https://bugzilla.kernel.org/show_bug.cgi?id=207147 Bug ID: 207147 Summary: USB errors: uhci_hcd 0000:01:00.4: swiotlb buffer is full (sz: 8 bytes) ; iommu=off Product: Drivers Version: 2.5 Kernel Version: 5.6.0.rc6 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: John.p.donnelly@xxxxxxxxxx Regression: No Platform: HP Gen9 and Gen10 servers. This USB device Bus 03 ( usb3 ) is associated with the HP iLO subsystem. When iommu=on the device and virtual keyboard and mouse works : lsusb -t /: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/15p, 480M |__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/2p, 480M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 1: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M When iommu=off the keyboard and mouse are not enumerated: lsusb -t /: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/15p, 480M |__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/2p, 480M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M Device info : [ 4.233918] pci 0000:01:00.4: [103c:3300] type 00 class 0x0c0300 [ 4.235902] pci 0000:01:00.4: reg 0x20: [io 0x1300-0x131f] [ 8.172229] uhci_hcd 0000:01:00.4: UHCI Host Controller [ 8.185583] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1e3c373503e, max_idle_ns: 440795250101 ns [ 8.198841] uhci_hcd 0000:01:00.4: new USB bus registered, assigned bus number 3 [ 8.228336] clocksource: Switched to clocksource tsc [ 8.228355] uhci_hcd 0000:01:00.4: detected 8 ports [ 8.255642] uhci_hcd 0000:01:00.4: port count misdetected? forcing to 2 ports [ 8.269807] uhci_hcd 0000:01:00.4: supports USB remote wakeup [ 8.269833] uhci_hcd 0000:01:00.4: irq 19, io base 0x00001300 [ 8.284303] usb usb3: default language 0x0409 [ 8.284319] usb usb3: udev 1, busnum 3, minor = 256 [ 8.284322] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 5.06 [ 8.299961] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 8.314767] usb usb3: Product: UHCI Host Controller [ 8.328498] usb usb3: Manufacturer: Linux 5.6.0-rc6+ uhci_hcd [ 8.342875] usb usb3: SerialNumber: 0000:01:00.4 [ 8.853062] usb usb4-port3: status 0101, change 0000, 12 Mb/s [ 8.853847] usb 3-1: new full-speed USB device number 2 using uhci_hcd [ 8.869995] uhci_hcd 0000:01:00.4: swiotlb buffer is full (sz: 8 bytes), total 0 (slots), used 0 (slots) [ 8.886593] uhci_hcd 0000:01:00.4: swiotlb buffer is full (sz: 8 bytes), total 0 (slots), used 0 (slots) [ 8.903838] uhci_hcd 0000:01:00.4: swiotlb buffer is full (sz: 8 bytes), total 0 (slots), used 0 (slots) [ 9.074128] ehci-pci 0000:00:1d.0: swiotlb buffer is full (sz: 8 bytes), total 0 (slots), used 0 (slots) [ 9.090870] usb 1-1: device not accepting address 2, error -11 [ 9.105875] hub 5-0:1.0: state 7 ports 6 chg 0000 evt 0000 [ 9.105948] hub 5-0:1.0: hub_suspend [ 9.105957] usb usb5: bus auto-suspend, wakeup 1 [ 9.142840] usb 3-1: device descriptor read/64, error -11 When iommu=on , the devices are enervated : [ 9.149664] uhci_hcd 0000:01:00.4: new USB bus registered, assigned bus number 3 [ 9.163434] uhci_hcd 0000:01:00.4: detected 8 ports [ 9.176561] uhci_hcd 0000:01:00.4: port count misdetected? forcing to 2 ports [ 9.190639] uhci_hcd 0000:01:00.4: supports USB remote wakeup [ 9.190655] uhci_hcd 0000:01:00.4: irq 19, io base 0x00001300 [ 9.204506] uhci_hcd 0000:01:00.4: DMAR: Setting identity map [0x791dc000 - 0x791ddfff] [ 9.220241] uhci_hcd 0000:01:00.4: DMAR: Setting identity map [0x791cb000 - 0x791dbfff] [ 9.233903] uhci_hcd 0000:01:00.4: DMAR: Setting identity map [0x791de000 - 0x791f3fff] [ 9.247398] uhci_hcd 0000:01:00.4: DMAR: Setting identity map [0x791f4000 - 0x791f7fff] [ 9.260767] uhci_hcd 0000:01:00.4: DMAR: 32bit DMA uses non-identity mapping [ 9.274196] usb usb3: default language 0x0409 [ 9.274211] usb usb3: udev 1, busnum 3, minor = 256 [ 9.274214] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 5.06 [ 9.288716] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 9.302288] usb usb3: Product: UHCI Host Controller [ 9.315276] usb usb3: Manufacturer: Linux 5.6.0-rc6+ uhci_hcd [ 9.329689] usb usb3: SerialNumber: 0000:01:00.4 [ 9.342071] usb 1-1: new high-speed USB device number 2 using ehci-pci [ 9.356176] usb usb2-port1: status 0501 change 0001 [ 9.356199] usb usb3: usb_probe_device [ 9.356201] usb usb3: configuration #1 chosen from 1 choice [ 9.356208] usb usb3: adding 3-0:1.0 (config #1, interface 0) [ 10.512162] usbhid 3-1:1.0: usb_probe_interface [ 10.512164] usbhid 3-1:1.0: usb_probe_interface - got id [ 10.513820] input: BMC Virtual Keyboard as /devices/pci0000:00/0000:00:1c.2/0000:01:00.4/usb3/3-1/3-1:1.0/0003:03F0:7029.0001/input/input1 [ 10.595493] hid-generic 0003:03F0:7029.0001: input,hidraw0: USB HID v1.01 Keyboard [BMC Virtual Keyboard ] on usb-0000:01:00.4-1/input0 [ 10.627314] usbhid 3-1:1.1: usb_probe_interface [ 10.627315] usbhid 3-1:1.1: usb_probe_interface - got id [ 10.629630] input: BMC Virtual Keyboard as /devices/pci0000:00/0000:00:1c.2/0000:01:00.4/usb3/3-1/3-1:1.1/0003:03F0:7029.0002/input/input2 [ 10.662296] hid-generic 0003:03F0:7029.0002: input,hidraw1: USB HID v1.01 Mouse [BMC Virtual Keyboard ] on usb-0000:01:00.4-1/input1 [ 10.696057] usbcore: registered new interface driver usbhid ( Complete dmesg will be attached ) -- You are receiving this mail because: You are watching the assignee of the bug.
