*** pcie_port *** kworker/4:2 420 [004] 384.752905: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 384.752906: probe:pci_bus_write_config_word_2: (ffffffff81427ef0) dev=00:01:0 pos=0x84 value=0x8108 [ 384.752912] pcieport 0000:00:01.0: PME# enabled [ 384.752931] extrace-0175 ex_trace_point : Method Begin [0xffffc90000010ba9:\_SB.PCI0.PEG0._DSW] execution. [ 384.752986] extrace-0175 ex_trace_point : Method End [0xffffc90000010ba9:\_SB.PCI0.PEG0._DSW] execution. kworker/4:2 420 [004] 384.753040: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 384.753041: probe:pci_bus_write_config_word_2: (ffffffff81427ef0) dev=00:01:0 pos=0x84 value=0x10b [ 384.764633] extrace-0175 ex_trace_point : Method Begin [0xffffc90000010aa7:\_SB.PCI0.PEG0.PG00._OFF] execution. ... [ 384.768351] extrace-0175 ex_trace_point : Method Begin [0xffffc9000001550c:\_SB.PCI0.LKDS] execution. [ 384.786792] extrace-0175 ex_trace_point : Method End [0xffffc9000001550c:\_SB.PCI0.LKDS] execution. ... [ 384.813725] extrace-0175 ex_trace_point : Method End [0xffffc90000010aa7:\_SB.PCI0.PEG0.PG00._OFF] execution. [ 384.813730] pcieport 0000:00:01.0: power state changed by ACPI to D3cold kworker/4:2 420 [004] 385.777520: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 386.801701: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 387.825704: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 388.849694: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 389.873687: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 390.897683: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 391.921707: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 *** nouveau *** Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+ [68] MSI [68+2=6a] Message Control for MSI: 64-bit address capable (0x80), MSI Enable (0x01) :80 (7): 64-bit address capable :01 (1): MSI Enable kworker/4:2 420 [004] 446.790914: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=01:00:0 pos=0x6a kworker/4:2 420 [004] 446.790918: probe:pci_bus_write_config_word_2: (ffffffff81427ef0) dev=01:00:0 pos=0x6a value=0x81 [68+4=6c] Message Address: 0 [68+8=70] Message Upper Address: 0 [68+c=74] Message Data: 0 kworker/4:2 420 [004] 446.790921: probe:pci_bus_write_config_dword_2: (ffffffff81427f80) dev=01:00:0 pos=0x6c value=0x0 kworker/4:2 420 [004] 446.790922: probe:pci_bus_write_config_dword_2: (ffffffff81427f80) dev=01:00:0 pos=0x70 value=0x0 kworker/4:2 420 [004] 446.790924: probe:pci_bus_write_config_word_2: (ffffffff81427ef0) dev=01:00:0 pos=0x74 value=0x0 [ pci_save_state reads lots of dwords here ] [04] Command: kworker/4:2 420 [004] 446.790981: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=01:00:0 pos=0x4 kworker/4:2 420 [004] 446.790982: probe:pci_bus_write_config_word_2: (ffffffff81427ef0) dev=01:00:0 pos=0x4 value=0x403 [60] Power Management [60+4=64] Power Management Control/Status Register (PMCSR): 0xb :08 (3): No_Soft_Reset (readonly) :03 (1:0): D3_hot kworker/4:2 420 [004] 446.790984: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=01:00:0 pos=0x64 kworker/4:2 420 [004] 446.790985: probe:pci_bus_write_config_word_2: (ffffffff81427ef0) dev=01:00:0 pos=0x64 value=0xb (+12ms for next message) [80] Power Management [80+4=84] Power Management Control/Status Register (PMCSR): 0x8108 :8000 (15): PME_Status: write-to-clear :0100 (8): PME_En: enable PME# assertion :0008 (3): No_Soft_Reset (readonly) kworker/4:2 420 [004] 446.802721: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 446.802723: probe:pci_bus_write_config_word_2: (ffffffff81427ef0) dev=00:01:0 pos=0x84 value=0x8108 [ 446.802727] pcieport 0000:00:01.0: PME# enabled (observed to set WKEN in ACPI:) [ 446.802742] extrace-0175 ex_trace_point : Method Begin [0xffffc90000010ba9:\_SB.PCI0.PEG0._DSW] execution. [ 446.802781] extrace-0175 ex_trace_point : Method End [0xffffc90000010ba9:\_SB.PCI0.PEG0._DSW] execution. [80+4=84] Power Management Control/Status Register (PMCSR): 0x8108 :0100 (8): PME_En: enable PME# assertion :0008 (3): No_Soft_Reset (readonly) :0003 (1:0): D3_hot kworker/4:2 420 [004] 446.802813: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 446.802814: probe:pci_bus_write_config_word_2: (ffffffff81427ef0) dev=00:01:0 pos=0x84 value=0x10b [ 446.814475] extrace-0175 ex_trace_point : Method Begin [0xffffc90000010aa7:\_SB.PCI0.PEG0.PG00._OFF] execution. ... [ 446.815732] extrace-0175 ex_trace_point : Method Begin [0xffffc9000001550c:\_SB.PCI0.LKDS] execution. [ 446.833310] extrace-0175 ex_trace_point : Method End [0xffffc9000001550c:\_SB.PCI0.LKDS] execution. ... [ 446.863783] extrace-0175 ex_trace_point : Method End [0xffffc90000010aa7:\_SB.PCI0.PEG0.PG00._OFF] execution. [ 446.863788] pcieport 0000:00:01.0: power state changed by ACPI to D3cold kworker/4:2 420 [004] 447.857461: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 448.881491: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 449.905482: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 450.929483: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 451.953471: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 452.977476: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 swapper 0 [000] 453.105699: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:1f:4 pos=0x6 kworker/u16:5 125 [000] 453.105882: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:1f:4 pos=0x6 swapper 0 [004] 453.105917: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:1f:4 pos=0x6 swapper 0 [005] 453.106794: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:1f:4 pos=0x6 ... kworker/4:2 420 [004] 462.193445: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 463.217435: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 464.241430: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84 kworker/4:2 420 [004] 465.265436: probe:pci_bus_read_config_word: (ffffffff81426cb0) dev=00:01:0 pos=0x84