On Mon, Jun 17, 2019 at 05:57:16PM +1000, Alastair D'Silva wrote:
> I was getting stalls when removing ~1TB of memory.
Would you mind sharing one of those stalls-splats?
I am bit spectic here because as I Michal pointed out, we do cond_resched
once per section removed.
--
Oscar Salvador
SUSE L3
Jiri Kosina ; linux-
> > ker...@vger.kernel.org
> > Subject: Re: [PATCH 4/5] mm/hotplug: Avoid RCU stalls when removing large
> > amounts of memory
> >
> > On Mon 17-06-19 14:36:30, Alastair D'Silva wrote:
> > > From: Alastair D'Silva
> &g
Thomas Gleixner ; Andrew Morton
> ; Mike Rapoport ;
> Baoquan He ; David Hildenbrand ;
> Josh Poimboeuf ; Pavel Tatashin
> ; Juergen Gross ; Oscar
> Salvador ; Jiri Kosina ; linux-
> ker...@vger.kernel.org
> Subject: Re: [PATCH 4/5] mm/hotplug: Avoid RCU stalls when removing la
On Mon 17-06-19 14:36:30, Alastair D'Silva wrote:
> From: Alastair D'Silva
>
> When removing sufficiently large amounts of memory, we trigger RCU stall
> detection. By periodically calling cond_resched(), we avoid bogus stall
> warnings.
>
> Signed-off-by: Alastair D'Silva
> ---
> mm/memory_
On Mon, 2019-06-17 at 09:53 +0300, Mike Rapoport wrote:
> On Mon, Jun 17, 2019 at 02:36:30PM +1000, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > When removing sufficiently large amounts of memory, we trigger RCU
> > stall
> > detection. By periodically calling cond_resched(), we avo
On Mon, Jun 17, 2019 at 02:36:30PM +1000, Alastair D'Silva wrote:
> From: Alastair D'Silva
>
> When removing sufficiently large amounts of memory, we trigger RCU stall
> detection. By periodically calling cond_resched(), we avoid bogus stall
> warnings.
>
> Signed-off-by: Alastair D'Silva
> ---
From: Alastair D'Silva
When removing sufficiently large amounts of memory, we trigger RCU stall
detection. By periodically calling cond_resched(), we avoid bogus stall
warnings.
Signed-off-by: Alastair D'Silva
---
mm/memory_hotplug.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mm/me
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