Hi, 5.11-rc1 is also affected, here is the relevant part of trace from my bananapi-r2: [ 5.792659] mtk-pcie 1a140000.pcie: PCI host bridge to bus 0000:00 [ 5.798879] pci_bus 0000:00: root bus resource [bus 00-ff] [ 5.804412] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] (bus address [0x1a160000-0x1a16ffff]) [ 5.813928] pci_bus 0000:00: root bus resource [mem 0x60000000-0x6fffffff] [ 5.820876] pci 0000:00:00.0: [14c3:0801] type 01 class 0x060400 [ 5.826915] pci 0000:00:00.0: reg 0x14: [mem 0x00000000-0x0000ffff] [ 5.833294] pci 0000:00:00.0: supports D1 [ 5.837315] pci 0000:00:00.0: PME# supported from D0 D1 D3hot [ 5.843550] pci 0000:00:01.0: [14c3:0801] type 01 class 0x060400 [ 5.849598] pci 0000:00:01.0: reg 0x14: [mem 0x00000000-0x0000ffff] [ 5.855995] pci 0000:00:01.0: supports D1 [ 5.860016] pci 0000:00:01.0: PME# supported from D0 D1 D3hot [ 5.868688] PCI: bus0: Fast back to back transfers disabled [ 5.874325] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring [ 5.882392] pci 0000:00:01.0: bridge configuration invalid ([bus 00-00]), reconfiguring [ 5.890648] pci 0000:01:00.0: [14c3:7615] type 00 class 0x000280 [ 5.896700] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x000fffff 64bit] [ 5.933326] PCI: bus1: Fast back to back transfers disabled [ 5.938930] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01 [ 5.945814] pci 0000:02:00.0: [1b21:0611] type 00 class 0x010185 [ 5.951889] pci 0000:02:00.0: reg 0x10: initial BAR value 0x00000000 invalid [ 5.958949] pci 0000:02:00.0: reg 0x10: [io size 0x0008] [ 5.964382] pci 0000:02:00.0: reg 0x14: initial BAR value 0x00000000 invalid [ 5.971454] pci 0000:02:00.0: reg 0x14: [io size 0x0004] [ 5.976869] pci 0000:02:00.0: reg 0x18: initial BAR value 0x00000000 invalid [ 5.983938] pci 0000:02:00.0: reg 0x18: [io size 0x0008] [ 5.989352] pci 0000:02:00.0: reg 0x1c: initial BAR value 0x00000000 invalid [ 5.996424] pci 0000:02:00.0: reg 0x1c: [io size 0x0004] [ 6.001854] pci 0000:02:00.0: reg 0x20: initial BAR value 0x00000000 invalid [ 6.008910] pci 0000:02:00.0: reg 0x20: [io size 0x0010] [ 6.014337] pci 0000:02:00.0: reg 0x24: [mem 0x00000000-0x000001ff] [ 6.020635] pci 0000:02:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref] [ 6.053312] PCI: bus2: Fast back to back transfers disabled [ 6.058912] pci_bus 0000:02: busn_res: [bus 02-ff] end is updated to 02 [ 6.065622] pci 0000:00:00.0: BAR 8: assigned [mem 0x60000000-0x600fffff] [ 6.072448] pci 0000:00:01.0: BAR 8: assigned [mem 0x60100000-0x601fffff] [ 6.079248] pci 0000:00:01.0: BAR 9: assigned [mem 0x60200000-0x602fffff pref] [ 6.086500] pci 0000:00:00.0: BAR 1: assigned [mem 0x60300000-0x6030ffff] [ 6.093318] pci 0000:00:01.0: