I get error messages if I insert to the USB port an Inside Out Edge port/421 on FC2, kernel 2.6.8-1.521. I have also tried kernel 2.6.8-1 from kernel.org, but that time, I didn't get this errors. >From the log after inserting Edgeport/421 with FC2 kernel 2.6.8-1.521: Notice this line: Unable to handle kernel paging request at virtual address 009eea9c Oct 11 09:29:56 fox kernel: USB Universal Host Controller Interface driver v2.2 Oct 11 09:29:56 fox kernel: USB Universal Host Controller Interface driver v2.2 Oct 11 09:29:56 fox kernel: PCI: Found IRQ 9 for device 0000:00:07.2 Oct 11 09:29:56 fox kernel: PCI: Found IRQ 9 for device 0000:00:07.2 Oct 11 09:29:56 fox kernel: PCI: Sharing IRQ 9 with 0000:00:0b.0 Oct 11 09:29:56 fox kernel: PCI: Sharing IRQ 9 with 0000:00:0b.0 Oct 11 09:29:56 fox kernel: uhci_hcd 0000:00:07.2: UHCI Host Controller Oct 11 09:29:56 fox kernel: uhci_hcd 0000:00:07.2: UHCI Host Controller Oct 11 09:29:56 fox kernel: uhci_hcd 0000:00:07.2: irq 9, io base 0000d000 Oct 11 09:29:56 fox kernel: uhci_hcd 0000:00:07.2: irq 9, io base 0000d000 Oct 11 09:29:56 fox kernel: uhci_hcd 0000:00:07.2: new USB bus registered, assigned bus number 1 Oct 11 09:29:56 fox kernel: uhci_hcd 0000:00:07.2: new USB bus registered, assigned bus number 1 Oct 11 09:29:56 fox kernel: hub 1-0:1.0: USB hub found Oct 11 09:29:56 fox kernel: hub 1-0:1.0: USB hub found Oct 11 09:29:56 fox kernel: hub 1-0:1.0: 2 ports detected Oct 11 09:29:56 fox kernel: hub 1-0:1.0: 2 ports detected Oct 11 09:30:35 fox kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for Generic Oct 11 09:30:35 fox kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for Generic Oct 11 09:30:35 fox kernel: usbcore: registered new driver usbserial_generic Oct 11 09:30:35 fox kernel: usbcore: registered new driver usbserial_generic Oct 11 09:30:35 fox kernel: usbcore: registered new driver usbserial Oct 11 09:30:35 fox kernel: usbcore: registered new driver usbserial Oct 11 09:30:35 fox kernel: drivers/usb/serial/usb-serial.c: USB Serial Driver core v2.0 Oct 11 09:30:35 fox kernel: drivers/usb/serial/usb-serial.c: USB Serial Driver core v2.0 Oct 11 09:30:35 fox kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for Edgeport 2 port adapter Oct 11 09:30:35 fox kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for Edgeport 2 port adapter Oct 11 09:30:35 fox kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for Edgeport 4 port adapter Oct 11 09:30:35 fox kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for Edgeport 4 port adapter Oct 11 09:30:35 fox kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for Edgeport 8 port adapter Oct 11 09:30:35 fox kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for Edgeport 8 port adapter Oct 11 09:30:35 fox kernel: usbcore: registered new driver io_edgeport Oct 11 09:30:35 fox kernel: usbcore: registered new driver