Re: + proc-dont-lock-task_structs-indefinitely-cpuset-fix-2.patch added to -mm tree

Andrew Morton
2006-03-02T07:43:41Z

Paul Jackson <pj@sgi.com> wrote:
>
> > It'd be interesting to see if just the data structure expansion:
>
> Nice guess.
>
> It still crashes on boot.
>

OK. This is awful. I cannot see it.

If someone passes get_cpu_sysdev() a -ve cpu number then ugly things will
happen, but it's unlikely to be that. Pretty sad coding though.

> Unable to handle kernel NULL pointer dereference (address 0000000000000058)
> ...
> ip is at sysfs_create_group+0x30/0x2a0

Are you able to determine which pointer deref this is faulting at? I
couldn't find any fields which look like they're 0x58 bytes into anything.

Thanks for persisting with this.