XLlTemac soft lockup BUG

Hugo Villeneuve hugo.villeneuve at lyrtech.com
Wed Apr 16 23:19:34 EST 2008


linuxppc-embedded-bounces+hugo.villeneuve=lyrtech.com at ozlabs.org wrote:
> Hi all,
> 
> I am trying to switch my design from the PLB Temac to the local link
> temac, and i have a problem when trying to run ifconfig in my init
> script.  It gives me a BUG: soft lockup - CPU#0 stuck for 11s!
> [ifconfig:208] Here is the rest of the dump, thanks for your help in
> advance. [  233.114960] eth0: XLlTemac: Options: 0x3fa   
> 
> [  233.118449] eth0: XLlTemac: allocating interrupt 8 for fifo mode.
> 
> [  237.135029] eth0: XLlTemac: We renegotiated the speed to: 100
> 
> [  237.150339] eth0: XLlTemac: speed set to 100Mb/s
> 
> [  244.792140] BUG: soft lockup - CPU#0 stuck for 11s! [ifconfig:204]

Hi,
we had a similar error message, which was caused by us selecting the wrong PHY type in the kernel configuration menu (latest linux-2.6-xlnx-git tree). In fact, we had to modify the lltemac driver to support our PHY (BCM5466). Once we did that, the error message went away.

Hugo V.


Hugo Villeneuve
Hardware developer | Concepteur matériel
Lyrtech
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