[10426545.586129] kernel BUG at /build/linux-hwe-5.4-G51MV5/linux-hwe-5.4-5.4.0/kernel/cgroup/cgroup.c:1421! [10426545.596924] invalid opcode: 0000 [#1] SMP NOPTI [10426545.602917] CPU: 15 PID: 1 Comm: systemd Kdump: loaded Tainted: G OE 5.4.0-86-generic #97~18.04.1-Ubuntu [10426545.615082] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0012.070720200218 07/07/2020 [10426545.626982] RIP: 0010:cset_cgroup_from_root+0x5f/0x70 [10426545.633494] Code: e0 48 3b b0 08 02 00 00 75 0f eb 24 48 8b 40 e0 48 39 b0 08 02 00 00 74 17 48 8b 42 20 48 39 c7 48 8d 50 e0 75 e6 55 48 89 e5 <0f> 0b 48 8b 47 78 48 85 c0 74 f1 f3 c3 0f 1f 40 00 0f 1f 44 00 00 [10426545.654896] RSP: 0018:ffffc07e4006fd98 EFLAGS: 00010046 [10426545.661564] RAX: ffff9dc0b89aa5c8 RBX: ffff9d92ea4de000 RCX: 0000000000000050 [10426545.670126] RDX: ffff9dc0b89aa5a8 RSI: ffff9d92ea4de000 RDI: ffff9dc0b89aa5c8 [10426545.678664] RBP: ffffc07e4006fd98 R08: 0000000000001000 R09: ffff9d7d760e2000 [10426545.687185] R10: ffffc07e4006fe50 R11: ffff9d7d760e1049 R12: ffff9d927610ff80 [10426545.695695] R13: 0000000000000001 R14: ffff9d91a5f29e40 R15: 000000000000000d [10426545.704185] FS: 00007f09f1504dc0(0000) GS:ffff9d9300dc0000(0000) knlGS:0000000000000000 [10426545.713613] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10426545.720698] CR2: 00000000033cef98 CR3: 0000002e7db90001 CR4: 00000000007626e0 [10426545.729168] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [10426545.737620] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [10426545.746059] PKRU: 55555554 [10426545.750047] Call Trace: [10426545.753766] proc_cgroup_show+0x13f/0x2a0 [10426545.759023] proc_single_show+0x56/0x90 [10426545.764074] seq_read+0xda/0x440 [10426545.768498] __vfs_read+0x1b/0x40 [10426545.772990] vfs_read+0x8e/0x130 [10426545.777372] ksys_read+0xa7/0xe0 [10426545.781731] __x64_sys_read+0x1a/0x20 [10426545.786504] do_syscall_64+0x57/0x190 [10426545.791259] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [10426545.797378] RIP: 0033:0x7f09f1016184 [10426545.801999] Code: c3 0f 1f 44 00 00 41 54 55 49 89 d4 53 48 89 f5 89 fb 48 83 ec 10 e8 fb 03 02 00 4c 89 e2 41 89 c0 48 89 ee 89 df 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 48 89 44 24 08 e8 37 04 02 00 48 [10426545.822623] RSP: 002b:00007ffe3c0d6b40 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [10426545.831249] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007f09f1016184 [10426545.839432] RDX: 0000000000000400 RSI: 000055b13ce73b90 RDI: 0000000000000016 [10426545.847601] RBP: 000055b13ce73b90 R08: 0000000000000000 R09: 00007f09f0c12a7a [10426545.855753] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000400 [10426545.863903] R13: 00007f09f12ee2a0 R14: 000055b13ceb90b0 R15: 00000000000007ff [10426545.872033] Modules linked in: ip_gre ip_tunnel gre ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs cpuid act_police cls_basic vhost_net vhost tap ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bpfilter netconsole sch_ingress vxlan ip6_udp_tunnel nfnetlink_cttimeout nfnetlink openvswitch(OE) nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 udp_tunnel intel_rapl_msr intel_rapl_common 8021q garp mrp stp llc isst_if_common ipmi_ssif bonding skx_edac nfit x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel nls_iso8859_1 aesni_intel crypto_simd cryptd glue_helper rapl intel_cstate ast drm_vram_helper ttm drm_kms_helper drm i2c_algo_bit fb_sys_fops joydev input_leds syscopyarea ioatdma sysfillrect kyber_iosched sysimgblt lpc_ich dca ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter mac_hid sch_fq_codel bfq ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor [10426545.872069] async_tx xor raid6_pq libcrc32c raid0 multipath linear hid_generic usbhid hid raid1 mlx5_ib(OE) i40e mlx5_core(OE) pci_hyperv_intf mlx_compat(OE) tls ahci mlxfw(OE) libahci wmi