io_edgeport Oct 11 09:30:35 fox kernel: drivers/usb/serial/io_edgeport.c: Edgeport USB Serial Driver v2.6-ionetworks Oct 11 09:30:35 fox kernel: drivers/usb/serial/io_edgeport.c: Edgeport USB Serial Driver v2.6-ionetworks Oct 11 09:30:58 fox kernel: usb 1-2: new full speed USB device using address 2 Oct 11 09:30:58 fox kernel: usb 1-2: new full speed USB device using address 2 Oct 11 09:30:59 fox kernel: usb 1-2: device not accepting address 2, error -71 Oct 11 09:30:59 fox kernel: usb 1-2: device not accepting address 2, error -71 Oct 11 09:30:59 fox kernel: usb 1-2: new full speed USB device using address 3 Oct 11 09:30:59 fox kernel: usb 1-2: new full speed USB device using address 3 Oct 11 09:30:59 fox kernel: hub 1-2:1.0: USB hub found Oct 11 09:30:59 fox kernel: hub 1-2:1.0: USB hub found Oct 11 09:30:59 fox kernel: hub 1-2:1.0: 7 ports detected Oct 11 09:30:59 fox kernel: hub 1-2:1.0: 7 ports detected Oct 11 09:31:01 fox kernel: usb 1-2.1: new full speed USB device using address 4 Oct 11 09:31:01 fox kernel: usb 1-2.1: new full speed USB device using address 4 Oct 11 09:31:01 fox kernel: io_edgeport 1-2.1:1.0: Edgeport 2 port adapter converter detected Oct 11 09:31:01 fox kernel: io_edgeport 1-2.1:1.0: Edgeport 2 port adapter converter detected Oct 11 09:31:01 fox kernel: drivers/usb/serial/io_edgeport.c: get_string - USB String ID = 1 Oct 11 09:31:01 fox kernel: drivers/usb/serial/io_edgeport.c: get_string - USB String ID = 2 Oct 11 09:31:02 fox kernel: usb 1-2.1: Inside Out Network Edgeport/421 detected Oct 11 09:31:02 fox kernel: usb 1-2.1: Inside Out Network Edgeport/421 detected Oct 11 09:31:02 fox kernel: drivers/usb/serial/io_edgeport.c: getting manufacturer descriptor Oct 11 09:31:02 fox kernel: drivers/usb/serial/io_edgeport.c: rom_read - ff, 7c00, 960 Oct 11 09:31:03 fox kernel: drivers/usb/serial/io_edgeport.c: **Manufacturer Descriptor Oct 11 09:31:03 fox kernel: drivers/usb/serial/io_edgeport.c: RomSize: 8K Oct 11 09:31:03 fox kernel: drivers/usb/serial/io_edgeport.c: RamSize: 32K Oct 11 09:31:03 fox kernel: drivers/usb/serial/io_edgeport.c: CpuRev: 1 Oct 11 09:31:03 fox kernel: drivers/usb/serial/io_edgeport.c: BoardRev: 1 Oct 11 09:31:03 fox kernel: drivers/usb/serial/io_edgeport.c: NumPorts: 2 Oct 11 09:31:03 fox kernel: drivers/usb/serial/io_edgeport.c: DescDate: 3/17/1999 Oct 11 09:31:03 fox kernel: drivers/usb/serial/io_edgeport.c: SerialNumber: V13083718 Oct 11 09:31:03 fox kernel: drivers/usb/serial/io_edgeport.c: AssemblyNumber: 350-1004-11-A Oct 11 09:31:03 fox kernel: Unable to handle kernel paging request at virtual address 009eea9c Oct 11 09:31:03 fox kernel: Unable to handle kernel paging request at virtual address 009eea9c Oct 11 09:31:03 fox kernel: printing eip: Oct 11 09:31:03 fox kernel: printing eip: Oct 11 09:31:03 fox kernel: 009eea9c Oct 11 09:31:03 fox kernel: 009eea9c Oct 11 