[10800.367373] BUG: kernel NULL pointer dereference, address: 0000000000000000 [10803.662272] #PF: supervisor instruction fetch in kernel mode [10803.667930] #PF: error_code(0x0010) - not-present page [10803.673069] PGD 0 P4D 0 [10803.675609] Oops: 0010 [#1] PREEMPT_RT SMP PTI [10803.680055] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.15.0-1040-realtime #45-Ubuntu [10803.687881] Hardware name: Dell Inc. PowerEdge R310/05XKKK, BIOS 1.12.0 09/06/2013 [10803.695447] RIP: 0010:0x0 [10803.698084] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. [10803.704953] RSP: 0018:ffffbd8480003e88 EFLAGS: 00010097 [10803.710179] RAX: 0000000000000000 RBX: 00000000000237c0 RCX: 0000000000000004 [10803.717313] RDX: 0000000000000000 RSI: 0000000000000020 RDI: ffff95ea4006f318 [10803.724445] RBP: ffffbd8480003eb0 R08: ffff95ea4006f318 R09: 0000000000000001 [10803.731577] R10: 0000000000000020 R11: ffffffffffffffff R12: ffff95ea4006f318 [10803.738708] R13: 000009d2b3050300 R14: 0000000000000004 R15: 0000000000000000 [10803.745842] FS: 0000000000000000(0000) GS:ffff95eb77600000(0000) knlGS:0000000000000000 [10803.753928] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10803.759674] CR2: ffffffffffffffd6 CR3: 00000001be01a000 CR4: 00000000000006f0 [10803.766808] Call Trace: [10803.769262] [10803.771279] tick_do_broadcast+0xa1/0xd0 [10803.775215] tick_handle_oneshot_broadcast+0x14f/0x270 [10803.780365] timer_interrupt+0x18/0x30 [10803.784124] __handle_irq_event_percpu+0x4f/0x200 [10803.788839] handle_irq_event+0x75/0xf0 [10803.792686] handle_edge_irq+0xa4/0x2a0 [10803.796533] __common_interrupt+0x7b/0x150 [10803.800635] common_interrupt+0xc1/0xe0 [10803.804481] [10803.806584] [10803.808693] asm_common_interrupt+0x27/0x40 [10803.812888] RIP: 0010:cpuidle_enter_state+0xe3/0x6b0 [10803.817862] Code: 3d da 63 16 5b e8 8d 08 66 ff 49 89 c7 0f 1f 44 00 00 31 ff e8 ae 31 66 ff 80 7d d0 00 0f 85 42 02 00 00 fb 66 0f 1f 44 00 00 <45> 85 f6 0f 88 d7 01 00 00 4d 63 ee 49 83 fd 09 0f 87 d5 04 00 00 [10803.836607] RSP: 0018:ffffffffa6203dc0 EFLAGS: 00000246 [10803.841832] RAX: 0000000000000000 RBX: ffffdd847f600e00 RCX: 000000000000001f [10803.848965] RDX: ffff95ea401893c0 RSI: ffffffffa5a319ef RDI: ffffffffa59fabcb [10803.856098] RBP: ffffffffa6203e10 R08: 000009d2a80f7165 R09: ffffffffa4eb3152 [10803.863230] R10: 0000000000000005 R11: 071c71c71c71c71c R12: ffffffffa651f580 [10803.870361] R13: 0000000000000004 R14: 0000000000000004 R15: 000009d2a80f7165 [10803.877498] ? cpuidle_enter_state+0x82/0x6b0 [10803.881866] ? __this_cpu_preempt_check+0x13/0x20 [10803.886578] ? tick_nohz_stop_tick+0x27/0x230 [10803.890940] cpuidle_enter+0x2e/0x50 [10803.894526] cpuidle_idle_call+0x193/0x230 [10803.898634] do_idle+0x90/0x100 [10803.901780] cpu_startup_entry+0x20/0x30 [10803.905705] rest_init+0xe2/0x110 [10803.909023] ? acpi_enable_subsystem+0x21d/0x229 [10803.913652] arch_call_rest_init+0xe/0x23 [10803.917666] start_kernel+0x49e/0x4bf [10803.921331] x86_64_start_reservations+0x24/0x2a [10803.925958] x86_64_start_kernel+0xfb/0x106 [10803.930147] secondary_startup_64_no_verify+0xc2/0xcb [10803.935212] [10803.937407] Modules linked in: ftrace_direct_too act_tunnel_key cls_flower bareudp sch_netem xfrm_interface des_generic des3_ede_x86_64 libdes cls_matchall ip6t_rpfilter mpls_gso mpls_iptunnel mpls_router l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink l2tp_core br_netfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_tcpudp sch_etf sch_fq dccp_ipv6 dccp_ipv4 dccp nft_chain_nat xt_nat nf_nat algif_hash af_alg mptcp_diag xsk_diag tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag xt_conntrack nf_conntrack nf_defrag_ipv4 nf_defrag_ipv6 ip_vti ip6_vti xfrm6_tunnel fou6 sit ipip tunnel4 geneve xt_mark sch_ingress act_mirred cls_basic esp6 authenc echainiv nft_counter xt_policy nft_compat nf_tables veth nfnetlink bonding esp4_offload psample esp4 xfrm_user xfrm_algo macsec fou vxlan ip6_udp_tunnel udp_tunnel vrf 8021q garp mrp bridge stp llc ip6_gre ip6_tunnel tunnel6 ip_gre ip_tunnel gre cls_u32 sch_htb dummy poly1305_generic libpoly1305 poly1305_x86_64 [10803.937563] chacha_generic chacha_x86_64 libchacha chacha20poly1305 tls intel_powerclamp coretemp ipmi_ssif kvm_intel kvm dcdbas intel_cstate ipmi_si ipmi_devintf ipmi_msghandler i7core_edac acpi_power_meter mac_hid binfmt_misc sch_fq_codel dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua ramoops reed_solomon pstore_blk pstore_zone efi_pstore ip_tables x_tables autofs4 btrfs blake2b_generic zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear gpio_ich mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec mpt3sas rc_core raid_class drm pata_acpi lpc_ich bnx2 scsi_transport_sas wmi [last unloaded: ftrace_direct] [10804.088431] CR2: 0000000000000000 [10804.091752] ---[ end trace 0000000000000002 ]--- [10805.084339] printk: enabled sync mode [10806.089272] RIP: 0010:0x0 [10806.091903] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. [10806.098775] RSP: 0018:ffffbd8480003e88 EFLAGS: 00010097 [10806.103999] RAX: 0000000000000000 RBX: 00000000000237c0 RCX: 0000000000000004 [10806.111131] RDX: 0000000000000000 RSI: 0000000000000020 RDI: ffff95ea4006f318 [10806.118264] RBP: ffffbd8480003eb0 R08: ffff95ea4006f318 R09: 0000000000000001 [10806.125397] R10: 0000000000000020 R11: ffffffffffffffff R12: ffff95ea4006f318 [10806.132530] R13: 000009d2b3050300 R14: 0000000000000004 R15: 0000000000000000 [10806.139663] FS: 0000000000000000(0000) GS:ffff95eb77600000(0000) knlGS:0000000000000000 [10806.147749] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10806.153494] CR2: ffffffffffffffd6 CR3: 00000001be01a000 CR4: 00000000000006f0 [10806.160627] Kernel panic - not syncing: [10806.164465] Fatal exception in interrupt [10807.157161] Kernel Offset: 0x23400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [10807.175352] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---