Re: 2.6.10-rc1-mm3

Andi Kleen
2004-11-05T10:45:51Z

On Fri, Nov 05, 2004 at 11:22:04AM +0100, Ingo Molnar wrote:
>
> * Lorenzo Allegrucci <l_allegrucci@yahoo.it> wrote:
>
> > On Friday 05 November 2004 09:13, Andrew Morton wrote:
> > >
> > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10-rc1/2.6.10-rc1-mm3/
> >
> > ------------[ cut here ]------------
> > kernel BUG at mm/memory.c:156!
>
> > Process shmt04 (pid: 4854, threadinfo=dca51000 task=de374510)
>
> reproducible here too, just running LTP's shmt04 directly triggers it
> immediately. Looks like there's interaction of 4-level pagetables with
> ipc/shm.c or mm/shmem.c.

I tested LTP at one point on i386/x86-64 and and it didn't oops for me.
Perhaps I messed up a later merge. Will investigate.

-Andi