Re: Expect defunct, kill -9 panics kernel?

On 2/11/07, James Bottomley <[email protected]> wrote:
> Right, now here's a bit of really useful detective work:
>
> In the same piece of disassembly can you see what happens to %r26 ...
> the first argument to __wake_up_common() which is the wait queue?  It
> may be clobbered, but if it isn't by the time we fault we know that
> 0x45f10250 is the address of the wait queue.  If we're incredibly lucky,
> it's a symbol in the vmlinux, can you see if it is (and if it's valid)?
>
> Knowing what the wait queue is will tell us (hopefully) with precision
> where the fault lies.

The value of %r26 is copied to %r6 early on in the function.
The value of %r6 is 0x0000000044ab9c00, but that isn't a function in
the kernel, it looks too high to be code, so I assme it is data?

c.