https://bugzilla.kernel.org/show_bug.cgi?id=200101 Bug ID: 200101 Summary: random freeze under load Product: Virtualization Version: unspecified Kernel Version: 4.16.11 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: lekto@xxxxx Regression: No Hi, I have random freezes while using virtual machine. I have vm (virtmanager + libvirt + qemu + kvm) with windows 10 + gpu passthrough (nvidia 1050). It occur under load, such as playing factorio or running valley benchmark. Last working kernel was 4.16.10, using git bisect I found commit that probably cause this: >95271aeb93d4681c65e2f94969b23ef6070367a6 is the first bad commit >commit 95271aeb93d4681c65e2f94969b23ef6070367a6 >Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx> >Date: Thu May 10 20:42:48 2018 +0200 > > x86/speculation, KVM: Implement support for VIRT_SPEC_CTRL/LS_CFG > > commit 47c61b3955cf712cadfc25635bf9bc174af030ea upstream > > Add the necessary logic for supporting the emulated VIRT_SPEC_CTRL MSR to > x86_virt_spec_ctrl(). If either X86_FEATURE_LS_CFG_SSBD or > X86_FEATURE_VIRT_SPEC_CTRL is set then use the new guest_virt_spec_ctrl > argument to check whether the state must be modified on the host. The > update reuses speculative_store_bypass_update() so the ZEN-specific > sibling > coordination can be reused. > > Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > >:040000 040000 1a076b17c0c8d0bf255c9aba856f1b75791deeb1 >>82bd77c23c8e1ade512f4afa5ce021cbad6b2ae8 M arch CPU: ryzen 1600, mobo: asrock x370 gaming x -- You are receiving this mail because: You are watching the assignee of the bug.
