From: Sean Christopherson <seanjc@google.com>
To: Michal Luczaj <mhal@rbox.co>
Cc: kvm@vger.kernel.org, pbonzini@redhat.com
Subject: Re: [PATCH 8/8] KVM: x86: Fix NULL pointer dereference in kvm_xen_set_evtchn_fast()
Date: Thu, 13 Oct 2022 00:22:20 +0000 [thread overview]
Message-ID: <Y0daPIFwmosxV/NO@google.com> (raw)
In-Reply-To: <Y0SquPNxS5AOGcDP@google.com>
On Mon, Oct 10, 2022, Sean Christopherson wrote:
> On Wed, Sep 21, 2022, Michal Luczaj wrote:
> If this fixes things on your end (I'll properly test tomorrow too), I'll post a
> v2 of the entire series. There are some cleanups that can be done on top, e.g.
> I think we should drop kvm_gpc_unmap() entirely until there's actually a user,
> because it's not at all obvious that it's (a) necessary and (b) has desirable
> behavior.
Sorry for the delay, I initially missed that you included a selftest for the race
in the original RFC. The kernel is no longer exploding, but the test is intermittently
soft hanging waiting for the "IRQ". I'll debug and hopefully post tomorrow.
next prev parent reply other threads:[~2022-10-13 0:30 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-16 0:54 [RFC PATCH 0/4] KVM: x86/xen: shinfo cache lock corruption Michal Luczaj
2022-09-16 0:54 ` [RFC PATCH 1/4] KVM: x86/xen: Ensure kvm_xen_set_evtchn_fast() can use shinfo_cache Michal Luczaj
2022-09-16 0:54 ` [RFC PATCH 2/4] KVM: x86/xen: Ensure kvm_xen_schedop_poll() " Michal Luczaj
2022-09-16 0:54 ` [RFC PATCH 3/4] KVM: x86/xen: Disallow gpc locks reinitialization Michal Luczaj
2022-09-16 17:12 ` Sean Christopherson
2022-09-18 23:13 ` Michal Luczaj
2022-09-21 2:01 ` [PATCH 0/8] KVM: x86: gfn_to_pfn_cache cleanups and a fix Michal Luczaj
2022-09-21 2:01 ` [PATCH 1/8] KVM: x86: Add initializer for gfn_to_pfn_cache Michal Luczaj
2022-10-10 23:38 ` Sean Christopherson
2022-09-21 2:01 ` [PATCH 2/8] KVM: x86: Shorten gfn_to_pfn_cache function names Michal Luczaj
2022-09-21 2:01 ` [PATCH 3/8] KVM: x86: Remove unused argument in gpc_unmap_khva() Michal Luczaj
2022-09-21 2:01 ` [PATCH 4/8] KVM: x86: Store immutable gfn_to_pfn_cache properties Michal Luczaj
2022-10-10 23:42 ` Sean Christopherson
2022-10-11 0:37 ` Sean Christopherson
2022-09-21 2:01 ` [PATCH 5/8] KVM: x86: Clean up kvm_gpc_check() Michal Luczaj
2022-09-21 2:01 ` [PATCH 6/8] KVM: x86: Clean up hva_to_pfn_retry() Michal Luczaj
2022-09-21 2:01 ` [PATCH 7/8] KVM: x86: Clean up kvm_gpc_refresh(), kvm_gpc_unmap() Michal Luczaj
2022-09-21 2:01 ` [PATCH 8/8] KVM: x86: Fix NULL pointer dereference in kvm_xen_set_evtchn_fast() Michal Luczaj
2022-10-10 23:28 ` Sean Christopherson
2022-10-13 0:22 ` Sean Christopherson [this message]
2022-10-13 20:28 ` Sean Christopherson
2022-10-20 15:59 ` Michal Luczaj
2022-10-20 16:58 ` Sean Christopherson
2022-10-21 2:39 ` Michal Luczaj
2022-10-05 12:30 ` [PATCH v2 0/8] KVM: x86: gfn_to_pfn_cache cleanups and a fix Michal Luczaj
2022-10-05 12:30 ` [PATCH v2 1/8] KVM: x86: Add initializer for gfn_to_pfn_cache Michal Luczaj
2022-10-05 12:30 ` [PATCH v2 2/8] KVM: x86: Shorten gfn_to_pfn_cache function names Michal Luczaj
2022-10-05 12:30 ` [PATCH v2 3/8] KVM: x86: Remove unused argument in gpc_unmap_khva() Michal Luczaj
2022-10-05 12:30 ` [PATCH v2 4/8] KVM: x86: Store immutable gfn_to_pfn_cache properties Michal Luczaj
2022-10-05 12:30 ` [PATCH v2 5/8] KVM: x86: Clean up kvm_gpc_check() Michal Luczaj
2022-10-05 12:30 ` [PATCH v2 6/8] KVM: x86: Clean up hva_to_pfn_retry() Michal Luczaj
2022-10-05 12:30 ` [PATCH v2 7/8] KVM: x86: Clean up kvm_gpc_refresh(), kvm_gpc_unmap() Michal Luczaj
2022-10-05 12:30 ` [PATCH v2 8/8] KVM: x86: Fix NULL pointer dereference in kvm_xen_set_evtchn_fast() Michal Luczaj
2022-09-16 0:54 ` [RFC PATCH 4/4] KVM: x86/xen: Test shinfo_cache lock races Michal Luczaj
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