where to look will help. Thanks!
>
> Tested both.
>
> Just CONFIG_MIGRATION + CONFIG_COMPACTION breaks the alpha.
> Just CONFIG_BOUNCE has no effect in 5 tries.
OK, so page migration is problematic. Thanks for confirmation!
Honza
--
Jan Kara
SUSE Labs, CR
ting! Can you narrow down whether the problem is due to
CONFIG_BOUNCE or CONFIG_MIGRATION + CONFIG_COMPACTION? These are two
completely different things so knowing where to look will help. Thanks!
Honza
--
Jan Kara
SUSE Labs, CR
en.
Thanks for information. Yeah, that makes somewhat more sense. Can you ever
see the failure if you disable CONFIG_TRANSPARENT_HUGEPAGE? Because your
findings still seem to indicate that there' some problem with page
migration and Alpha (added MM list to CC).
Honza
--
Jan Kara
SUSE Labs, CR
k device pages we were not able to migrate
previously and that could be causing some unexpected issue. I'll look into
this.
Honza
--
Jan Kara
SUSE Labs, CR
r (and hence
> bugs) within the mm subsystem.
>
> Signed-off-by: Lorenzo Stoakes <lstoa...@gmail.com>
Looks good. You can add:
Reviewed-by: Jan Kara <j...@suse.cz>
Honza
> ---
> drivers/gpu/drm/exynos/exynos
remote_vm(NULL, mm, addr, buf, len,
> + write ? FOLL_WRITE : 0);
> }
>
> /*
> @@ -1871,7 +1873,8 @@ int access_process_vm(struct task_struct *tsk, unsigned
> long addr, void *buf, in
> if (!mm)
> return 0;
>
> - len =
hence
> bugs) within the mm subsystem.
>
> Signed-off-by: Lorenzo Stoakes <lstoa...@gmail.com>
The patch looks good. You can add:
Reviewed-by: Jan Kara <j...@suse.cz>
Honza
> ---
> arch/cris/arch-v32/d
On Tue 18-10-16 14:56:09, Lorenzo Stoakes wrote:
> On Tue, Oct 18, 2016 at 02:54:25PM +0200, Jan Kara wrote:
> > > @@ -1282,7 +1282,7 @@ long get_user_pages(unsigned long start, unsigned
> > > long nr_pages,
> > > int write,
> mm subsystem.
>
> Signed-off-by: Lorenzo Stoakes <lstoa...@gmail.com>
The patch looks good. You can add:
Reviewed-by: Jan Kara <j...@suse.cz>
Honza
--
Jan Kara <j...@suse.com>
SUSE Labs, CR
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he mm subsystem.
>
> Signed-off-by: Lorenzo Stoakes <lstoa...@gmail.com>
Looks good. You can add:
Reviewed-by: Jan Kara <j...@suse.cz>
Honza
--
Jan Kara <j...@suse.com>
SUSE Labs, CR
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