On 12/10/2017 21:36, Mathias Nyman wrote: > You could try booting with xhci_hcd.dyndbg=+p added to the kernel command line. I can't find anything relevant... Hmm. Command line: BOOT_IMAGE=/boot/vmlinuz-linux root=... rw intel_iommu=on xhci_hcd.dyndbg=+p ACPI: DMAR 0x00000000DE2C20E0 000078 (v01 INTEL SNB 00000001 INTL 00000001) DMAR: IOMMU enabled DMAR: Host address width 36 DMAR: DRHD base: 0x000000fed90000 flags: 0x1 DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap c9008020660262 ecap f0105a DMAR: RMRR base: 0x000000dec75000 end: 0x000000dec83fff DMAR-IR: IOAPIC id 2 under DRHD base 0xfed90000 IOMMU 0 DMAR-IR: HPET id 0 under DRHD base 0xfed90000 DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping. DMAR-IR: Enabled IRQ remapping in x2apic mode DMAR: No ATSR found DMAR: dmar0: Using Queued invalidation DMAR: Setting RMRR: DMAR: Setting identity map for device 0000:00:1a.0 [0xdec75000 - 0xdec83fff] DMAR: Setting identity map for device 0000:00:1d.0 [0xdec75000 - 0xdec83fff] DMAR: Prepare 0-16MiB unity mapping for LPC DMAR: Setting identity map for device 0000:00:1f.0 [0x0 - 0xffffff] DMAR: Intel(R) Virtualization Technology for Directed I/O ... iommu: Adding device 0000:03:00.0 to group 11 ... xhci_hcd 0000:03:00.0: xHCI Host Controller xhci_hcd 0000:03:00.0: new USB bus registered, assigned bus number 2 xhci_hcd 0000:03:00.0: xHCI capability registers at ffffc3ed00c99000: xhci_hcd 0000:03:00.0: CAPLENGTH AND HCIVERSION 0x1000020: xhci_hcd 0000:03:00.0: CAPLENGTH: 0x20 xhci_hcd 0000:03:00.0: HCIVERSION: 0x100 xhci_hcd 0000:03:00.0: HCSPARAMS 1: 0x5000420 xhci_hcd 0000:03:00.0: Max device slots: 32 xhci_hcd 0000:03:00.0: Max interrupters: 4 xhci_hcd 0000:03:00.0: Max ports: 5 xhci_hcd 0000:03:00.0: HCSPARAMS 2: 0xfc000031 xhci_hcd 0000:03:00.0: Isoc scheduling threshold: 1 xhci_hcd 0000:03:00.0: Maximum allowed segments in event ring: 3 xhci_hcd 0000:03:00.0: HCSPARAMS 3 0xe70004: xhci_hcd 0000:03:00.0: Worst case U1 device exit latency: 4 xhci_hcd 0000:03:00.0: Worst case U2 device exit latency: 231 xhci_hcd 0000:03:00.0: HCC PARAMS 0x2841eb: xhci_hcd 0000:03:00.0: HC generates 64 bit addresses xhci_hcd 0000:03:00.0: HC hasn't Contiguous Frame ID Capability xhci_hcd 0000:03:00.0: HC can't generate Stopped - Short Package event xhci_hcd 0000:03:00.0: FIXME: more HCCPARAMS debugging xhci_hcd 0000:03:00.0: RTSOFF 0x200: xhci_hcd 0000:03:00.0: xHCI operational registers at ffffc3ed00c99020: xhci_hcd 0000:03:00.0: USBCMD 0x0: xhci_hcd 0000:03:00.0: HC is being stopped xhci_hcd 0000:03:00.0: HC has finished hard reset xhci_hcd 0000:03:00.0: Event Interrupts disabled xhci_hcd 0000:03:00.0: Host System Error Interrupts disabled xhci_hcd 0000:03:00.0: HC has finished light reset xhci_hcd 0000:03:00.0: USBSTS 0x1: xhci_hcd 0000:03:00.0: Event ring is empty xhci_hcd 0000:03:00.0: No Host System Error xhci_hcd 0000:03:00.0: HC is halted xhci_hcd 0000:03:00.0: ffffc3ed00c99420 port status reg = 0x40000ee1 xhci_hcd 0000:03:00.0: ffffc3ed00c99424 port power reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c99428 port link reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c9942c port reserved reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c99430 port status reg = 0x2a0 xhci_hcd 0000:03:00.0: ffffc3ed00c99434 port power reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c99438 port link reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c9943c port reserved reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c99440 port status reg = 0x2a0 xhci_hcd 0000:03:00.0: ffffc3ed00c99444 port power reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c99448 port link reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c9944c port reserved reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c99450 port status reg = 0x2a0 xhci_hcd 0000:03:00.0: ffffc3ed00c99454 port power reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c99458 port link reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c9945c port reserved reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c99460 port status reg = 0x2a0 xhci_hcd 0000:03:00.0: ffffc3ed00c99464 port power reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c99468 port link reg = 0x0 xhci_hcd 0000:03:00.0: ffffc3ed00c9946c port reserved reg = 0x0 xhci_hcd 0000:03:00.0: QUIRK: Resetting on resume xhci_hcd 0000:03:00.0: // Halt the HC xhci_hcd 0000:03:00.0: Resetting HCD xhci_hcd 0000:03:00.0: // Reset the HC DMAR: DRHD: handling fault status reg 3 DMAR: [DMA Read] Request device [03:00.0] fault addr de28a000 [fault reason 01] Present bit in root entry is clear ... xhci_hcd 0000:03:00.0: can't setup: -110 xhci_hcd 0000:03:00.0: USB bus 2 deregistered xhci_hcd 0000:03:00.0: init 0000:03:00.0 fail, -110 xhci_hcd: probe of 0000:03:00.0 failed with error -110 -- Hao Wei -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