BAR 1: assigned [mem 0x60310000-0x6031ffff] [ 6.100120] pci 0000:00:01.0: BAR 7: assigned [io 0x1000-0x1fff] [ 6.106255] pci 0000:01:00.0: BAR 0: assigned [mem 0x60000000-0x600fffff 64bit] [ 6.113609] pci 0000:00:00.0: PCI bridge to [bus 01] [ 6.118585] pci 0000:00:00.0: bridge window [mem 0x60000000-0x600fffff] [ 6.125405] pci 0000:02:00.0: BAR 6: assigned [mem 0x60200000-0x6020ffff pref] [ 6.132656] pci 0000:02:00.0: BAR 5: assigned [mem 0x60100000-0x601001ff] [ 6.139458] pci 0000:02:00.0: BAR 4: assigned [io 0x1000-0x100f] [ 6.145579] pci 0000:02:00.0: BAR 0: assigned [io 0x1010-0x1017] [ 6.151699] pci 0000:02:00.0: BAR 2: assigned [io 0x1018-0x101f] [ 6.157807] pci 0000:02:00.0: BAR 1: assigned [io 0x1020-0x1023] [ 6.163927] pci 0000:02:00.0: BAR 3: assigned [io 0x1024-0x1027] [ 6.170034] pci 0000:00:01.0: PCI bridge to [bus 02] [ 6.175035] pci 0000:00:01.0: bridge window [io 0x1000-0x1fff] [ 6.181153] pci 0000:00:01.0: bridge window [mem 0x60100000-0x601fffff] [ 6.187951] pci 0000:00:01.0: bridge window [mem 0x60200000-0x602fffff pref] [ 6.195427] pcieport 0000:00:00.0: enabling device (0140 -> 0142) [ 6.201795] pcieport 0000:00:00.0: PME: Signaling with IRQ 258 [ 6.208053] pcieport 0000:00:01.0: enabling device (0140 -> 0143) [ 6.214395] pcieport 0000:00:01.0: PME: Signaling with IRQ 252 [ 6.220784] ahci 0000:02:00.0: version 3.0 [ 6.220814] ahci 0000:02:00.0: enabling device (0140 -> 0143) [ 6.226705] ------------[ cut here ]------------ [ 6.231380] WARNING: CPU: 0 PID: 33 at include/linux/msi.h:252 pci_msi_setup_msi_irqs.constprop.0+0x78/0x80 [ 6.241167] Modules linked in: [ 6.244235] CPU: 0 PID: 33 Comm: kworker/0:1 Not tainted 5.11.0-rc1-bpi-r2-wifi #1 [ 6.251816] Hardware name: Mediatek Cortex-A7 (Device Tree) [ 6.257395] Workqueue: events deferred_probe_work_func [ 6.262549] Backtrace: [ 6.264999] [<c0deb91c>] (dump_backtrace) from [<c0debce0>] (show_stack+0x20/0x24) [ 6.272598] r7:000000fc r6:60000013 r5:00000000 r4:c15eff8c [ 6.278258] [<c0debcc0>] (show_stack) from [<c0def924>] (dump_stack+0xcc/0xe0) [ 6.285499] [<c0def858>] (dump_stack) from [<c0126c40>] (__warn+0xfc/0x114) [ 6.292477] r7:000000fc r6:c061e14c r5:00000009 r4:c129b5b0 [ 6.298137] [<c0126b44>] (__warn) from [<c0dec3a8>] (warn_slowpath_fmt+0x74/0xd0) [ 6.305641] r7:c061e14c r6:000000fc r5:c129b5b0 r4:00000000 [ 6.311301] [<c0dec338>] (warn_slowpath_fmt) from [<c061e14c>] (pci_msi_setup_msi_irqs.constprop.0+0x78/0x80) [ 6.321241] r8:00000001 r7:00000000 r6:00000001 r5:c30f1800 r4:c318f800 [ 6.327944] [<c061e0d4>] (pci_msi_setup_msi_irqs.constprop.0) from [<c061e7c8>] (__pci_enable_msi_range+0x224/0x39c) [ 6.338483] [<c061e5a4>] (__pci_enable_msi_range) from [<c061f218>] (pci_alloc_irq_vectors_affinity+0x114/0x158) [ 6.348680] r10:c16815f8 r9:c23b1ae0 r8:00000001 r7:00000000 r6:c30f1800 r5:00000001 [ 6.356515] r4:00000002 [ 6.359048] [<c061f104>] (pci_alloc_irq_vectors_affinity) from [<c088195c>] (ahci_init_one+0x500/0x958) [ 6.368468] r9:00000000 r8:c318e200 r7:00000005 r6:c308c940 r5:c30f1800 r4:00000000 [ 6.376215] [<c088145c>] (ahci_init_one) from [<c0614d70>] (pci_device_probe+0xb8/0x14c) [ 6.384331] r10:c16815f8 r9:c1611408 r8:c1611438 r7:00000000 r6:c30f1800 r5:c0fb66a8 [ 6.392166] r4:c30f1880 [ 6.394699] [<c0614cb8>] (pci_device_probe) from [<c07176e4>] (really_probe+0x220/0x50c) [ 6.402813] r9:c1611438 r8:00000000 r7:c16f9ec0 r6:00000000 r5:c16f9eb8 r4:c30f1880 [ 6.410560] [<c07174c4>] (really_probe) from [<c0717a58>] (driver_probe_device+0x88/0x1fc) [ 6.418849] r10:00000000 r9:c31790c0 r8:c16815f8 r7:c30f1880 r6:c23b1cac r5:c1611438 [ 6.426684] r4:c30f1880 [ 6.429217] [<c07179d0>] (driver_probe_device) from [<c0717f58>] (__device_attach_driver+0xa8/0x114) [ 6.438374] r9:c31790c0 r8:c2336410 r7:c30f1880 r6:c23b1cac r5:c1611438 r4:00000001 [ 6.446121] [<c0717eb0>] (__device_attach_driver) from [<c07151ac>] (bus_for_each_drv+0x94/0xe4) [ 6.454928] r7:c30efa40 r6:c0717eb0 r5:c23b1cac r4:00000000 [ 6.460589] [<c0715118>] (bus_for_each_drv) from [<c071740c>] (__device_attach+0x104/0x19c) [ 6.468960] r6:00000000 r5:c30f18c4 r4:c30f1880 [ 6.473577] [<c0717308>] (__device_attach) from [<c07174c0>] (device_attach+0x1c/0x20) [ 6.481515] r6:c238d000 r5:c30f1880 r4:c30f1800 [ 6.486132] [<c07174a4>] (device_attach) from [<c0606300>] (pci_bus_add_device+0x54/0x94) [ 6.494326] [<c06062ac>] (pci_bus_add_device) from [<c060637c>] (pci_bus_add_devices+0x3c/0x80) [ 6.503042] r5:c238d014 r4:c30f1800 [ 6.506617] [<c0606340>] (pci_bus_add_devices) from [<c06063b0>] (pci_bus_add_devices+0x70/0x80) [ 6.515422] r7:c30efa40 r6:c238ec00 r5:c238ec14 r4:c30f0800 [ 6.521082] [<c0606340>] (pci_bus_add_devices) from [<c060a5a4>] (pci_host_probe+0x50/0xa0) [ 6.529454] r7:c30efa40 r6:c238ec00 r5:c238ec0c r4:00000000 [ 6.535114] [<c060a554>] (pci_host_probe) from [<c062d234>] (mtk_pcie_probe+0x188/0x250) [ 6.543228] r7:c30efa40 r6:c30efa4c r5:c30ef800 r4:c30d4b80 [ 6.548889] [<c062d0ac>] (mtk_pcie_probe) from [<c071a7b4>] (platform_probe+0x6c/0xc8) [ 6.556830] r10:c16815f8 r9:c15f8c9c r8:00000000 r7:c16f9ec0 r6:c15f8c9c r5:c2336410 [ 6.564667] r4:00000000 r3:c062d0ac [ 6.568242] [<c071a748>] (platform_probe) from [<c07176e4>] (really_probe+0x220/0x50c) [ 6.576181] r7:c16f9ec0 r6:00000000 r5:c16f9eb8 r4:c2336410 [ 6.581842] [<c07174c4>] (really_probe) from [<c0717a58>] (driver_probe_device+0x88/0x1fc) [ 6.590130] r10:c2336410 r9:c12b6910 r8:c16815f8 