/input/input9
[ 5.859415] hid-multitouch 0018:29BD:3303.0002: input,hidraw1: I2C HID v1.00 Device [LXT2021:00 29BD:3303] on i2c-LXT2021:00
[ 5.875251] pxa2xx-spi pxa2xx-spi.3: no DMA channels available, using PIO
[ 5.890877] input: VEN_04F3:00 04F3:31D1 Mouse as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-1/i2c-VEN_04F3:00/0018:04F3:31D1.0001/input/input11
[ 5.891185] input: VEN_04F3:00 04F3:31D1 Touchpad as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-1/i2c-VEN_04F3:00/0018:04F3:31D1.0001/input/input12
[ 5.891354] input: VEN_04F3:00 04F3:31D1 UNKNOWN as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-1/i2c-VEN_04F3:00/0018:04F3:31D1.0001/input/input14
[ 5.891535] hid-multitouch 0018:04F3:31D1.0001: input,hidraw0: I2C HID v1.00 Mouse [VEN_04F3:00 04F3:31D1] on i2c-VEN_04F3:00
[ 5.998855] fbcon: Taking over console
[ 5.998863] =====================================
[ 5.998866] WARNING: bad unlock balance detected!
[ 5.998869] 6.10.0-rc1+ #21 Tainted: G W
[ 5.998873] -------------------------------------
[ 5.998876] (udev-worker)/539 is trying to release lock (10000:e1:00.0) at:
[ 5.998883] [<ffffffff9d964db8>] pci_cfg_access_unlock+0x58/0x70
[ 5.998892] but there are no more locks to release!
[ 5.998894]
other info that might help us debug this:
[ 5.998898] 2 locks held by (udev-worker)/539:
[ 5.998901] #0: ffff9d24c36ee1b0 (&dev->mutex){....}-{3:3}, at: __driver_attach+0xaf/0x1c0
[ 5.998911] #1: ffff9d24c1fb11b0 (&dev->mutex){....}-{3:3}, at: pci_bus_trylock+0x2b/0x100
[ 5.998920]
stack backtrace:
[ 5.998924] CPU: 12 PID: 539 Comm: (udev-worker) Tainted: G W 6.10.0-rc1+ #21
[ 5.998930] Hardware name: Dell Inc. XPS 9320/01YN3R, BIOS 2.11.0 03/06/2024
[ 5.998934] Call Trace:
[ 5.998937] <TASK>
[ 5.998940] dump_stack_lvl+0x68/0x90
[ 5.998945] ? pci_cfg_access_unlock+0x58/0x70
[ 5.998951] lock_release.cold+0x21/0x2e
[ 5.998958] pci_reset_bus+0x132/0x3a0
[ 5.998962] vmd_probe+0x760/0xa30 [vmd]
[ 5.998971] local_pci_probe+0x3e/0x80
[ 5.998975] pci_device_probe+0xaf/0x250
[ 5.998981] really_probe+0xdb/0x340
[ 5.998985] ? pm_runtime_barrier+0x50/0x90
[ 5.998990] ? __pfx___driver_attach+0x10/0x10
[ 5.998994] __driver_probe_device+0x78/0x110
[ 5.998999] driver_probe_device+0x1f/0xa0
[ 5.999004] __driver_attach+0xba/0x1c0
[ 5.999008] bus_for_each_dev+0x68/0xb0
[ 5.999014] bus_add_driver+0x111/0x1f0
[ 5.999019] driver_register+0x6e/0xc0
[ 5.999023] ? __pfx_vmd_drv_init+0x10/0x10 [vmd]
[ 5.999029] do_one_initcall+0x5b/0x3a0
[ 5.999034] ? kmalloc_trace_noprof+0x25c/0x320
[ 5.999041] do_init_module+0x60/0x220
[ 5.999047] __do_sys_init_module+0x15f/0x190
[ 5.999054] do_syscall_64+0x93/0x180
[ 5.999059] ? do_syscall_64+0x9f/0x180
[ 5.999063] ? lockdep_hardirqs_on+0x78/0x100
[ 5.999069] ? do_syscall_64+0x9f/0x180
[ 5.999073] ? do_syscall_64+0x9f/0x180
[ 5.999077] ? do_user_addr_fault+0x392/0x710
[ 5.999081] ? exc_page_fault+0x126/0x260
[ 5.999087] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 5.999094] RIP: 0033:0x7f32c34af57e
[ 5.999099] Code: 48 8b 0d 9d 98 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 6a 98 0c 00 f7 d8 64 89 01 48
[ 5.999109] RSP: 002b:00007ffe33fbb568 EFLAGS: 00000246 ORIG_RAX: 00000000000000af
[ 5.999115] RAX: ffffffffffffffda RBX: 000055beacde5da0 RCX: 00007f32c34af57e
[ 5.999120] RDX: 00007f32c35c707d RSI: 000000000000a509 RDI: 000055beacdf1800
[ 5.999124] RBP: 00007ffe33fbb620 R08: 000055beacdb4010 R09: 0000000000000007
[ 5.999129] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f32c35c707d
[ 5.999133] R13: 0000000000020000 R14: 000055beacde77a0 R15: 000055beacde5e90
[ 5.999140] </TASK>
[ 5.999148] pci 10000:e0:06.0: bridge window [mem 0x72000000-0x720fffff]: assigned
[ 5.999155] pci 10000:e0:06.0: bridge window [io size 0x1000]: can't assign; no space
[ 5.999161] pci 10000:e0:06.0: bridge window [io size 0x1000]: failed to assign
[ 5.999167] pci 10000:e1:00.0: BAR 0 [mem 0x72000000-0x72003fff 64bit]: assigned
[ 5.999180] pci 10000:e0:06.0: PCI bridge to [bus e1]
[ 5.999187] pci 10000:e0:06.0: bridge window [mem 0x72000000-0x720fffff]
[ 5.999211] pci 10000:e1:00.0: can't override BIOS ASPM; OS doesn't have ASPM control
[ 5.999238] pcieport 10000:e0:06.0: can't derive routing for PCI INT D
[ 5.999239] pcieport 10000:e0:06.0: PCI INT D: no GSI
[ 5.999749] pcieport 10000:e0:06.0: PME: Signaling with IRQ 161
[ 5.999847] vmd 0000:00:0e.0: Bound to PCI domain 10000
Regards,
Hans