09:31:03 fox kernel: *pde = 00000000 Oct 11 09:31:03 fox kernel: *pde = 00000000 Oct 11 09:31:03 fox kernel: Oops: 0000 [#1] Oct 11 09:31:03 fox kernel: Oops: 0000 [#1] Oct 11 09:31:03 fox kernel: Modules linked in: io_edgeport usbserial uhci_hcd ipt_LOG ipt_mac ipt_MARK ipt_limit ipt_mark ip_nat_irc ip_nat_ftp ip_conntrack_irc ip_conntrack_ftp iptable_nat iptable_mangle pcspkr tun md5 ipv6 parport_pc lp parport autofs4 irlan irda crc_ccitt 3c59x ipt_REJECT ipt_state ip_conntrack iptable_filter ip_tables vfat nls_cp850 msdos fat dm_mod Oct 11 09:31:03 fox kernel: Modules linked in: io_edgeport usbserial uhci_hcd ipt_LOG ipt_mac ipt_MARK ipt_limit ipt_mark ip_nat_irc ip_nat_ftp ip_conntrack_irc ip_conntrack_ftp iptable_nat iptable_mangle pcspkr tun md5 ipv6 parport_pc lp parport autofs4 irlan irda crc_ccitt 3c59x ipt_REJECT ipt_state ip_conntrack iptable_filter ip_tables vfat nls_cp850 msdos fat dm_mod Oct 11 09:31:03 fox kernel: CPU: 0 Oct 11 09:31:03 fox kernel: CPU: 0 Oct 11 09:31:03 fox kernel: EIP: 0060:[<009eea9c>] Not tainted Oct 11 09:31:03 fox kernel: EIP: 0060:[<009eea9c>] Not tainted Oct 11 09:31:03 fox kernel: EFLAGS: 00010213 (2.6.8-1.521custom) Oct 11 09:31:03 fox kernel: EFLAGS: 00010213 (2.6.8-1.521custom) Oct 11 09:31:03 fox kernel: EIP is at 0x9eea9c Oct 11 09:31:03 fox kernel: EIP is at 0x9eea9c Oct 11 09:31:03 fox kernel: eax: 21f2bdcc ebx: 1d4c8000 ecx: ffffffff edx: 00000000 Oct 11 09:31:03 fox kernel: eax: 21f2bdcc ebx: 1d4c8000 ecx: ffffffff edx: 00000000 Oct 11 09:31:03 fox kernel: esi: 21f2bdcc edi: 1d4c8490 ebp: 1547c800 esp: 21f2bdcc Oct 11 09:31:03 fox kernel: esi: 21f2bdcc edi: 1d4c8490 ebp: 1547c800 esp: 21f2bdcc Oct 11 09:31:03 fox kernel: ds: 007b es: 007b ss: 0068 Oct 11 09:31:03 fox kernel: ds: 007b es: 007b ss: 0068 Oct 11 09:31:03 fox kernel: Process khubd (pid: 6, threadinfo=21f2b000 task=03539690) Oct 11 09:31:03 fox kernel: Process khubd (pid: 6, threadinfo=21f2b000 task=03539690) Oct 11 09:31:03 fox kernel: Stack: 2d303533 34303031 2d31312d 00000041 0235cc37 00000246 02118a08 00000013 Oct 11 09:31:03 fox kernel: Stack: 2d303533 34303031 2d31312d 00000041 0235cc37 00000246 02118a08 00000013 Oct 11 09:31:03 fox kernel: 00000013 1d4c8000 229eef24 229f0b14 022bd54b 1547c924 1d4c8000 15fc1f60 Oct 11 09:31:03 fox kernel: 00000013 1d4c8000 229eef24 229f0b14 022bd54b 1547c924 1d4c8000 15fc1f60 Oct 11 09:31:03 fox kernel: 21fc8a00 229fe5a0 15fc1de0 00000001 229cd4b2 00000000 00000000 00000002 Oct 11 09:31:03 fox kernel: 21fc8a00 229fe5a0 15fc1de0 00000001 229cd4b2 00000000 00000000 00000002 Oct 11 09:31:03 fox kernel: Call Trace: Oct 11 09:31:03 fox kernel: Call Trace: Oct 11 09:31:03 fox kernel: [<02118a08>] printk+0xfc/0x106 Oct 11 09:31:03 fox kernel: [<02118a08>] printk+0xfc/0x106 Oct 11 09:31:03 fox kernel: [<229eef24>] edge_startup+0xd0/0x237 [io_edgeport] Oct 11 09:31:03 fox kernel: [<229eef24>] edge_startup+0xd0/0x237 [io_edgeport] Oct 11 09:31:03 fox kernel: [<229cd4b2>] usb_serial_probe+0x8b7/0xa57 [usbserial] Oct 11 09:31:03 fox kernel: [<229cd4b2>] usb_serial_probe+0x8b7/0xa57 [usbserial] Oct 11 09:31:03 fox kernel: [<0218450f>] inode_doinit_with_dentry+0x38/0x57d Oct 11 09:31:03 fox kernel: [<0218450f>] inode_doinit_with_dentry+0x38/0x57d Oct 11 09:31:03 fox kernel: [<021549e5>] d_instantiate+0x3f/0x42 Oct 11 09:31:03 fox kernel: [<021549e5>] d_instantiate+0x3f/0x42 Oct 11 09:31:03 fox kernel: [<0216ee55>] sysfs_create+0x82/0xa9 Oct 11 09:31:03 fox kernel: [<0216ee55>] sysfs_create+0x82/0xa9 Oct 11 09:31:03 fox kernel: [<0216ef90>] init_file+0x0/0x1b Oct 11 09:31:03 fox kernel: [<0216ef90>] init_file+0x0/0x1b Oct 11 09:31:03 fox kernel: [<0221fbb9>] usb_probe_interface+0x33/0x3b Oct 11 09:31:03 fox kernel: [<0221fbb9>] usb_probe_interface+0x33/0x3b Oct 11 09:31:03 fox kernel: [<021e46cd>] bus_match+0x27/0x45 Oct 11 09:31:03 fox kernel: [<021e46cd>] bus_match+0x27/0x45 Oct 11 09:31:03 fox kernel: [<021e4728>] device_attach+0x3d/0x77 Oct 11 09:31:03 fox kernel: [<021e4728>] device_attach+0x3d/0x77 Oct 11 09:31:03 fox kernel: [<021e4946>] bus_add_device+0x51/0x88 Oct 11 09:31:03 fox kernel: [<021e4946>] bus_add_device+0x51/0x88 Oct 11 09:31:03 fox kernel: [<021e3bbe>] device_add+0x71/0xf1 Oct 11 09:31:03 fox kernel: [<021e3bbe>] device_add+0x71/0xf1 Oct 11 09:31:03 fox kernel: [<02224f33>] usb_set_configuration+0x2dc/0x32d Oct 11 09:31:03 fox kernel: [<02224f33>] usb_set_configuration+0x2dc/0x32d Oct 11 09:31:03 fox kernel: [<02221592>] usb_new_device+0xb3/0x10f Oct 11 09:31:03 fox kernel: [<02221592>] usb_new_device+0xb3/0x10f Oct 11 09:31:03 fox kernel: [<02221fa3>] hub_port_connect_change+0x248/0x2c6 Oct 11 09:31:03 fox kernel: [<02221fa3>] hub_port_connect_change+0x248/0x2c6 Oct 11 09:31:03 fox kernel: [<0222222e>] hub_events+0x20d/0x2b6 Oct 11 09:31:03 fox kernel: [<0222222e>] hub_events+0x20d/0x2b6 Oct 11 09:31:03 fox kernel: [<022222d7>] hub_thread+0x0/0xe5 Oct 11 09:31:03 fox kernel: [<022222d7>] hub_thread+0x0/0xe5 Oct 11 09:31:03 fox kernel: [<022222f6>] hub_thread+0x1f/0xe5 Oct 11 09:31:03 fox kernel: [<022222f6>] hub_thread+0x1f/0xe5 Oct 11 09:31:03 fox kernel: [<02116b51>] autoremove_wake_function+0x0/0x2d Oct 11 09:31:03 fox kernel: [<02116b51>] autoremove_wake_function+0x0/0x2d Oct 11 09:31:03 fox kernel: [<022222d7>] hub_thread+0x0/0xe5 Oct 11 09:31:03 fox kernel: [<022222d7>] hub_thread+0x0/0xe5 Oct 11 09:31:03 fox kernel: [<02116b51>] autoremove_wake_function+0x0/0x2d Oct 11 09:31:03 fox kernel: [<02116b51>] autoremove_wake_function+0x0/0x2d Oct 11 09:31:03 fox kernel: [<021041d9>] kernel_thread_helper+0x5/0xb Oct 11 09:31:03 fox kernel: [<021041d9>] kernel_thread_helper+0x5/0xb Oct 11 09:31:03 fox kernel: Code: Bad EIP value. Oct 11 09:31:03 fox kernel: Code: Bad EIP value. What to do? Lars