Running stress-ng [1] with the following raw socket stressor triggers a softlockup on a SMP NUMA x86-64 system: sudo stress-ng --rawsock 20 -t 60 kernel:watchdog: BUG: soft lockup - CPU#4 stuck for 22s! [stress-ng:49781] Tested this on 5.17. User has also reported this against the stress-ng project: https://github.com/ColinIanKing/stress-ng/issues/187 [1] Stress-ng: https://github.com/ColinIanKing/stress-ng git clone https://github.com/ColinIanKing/stress-ng cd stress-ng make sudo ./stress-ng --rawsock 0 -t 60
running on a 200+ thread system with 5.17 and I lost my ssh connection to the system, so this is a DoS vector.
A workaround to stress-ng has been added: commit 69328da97f04745a9da2890c90c131c2322f81e2 (HEAD -> master) Author: Colin Ian King <colin.i.king@gmail.com> Date: Wed Apr 27 08:49:12 2022 +0000 stress-rawsock: make client wait for server to start https://github.com/ColinIanKing/stress-ng/commit/69328da97f04745a9da2890c90c131c2322f81e2 Meanwhile, here are some examples of the softlocks: [ 316.080821] watchdog: BUG: soft lockup - CPU#2 stuck for 26s! [stress-ng:2490] [ 316.096501] watchdog: BUG: soft lockup - CPU#5 stuck for 26s! [stress-ng:2493] [ 316.097799] watchdog: BUG: soft lockup - CPU#6 stuck for 26s! [stress-ng:2494] [ 316.097956] Modules linked in: intel_rapl_msr intel_rapl_common snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi kvm_intel snd_hda_codec kvm snd_hda_core snd_hwdep snd_pcm rapl snd_timer snd input_leds joydev serio_raw soundcore qemu_fw_cfg mac_hid dm_multipath scsi_dh_rdac scsi_dh_emc sch_fq_codel scsi_dh_alua ipmi_devintf ipmi_msghandler msr virtio_rng 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 hid_generic usbhid hid qxl drm_ttm_helper ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec crct10dif_pclmul crc32_pclmul rc_core ghash_clmulni_intel aesni_intel xhci_pci virtio_net i2c_i801 ahci net_failover crypto_simd psmouse drm virtio_blk libahci lpc_ich i2c_smbus xhci_pci_renesas cryptd failover [ 316.098130] CPU: 6 PID: 2494 Comm: stress-ng Tainted: G L 5.15.0-23-generic #23-Ubuntu [ 316.098133] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 316.098134] RIP: 0010:native_queued_spin_lock_slowpath+0x1d/0x30 [ 316.098139] Code: 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00 66 90 ba 01 00 00 00 8b 07 85 c0 75 09 f0 0f b1 17 85 c0 75 f2 c3 f3 90 <eb> ed 55 48 89 e5 e8 d8 fd ff ff 5d c3 66 0f 1f 44 00 00 0f 1f 44 [ 316.098141] RSP: 0018:ffffa231c4bb7cd8 EFLAGS: 00000202 [ 316.098142] RAX: 0000000000000001 RBX: ffffffffb99d1ea0 RCX: 0000000000000000 [ 316.098144] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffffb99d1ea4 [ 316.098145] RBP: ffffa231c4bb7cf0 R08: 0000000000000000 R09: ffff932d8de90b80 [ 316.098146] R10: 0000000000000009 R11: 0000000000000006 R12: ffffffffb99d1ea4 [ 316.098147] R13: ffffffffb99d1ea0 R14: ffffffffb99d26a0 R15: ffff932d86bd5140 [ 316.098148] FS: 00007f4078ed1740(0000) GS:ffff932dfbf80000(0000) knlGS:0000000000000000 [ 316.098150] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 316.098151] CR2: 000056142782f340 CR3: 000000001a6ce002 CR4: 0000000000370ee0 [ 316.098154] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 316.098155] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 316.098156] Call Trace: [ 316.098158] <TASK> [ 316.098158] ? queued_write_lock_slowpath+0x7a/0x80 [ 316.098162] _raw_write_lock_bh+0x27/0x30 [ 316.098165] raw_hash_sk+0x39/0xc0 [ 316.098168] inet_create.part.0.constprop.0+0x1d8/0x4a0 [ 316.098172] inet_create+0x1c/0x30 [ 316.098174] __sock_create+0x12e/0x230 [ 316.098176] __sys_socket+0x5d/0xf0 [ 316.098178] __x64_sys_socket+0x17/0x20 [ 316.098179] do_syscall_64+0x5c/0xc0 [ 316.098182] ? exit_to_user_mode_prepare+0x37/0xb0 [ 316.098185] ? syscall_exit_to_user_mode+0x27/0x50 [ 316.098187] ? __do_sys_getpid+0x1e/0x30 [ 316.098189] ? do_syscall_64+0x69/0xc0 [ 316.098192] ? do_user_addr_fault+0x1e3/0x670 [ 316.098194] ? exit_to_user_mode_prepare+0x37/0xb0 [ 316.098196] ? irqentry_exit_to_user_mode+0x9/0x20 [ 316.098198] ? irqentry_exit+0x19/0x30 [ 316.098199] ? exc_page_fault+0x89/0x160 [ 316.098200] ? asm_exc_page_fault+0x8/0x30 [ 316.098203] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 316.098205] RIP: 0033:0x7f4079aafceb [ 316.098207] Code: 73 01 c3 48 8b 0d 45 11 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 15 11 0f 00 f7 d8 64 89 01 48 [ 316.098209] RSP: 002b:00007ffce4463ea8 EFLAGS: 00000206 ORIG_RAX: 0000000000000029 [ 316.098210] RAX: ffffffffffffffda RBX: 00007ffce4463fd0 RCX: 00007f4079aafceb [ 316.098212] RDX: 00000000000000ff RSI: 0000000000000003 RDI: 0000000000000002 [ 316.098213] RBP: 00007ffce4464120 R08: 0000561427b1690e R09: 00007f4078ed1740 [ 316.098214] R10: 00007f4079a7437b R11: 0000000000000206 R12: 0000561427b1a37b [ 316.098215] R13: 00007f40786ec010 R14: 0000000000000026 R15: 0000000000000000 [ 316.098217] </TASK> [ 316.102224] watchdog: BUG: soft lockup - CPU#4 stuck for 26s! [stress-ng:2492] [ 316.102226] Modules linked in: intel_rapl_msr intel_rapl_common snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi kvm_intel snd_hda_codec kvm snd_hda_core snd_hwdep snd_pcm rapl snd_timer snd input_leds joydev serio_raw soundcore qemu_fw_cfg mac_hid dm_multipath scsi_dh_rdac scsi_dh_emc sch_fq_codel scsi_dh_alua ipmi_devintf ipmi_msghandler msr virtio_rng 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 hid_generic usbhid hid qxl drm_ttm_helper ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec crct10dif_pclmul crc32_pclmul rc_core ghash_clmulni_intel aesni_intel xhci_pci virtio_net i2c_i801 ahci net_failover crypto_simd psmouse drm virtio_blk libahci lpc_ich i2c_smbus xhci_pci_renesas cryptd failover [ 316.103068] CPU: 4 PID: 2492 Comm: stress-ng Tainted: G L 5.15.0-23-generic #23-Ubuntu [ 316.103071] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 316.103072] RIP: 0010:native_queued_spin_lock_slowpath+0x1d/0x30 [ 316.103076] Code: 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00 66 90 ba 01 00 00 00 8b 07 85 c0 75 09 f0 0f b1 17 85 c0 75 f2 c3 f3 90 <eb> ed 55 48 89 e5 e8 d8 fd ff ff 5d c3 66 0f 1f 44 00 00 0f 1f 44 [ 316.103077] RSP: 0018:ffffa231c4cefd60 EFLAGS: 00000202 [ 316.103079] RAX: 0000000000000001 RBX: ffffffffb99d1ea0 RCX: 0000000000000000 [ 316.103080] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffffb99d1ea4 [ 316.103081] RBP: ffffa231c4cefd78 R08: 0000000000000000 R09: ffff932d8391dd20 [ 316.103082] R10: 0000000000000009 R11: 0000000000000000 R12: ffffffffb99d1ea4 [ 316.103083] R13: ffffffffb99d1ea0 R14: ffffffffb99d26a0 R15: ffff932d8d634e00 [ 316.103462] FS: 00007f4078ed1740(0000) GS:ffff932dfbf00000(0000) knlGS:0000000000000000 [ 316.103484] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 316.103485] CR2: 000056142782f340 CR3: 00000000215b8004 CR4: 0000000000370ee0 [ 316.103522] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 316.103523] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 316.103524] Call Trace: [ 316.103525] <TASK> [ 316.103525] ? queued_write_lock_slowpath+0x7a/0x80 [ 316.103529] _raw_write_lock_bh+0x27/0x30 [ 316.103531] raw_hash_sk+0x39/0xc0 [ 316.103534] inet_create.part.0.constprop.0+0x1d8/0x4a0 [ 316.103537] inet_create+0x1c/0x30 [ 316.103547] __sock_create+0x12e/0x230 [ 316.103549] __sys_socket+0x5d/0xf0 [ 316.103582] __x64_sys_socket+0x17/0x20 [ 316.103584] do_syscall_64+0x5c/0xc0 [ 316.103586] ? do_user_addr_fault+0x1e3/0x670 [ 316.103588] ? exit_to_user_mode_prepare+0x37/0xb0 [ 316.103591] ? irqentry_exit_to_user_mode+0x9/0x20 [ 316.103593] ? irqentry_exit+0x19/0x30 [ 316.103594] ? exc_page_fault+0x89/0x160 [ 316.103595] ? asm_exc_page_fault+0x8/0x30 [ 316.103598] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 316.103600] RIP: 0033:0x7f4079aafceb [ 316.103602] Code: 73 01 c3 48 8b 0d 45 11 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 15 11 0f 00 f7 d8 64 89 01 48 [ 316.104141] RSP: 002b:00007ffce4463ea8 EFLAGS: 00000206 ORIG_RAX: 0000000000000029 [ 316.104144] RAX: ffffffffffffffda RBX: 00007ffce4463fd0 RCX: 00007f4079aafceb [ 316.104145] RDX: 00000000000000ff RSI: 0000000000000003 RDI: 0000000000000002 [ 316.104146] RBP: 00007ffce4464120 R08: 0000561427b1690e R09: 00007f4078ed1740 [ 316.104147] R10: 00007f4079a7437b R11: 0000000000000206 R12: 0000561427b1a37b [ 316.104148] R13: 00007f40786eb530 R14: 0000000000000025 R15: 0000000000000000 [ 316.104262] </TASK> [ 316.105976] watchdog: BUG: soft lockup - CPU#8 stuck for 26s! [stress-ng:2496] [ 316.105978] Modules linked in: intel_rapl_msr intel_rapl_common snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi kvm_intel snd_hda_codec kvm snd_hda_core snd_hwdep snd_pcm rapl snd_timer snd input_leds joydev serio_raw soundcore qemu_fw_cfg mac_hid dm_multipath scsi_dh_rdac scsi_dh_emc sch_fq_codel scsi_dh_alua ipmi_devintf ipmi_msghandler msr virtio_rng 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 hid_generic usbhid hid qxl drm_ttm_helper ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec crct10dif_pclmul crc32_pclmul rc_core ghash_clmulni_intel aesni_intel xhci_pci virtio_net i2c_i801 ahci net_failover crypto_simd psmouse drm virtio_blk libahci lpc_ich i2c_smbus xhci_pci_renesas cryptd failover [ 316.106040] CPU: 8 PID: 2496 Comm: stress-ng Tainted: G L 5.15.0-23-generic #23-Ubuntu [ 316.106042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 316.106043] RIP: 0010:native_queued_spin_lock_slowpath+0x1d/0x30 [ 316.106046] Code: 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00 66 90 ba 01 00 00 00 8b 07 85 c0 75 09 f0 0f b1 17 85 c0 75 f2 c3 f3 90 <eb> ed 55 48 89 e5 e8 d8 fd ff ff 5d c3 66 0f 1f 44 00 00 0f 1f 44 [ 316.106051] RSP: 0018:ffffa231c5befd30 EFLAGS: 00000202 [ 316.106600] RAX: 0000000000000001 RBX: ffffffffb99d1ea0 RCX: 0000000000000000 [ 316.106601] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffffb99d1ea4 [ 316.106602] RBP: ffffa231c5befd48 R08: 0000000000000000 R09: ffff932d84e419e0 [ 316.106603] R10: 0000000000000009 R11: 0000000000000000 R12: ffffffffb99d1ea4 [ 316.106651] R13: ffffffffb99d1ea0 R14: ffffffffb99d26a0 R15: ffff932d90ee6180 [ 316.106679] FS: 00007f4078ed1740(0000) GS:ffff932dfc000000(0000) knlGS:0000000000000000 [ 316.106707] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 316.106709] CR2: 000056142782f340 CR3: 0000000014bb2004 CR4: 0000000000370ee0 [ 316.106711] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 316.107046] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 316.107047] Call Trace: [ 316.107048] <TASK> [ 316.107049] ? queued_write_lock_slowpath+0x7a/0x80 [ 316.107088] _raw_write_lock_bh+0x27/0x30 [ 316.107091] raw_hash_sk+0x39/0xc0 [ 316.107093] inet_create.part.0.constprop.0+0x1d8/0x4a0 [ 316.107096] inet_create+0x1c/0x30 [ 316.107347] __sock_create+0x12e/0x230 [ 316.107349] __sys_socket+0x5d/0xf0 [ 316.107358] __x64_sys_socket+0x17/0x20 [ 316.107360] do_syscall_64+0x5c/0xc0 [ 316.107363] ? do_user_addr_fault+0x1e3/0x670 [ 316.107365] ? exit_to_user_mode_prepare+0x37/0xb0 [ 316.107381] ? syscall_exit_to_user_mode+0x27/0x50 [ 316.107382] ? __do_sys_getpid+0x1e/0x30 [ 316.107384] ? do_syscall_64+0x69/0xc0 [ 316.107386] ? asm_exc_page_fault+0x8/0x30 [ 316.107854] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 316.107898] RIP: 0033:0x7f4079aafceb [ 316.107921] Code: 73 01 c3 48 8b 0d 45 11 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 15 11 0f 00 f7 d8 64 89 01 48 [ 316.107922] RSP: 002b:00007ffce4463ea8 EFLAGS: 00000206 ORIG_RAX: 0000000000000029 [ 316.107938] RAX: ffffffffffffffda RBX: 00007ffce4463fd0 RCX: 00007f4079aafceb [ 316.107944] RDX: 00000000000000ff RSI: 0000000000000003 RDI: 0000000000000002 [ 316.107945] RBP: 00007ffce4464120 R08: 0000561427b1690e R09: 00007f4078ed1740 [ 316.107946] R10: 00007f4079a7437b R11: 0000000000000206 R12: 0000561427b1a37b [ 316.107954] R13: 00007f40786ecaf0 R14: 0000000000000027 R15: 0000000000000000 [ 316.107956] </TASK> [ 316.109517] watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [stress-ng:2489] [ 316.109519] Modules linked in: intel_rapl_msr intel_rapl_common snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi kvm_intel snd_hda_codec kvm snd_hda_core snd_hwdep snd_pcm rapl snd_timer snd input_leds [ 316.109594] watchdog: BUG: soft lockup - CPU#3 stuck for 26s! [stress-ng:2491] [ 316.109595] Modules linked in: intel_rapl_msr intel_rapl_common snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi kvm_intel snd_hda_codec kvm snd_hda_core [ 316.109968] joydev serio_raw soundcore qemu_fw_cfg mac_hid dm_multipath scsi_dh_rdac scsi_dh_emc sch_fq_codel scsi_dh_alua ipmi_devintf ipmi_msghandler msr virtio_rng ip_tables x_tables autofs4 btrfs blake2b_generic zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq [ 316.109600] snd_hwdep snd_pcm [ 316.110087] async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid hid [ 316.110150] rapl snd_timer snd input_leds joydev serio_raw soundcore qemu_fw_cfg [ 316.110197] qxl drm_ttm_helper ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec crct10dif_pclmul crc32_pclmul rc_core ghash_clmulni_intel aesni_intel xhci_pci virtio_net i2c_i801 ahci net_failover crypto_simd psmouse drm virtio_blk libahci lpc_ich i2c_smbus xhci_pci_renesas cryptd failover [ 316.110435] CPU: 0 PID: 2489 Comm: stress-ng Tainted: G L 5.15.0-23-generic #23-Ubuntu [ 