On Wed, 2 Aug 2006, Michal Piotrowski wrote:
> On 02/08/06, [email protected] <[email protected]> wrote:
> > The mm snapshot broken-out-2006-08-02-00-27.tar.gz has been uploaded to
> >
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/mm/broken-out-2006-08-02-00-27.tar.gz
> >
> > It contains the following patches against 2.6.18-rc3:
....
>
> Here is something new, previous mm snapshot was fine
>
> Aug 2 19:56:08 ltg01-fedora kernel: ------------[ cut here ]------------
> Aug 2 19:56:08 ltg01-fedora kernel: kernel BUG at
> /usr/src/linux-work4/mm/shmem.c:1228!
> 1228 BUG_ON(!(vma->vm_flags & VM_CAN_INVALIDATE));
>
> I will revert
> fix-the-race-between-invalidate_inode_pages-and-do_no_page.patch
> fix-the-race-between-invalidate_inode_pages-and-do_no_page-tidy.patch
> and see what will happen.
Rather than reverting those, please add something like (I've not seen
this particular tree) the fixup below - it's easily missed that
ipc/shm.c has its own reference to shmem_nopage. (Last I heard,
the flag was called VM_CAN_INVLD, but it looks like I'm not the
only one averse to unpronounceables.)
Hugh
--- 2.6.18-rc2-mm1/ipc/shm.c 2006-07-27 16:19:18.000000000 +0100
+++ linux/ipc/shm.c 2006-08-02 19:29:46.000000000 +0100
@@ -264,6 +264,7 @@ static struct vm_operations_struct shm_v
.set_policy = shmem_set_policy,
.get_policy = shmem_get_policy,
#endif
+ .vm_flags = VM_CAN_INVALIDATE,
};
static int newseg (struct ipc_namespace *ns, key_t key, int shmflg, size_t size)
-
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