apport information ** Attachment added: "ProcCpuinfoMinimal.txt" https://bugs.launchpad.net/bugs/2015455/+attachment/5661671/+files/ProcCpuinfoMinimal.txt
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2015455 Title: Intel PET not available on recent kernel causing QEMU VM crashes Status in linux package in Ubuntu: Incomplete Bug description: Hi Following a recent kernel update on Ubuntu Server 22.04.2 x86_64 to 5.19.0-35 (& ..0-38), QEMU (via LXD) Windows Server 2022 VMs are crashing every day. The CPU has Intel PET feature, but I've had to disable tdp_mmu using modprobe so stabilise the VMs. The platform: ------------- Linux 5.19.0-38-generic #39~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Fri Mar 17 21:16:15 UTC 2 x86_64 x86_64 x86_64 GNU/Linux The CPU tech specs on Dell R620: https://www.intel.com/content/www/us/en/products/sku/75277/intel-xeon-processor-e52680-v2-25m-cache-2-80-ghz/specifications.html The work-around (success with modprobe): ---------------------------------------- https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0#KVM:_entry_failed.2C_hardware_error_0x80000021 LXD Issue: ---------- https://github.com/lxc/lxd/issues/11520 The QEMU log: ------------- someadmin@us2204-iph-lxd03:/home/someadmin# cat /var/snap/lxd/common/lxd/logs/mw2022-ivm-test01/qemu.log.old qemu-system-x86_64: Issue while setting TUNSETSTEERINGEBPF: Invalid argument with fd: 48, prog_fd: -1 KVM: entry failed, hardware error 0x80000021 If you're running a guest on an Intel machine without unrestricted mode support, the failure can be most likely due to the guest entering an invalid state for Intel VT. For example, the guest maybe running in big real mode which is not supported on less recent Intel processors. EAX=00000008 EBX=00040ee0 ECX=800003ac EDX=00000000 ESI=32e2f000 EDI=32e26040 EBP=813d2810 ESP=813d2790 EIP=00008000 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=1 HLT=0 ES =0000 00000000 ffffffff 00809300 CS =8000 7ff80000 ffffffff 00809300 SS =0000 00000000 ffffffff 00809300 DS =0000 00000000 ffffffff 00809300 FS =0000 00000000 ffffffff 00809300 GS =0000 00000000 ffffffff 00809300 LDT=0000 00000000 00000000 00000000 TR =0040 ff2a0000 00000067 00008b00 GDT= ff2a1fb0 00000057 IDT= 00000000 00000000 CR0=00050032 CR2=7c3fa0b0 CR3=001ae002 CR4=00000000 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000000 Code=qemu-system-x86_64: ../hw/core/cpu-sysemu.c:77: cpu_asidx_from_attrs: Assertion `ret < cpu->num_ases && ret >= 0' failed. The CPU via lscpu: ------------------ Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 46 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 40 On-line CPU(s) list: 0-39 Vendor ID: GenuineIntel Model name: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz CPU family: 6 Model: 62 Thread(s) per core: 2 Core(s) per socket: 10 Socket(s): 2 Stepping: 4 CPU max MHz: 3600.0000 CPU min MHz: 1200.0000 BogoMIPS: 5599.96 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm cpuid_fault pti ssbd ibrs ibpb stibp tpr_shad ow vnmi flexpriority ept vpid fsgsbase smep erms xsaveopt dtherm ida arat pln pts md_clear flush_l1d Virtualization features: Virtualization: VT-x Caches (sum of all): L1d: 640 KiB (20 instances) L1i: 640 KiB (20 instances) L2: 5 MiB (20 instances) L3: 50 MiB (2 instances) NUMA: NUMA node(s): 2 NUMA node0 CPU(s): 0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38 NUMA node1 CPU(s): 1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39 Vulnerabilities: Itlb multihit: KVM: Mitigation: Split huge pages L1tf: Mitigation; PTE Inversion; VMX conditional cache flushes, SMT vulnerable Mds: Mitigation; Clear CPU buffers; SMT vulnerable Meltdown: Mitigation; PTI Mmio stale data: Unknown: No mitigations Retbleed: Not affected Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Spectre v2: Mitigation; Retpolines, IBPB conditional, IBRS_FW, STIBP conditional, RSB filling, PBRSB-eIBRS Not affected Srbds: Not affected Tsx async abort: Not affected QEMU version: I am not able to determine this as yet, but whatever is bundled with the latest/stable channel's 5.12-c63881f version of the LXD Snap. When I am able to find out I will update this report. Thanks Mark --- ProblemType: Bug AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Mar 30 18:35 seq crw-rw---- 1 root audio 116, 33 Mar 30 18:35 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu82.3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckResult: pass DistroRelease: Ubuntu 22.04 InstallationDate: Installed on 2022-05-28 (312 days ago) InstallationMedia: Ubuntu-Server 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223.1) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: Dell Inc. PowerEdge R620 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 mgag200drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.19.0-38-generic root=/dev/mapper/vg00-vg00--lv00 ro ProcVersionSignature: Ubuntu 5.19.0-38.39~22.04.1-generic 5.19.17 RelatedPackageVersions: linux-restricted-modules-5.19.0-38-generic N/A linux-backports-modules-5.19.0-38-generic N/A linux-firmware 20220329.git681281e4-0ubuntu3.11 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' Tags: jammy uec-images Uname: Linux 5.19.0-38-generic x86_64 UpgradeStatus: Upgraded to jammy on 2022-08-10 (239 days ago) UserGroups: N/A _MarkForUpload: True dmi.bios.date: 12/06/2019 dmi.bios.release: 2.9 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.9.0 dmi.board.name: 0KCKR5 dmi.board.vendor: Dell Inc. dmi.board.version: A02 dmi.chassis.type: 23 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr2.9.0:bd12/06/2019:br2.9:svnDellInc.:pnPowerEdgeR620:pvr:rvnDellInc.:rn0KCKR5:rvrA02:cvnDellInc.:ct23:cvr:skuSKU=NotProvided;ModelName=PowerEdgeR620: dmi.product.name: PowerEdge R620 dmi.product.sku: SKU=NotProvided;ModelName=PowerEdge R620 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2015455/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