316.110438] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 316.110459] RIP: 0010:native_queued_spin_lock_slowpath+0x1d/0x30 [ 316.110463] Code: 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00 66 90 ba 01 00 00 00 8b 07 85 c0 75 09 f0 0f b1 17 85 c0 75 f2 c3 f3 90 <eb> ed 55 48 89 e5 e8 d8 fd ff ff 5d c3 66 0f 1f 44 00 00 0f 1f 44 [ 316.110464] RSP: 0018:ffffa231c5c67d48 EFLAGS: 00000202 [ 316.110466] RAX: 0000000000000001 RBX: ffffffffb99d1ea0 RCX: 0000000000000000 [ 316.110467] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffffb99d1ea4 [ 316.110468] RBP: ffffa231c5c67d60 R08: 0000000000000000 R09: ffff932d849f05e0 [ 316.110469] R10: 0000000000000009 R11: 0000000000000000 R12: ffffffffb99d1ea4 [ 316.110470] R13: ffffffffb99d1ea0 R14: ffffffffb99d26a0 R15: ffff932d814609c0 [ 316.110472] FS: 00007f4078ed1740(0000) GS:ffff932dfbe00000(0000) knlGS:0000000000000000 [ 316.110473] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 316.110475] CR2: 00007ffce4463d88 CR3: 0000000019a94006 CR4: 0000000000370ef0 [ 316.110478] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 316.110478] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 316.110480] Call Trace: [ 316.110480] <TASK> [ 316.110481] ? queued_write_lock_slowpath+0x7a/0x80 [ 316.110484] _raw_write_lock_bh+0x27/0x30 [ 316.110486] raw_hash_sk+0x39/0xc0 [ 316.110489] inet_create.part.0.constprop.0+0x1d8/0x4a0 [ 316.110154] mac_hid dm_multipath scsi_dh_rdac scsi_dh_emc sch_fq_codel scsi_dh_alua ipmi_devintf ipmi_msghandler msr virtio_rng 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 hid_generic usbhid hid qxl drm_ttm_helper ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec crct10dif_pclmul crc32_pclmul rc_core ghash_clmulni_intel aesni_intel xhci_pci virtio_net i2c_i801 ahci net_failover crypto_simd psmouse drm virtio_blk libahci lpc_ich i2c_smbus xhci_pci_renesas cryptd failover [ 316.110531] CPU: 3 PID: 2491 Comm: stress-ng Tainted: G L 5.15.0-23-generic #23-Ubuntu [ 316.110533] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 316.110534] RIP: 0010:native_queued_spin_lock_slowpath+0x1d/0x30 [ 316.110536] Code: 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00 66 90 ba 01 00 00 00 8b 07 85 c0 75 09 f0 0f b1 17 85 c0 75 f2 c3 f3 90 <eb> ed 55 48 89 e5 e8 d8 fd ff ff 5d c3 66 0f 1f 44 00 00 0f 1f 44 [ 316.110537] RSP: 0018:ffffa231c5c6fd68 EFLAGS: 00000202 [ 316.110539] RAX: 0000000000000001 RBX: ffffffffb99d1ea0 RCX: 0000000000000000 [ 316.110540] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffffb99d1ea4 [ 316.110541] RBP: ffffa231c5c6fd80 R08: 0000000000000000 R09: ffff932d838deda0 [ 316.110542] R10: 0000000000000009 R11: 0000000000000000 R12: ffffffffb99d1ea4 [ 316.110543] R13: ffffffffb99d1ea0 R14: ffffffffb99d26a0 R15: ffff932d86ad0000 [ 316.110544] FS: 00007f4078ed1740(0000) GS:ffff932dfbec0000(0000) knlGS:0000000000000000 [ 316.110545] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 316.110546] CR2: 00007ffce4463d88 CR3: 000000001eaec006 CR4: 0000000000370ee0 [ 316.110549] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 316.110550] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 316.110551] Call Trace: [ 316.110551] <TASK> [ 316.110552] ? queued_write_lock_slowpath+0x7a/0x80 [ 316.110554] _raw_write_lock_bh+0x27/0x30 [ 316.110556] raw_hash_sk+0x39/0xc0 [ 