Messages in this thread | | | From | Marc Zyngier <> | Subject | Re: [PATCH 0/2] KVM: arm64: Fix sleeping while atomic BUG() on OOM | Date | Tue, 18 Aug 2020 11:34:20 +0100 |
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On Tue, 11 Aug 2020 11:27:23 +0100, Will Deacon wrote: > While stress-testing my arm64 stage-2 page-table rewrite [1], I ran into > a sleeping while atomic BUG() during OOM that I can reproduce with > mainline. > > The problem is that the arm64 page-table code periodically calls > cond_resched_lock() when unmapping the stage-2 page-tables, but in the > case of OOM, this occurs in atomic context. > > [...]
Applied to kvm-arm64/pt-rework-base, thanks!
[1/2] KVM: Pass MMU notifier range flags to kvm_unmap_hva_range() commit: 462a296d8a2004063ab3c6b4df07d6f165786734 [2/2] KVM: arm64: Only reschedule if MMU_NOTIFIER_RANGE_BLOCKABLE is not set commit: 78dcf128f9bb3a6a3950a21cf097cdc48cf3f505
Cheers,
M. -- Without deviation from the norm, progress is not possible.
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