SIOCSIFFLAGS: Device or resource busy

[Viktor Konkov]

I installed RedHat 5.3 on PloLian ML370 (S/N USE904N35C) and got an error when boot or trying to activate eth0 network card.
Error:
SIOCSIIFFLAGS: Device or resource busy

[Matti_Kurkela]

The network-related IOCTL call returned an error... which means there might be something wrong with the driver of the network card.

Please examine the kernel message buffer (you can view it with command "dmesg | less"). Does it contain any eth0-related error messages?

MK

[Viktor Konkov]

Thanks for your reply Matti. I don't think it's a driver because I have two adentical network cards in and second one works just fine. Any other ideas?

[Matti_Kurkela]

OK. Then it might be a hardware problem.

There is only a limited set of error codes the driver can report to the user-space utilities. "Device or resource busy" (error code "EBUSY") is not very specific, so very little information can be gleaned about it alone.

If the driver wants to report a more verbose description of the problem, the report must go through the kernel logging subsystem... which means it will show up in the dmesg listing.

If the problem is hardware- or driver-related, the dmesg listing usually contains more detailed information about it.

MK