316.110558] inet_create.part.0.constprop.0+0x1d8/0x4a0 [ 316.110561] inet_create+0x1c/0x30 [ 316.110563] __sock_create+0x12e/0x230 [ 316.110565] __sys_socket+0x5d/0xf0 [ 316.110567] ? handle_mm_fault+0xd8/0x2c0 [ 316.110569] __x64_sys_socket+0x17/0x20 [ 316.110571] do_syscall_64+0x5c/0xc0 [ 316.110573] ? do_syscall_64+0x69/0xc0 [ 316.110576] ? exit_to_user_mode_prepare+0x37/0xb0 [ 316.110578] ? irqentry_exit_to_user_mode+0x9/0x20 [ 316.110580] ? irqentry_exit+0x19/0x30 [ 316.110581] ? exc_page_fault+0x89/0x160 [ 316.110583] ? asm_exc_page_fault+0x8/0x30 [ 316.110588] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 316.110590] RIP: 0033:0x7f4079aafceb [ 316.110592] Code: 73 01 c3 48 8b 0d 45 11 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 15 11 0f 00 f7 d8 64 89 01 48 [ 316.110593] RSP: 002b:00007ffce4463ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 [ 316.110595] RAX: ffffffffffffffda RBX: 00007ffce4463fd0 RCX: 00007f4079aafceb [ 316.110596] RDX: 00000000000000ff RSI: 0000000000000003 RDI: 0000000000000002 [ 316.110597] RBP: 00007ffce4464120 R08: 0000000000000000 R09: 0000000000000000 [ 316.110598] R10: 0000000000000008 R11: 0000000000000246 R12: 0000561427b1a37b [ 316.110599] R13: 00007f40786eb530 R14: 0000000000000025 R15: 00000000000009bc [ 316.110753] inet_create+0x1c/0x30 [ 316.110756] __sock_create+0x12e/0x230 [ 316.110758] __sys_socket+0x5d/0xf0 [ 316.110759] ? syscall_exit_to_user_mode+0x27/0x50 [ 316.110761] __x64_sys_socket+0x17/0x20 [ 316.110762] do_syscall_64+0x5c/0xc0 [ 316.110765] ? syscall_exit_to_user_mode+0x27/0x50 [ 316.110766] ? __x64_sys_setpgid+0x14/0x20 [ 316.110771] ? do_syscall_64+0x69/0xc0 [ 316.110773] ? exit_to_user_mode_prepare+0x37/0xb0 [ 316.110775] ? irqentry_exit_to_user_mode+0x9/0x20 [ 316.110800] ? irqentry_exit+0x19/0x30 [ 316.110801] ? exc_page_fault+0x89/0x160 [ 316.110803] ? asm_exc_page_fault+0x8/0x30 [ 316.110805] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 316.110806] RIP: 0033:0x7f4079aafceb [ 316.110808] Code: 73 01 c3 48 8b 0d 45 11 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 15 11 0f 00 f7 d8 64 89 01 48 [ 316.110809] RSP: 002b:00007ffce4463ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 [ 316.110811] RAX: ffffffffffffffda RBX: 00007ffce4463fd0 RCX: 00007f4079aafceb [ 316.110812] RDX: 00000000000000ff RSI: 0000000000000003 RDI: 0000000000000002 [ 316.110813] RBP: 00007ffce4464120 R08: 0000000000000000 R09: 0000000000000000 [ 316.110814] R10: 0000000000000008 R11: 0000000000000246 R12: 0000561427b1a37b [ 316.110814] R13: 00007f40786eaa50 R14: 0000000000000024 R15: 00000000000009ba [ 316.110820] </TASK> [ 316.110916] </TASK> [ 316.129038] Modules linked in: intel_rapl_msr intel_rapl_common snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi kvm_intel snd_hda_codec kvm snd_hda_core snd_hwdep snd_pcm rapl [ 316.135329] Modules linked in: intel_rapl_msr intel_rapl_common snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg [ 316.148408] snd_timer snd input_leds joydev serio_raw soundcore qemu_fw_cfg mac_hid dm_multipath scsi_dh_rdac scsi_dh_emc sch_fq_codel scsi_dh_alua [ 316.155051] snd_intel_sdw_acpi kvm_intel snd_hda_codec kvm snd_hda_core snd_hwdep snd_pcm rapl snd_timer snd input_leds joydev serio_raw soundcore qemu_fw_cfg mac_hid dm_multipath scsi_dh_rdac scsi_dh_emc sch_fq_codel scsi_dh_alua