r7:c2336410 r6:c23b1e7c r5:c15f8c9c [ 6.597965] r4:c2336410 [ 6.600498] [<c07179d0>] (driver_probe_device) from [<c0717f58>] (__device_attach_driver+0xa8/0x114) [ 6.609655] r9:c12b6910 r8:c16815f8 r7:c2336410 r6:c23b1e7c r5:c15f8c9c r4:00000001 [ 6.617401] [<c0717eb0>] (__device_attach_driver) from [<c07151ac>] (bus_for_each_drv+0x94/0xe4) [ 6.626209] r7:c1606130 r6:c0717eb0 r5:c23b1e7c r4:00000000 [ 6.631870] [<c0715118>] (bus_for_each_drv) from [<c071740c>] (__device_attach+0x104/0x19c) [ 6.640241] r6:00000001 r5:c2336454 r4:c2336410 [ 6.644859] [<c0717308>] (__device_attach) from [<c0717fe0>] (device_initial_probe+0x1c/0x20) [ 6.653405] r6:c2336410 r5:c16063d8 r4:c2315e54 [ 6.658022] [<c0717fc4>] (device_initial_probe) from [<c071635c>] (bus_probe_device+0x94/0x9c) [ 6.666652] [<c07162c8>] (bus_probe_device) from [<c0716924>] (deferred_probe_work_func+0x9c/0xe0) [ 6.675633] r7:c1606130 r6:c160611c r5:c160611c r4:c2315e54 [ 6.681294] [<c0716888>] (deferred_probe_work_func) from [<c0144ec0>] (process_one_work+0x1c8/0x530) [ 6.690452] r10:00000000 r9:c1673d00 r8:00000000 r7:df59b900 r6:df598740 r5:c2383a80 [ 6.698287] r4:c160615c r3:c0716888 [ 6.701862] [<c0144cf8>] (process_one_work) from [<c014545c>] (worker_thread+0x234/0x534) [ 6.710062] r10:df598740 r9:00000008 r8:c1503d00 r7:df598758 r6:c2383a94 r5:df598740 [ 6.717897] r4:c2383a80 [ 6.720430] [<c0145228>] (worker_thread) from [<c014d8dc>] (kthread+0x130/0x158) [ 6.727847] r10:c22410a4 r9:c2383a80 r8:c0145228 r7:c23b0000 r6:c214de8c r5:c23995c0 [ 6.735682] r4:c2241080 [ 6.738216] [<c014d7ac>] (kthread) from [<c0100150>] (ret_from_fork+0x14/0x24) [ 6.745453] Exception stack(0xc23b1fb0 to 0xc23b1ff8) [ 6.750512] 1fa0: 00000000 00000000 00000000 00000000 [ 6.758699] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 6.766885] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 6.773508] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c014d7ac [ 6.781344] r4:c23995c0 r3:00000001 [ 6.784944] ---[ end trace b6842aa211313a7f ]--- [ 6.789572] ------------[ cut here ]------------ [ 6.794205] WARNING: CPU: 0 PID: 33 at include/linux/msi.h:258 free_msi_irqs+0x1c8/0x1cc [ 6.802327] Modules linked in: [ 6.805388] CPU: 0 PID: 33 Comm: kworker/0:1 Tainted: G W 5.11.0-rc1-bpi-r2-wifi #1 [ 6.814358] Hardware name: Mediatek Cortex-A7 (Device Tree) [ 6.819935] Workqueue: events deferred_probe_work_func [ 6.825085] Backtrace: [ 6.827534] [<c0deb91c>] (dump_backtrace) from [<c0debce0>] (show_stack+0x20/0x24) [ 6.835130] r7:00000102 r6:60000013 r5:00000000 r4:c15eff8c [ 6.840790] [<c0debcc0>] (show_stack) from [<c0def924>] (dump_stack+0xcc/0xe0) [ 6.848030] [<c0def858>] (dump_stack) from [<c0126c40>] (__warn+0xfc/0x114) [ 