[10356.048639][ T17] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 9374243 jiffies s: 79797 root: 0x4/. [10356.049013][ T17] rcu: blocking rcu_node structures (internal RCU debug): [10356.049140][ T17] Sending NMI from CPU 3 to CPUs 2: [10356.049302][ C2] NMI backtrace for cpu 2 [10356.049309][ C2] CPU: 2 UID: 0 PID: 20861 Comm: mptcp_connect Tainted: G L 6.18.0-rc7-virtme #1 PREEMPT(full) [10356.049313][ C2] Tainted: [L]=SOFTLOCKUP [10356.049314][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [10356.049316][ C2] RIP: 0010:native_apic_msr_eoi+0xf/0x10 [10356.049321][ C2] Code: 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 d6 0f 1f 44 00 00 b8 01 00 00 00 c3 90 f3 0f 1e fa 31 c0 b9 0b 08 00 00 89 c2 0f 30 f3 0f 1e fa 0f 1f 44 00 00 89 f8 c3 0f 1f 40 00 f3 0f 1e fa 0f [10356.049323][ C2] RSP: 0018:ffa0000000218f30 EFLAGS: 00000046 [10356.049325][ C2] RAX: 0000000000000000 RBX: ff11000002980428 RCX: 000000000000080b [10356.049326][ C2] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ff11000035323bc8 [10356.049327][ C2] RBP: ff11000002980438 R08: ffffffffaa0fb5d2 R09: ffe21c0006a64779 [10356.049328][ C2] R10: ffe21c0006a6477a R11: 1fe2200006a6666a R12: ff110000027b3040 [10356.049329][ C2] R13: 0000000000000000 R14: ff110000027b3044 R15: 0000000000000020 [10356.049332][ C2] FS: 00007f81496ee740(0000) GS:ff11000086d76000(0000) knlGS:0000000000000000 [10356.049335][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10356.049336][ C2] CR2: 00007ffdd049adc8 CR3: 00000000108f0005 CR4: 0000000000771ef0 [10356.049337][ C2] PKRU: 55555554 [10356.049338][ C2] Call Trace: [10356.049341][ C2] [10356.049343][ C2] ioapic_ack_level+0xcd/0x400 [10356.049348][ C2] handle_fasteoi_irq+0x6b0/0xa50 [10356.049351][ C2] __common_interrupt+0xae/0x270 [10356.049353][ C2] ? __sysvec_apic_timer_interrupt+0xe9/0x160 [10356.049355][ C2] common_interrupt+0xc4/0x100 [10356.049357][ C2] [10356.049358][ C2] [10356.049359][ C2] asm_common_interrupt+0x26/0x40 [10356.049361][ C2] RIP: 0010:queued_spin_lock_slowpath+0x460/0xa00 [10356.049364][ C2] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00 [10356.049365][ C2] RSP: 0018:ffa0000000617580 EFLAGS: 00000202 [10356.049366][ C2] RAX: 0000000000000001 RBX: ff11000012560b48 RCX: 0000000000000001 [10356.049366][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff11000012560b48 [10356.049367][ C2] RBP: 1ff40000000c2eb3 R08: ffffffffac5390f1 R09: ffe21c00024ac169 [10356.049368][ C2] R10: ffe21c00024ac16a R11: 0000000000000000 R12: 0000000000000003 [10356.049369][ C2] R13: ffe21c00024ac169 R14: 000000000000001c R15: ff11000012560b48 [10356.049370][ C2] ? queued_spin_lock_slowpath+0xb1/0xa00 [10356.049373][ C2] ? trace_hardirqs_on+0x36/0x40 [10356.049375][ C2] ? _raw_write_unlock_irqrestore+0x80/0x80 [10356.049377][ C2] ? __printk_cpu_sync_put+0x35/0x60 [10356.049380][ C2] do_raw_spin_lock+0x1d5/0x260 [10356.049382][ C2] ? __rwlock_init+0x150/0x150 [10356.049384][ C2] ? __mptcp_try_fallback+0xd8/0x280 [10356.049386][ C2] __mptcp_try_fallback+0xd8/0x280 [10356.049389][ C2] mptcp_sendmsg_frag+0x16c2/0x3050 [10356.049392][ C2] ? __mptcp_try_fallback+0x280/0x280 [10356.049394][ C2] ? __mptcp_retrans+0x352/0xaa0 [10356.049396][ C2] __mptcp_retrans+0x421/0xaa0 [10356.049399][ C2] ? mptcp_check_and_set_pending+0x1a0/0x1a0 [10356.049401][ C2] ? __lock_release.isra.0+0x59/0x170 [10356.049402][ C2] ? mark_held_locks+0x40/0x70 [10356.049404][ C2] mptcp_release_cb+0x5aa/0xa70 [10356.049406][ C2] ? sk_reset_timer+0x33/0x80 [10356.049409][ C2] ? __mptcp_push_pending+0x520/0x520 [10356.049411][ C2] ? lock_acquire.part.0+0xbc/0x260 [10356.049413][ C2] ? release_sock+0x21/0x1d0 [10356.049415][ C2] release_sock+0xab/0x1d0 [10356.049417][ C2] mptcp_sendmsg+0xd5b/0x1bc0 [10356.049420][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10356.049422][ C2] ? mptcp_stream_accept+0xce0/0xce0 [10356.049424][ C2] ? ovl_sync_status+0x190/0x190 [10356.049426][ C2] ? vfs_iter_write+0x3d8/0xa80 [10356.049428][ C2] ? find_held_lock+0x2b/0x80 [10356.049429][ C2] ? ovl_llseek+0x260/0x260 [10356.049431][ C2] sock_write_iter+0x281/0x4d0 [10356.049433][ C2] ? __up_write+0x1bf/0x520 [10356.049434][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10356.049437][ C2] ? ovl_open_realfile+0x370/0x370 [10356.049438][ C2] ? rcu_read_lock_any_held+0x41/0xa0 [10356.049440][ C2] ? validate_chain+0x287/0x5f0 [10356.049442][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10356.049443][ C2] new_sync_write+0x3c5/0x6f0 [10356.049445][ C2] ? __lock_acquire+0x34c/0x740 [10356.049447][ C2] ? new_sync_read+0x6f0/0x6f0 [10356.049449][ C2] ? lock_acquire.part.0+0xbc/0x260 [10356.049450][ C2] ? find_held_lock+0x2b/0x80 [10356.049452][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10356.049454][ C2] vfs_write+0x65e/0xbb0 [10356.049457][ C2] ksys_write+0x17e/0x200 [10356.049459][ C2] ? __ia32_sys_read+0xc0/0xc0 [10356.049460][ C2] ? rcu_is_watching+0x15/0xd0 [10356.049463][ C2] do_syscall_64+0xbb/0xfd0 [10356.049465][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [10356.049466][ C2] RIP: 0033:0x7f814975fc5e [10356.049469][ C2] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [10356.049470][ C2] RSP: 002b:00007fffd25a6180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [10356.049471][ C2] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f814975fc5e [10356.049472][ C2] RDX: 0000000000001f9c RSI: 00007fffd25a8404 RDI: 0000000000000005 [10356.049473][ C2] RBP: 00007fffd25a6190 R08: 0000000000000000 R09: 0000000000000000 [10356.049474][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd25a83a0 [10356.049474][ C2] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c [10356.049476][ C2] [10380.394742][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 8784s! [mptcp_connect:20861] [10380.394752][ C2] Modules linked in: act_csum act_pedit cls_fw sch_ingress xt_mark xt_statistic xt_length xt_bpf sch_netem ipt_REJECT nf_reject_ipv4 nft_compat nf_tables [10380.394763][ C2] irq event stamp: 21232 [10380.394764][ C2] hardirqs last enabled at (21232): [] _raw_spin_unlock_irqrestore+0x53/0x80 [10380.394769][ C2] hardirqs last disabled at (21231): [] _raw_spin_lock_irqsave+0x50/0x60 [10380.394770][ C2] softirqs last enabled at (21212): [] __mptcp_retrans+0x2cb/0xaa0 [10380.394773][ C2] softirqs last disabled at (21214): [] __mptcp_retrans+0x352/0xaa0 [10380.394777][ C2] CPU: 2 UID: 0 PID: 20861 Comm: mptcp_connect Tainted: G L 6.18.0-rc7-virtme #1 PREEMPT(full) [10380.394780][ C2] Tainted: [L]=SOFTLOCKUP [10380.394781][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [10380.394782][ C2] RIP: 0010:__kasan_check_read+0x0/0x20 [10380.394786][ C2] Code: 