Messages in this thread | | | Subject | Re: [PATCH 2/3] kvm: x86/mmu: Ensure TDP MMU roots are freed after yield | From | "Maciej S. Szmigiero" <> | Date | Wed, 6 Jan 2021 18:37:24 +0100 |
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On 06.01.2021 18:28, Ben Gardon wrote: > On Wed, Jan 6, 2021 at 1:26 AM Maciej S. Szmigiero > <maciej.szmigiero@oracle.com> wrote: >> >> Thanks for looking at it Ben. >> >> On 06.01.2021 00:38, Ben Gardon wrote: >> (..) >>> >>> +Sean Christopherson, for whom I used a stale email address. >>> . >>> I tested this series by running kvm-unit-tests on an Intel Skylake >>> machine. It did not introduce any new failures. I also ran the >>> set_memory_region_test >> >> It's "memslot_move_test" that is crashing the kernel - a memslot >> move test based on "set_memory_region_test". > > I apologize if I'm being very dense, but I can't find this test > anywhere.
No problem, the reproducer is available here: https://gist.github.com/maciejsszmigiero/890218151c242d99f63ea0825334c6c0 as I stated in my original report.
> Is this something you have in-house but haven't upstreamed > or just the test_move_memory_region(); testcase from > set_memory_region_test? I have a similar memslot-moving-stress-test in > the pipeline I need to send out, but I didn't think such a test > existed yet and my test hadn't caught this issue.
The reproducer at that GitHub link is taken from my KVM memslot test mini-set, itself based on set_memory_region_test.c from KVM selftests. The full mini-set will be posted as soon as I finish it :)
Thanks, Maciej
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