ipmi_devintf ipmi_msghandler msr virtio_rng 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 [ 316.161628] watchdog: BUG: soft lockup - CPU#22 stuck for 26s! [stress-ng:2457] [ 316.161684] Modules linked in: intel_rapl_msr intel_rapl_common snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi kvm_intel snd_hda_codec kvm snd_hda_core snd_hwdep snd_pcm rapl snd_timer snd input_leds joydev serio_raw soundcore qemu_fw_cfg mac_hid dm_multipath scsi_dh_rdac scsi_dh_emc sch_fq_codel scsi_dh_alua ipmi_devintf ipmi_msghandler msr virtio_rng 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 hid_generic usbhid hid qxl drm_ttm_helper ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec crct10dif_pclmul crc32_pclmul rc_core ghash_clmulni_intel aesni_intel xhci_pci virtio_net i2c_i801 ahci net_failover crypto_simd psmouse drm virtio_blk libahci lpc_ich i2c_smbus xhci_pci_renesas cryptd failover [ 316.161732] CPU: 22 PID: 2457 Comm: stress-ng Tainted: G L 5.15.0-23-generic #23-Ubuntu [ 316.161735] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 316.161736] RIP: 0010:native_queued_spin_lock_slowpath+0x1d/0x30 [ 316.161740] Code: 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00 66 90 ba 01 00 00 00 8b 07 85 c0 75 09 f0 0f b1 17 85 c0 75 f2 c3 f3 90 <eb> ed 55 48 89 e5 e8 d8 fd ff ff 5d c3 66 0f 1f 44 00 00 0f 1f 44 [ 316.161755] RSP: 0018:ffffa231c5c47dc8 EFLAGS: 00000202 [ 316.161756] RAX: 0000000000000001 RBX: ffffffffb99d1ea0 RCX: 0000000000000000 [ 316.161758] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffffb99d1ea4 [ 316.161759] RBP: ffffa231c5c47de0 R08: 0000000000000000 R09: ffff932dad977160 [ 316.161760] R10: 0000000000000009 R11: 0000000000000006 R12: ffffffffb99d1ea4 [ 316.161760] R13: ffffffffb99d1ea0 R14: ffffffffb99d26a0 R15: ffff932dae5dc100 [ 316.161762] FS: 00007f4078ed1740(0000) GS:ffff932dfc380000(0000) knlGS:0000000000000000 [ 316.161763] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 316.161765] CR2: 00007ffce4463d88 CR3: 000000001630c002 CR4: 0000000000370ee0 [ 316.161768] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 316.161769] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 316.161770] Call Trace: [ 316.161771] <TASK> [ 316.161772] ? queued_write_lock_slowpath+0x7a/0x80 [ 316.161775] _raw_write_lock_bh+0x27/0x30 [ 316.161778] raw_hash_sk+0x39/0xc0 [ 316.161781] inet_create.part.0.constprop.0+0x1d8/0x4a0 [ 316.161785] inet_create+0x1c/0x30 [ 316.161787] __sock_create+0x12e/0x230 [ 316.161789] __sys_socket+0x5d/0xf0 [ 316.161790] __x64_sys_socket+0x17/0x20 [ 316.161792] do_syscall_64+0x5c/0xc0 [ 316.161795] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 316.161797] RIP: 0033:0x7f4079aafceb [ 316.161799] Code: 73 01 c3 48 8b 0d 45 11 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 15 11 0f 00 f7 d8 64 89 01 48 [ 316.161801] RSP: 002b:00007ffce4463ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 [ 316.161802] RAX: ffffffffffffffda RBX: 00007ffce4463fd0 RCX: 00007f4079aafceb [ 316.161804] RDX: 00000000000000ff RSI: 0000000000000003 RDI: 0000000000000002 [ 316.161805] RBP: 00007ffce4464120 R08: 0000000000000000 R09: 0000000000000000 [ 316.161805] R10: 0000000000000008 R11: 0000000000000246 R12: 0000561427b1a37b [ 316.161806] R13: 00007f40786e7ed0 R14: 0000000000000020 R15: 00000000000009b0 [ 316.161809] </TASK> [ 