Can't start qemu on linux-5.14.2-051402-lowlatency

[Jérôme Poulin]

After installing kernel package linux-image-unsigned-5.14.2-051402-lowlatency from https://kernel.ubuntu.com/~kernel-ppa/mainline/ starting libvirtd, and thus qemu, results in 2 stack traces. Then libvirtd stops.

Rolling back to 5.11.0-34-lowlatency fixes the problem.

sep 10 17:07:37 kernel: invalid opcode: 0000 [#3] PREEMPT SMP NOPTI
sep 10 17:07:37 kernel: CPU: 8 PID: 21670 Comm: daemon-init Tainted: G D W 5.14.2-051402-lowlatency #202109080331
sep 10 17:07:37 kernel: Hardware name: Supermicro C9X299-PG300F/C9X299-PG300F, BIOS 2.1 06/16/2020
sep 10 17:07:37 kernel: RIP: 0010:vmx_create_vcpu+0x6a7/0x6f0 [kvm_intel]
sep 10 17:07:37 kernel: Code: 89 e7 48 8d 75 cc ba 04 00 00 00 e8 c3 58 fb d1 85 c0 74 d7 4c 89 ff 4c 89 f3 41 bd f2 ff ff ff e8 fe d9 5f d2 e9 0b fd ff ff <0f> 0b 4c 89 ff 45 89 e5 e8 ec d9 5f d2 45 85 e4 0f 84 34 fb ff ff
sep 10 17:07:37 kernel: RSP: 0018:ffffb976caa0fc78 EFLAGS: 00010202
sep 10 17:07:37 kernel: RAX: ffff9fce6af99db0 RBX: ffff9fce6af98000 RCX: 0000000000000007
sep 10 17:07:37 kernel: RDX: 0000000000000006 RSI: 0000000000010000 RDI: 0000000000000122
sep 10 17:07:37 kernel: RBP: ffffb976caa0fcb8 R08: 0000000000000000 R09: ffff9fce6afa1080
sep 10 17:07:37 kernel: R10: 0000000000000293 R11: ffff9fdd3fc33588 R12: 0000000000000007
sep 10 17:07:37 kernel: R13: 00000000fffffff4 R14: ffff9fce6af98000 R15: 0000000000000000
sep 10 17:07:37 kernel: FS: 00007f75e8b79640(0000) GS:ffff9fdd3fc00000(0000) knlGS:0000000000000000
sep 10 17:07:37 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
sep 10 17:07:37 kernel: CR2: 00007f75f8dc2800 CR3: 0000000314c88005 CR4: 00000000003726e0
sep 10 17:07:37 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
sep 10 17:07:37 kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
sep 10 17:07:37 kernel: Call Trace:
sep 10 17:07:37 kernel: kvm_arch_vcpu_create+0x288/0x390 [kvm]
sep 10 17:07:37 kernel: kvm_vm_ioctl_create_vcpu+0x188/0x420 [kvm]
sep 10 17:07:37 kernel: ? obj_cgroup_uncharge_pages+0x69/0xe0
sep 10 17:07:37 kernel: kvm_vm_ioctl+0x546/0x7b0 [kvm]
sep 10 17:07:37 kernel: ? kvm_uevent_notify_change.part.0+0x17b/0x210 [kvm]
sep 10 17:07:37 kernel: ? kfree+0x22a/0x3e0
sep 10 17:07:37 kernel: ? __fget_files+0x74/0xa0
sep 10 17:07:37 kernel: __x64_sys_ioctl+0x8e/0xc0
sep 10 17:07:37 kernel: do_syscall_64+0x59/0xc0
sep 10 17:07:37 kernel: ? do_syscall_64+0x69/0xc0
sep 10 17:07:37 kernel: ? exit_to_user_mode_prepare+0x37/0xb0
sep 10 17:07:37 kernel: ? syscall_exit_to_user_mode+0x27/0x50
sep 10 17:07:37 kernel: ? do_syscall_64+0x69/0xc0
sep 10 17:07:37 kernel: ? exit_to_user_mode_prepare+0x37/0xb0
sep 10 17:07:37 kernel: ? syscall_exit_to_user_mode+0x27/0x50
sep 10 17:07:37 kernel: ? __x64_sys_close+0x11/0x40
sep 10 17:07:37 kernel: ? do_syscall_64+0x69/0xc0
sep 10 17:07:37 kernel: ? exit_to_user_mode_prepare+0x37/0xb0
sep 10 17:07:37 kernel: ? syscall_exit_to_user_mode+0x27/0x50
sep 10 17:07:37 kernel: ? __x64_sys_read+0x19/0x20
sep 10 17:07:37 kernel: ? do_syscall_64+0x69/0xc0
sep 10 17:07:37 kernel: ? asm_sysvec_apic_timer_interrupt+0xa/0x20
sep 10 17:07:37 kernel: entry_SYSCALL_64_after_hwframe+0x44/0xae
sep 10 17:07:37 kernel: RIP: 0033:0x7f75f895aecb
sep 10 17:07:37 kernel: Code: ff ff ff 85 c0 79 8b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 6d 1f 0d 00 f7 d8 64 89 01 48

