Messages in this thread | | | Date | Wed, 31 Oct 2018 22:42:08 +0100 | From | Michal Hocko <> | Subject | Re: [PATCH] memory_hotplug: cond_resched in __remove_pages |
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On Wed 31-10-18 12:15:50, Andrew Morton wrote: > On Wed, 31 Oct 2018 13:58:40 +0100 Michal Hocko <mhocko@kernel.org> wrote: > > > From: Michal Hocko <mhocko@suse.com> > > > > We have received a bug report that unbinding a large pmem (>1TB) > > can result in a soft lockup: > > > > ... > > > > It has been reported on an older (4.12) kernel but the current upstream > > code doesn't cond_resched in the hot remove code at all and the given > > range to remove might be really large. Fix the issue by calling cond_resched > > once per memory section. > > > > Worthy of a cc:stable, I suggest?
It is simple enough and we will surely have it in 4.12 based SLES kernels. So I do not really mind cc: stable.
-- Michal Hocko SUSE Labs
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