316.165765] watchdog: BUG: soft lockup - CPU#23 stuck for 26s! [stress-ng:2480] [ 316.165767] Modules linked in: intel_rapl_msr intel_rapl_common snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi kvm_intel snd_hda_codec kvm snd_hda_core snd_hwdep snd_pcm rapl snd_timer snd input_leds joydev serio_raw soundcore qemu_fw_cfg mac_hid dm_multipath scsi_dh_rdac scsi_dh_emc sch_fq_codel scsi_dh_alua ipmi_devintf ipmi_msghandler msr virtio_rng 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 hid_generic usbhid hid qxl drm_ttm_helper ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec crct10dif_pclmul crc32_pclmul rc_core ghash_clmulni_intel aesni_intel xhci_pci virtio_net i2c_i801 ahci net_failover crypto_simd psmouse drm virtio_blk libahci lpc_ich i2c_smbus xhci_pci_renesas cryptd failover [ 316.165999] CPU: 23 PID: 2480 Comm: stress-ng Tainted: G L 5.15.0-23-generic #23-Ubuntu [ 316.166001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 316.166002] RIP: 0010:native_queued_spin_lock_slowpath+0x1d/0x30 [ 316.166005] Code: 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00 66 90 ba 01 00 00 00 8b 07 85 c0 75 09 f0 0f b1 17 85 c0 75 f2 c3 f3 90 <eb> ed 55 48 89 e5 e8 d8 fd ff ff 5d c3 66 0f 1f 44 00 00 0f 1f 44 [ 316.166011] RSP: 0018:ffffa231c5ba7dc8 EFLAGS: 00000202 [ 316.166012] RAX: 0000000000000001 RBX: ffffffffb99d1ea0 RCX: 0000000000000000 [ 316.166013] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffffb99d1ea4 [ 316.166014] RBP: ffffa231c5ba7de0 R08: 0000000000000000 R09: ffff932d8900e040 [ 316.166015] R10: 0000000000000009 R11: 0000000000000006 R12: ffffffffb99d1ea4 [ 316.166088] R13: ffffffffb99d1ea0 R14: ffffffffb99d26a0 R15: ffff932d8bad3a80 [ 316.166089] FS: 00007f4078ed1740(0000) GS:ffff932dfc3c0000(0000) knlGS:0000000000000000 [ 316.166091] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 316.166092] CR2: 000056142782f340 CR3: 0000000018d0c003 CR4: 0000000000370ee0 [ 316.166095] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 316.166096] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 316.166097] Call Trace: [ 316.166097] <TASK> [ 316.166098] ? queued_write_lock_slowpath+0x7a/0x80 [ 316.166101] _raw_write_lock_bh+0x27/0x30 [ 316.166103] raw_hash_sk+0x39/0xc0 [ 316.166165] inet_create.part.0.constprop.0+0x1d8/0x4a0 [ 316.166168] inet_create+0x1c/0x30 [ 316.166170] __sock_create+0x12e/0x230 [ 316.166171] __sys_socket+0x5d/0xf0 [ 316.166188] ? __do_sys_getpid+0x1e/0x30 [ 316.166191] __x64_sys_socket+0x17/0x20 [ 316.166192] do_syscall_64+0x5c/0xc0 [ 316.166195] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 316.166197] RIP: 0033:0x7f4079aafceb [ 316.166337] Code: 73 01 c3 48 8b 0d 45 11 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 15 11 0f 00 f7 d8 64 89 01 48 [ 316.166338] RSP: 002b:00007ffce4463ea8 EFLAGS: 00000206 ORIG_RAX: 0000000000000029 [ 316.166340] RAX: ffffffffffffffda RBX: 00007ffce4463fd0 RCX: 00007f4079aafceb [ 316.166341] RDX: 00000000000000ff RSI: 0000000000000003 RDI: 0000000000000002 [ 316.166342] RBP: 00007ffce4464120 R08: 0000561427b1690e R09: 00007f4078ed1740 [ 316.166343] R10: 00007f4079a7437b R11: 0000000000000206 R12: 0000561427b1a37b [ 316.166344] R13: 00007f40786e7ed0 R14: 0000000000000020 R15: 0000000000000000 [ 316.166346] </TASK>
Please email to security at kernel.org as well.