>-----Original Message-----
>From: [email protected] [mailto:[email protected]]
>Sent: Wednesday, May 15, 2013 3:30 PM
>To: [email protected]
>Subject: [E1000-devel] IGB device support question
>
>Hi,
>
>I'm currently running the 3.0.36 kernel on custom HW using an MPC8347 PPC
>SOC with an Intel RC82540EP gigabit ethernet controller that we're talking
>to with the e1000 driver.  We're seeing a lot of problems with memory (bad
>page table entries, out-of-memory panics, etc.) when we take the interface
>down and back up with ifconfig.
>
>I'm suspicious that our problem is due to using an old driver that has
>memory issues.  We're not in a position to move forward on kernel versions
>right now, so I have a couple of questions I hope you can answer.
>
>1) Does the IGB driver support the RC82540EP?  I'm not finding any obvious
>references to the part in .../drivers/net/ethernet/intel/igb in the 3.9
>tree.
No 82540 is supported by e1000 driver.
>2) If it does, how bad would it be to try and backport to the 3.0.36
>kernel?
There isn't much development into e1000 driver (only few bug fixes) between 
3.0.36 and current stable kernel release. So I am not sure if backporting is 
going to solve the issues. 82540 is old part and in recent years I haven't seen 
anything like you describing i.e. bad page table entries, out-of-memory panics, 
etc.
Please send the panic message and I will look into it. I am guessing this is 
system/board specific, right? Or you have similar issues on more than one type 
of system(s)?

-Tushar


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