6.855008] r7:00000102 r6:c061e31c r5:00000009 r4:c129b5b0 [ 6.860668] [<c0126b44>] (__warn) from [<c0dec3a8>] (warn_slowpath_fmt+0x74/0xd0) [ 6.868171] r7:c061e31c r6:00000102 r5:c129b5b0 r4:00000000 [ 6.873831] [<c0dec338>] (warn_slowpath_fmt) from [<c061e31c>] (free_msi_irqs+0x1c8/0x1cc) [ 6.882119] r8:00000001 r7:c30f1800 r6:c30f19dc r5:c30f1800 r4:c30f19dc [ 6.888821] [<c061e154>] (free_msi_irqs) from [<c061e870>] (__pci_enable_msi_range+0x2cc/0x39c) [ 6.897541] r10:00000001 r9:ffffffed r8:00000001 r7:00000000 r6:00000001 r5:c30f1800 [ 6.905377] r4:c318f800 r3:00000000 [ 6.908951] [<c061e5a4>] (__pci_enable_msi_range) from [<c061f218>] (pci_alloc_irq_vectors_affinity+0x114/0x158) [ 6.919149] r10:c16815f8 r9:c23b1ae0 r8:00000001 r7:00000000 r6:c30f1800 r5:00000001 [ 6.926984] r4:00000002 [ 6.929517] [<c061f104>] (pci_alloc_irq_vectors_affinity) from [<c088195c>] (ahci_init_one+0x500/0x958) [ 6.938936] r9:00000000 r8:c318e200 r7:00000005 r6:c308c940 r5:c30f1800 r4:00000000 [ 6.946683] [<c088145c>] (ahci_init_one) from [<c0614d70>] (pci_device_probe+0xb8/0x14c) [ 6.954798] r10:c16815f8 r9:c1611408 r8:c1611438 r7:00000000 r6:c30f1800 r5:c0fb66a8 [ 6.962634] r4:c30f1880 [ 6.965166] [<c0614cb8>] (pci_device_probe) from [<c07176e4>] (really_probe+0x220/0x50c) [ 6.973280] r9:c1611438 r8:00000000 r7:c16f9ec0 r6:00000000 r5:c16f9eb8 r4:c30f1880 [ 6.981027] [<c07174c4>] (really_probe) from [<c0717a58>] (driver_probe_device+0x88/0x1fc) [ 6.989316] r10:00000000 r9:c31790c0 r8:c16815f8 r7:c30f1880 r6:c23b1cac r5:c1611438 [ 6.997151] r4:c30f1880 [ 6.999683] [<c07179d0>] (driver_probe_device) from [<c0717f58>] (__device_attach_driver+0xa8/0x114) [ 7.008840] r9:c31790c0 r8:c2336410 r7:c30f1880 r6:c23b1cac r5:c1611438 r4:00000001 [ 7.016587] [<c0717eb0>] (__device_attach_driver) from [<c07151ac>] (bus_for_each_drv+0x94/0xe4) [ 7.025395] r7:c30efa40 r6:c0717eb0 r5:c23b1cac r4:00000000 [ 7.031055] [<c0715118>] (bus_for_each_drv) from [<c071740c>] (__device_attach+0x104/0x19c) [ 7.039427] r6:00000000 r5:c30f18c4 r4:c30f1880 [ 7.044043] [<c0717308>] (__device_attach) from [<c07174c0>] (device_attach+0x1c/0x20) [ 7.051980] r6:c238d000 r5:c30f1880 r4:c30f1800 [ 7.056598] [<c07174a4>] (device_attach) from [<c0606300>] (pci_bus_add_device+0x54/0x94) [ 7.064793] [<c06062ac>] (pci_bus_add_device) from [<c060637c>] (pci_bus_add_devices+0x3c/0x80) [ 7.073509] r5:c238d014 r4:c30f1800 [ 7.077084] [<c0606340>] (pci_bus_add_devices) from [<c06063b0>] (pci_bus_add_devices+0x70/0x80) [ 7.085889] r7:c30efa40 r6:c238ec00 r5:c238ec14 r4:c30f0800 [ 7.091549] [<c0606340>] (pci_bus_add_devices) from [<c060a5a4>] (pci_host_probe+0x50/0xa0) [ 7.099920] r7:c30efa40 r6:c238ec00 