Hi folks,
Kernel 2.6.9-rc4, amd64:
If I do insmod ehci_hcd (which triggers some hotplug events), then I get these messages in kern.log:
: ACPI: PCI interrupt 0000:00:02.2[C] -> GSI 11 (level, low) -> IRQ 11 ehci_hcd 0000:00:02.2: nVidia Corporation nForce3 USB 2.0 PCI: Setting latency timer of device 0000:00:02.2 to 64 ehci_hcd 0000:00:02.2: irq 11, pci mem ffffff0000b98000 ehci_hcd 0000:00:02.2: new USB bus registered, assigned bus number 1 PCI: cache line size of 64 is not supported by device 0000:00:02.2 ehci_hcd 0000:00:02.2: USB 2.0 enabled, EHCI 1.00, driver 2004-May-10 hub 1-0:1.0: USB hub found hub 1-0:1.0: 6 ports detected usb 1-3: new high speed USB device using address 2 ub: sizeof ub_scsi_cmd 88 ub_dev 1112 uba: device 2 capacity nsec 50 bsize 512 uba: made changed uba: device 2 capacity nsec 50 bsize 512 uba: device 2 capacity nsec 50 bsize 512 /dev/ub/a:end_request: I/O error, dev uba, sector 0 Buffer I/O error on device uba, logical block 0 end_request: I/O error, dev uba, sector 2 Buffer I/O error on device uba, logical block 1 end_request: I/O error, dev uba, sector 4 Buffer I/O error on device uba, logical block 2 end_request: I/O error, dev uba, sector 6 Buffer I/O error on device uba, logical block 3 end_request: I/O error, dev uba, sector 6 Buffer I/O error on device uba, logical block 3 end_request: I/O error, dev uba, sector 4 Buffer I/O error on device uba, logical block 2 end_request: I/O error, dev uba, sector 2 Buffer I/O error on device uba, logical block 1 end_request: I/O error, dev uba, sector 0 Buffer I/O error on device uba, logical block 0 unable to read partition table /dev/ub/a:end_request: I/O error, dev uba, sector 2 Buffer I/O error on device uba, logical block 1 end_request: I/O error, dev uba, sector 4 Buffer I/O error on device uba, logical block 2 end_request: I/O error, dev uba, sector 6 Buffer I/O error on device uba, logical block 3 end_request: I/O error, dev uba, sector 0 Buffer I/O error on device uba, logical block 0 unable to read partition table usbcore: registered new driver ub usb 1-4: new high speed USB device using address 3
This looks pretty strange. On 2.6.8.1 and 2.6.7 there was no such problem. If ehci_hcd is loaded by hotplug at boot time, then the kernel dies with Aiee.
Any idea? I would be glad to help fixing this problem.
Please keep me on CC;, I haven't subscribed linux-usb-devel.
Many thanx
Harri
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