Description of problem: Using the updates testing kernel, 2.6.29.1-30.fc10.x86_64, my machine cannot properly detect a Smart-UPS 1000 attached to the system via USB: Apr 18 18:12:37 xback2 kernel: ohci_hcd 0000:00:13.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17 Apr 18 18:12:37 xback2 kernel: ohci_hcd 0000:00:13.1: OHCI Host Controller Apr 18 18:12:37 xback2 kernel: ohci_hcd 0000:00:13.1: new USB bus registered, assigned bus number 3 Apr 18 18:12:37 xback2 kernel: ohci_hcd 0000:00:13.1: irq 17, io mem 0xfe02d000 Apr 18 18:12:37 xback2 kernel: usb usb3: New USB device found, idVendor=1d6b, idProduct=0001 Apr 18 18:12:37 xback2 kernel: usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 Apr 18 18:12:37 xback2 kernel: usb usb3: Product: OHCI Host Controller Apr 18 18:12:37 xback2 kernel: usb usb3: Manufacturer: Linux 2.6.29.1-30.fc10.x86_64 ohci_hcd Apr 18 18:12:37 xback2 kernel: usb usb3: SerialNumber: 0000:00:13.1 Apr 18 18:12:37 xback2 kernel: usb usb3: configuration #1 chosen from 1 choice Apr 18 18:12:37 xback2 kernel: hub 3-0:1.0: USB hub found ... Apr 18 18:12:37 xback2 kernel: usb 3-2: new low speed USB device using ohci_hcd and address 2 Apr 18 18:12:37 xback2 kernel: usb 3-2: New USB device found, idVendor=051d, idProduct=0002 Apr 18 18:12:37 xback2 kernel: usb 3-2: New USB device strings: Mfr=3, Product=1, SerialNumber=2 Apr 18 18:12:37 xback2 kernel: usb 3-2: Product: Smart-UPS 1000 RM FW:669.18.I USB FW:7.3 Apr 18 18:12:37 xback2 kernel: usb 3-2: Manufacturer: American Power Conversion Apr 18 18:12:37 xback2 kernel: usb 3-2: SerialNumber: AS0830132399 Apr 18 18:12:37 xback2 kernel: usb 3-2: configuration #1 chosen from 1 choice Apr 18 18:12:37 xback2 kernel: generic-usb: probe of 0003:051D:0002.0001 failed with error -62 Apr 18 18:12:37 xback2 kernel: hub 3-0:1.0: port 2 disabled by hub (EMI?), re-enabling... Apr 18 18:12:37 xback2 kernel: usb 3-2: USB disconnect, address 2 ... Apr 18 18:12:44 xback2 kernel: hub 3-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? Apr 18 18:12:47 xback2 kernel: hub 3-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? Apr 18 18:12:50 xback2 kernel: hub 3-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? Apr 18 18:12:53 xback2 kernel: hub 3-0:1.0: Cannot enable port 2. Maybe the USB cable is bad? Apr 18 18:12:53 xback2 kernel: hub 3-0:1.0: unable to enumerate USB device on port 2 This device worked fine under kernel-2.6.27.21-170.2.56.fc10.x86_64 Version-Release number of selected component (if applicable): kernel-2.6.29.1-30.fc10.x86_64 Additional info: [root@xback2 ~]# lspci 00:00.0 Host bridge: ATI Technologies Inc RD780 Northbridge only dual slot PCI-e_GFX and HT1 K8 part 00:03.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (external gfx0 port B) 00:0a.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (PCI express gpp port F) 00:12.0 SATA controller: ATI Technologies Inc SB600 Non-Raid-5 SATA 00:13.0 USB Controller: ATI Technologies Inc SB600 USB (OHCI0) 00:13.1 USB Controller: ATI Technologies Inc SB600 USB (OHCI1) 00:13.2 USB Controller: ATI Technologies Inc SB600 USB (OHCI2) 00:13.3 USB Controller: ATI Technologies Inc SB600 USB (OHCI3) 00:13.4 USB Controller: ATI Technologies Inc SB600 USB (OHCI4) 00:13.5 USB Controller: ATI Technologies Inc SB600 USB Controller (EHCI) 00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 14) 00:14.1 IDE interface: ATI Technologies Inc SB600 IDE 00:14.3 ISA bridge: ATI Technologies Inc SB600 PCI to LPC Bridge 00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge 00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] HyperTransport Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] AddressMap 00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] Miscellaneous Control 00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] Link Control 01:00.0 RAID bus controller: 3ware Inc 9650SE SATA-II RAID PCIe (rev 01) 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01) 03:07.0 VGA compatible controller: ATI Technologies Inc 3D Rage LT Pro (rev dc)
That's just a duff cable or chip in the UPS. I don't think I ever saw a stray EMI indication from a hub. It takes some serious noise on the bus to trigger that. Make sure the cable isn't bent or worn.
Sorry - this probably isn't a bug. I restarted everything and it went away. I've switched back to old-fashioned serial!