r5:c238ec0c r4:00000000 [ 7.105581] [<c060a554>] (pci_host_probe) from [<c062d234>] (mtk_pcie_probe+0x188/0x250) [ 7.113694] r7:c30efa40 r6:c30efa4c r5:c30ef800 r4:c30d4b80 [ 7.119354] [<c062d0ac>] (mtk_pcie_probe) from [<c071a7b4>] (platform_probe+0x6c/0xc8) [ 7.127296] r10:c16815f8 r9:c15f8c9c r8:00000000 r7:c16f9ec0 r6:c15f8c9c r5:c2336410 [ 7.135132] r4:00000000 r3:c062d0ac [ 7.138706] [<c071a748>] (platform_probe) from [<c07176e4>] (really_probe+0x220/0x50c) [ 7.146646] r7:c16f9ec0 r6:00000000 r5:c16f9eb8 r4:c2336410 [ 7.152306] [<c07174c4>] (really_probe) from [<c0717a58>] (driver_probe_device+0x88/0x1fc) [ 7.160594] r10:c2336410 r9:c12b6910 r8:c16815f8 r7:c2336410 r6:c23b1e7c r5:c15f8c9c [ 7.168430] r4:c2336410 [ 7.170962] [<c07179d0>] (driver_probe_device) from [<c0717f58>] (__device_attach_driver+0xa8/0x114) [ 7.180119] r9:c12b6910 r8:c16815f8 r7:c2336410 r6:c23b1e7c r5:c15f8c9c r4:00000001 [ 7.187866] [<c0717eb0>] (__device_attach_driver) from [<c07151ac>] (bus_for_each_drv+0x94/0xe4) [ 7.196672] r7:c1606130 r6:c0717eb0 r5:c23b1e7c r4:00000000 [ 7.202333] [<c0715118>] (bus_for_each_drv) from [<c071740c>] (__device_attach+0x104/0x19c) [ 7.210704] r6:00000001 r5:c2336454 r4:c2336410 [ 7.215321] [<c0717308>] (__device_attach) from [<c0717fe0>] (device_initial_probe+0x1c/0x20) [ 7.223867] r6:c2336410 r5:c16063d8 r4:c2315e54 [ 7.228484] [<c0717fc4>] (device_initial_probe) from [<c071635c>] (bus_probe_device+0x94/0x9c) [ 7.237114] [<c07162c8>] (bus_probe_device) from [<c0716924>] (deferred_probe_work_func+0x9c/0xe0) [ 7.246095] r7:c1606130 r6:c160611c r5:c160611c r4:c2315e54 [ 7.251756] [<c0716888>] (deferred_probe_work_func) from [<c0144ec0>] (process_one_work+0x1c8/0x530) [ 7.260912] r10:00000000 r9:c1673d00 r8:00000000 r7:df59b900 r6:df598740 r5:c2383a80 [ 7.268748] r4:c160615c r3:c0716888 [ 7.272323] [<c0144cf8>] (process_one_work) from [<c014545c>] (worker_thread+0x234/0x534) [ 7.280523] r10:df598740 r9:00000008 r8:c1503d00 r7:df598758 r6:c2383a94 r5:df598740 [ 7.288358] r4:c2383a80 [ 7.290890] [<c0145228>] (worker_thread) from [<c014d8dc>] (kthread+0x130/0x158) [ 7.298306] r10:c22410a4 r9:c2383a80 r8:c0145228 r7:c23b0000 r6:c214de8c r5:c23995c0 [ 7.306141] r4:c2241080 [ 7.308674] [<c014d7ac>] (kthread) from [<c0100150>] (ret_from_fork+0x14/0x24) [ 7.315910] Exception stack(0xc23b1fb0 to 0xc23b1ff8) [ 7.320968] 1fa0: 00000000 00000000 00000000 00000000 [ 7.329155] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 7.337341] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 7.343964] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c014d7ac [ 7.351799] r4:c23995c0 r3:00000001 [ 7.355410] ---[ end trace b6842aa211313a80 ]--- regards Frank
