On 06/19/2014 06:52 PM, Kirill A. Shutemov wrote:
http://marc.info/?l=linux-kernel&m=140319579508104&w=2
Yes, those symptoms look very familiar. The patch should really go in stable
3.15.y.
Thanks.
Ortwin
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On Thu, Jun 19, 2014 at 06:30:38PM +0200, Ortwin Glück wrote:
> Hi,
>
> I was hitting a BUG while running a couple of qemu 2.0 on a 3.15.0 kernel.
> KSM was running. This box uses NUMA with two E5 6-core Xeons.
>
> Linux toaster 3.15.0 #1 SMP PREEMPT Thu Jun 12 14:05:12 CEST 2014 x86_64
> Intel
On Fri, 30 May 2014, Michael Ellerman wrote:
>
> diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
> index 3c1b968..f230a97 100644
> --- a/include/linux/mempolicy.h
> +++ b/include/linux/mempolicy.h
> @@ -175,6 +175,12 @@ static inline int vma_migratable(struct vm_area_struct
> *
On Thu, 2014-05-29 at 14:34 -0400, Naoya Horiguchi wrote:
> On Thu, May 29, 2014 at 06:59:43PM +1000, Michael Ellerman wrote:
> > Applying your patch and running trinity pretty immediately results in the
> > following, which looks related (sys_move_pages() again) ?
> >
> > Unable to handle kernel p
On Thu, 29 May 2014, Naoya Horiguchi wrote:
>
> Curretly hugepage migration is available for all archs which support pmd-level
> hugepage, but testing is done only for x86_64 and there're bugs for other
> archs.
And even for x86_64 I think: the follow_huge_pmd() locking issue I
mentioned. But I
On Thu, 29 May 2014, Michael Ellerman wrote:
>
> Unfortunately I don't know our mm/hugetlb code well enough to give you a good
> answer. Ben had a quick look at our follow_huge_addr() and thought it looked
> "fishy". He suggested something like what we do in gup_pte_range() with
> page_cache_get_s
On Thu, 29 May 2014, Naoya Horiguchi wrote:
> On Wed, May 28, 2014 at 05:33:11PM -0700, Hugh Dickins wrote:
> > On Wed, 28 May 2014, Michael Ellerman wrote:
> > > Hey folks,
> > >
> > > Anyone seen this before? Trinity hit it just now:
> > >
> > > Linux Blade312-5 3.15.0-rc7 #306 SMP Wed May 28 1
On Wed, 2014-05-28 at 17:33 -0700, Hugh Dickins wrote:
> On Wed, 28 May 2014, Michael Ellerman wrote:
> > Linux Blade312-5 3.15.0-rc7 #306 SMP Wed May 28 17:51:18 EST 2014 ppc64
> >
> > [watchdog] 27853 iterations. [F:22642 S:5174 HI:1276]
> > [ cut here ]
> > kernel BUG at
On Wed, 28 May 2014, Michael Ellerman wrote:
> Hey folks,
>
> Anyone seen this before? Trinity hit it just now:
>
> Linux Blade312-5 3.15.0-rc7 #306 SMP Wed May 28 17:51:18 EST 2014 ppc64
>
> [watchdog] 27853 iterations. [F:22642 S:5174 HI:1276]
> [ cut here ]
> kernel BU
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