sep 10 17:07:37 kernel: RSP: 002b:00007f75e8b78498 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
sep 10 17:07:37 kernel: RAX: ffffffffffffffda RBX: 00007f75b02d1260 RCX: 00007f75f895aecb
sep 10 17:07:37 kernel: RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000022
sep 10 17:07:37 kernel: RBP: 00007f75e8b78510 R08: 0000000000000000 R09: 0000000000000000
sep 10 17:07:37 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
sep 10 17:07:37 kernel: R13: 00007f75b02ddd18 R14: 0000000000000000 R15: 00007f75b02ddd10
sep 10 17:07:37 kernel: Modules linked in: cpuid snd_seq_dummy snd_hrtimer ip6t_REJECT nf_reject_ipv6 xt_CHECKSUM xt_tcpudp ipt_REJECT nf_reject_ipv4 xt_set ip_set_hash_ip ip_set bridge stp llc xt_MASQUERADE xt_conntrack nft_compat nft_counter nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink zstd lz4 lz4_compress zram netconsole macvlan binfmt_misc dm_crypt nls_iso8859_1 intel_rapl_msr intel_rapl_common isst_if_common nfit x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio rapl intel_cstate snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_usb_audio snd_hda_codec snd_seq_midi snd_usbmidi_lib snd_hda_core snd_seq_midi_event mc snd_hwdep snd_rawmidi efi_pstore snd_pcm snd_seq xpad snd_seq_device ff_memless snd_timer snd soundcore input_leds joydev mei_me mei ioatdma mac_hid acpi_tad sch_fq_codel nct6775 hwmon_vid coretemp msr sunrpc ip_tables x_tables autofs4 btrfs blake2b_generic zstd_compress raid10
sep 10 17:07:37 kernel: multipath linear dm_mirror dm_region_hash dm_log 9pnet_virtio 9p 9pnet fscache netfs hid_logitech_hidpp hid_logitech_dj bcache crc64 raid0 uas usb_storage dm_raid raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 hid_generic usbhid hid amdgpu ast iommu_v2 gpu_sched drm_vram_helper drm_ttm_helper ttm drm_kms_helper crct10dif_pclmul crc32_pclmul ghash_clmulni_intel syscopyarea sysfillrect sysimgblt fb_sys_fops cec aesni_intel rc_core crypto_simd i2c_nvidia_gpu cryptd drm igb atlantic nvme xhci_pci macsec nvme_core i2c_i801 ahci dca i2c_smbus i2c_algo_bit libahci wmi xhci_pci_renesas
sep 10 17:07:37 kernel: ---[ end trace 60893759aa14f130 ]---
sep 10 17:07:37 pipewire[5502]: 2 events suppressed
sep 10 17:07:37 pipewire[5502]: (alsa_output.pci-0000_00_1f.3.analog-stereo-42) XRun! rate:256/48000 count:4 time:281252368 delay:28677615 max:218459525
sep 10 17:07:39 kernel: RIP: 0010:vmx_create_vcpu+0x6a7/0x6f0 [kvm_intel]
sep 10 17:07:39 kernel: Code: 89 e7 48 8d 75 cc ba 04 00 00 00 e8 c3 58 fb d1 85 c0 74 d7 4c 89 ff 4c 89 f3 41 bd f2 ff ff ff e8 fe d9 5f d2 e9 0b fd ff ff <0f> 0b 4c 89 ff 45 89 e5 e8 ec d9 5f d2 45 85 e4 0f 84 34 fb ff ff
sep 10 17:07:39 kernel: RSP: 0018:ffffb976c8843d08 EFLAGS: 00010202
sep 10 17:07:39 kernel: RAX: ffff9fce6af9c3f0 RBX: ffff9fce6af9a640 RCX: 0000000000000007
sep 10 17:07:39 kernel: RDX: 0000000000000006 RSI: 0000000000010000 RDI: 0000000000000122
sep 10 17:07:39 kernel: RBP: ffffb976c8843d48 R08: 0000000000000000 R09: ffff9fce6afa0040
sep 10 17:07:39 kernel: R10: ffff9fce6afa0000 R11: ffffe24b45abe800 R12: 0000000000000007
sep 10 17:07:39 kernel: R13: 00000000fffffff4 R14: ffff9fce6af9a640 R15: 0000000000000000
sep 10 17:07:39 kernel: FS: 00007f75e8b79640(0000) GS:ffff9fdd3fd00000(0000) knlGS:0000000000000000
sep 10 17:07:39 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
sep 10 17:07:39 kernel: CR2: 00007fc5bec78f90 CR3: 0000000314c88003 CR4: 00000000003726e0
sep 10 17:07:39 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
sep 10 17:07:39 kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1943287/+editstatus and add the package name in the text box next to the word Package.

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[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1943287

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Launchpad Janitor (janitor)]

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