Re: kernel unaligned acc on Alpha

[Måns Rullgård]

Marc Giger <gigerstyle@xxxxxx> writes:

> Hi All,
>
> I have a lot of unaligned accesses in kernel space:
>
> kernel unaligned acc    : 2191330
> (pc=fffffffc002557d8,va=fffffffc00256059)
>
> It seems to be located in the networking part (iptables?) from the
> kernel. Can someone please help me how to find the location of these
> uac's? I already have recompiled the kernel with debugging enabled and
> tried to debug it with gdb. 

Find the matching function in System.map.  Look for the entry with the
highest address less than or equal to the pc value.

> Another question: What's the meaning of va?

It's the virtual memory address being accessed.  The va value is
rather close to the pc, so I would guess that it is some static data
from the same source file as the function that is being accessed.

-- 
Måns Rullgård
mru@xxxxxx

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