Messages in this thread | | | Date | Sat, 1 Apr 2023 09:23:53 -0400 | From | Sasha Levin <> | Subject | Re: Linux 5.15.103 |
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On Tue, Mar 28, 2023 at 02:29:11PM +0200, Mathias Krause wrote: >On 28.03.23 14:14, Greg Kroah-Hartman wrote: >> On Tue, Mar 28, 2023 at 02:02:03PM +0200, Mathias Krause wrote: >>> On 17.03.23 09:04, Greg Kroah-Hartman wrote: >>>> I'm announcing the release of the 5.15.103 kernel. >>>> >>>> [...] >>>> >>>> Vitaly Kuznetsov (4): >>>> KVM: Optimize kvm_make_vcpus_request_mask() a bit >>>> KVM: Pre-allocate cpumasks for kvm_make_all_cpus_request_except() >>>> KVM: nVMX: Don't use Enlightened MSR Bitmap for L3 >>>> KVM: VMX: Introduce vmx_msr_bitmap_l01_changed() helper >>>> >>> >>> That list is missing commit 6470accc7ba9 ("KVM: x86: hyper-v: Avoid >>> calling kvm_make_vcpus_request_mask() with vcpu_mask==NULL") to fulfill >>> the prerequisite of "KVM: Optimize kvm_make_vcpus_request_mask() a bit". >>> >>> Right now the kvm selftests trigger a kernel NULL deref for the hyperv >>> test, making the system hang. >>> >>> Please consider applying commit 6470accc7ba9 for the next v5.15.x release. >> >> It wasn't tagged for the stable kernels, so we didn't pick it up :( > >Neither were any of the above commits. o.O > >Commit 3e48a6349d29 ("KVM: Optimize kvm_make_vcpus_request_mask() a >bit") has this tag, though: > >Stable-dep-of: 2b0128127373 ("KVM: Register /dev/kvm as the _very_ last >thing during initialization") > >I don't know why, though. These two commits have little in common. >Maybe Sasha knows why?
Because you've skipped the commit in the middle of the two you've pointed out :)
3e48a6349d29 is needed by 0a0ecaf0988b ("KVM: Pre-allocate cpumasks for kvm_make_all_cpus_request_except()"), which in turn is needed by 2b0128127373.
-- Thanks, Sasha
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