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Centinul
Apprentice
Joined: 28 Jul 2005
Posts: 232
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 Posted: Thu Oct 27, 2005 11:25 pm Post subject: How to Restart USB service |
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| I have a firewall that has an onboard ethernet card and a USB ethernet card. Just recently all the USB ports on the firewall stopped working. How do I go about restarting the USB service? I don't want to have to reboot my machine everytime this happens. Also, what would cause all of the USB ports to fail and make restarting the PC necessary? Thanks! |
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widan
Veteran
Joined: 07 Jun 2005
Posts: 1512
Location: Paris, France
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| Posted: Fri Oct 28, 2005 12:33 am Post subject: Re: How to Restart USB service |
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| Centinul wrote: | | How do I go about restarting the USB service? |
If USB drivers are modular, you can try to unload and reload them. If they are built-in, it's not possible to reset USB like that. But first try unplugging and re-plugging the devices, as it can clear some error conditions in both the hardware and the software.
| Centinul wrote: | | Also, what would cause all of the USB ports to fail and make restarting the PC necessary? |
Maybe excessive power draw on a port ? It can cause the controller to remove electrical power to the port, and sometimes, to all ports. Is it the first time it happened, or is it frequent ? Something unusual in the kernel logs ? |
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Centinul
Apprentice
Joined: 28 Jul 2005
Posts: 232
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| Posted: Fri Oct 28, 2005 1:12 am Post subject: |
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I'm pretty sure the USB support is built into the kernel. As far as this problem it is not the first time it has happened. I checked my kern.log file and this error was there:
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Oct 27 18:29:02 MYPC drivers/usb/net/rtl8150.c: Rx status -84
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There is also another error
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Oct 27 18:29:02 MYPC drivers/usb/net/rtl8150.c: eth1: intr status -84
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Centinul
Apprentice
Joined: 28 Jul 2005
Posts: 232
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| Posted: Sat Nov 19, 2005 4:13 am Post subject: |
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I would like to revive this thread because the problem occured again today. All of a sudden today My desktop behind the firewall lost the internet. So I went to my firewall computer and come to find out the NIC facing the internet was still working because I could ping out of my firewall. BUT, the NIC that faces the internal side of the network was not working. I had to do a "ifconfig eth1 down" and "ifconfig eth1 up" to get that NIC working again. The internal side nice is a USB NIC, Hawking Technologies Model HUF11.
What would be causing this? |
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Kernel & Hardware
