linux-kernel - [PATCH v4 0/2] KVM: selftests: fix races in dirty log test

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Date:   Tue, 20 Apr 2021 11:39:27 -0400
From:   Peter Xu <peterx@...hat.com>
To:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Paolo Bonzini <pbonzini@...hat.com>, peterx@...hat.com,
        Sean Christopherson <seanjc@...gle.com>,
        Andrew Jones <drjones@...hat.com>
Subject: [PATCH v4 0/2] KVM: selftests: fix races in dirty log test

v4:
- add missing vcpu_handle_sync_stop() call in dirty ring test

The other solution of patch 2 is here [1]

I got another report that there seems to still be a race, but that one seems
extremely hard to trigger, even so far we don't know whether that could be
ARM-only.  Since current fix should make sense already and fix real problems,
IMHO we don't need to wait for that.

Paolo, I still kept the 2nd patch just for completeness, but feel free to
ignore the 2nd patch if you prefer the other version, and I'll follow your
preference.

Thanks!

[1] https://lore.kernel.org/kvm/20210420081614.684787-1-pbonzini@redhat.com/

Peter Xu (2):
  KVM: selftests: Sync data verify of dirty logging with guest sync
  KVM: selftests: Wait for vcpu thread before signal setup

 tools/testing/selftests/kvm/dirty_log_test.c | 70 +++++++++++++++++---
 1 file changed, 59 insertions(+), 11 deletions(-)

-- 
2.26.2