Linus Torvalds wrote:
>
> On Fri, 5 Jul 2002, Andrew Morton wrote:
> >
> > The box died, but not due to rmap. We have a lock ranking
> > bug:
> >
> > do_exit
> > ->mmput
> > ->exit_mmap page_table_lock
> > ->removed_shared_vm_struct
> > ->lock_vma_mappings i_shared_lock
>
> I _think_ we should just move the remove_shared_vm_struct() down into the
> case where we're closing the mapping, ie something like the appended.
>
> That way we _only_ do the actual page table stuff under the page table
> lock, and do all the generic VM/FS stuff outside the lock.
>
> Comments?
That is basically what do_munmap() does. But I'm quite unfamiliar
with the locking in there.
-
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sun Jul 07 2002 - 22:00:17 EST