8b 05 34 f0 b4 03 49 8b 40 20 48 39 c7 72 0f 48 05 00 80 00 00 48 39 c7 0f 82 0c 0f 22 ff 90 0f 0b 90 c3 0f 1f 80 00 00 00 00 0f 1e fa 48 8b 0c 24 89 f6 31 d2 e9 8f f5 ff ff 0f 1f 40 00 66 [10380.394787][ C2] RSP: 0018:ffa0000000617578 EFLAGS: 00000202 [10380.394789][ C2] RAX: 0000000000000001 RBX: ff11000012560b48 RCX: 0000000000000001 [10380.394790][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff11000012560b48 [10380.394791][ C2] RBP: 1ff40000000c2eb3 R08: ffffffffac5390f1 R09: ffe21c00024ac169 [10380.394792][ C2] R10: ffe21c00024ac16a R11: 0000000000000000 R12: 0000000000000003 [10380.394792][ C2] R13: ffe21c00024ac169 R14: 000000000000001c R15: ff11000012560b48 [10380.394795][ C2] FS: 00007f81496ee740(0000) GS:ff11000086d76000(0000) knlGS:0000000000000000 [10380.394798][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10380.394799][ C2] CR2: 00007ffdd049adc8 CR3: 00000000108f0005 CR4: 0000000000771ef0 [10380.394800][ C2] PKRU: 55555554 [10380.394801][ C2] Call Trace: [10380.394804][ C2] [10380.394806][ C2] queued_spin_lock_slowpath+0xb1/0xa00 [10380.394811][ C2] ? trace_hardirqs_on+0x36/0x40 [10380.394813][ C2] ? _raw_write_unlock_irqrestore+0x80/0x80 [10380.394815][ C2] ? __printk_cpu_sync_put+0x35/0x60 [10380.394818][ C2] do_raw_spin_lock+0x1d5/0x260 [10380.394820][ C2] ? __rwlock_init+0x150/0x150 [10380.394822][ C2] ? __mptcp_try_fallback+0xd8/0x280 [10380.394824][ C2] __mptcp_try_fallback+0xd8/0x280 [10380.394827][ C2] mptcp_sendmsg_frag+0x16c2/0x3050 [10380.394830][ C2] ? __mptcp_try_fallback+0x280/0x280 [10380.394831][ C2] ? __mptcp_retrans+0x352/0xaa0 [10380.394834][ C2] __mptcp_retrans+0x421/0xaa0 [10380.394836][ C2] ? mptcp_check_and_set_pending+0x1a0/0x1a0 [10380.394839][ C2] ? __lock_release.isra.0+0x59/0x170 [10380.394840][ C2] ? mark_held_locks+0x40/0x70 [10380.394843][ C2] mptcp_release_cb+0x5aa/0xa70 [10380.394845][ C2] ? sk_reset_timer+0x33/0x80 [10380.394847][ C2] ? __mptcp_push_pending+0x520/0x520 [10380.394849][ C2] ? lock_acquire.part.0+0xbc/0x260 [10380.394851][ C2] ? release_sock+0x21/0x1d0 [10380.394854][ C2] release_sock+0xab/0x1d0 [10380.394855][ C2] mptcp_sendmsg+0xd5b/0x1bc0 [10380.394858][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10380.394861][ C2] ? mptcp_stream_accept+0xce0/0xce0 [10380.394862][ C2] ? ovl_sync_status+0x190/0x190 [10380.394864][ C2] ? vfs_iter_write+0x3d8/0xa80 [10380.394866][ C2] ? find_held_lock+0x2b/0x80 [10380.394867][ C2] ? ovl_llseek+0x260/0x260 [10380.394869][ C2] sock_write_iter+0x281/0x4d0 [10380.394871][ C2] ? __up_write+0x1bf/0x520 [10380.394872][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10380.394875][ C2] ? ovl_open_realfile+0x370/0x370 [10380.394876][ C2] ? rcu_read_lock_any_held+0x41/0xa0 [10380.394878][ C2] ? validate_chain+0x287/0x5f0 [10380.394880][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10380.394881][ C2] new_sync_write+0x3c5/0x6f0 [10380.394883][ C2] ? __lock_acquire+0x34c/0x740 [10380.394885][ C2] ? new_sync_read+0x6f0/0x6f0 [10380.394887][ C2] ? lock_acquire.part.0+0xbc/0x260 [10380.394888][ C2] ? find_held_lock+0x2b/0x80 [10380.394890][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10380.394892][ C2] vfs_write+0x65e/0xbb0 [10380.394894][ C2] ksys_write+0x17e/0x200 [10380.394896][ C2] ? __ia32_sys_read+0xc0/0xc0 [10380.394898][ C2] ? rcu_is_watching+0x15/0xd0 [10380.394900][ C2] do_syscall_64+0xbb/0xfd0 [10380.394902][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [10380.394904][ C2] RIP: 0033:0x7f814975fc5e [10380.394907][ C2] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [10380.394908][ C2] RSP: 002b:00007fffd25a6180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [10380.394910][ C2] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f814975fc5e [10380.394911][ C2] RDX: 0000000000001f9c RSI: 00007fffd25a8404 RDI: 0000000000000005 [10380.394912][ C2] RBP: 00007fffd25a6190 R08: 0000000000000000 R09: 0000000000000000 [10380.394912][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd25a83a0 [10380.394913][ C2] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c [10380.394915][ C2] [10408.394745][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 8810s! [mptcp_connect:20861] [10408.394760][ C2] Modules linked in: act_csum act_pedit cls_fw sch_ingress xt_mark xt_statistic xt_length xt_bpf sch_netem ipt_REJECT nf_reject_ipv4 nft_compat nf_tables [10408.394784][ C2] irq event stamp: 21232 [10408.394786][ C2] hardirqs last enabled at (21232): [] _raw_spin_unlock_irqrestore+0x53/0x80 [10408.394799][ C2] hardirqs last disabled at (21231): [] _raw_spin_lock_irqsave+0x50/0x60 [10408.394803][ C2] softirqs last enabled at (21212): [] __mptcp_retrans+0x2cb/0xaa0 [10408.394809][ C2] softirqs last disabled at (21214): [] __mptcp_retrans+0x352/0xaa0 [10408.394818][ C2] CPU: 2 UID: 0 PID: 20861 Comm: mptcp_connect Tainted: G L 6.18.0-rc7-virtme #1 PREEMPT(full) [10408.394825][ C2] Tainted: [L]=SOFTLOCKUP [10408.394827][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [10408.394830][ C2] RIP: 0010:queued_spin_lock_slowpath+0x460/0xa00 [10408.394837][ C2] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00 [10408.394841][ C2] RSP: 0018:ffa0000000617580 EFLAGS: 00000202 [10408.394845][ C2] RAX: 0000000000000001 RBX: ff11000012560b48 RCX: 0000000000000001 [10408.394848][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff11000012560b48 [10408.394850][ C2] RBP: 1ff40000000c2eb3 R08: ffffffffac5390f1 R09: ffe21c00024ac169 [10408.394852][ C2] R10: ffe21c00024ac16a R11: 0000000000000000 R12: 0000000000000003 [10408.394854][ C2] R13: ffe21c00024ac169 R14: 000000000000001c R15: ff11000012560b48 [10408.394859][ C2] FS: 00007f81496ee740(0000) GS:ff11000086d76000(0000) knlGS:0000000000000000 [10408.394865][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10408.394867][ C2] CR2: 00007ffdd049adc8 CR3: 00000000108f0005 CR4: 0000000000771ef0 [10408.394870][ C2] PKRU: 55555554 [10408.394872][ C2] Call Trace: [10408.394878][ C2] [10408.394883][ C2] ? trace_hardirqs_on+0x36/0x40 [10408.394891][ C2] ? _raw_write_unlock_irqrestore+0x80/0x80 [10408.394896][ C2] ? __printk_cpu_sync_put+0x35/0x60 [10408.394903][ C2] do_raw_spin_lock+0x1d5/0x260 [10408.394909][ C2] ? __rwlock_init+0x150/0x150 [10408.394913][ C2] ? __mptcp_try_fallback+0xd8/0x280 [10408.394918][ C2] __mptcp_try_fallback+0xd8/0x280 [10408.394923][ C2] mptcp_sendmsg_frag+0x16c2/0x3050 [10408.394929][ C2] ? __mptcp_try_fallback+0x280/0x280 [10408.394933][ C2] ? __mptcp_retrans+0x352/0xaa0 [10408.394938][ C2] __mptcp_retrans+0x421/0xaa0 [10408.394944][ C2] ? mptcp_check_and_set_pending+0x1a0/0x1a0 [10408.394948][ C2] ? __lock_release.isra.0+0x59/0x170 [10408.394952][ C2] ? mark_held_locks+0x40/0x70 [10408.394956][ C2] mptcp_release_cb+0x5aa/0xa70 [10408.394961][ C2] ? sk_reset_timer+0x33/0x80 [10408.394968][ C2] ? __mptcp_push_pending+0x520/0x520 [10408.394972][ C2] ? lock_acquire.part.0+0xbc/0x260 [10408.394976][ C2] ? release_sock+0x21/0x1d0 [10408.394981][ C2] release_sock+0xab/0x1d0 [10408.394985][ C2] mptcp_sendmsg+0xd5b/0x1bc0 [10408.394991][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10408.394997][ C2] ? mptcp_stream_accept+0xce0/0xce0 [10408.395001][ C2] ? ovl_sync_status+0x190/0x190 [10408.395007][ C2] ? vfs_iter_write+0x3d8/0xa80 [10408.395011][ C2] ? find_held_lock+0x2b/0x80 [10408.395014][ C2] ? ovl_llseek+0x260/0x260 [10408.395019][ C2] sock_write_iter+0x281/0x4d0 [10408.395023][ C2] ? __up_write+0x1bf/0x520 [10408.395027][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10408.395032][ C2] ? ovl_open_realfile+0x370/0x370 [10408.395035][ C2] ? rcu_read_lock_any_held+0x41/0xa0 [10408.395040][ C2] ? validate_chain+0x287/0x5f0 [10408.395044][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10408.395047][ C2] new_sync_write+0x3c5/0x6f0 [10408.395052][ C2] ? __lock_acquire+0x34c/0x740 [10408.395055][ C2] ? new_sync_read+0x6f0/0x6f0 [10408.395059][ C2] ? lock_acquire.part.0+0xbc/0x260 [10408.395062][ C2] ? find_held_lock+0x2b/0x80 [10408.395066][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10408.395071][ C2] vfs_write+0x65e/0xbb0 [10408.395076][ C2] ksys_write+0x17e/0x200 [10408.395079][ C2] ? __ia32_sys_read+0xc0/0xc0 [10408.395083][ C2] ? rcu_is_watching+0x15/0xd0 [10408.395088][ C2] do_syscall_64+0xbb/0xfd0 [10408.395093][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [10408.395099][ C2] RIP: 0033:0x7f814975fc5e [10408.395106][ C2] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [10408.395109][ C2] RSP: 002b:00007fffd25a6180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [10408.395113][ C2] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f814975fc5e [10408.395116][ C2] RDX: 0000000000001f9c RSI: 00007fffd25a8404 RDI: 0000000000000005 [10408.395117][ C2] RBP: 00007fffd25a6190 R08: 0000000000000000 R09: 0000000000000000 [10408.395119][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd25a83a0 [10408.395121][ C2] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c [10408.395127][ C2] [10416.237631][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU [10416.238035][ C2] rcu: 2-....: (9460686 ticks this GP) idle=7f7c/1/0x4000000000000000 softirq=525045/525047 fqs=3802240 [10416.238517][ C2] rcu: (t=9464465 jiffies g=521497 q=189839 ncpus=4) [10416.238750][ C2] CPU: 2 UID: 0 PID: 20861 Comm: mptcp_connect Tainted: G L 6.18.0-rc7-virtme #1 PREEMPT(full) [10416.238757][ C2] Tainted: [L]=SOFTLOCKUP [10416.238760][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [10416.238763][ C2] RIP: 0010:queued_spin_lock_slowpath+0x460/0xa00 [10416.238775][ C2] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00 [10416.238779][ C2] RSP: 0018:ffa0000000617580 EFLAGS: 00000202 [10416.238784][ C2] RAX: 0000000000000001 RBX: ff11000012560b48 RCX: 0000000000000001 [10416.238787][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff11000012560b48 [10416.238789][ C2] RBP: 1ff40000000c2eb3 R08: ffffffffac5390f1 R09: ffe21c00024ac169 [10416.238792][ C2] R10: ffe21c00024ac16a R11: 0000000000000000 R12: 0000000000000003 [10416.238800][ C2] R13: ffe21c00024ac169 R14: 000000000000001c R15: ff11000012560b48 [10416.238805][ C2] FS: 00007f81496ee740(0000) GS:ff11000086d76000(0000) knlGS:0000000000000000 [10416.238810][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10416.238813][ C2] CR2: 00007ffdd049adc8 CR3: 00000000108f0005 CR4: 0000000000771ef0 [10416.238815][ C2] PKRU: 55555554 [10416.238817][ C2] Call Trace: [10416.238819][ C2] [10416.238821][ C2] ? trace_hardirqs_on+0x36/0x40 [10416.238828][ C2] ? _raw_write_unlock_irqrestore+0x80/0x80 [10416.238833][ C2] ? __printk_cpu_sync_put+0x35/0x60 [10416.238840][ C2] do_raw_spin_lock+0x1d5/0x260 [10416.238846][ C2] ? __rwlock_init+0x150/0x150 [10416.238850][ C2] ? __mptcp_try_fallback+0xd8/0x280 [10416.238857][ C2] __mptcp_try_fallback+0xd8/0x280 [10416.238861][ C2] mptcp_sendmsg_frag+0x16c2/0x3050 [10416.238868][ C2] ? __mptcp_try_fallback+0x280/0x280 [10416.238871][ C2] ? __mptcp_retrans+0x352/0xaa0 [10416.238876][ C2] __mptcp_retrans+0x421/0xaa0 [10416.238881][ C2] ? mptcp_check_and_set_pending+0x1a0/0x1a0 [10416.238885][ C2] ? __lock_release.isra.0+0x59/0x170 [10416.238889][ C2] ? mark_held_locks+0x40/0x70 [10416.238893][ C2] mptcp_release_cb+0x5aa/0xa70 [10416.238898][ C2] ? sk_reset_timer+0x33/0x80 [10416.238905][ C2] ? __mptcp_push_pending+0x520/0x520 [10416.238909][ C2] ? lock_acquire.part.0+0xbc/0x260 [10416.238914][ C2] ? release_sock+0x21/0x1d0 [10416.238919][ C2] release_sock+0xab/0x1d0 [10416.238922][ C2] mptcp_sendmsg+0xd5b/0x1bc0 [10416.238928][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10416.238934][ C2] ? mptcp_stream_accept+0xce0/0xce0 [10416.238937][ C2] ? ovl_sync_status+0x190/0x190 [10416.238943][ C2] ? vfs_iter_write+0x3d8/0xa80 [10416.238948][ C2] ? find_held_lock+0x2b/0x80 [10416.238951][ C2] ? ovl_llseek+0x260/0x260 [10416.238955][ C2] sock_write_iter+0x281/0x4d0 [10416.238960][ C2] ? __up_write+0x1bf/0x520 [10416.238963][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10416.238968][ C2] ? ovl_open_realfile+0x370/0x370 [10416.238971][ C2] ? rcu_read_lock_any_held+0x41/0xa0 [10416.238975][ C2] ? validate_chain+0x287/0x5f0 [10416.238979][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10416.238982][ C2] new_sync_write+0x3c5/0x6f0 [10416.238986][ C2] ? __lock_acquire+0x34c/0x740 [10416.238989][ C2] ? new_sync_read+0x6f0/0x6f0 [10416.238993][ C2] ? lock_acquire.part.0+0xbc/0x260 [10416.238997][ C2] ? find_held_lock+0x2b/0x80 [10416.239000][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10416.239005][ C2] vfs_write+0x65e/0xbb0 [10416.239010][ C2] ksys_write+0x17e/0x200 [10416.239013][ C2] ? __ia32_sys_read+0xc0/0xc0 [10416.239017][ C2] ? rcu_is_watching+0x15/0xd0 [10416.239021][ C2] do_syscall_64+0xbb/0xfd0 [10416.239025][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [10416.239030][ C2] RIP: 0033:0x7f814975fc5e [10416.239035][ C2] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [10416.239038][ C2] RSP: 002b:00007fffd25a6180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [10416.239042][ C2] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f814975fc5e [10416.239045][ C2] RDX: 0000000000001f9c RSI: 00007fffd25a8404 RDI: 0000000000000005 [10416.239047][ C2] RBP: 00007fffd25a6190 R08: 0000000000000000 R09: 0000000000000000 [10416.239048][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd25a83a0 [10416.239050][ C2] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c [10416.239055][ C2] [10440.394747][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 8840s! [mptcp_connect:20861] [10440.394761][ C2] Modules linked in: act_csum act_pedit cls_fw sch_ingress xt_mark xt_statistic xt_length xt_bpf sch_netem ipt_REJECT nf_reject_ipv4 nft_compat nf_tables [10440.394788][ C2] irq event stamp: 21232 [10440.394790][ C2] hardirqs last enabled at (21232): [] _raw_spin_unlock_irqrestore+0x53/0x80 [10440.394805][ C2] hardirqs last disabled at (21231): [] _raw_spin_lock_irqsave+0x50/0x60 [10440.394809][ C2] softirqs last enabled at (21212): [] __mptcp_retrans+0x2cb/0xaa0 [10440.394816][ C2] softirqs last disabled at (21214): [] __mptcp_retrans+0x352/0xaa0 [10440.394826][ C2] CPU: 2 UID: 0 PID: 20861 Comm: mptcp_connect Tainted: G L 6.18.0-rc7-virtme #1 PREEMPT(full) [10440.394833][ C2] Tainted: [L]=SOFTLOCKUP [10440.394835][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [10440.394839][ C2] RIP: 0010:kasan_check_range+0x69/0x200 [10440.394848][ C2] Code: 0f 82 d1 00 00 00 4c 8d 4c 37 ff 48 89 f9 4c 8d 74 37 ff 48 b8 00 00 00 00 00 fc ff df 49 c1 e9 03 48 c1 e9 03 4e 8d 54 08 01 <49> 8d 1c 01 4c 8d 0c 01 4c 89 d1 4c 29 c9 4c 89 c8 48 83 f9 10 0f [10440.394852][ C2] RSP: 0018:ffa0000000617560 EFLAGS: 00000216 [10440.394856][ C2] RAX: dffffc0000000000 RBX: ff11000012560b48 RCX: 1fe22000024ac169 [10440.394859][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff11000012560b48 [10440.394862][ C2] RBP: 1ff40000000c2eb3 R08: ffffffffac5390f1 R09: 1fe22000024ac169 [10440.394864][ C2] R10: ffe21c00024ac16a R11: 0000000000000000 R12: 0000000000000003 [10440.394867][ C2] R13: ffe21c00024ac169 R14: ff11000012560b4b R15: ff11000012560b48 [10440.394872][ C2] FS: 00007f81496ee740(0000) GS:ff11000086d76000(0000) knlGS:0000000000000000 [10440.394878][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10440.394881][ C2] CR2: 00007ffdd049adc8 CR3: 00000000108f0005 CR4: 0000000000771ef0 [10440.394883][ C2] PKRU: 55555554 [10440.394885][ C2] Call Trace: [10440.394891][ C2] [10440.394898][ C2] queued_spin_lock_slowpath+0xb1/0xa00 [10440.394904][ C2] ? trace_hardirqs_on+0x36/0x40 [10440.394911][ C2] ? _raw_write_unlock_irqrestore+0x80/0x80 [10440.394916][ C2] ? __printk_cpu_sync_put+0x35/0x60 [10440.394923][ C2] do_raw_spin_lock+0x1d5/0x260 [10440.394930][ C2] ? __rwlock_init+0x150/0x150 [10440.394933][ C2] ? __mptcp_try_fallback+0xd8/0x280 [10440.394939][ C2] __mptcp_try_fallback+0xd8/0x280 [10440.394944][ C2] mptcp_sendmsg_frag+0x16c2/0x3050 [10440.394952][ C2] ? __mptcp_try_fallback+0x280/0x280 [10440.394955][ C2] ? __mptcp_retrans+0x352/0xaa0 [10440.394961][ C2] __mptcp_retrans+0x421/0xaa0 [10440.394967][ C2] ? mptcp_check_and_set_pending+0x1a0/0x1a0 [10440.394972][ C2] ? __lock_release.isra.0+0x59/0x170 [10440.394976][ C2] ? mark_held_locks+0x40/0x70 [10440.394981][ C2] mptcp_release_cb+0x5aa/0xa70 [10440.394986][ C2] ? sk_reset_timer+0x33/0x80 [10440.394994][ C2] ? __mptcp_push_pending+0x520/0x520 [10440.395008][ C2] ? lock_acquire.part.0+0xbc/0x260 [10440.395013][ C2] ? release_sock+0x21/0x1d0 [10440.395018][ C2] release_sock+0xab/0x1d0 [10440.395022][ C2] mptcp_sendmsg+0xd5b/0x1bc0 [10440.395030][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10440.395036][ C2] ? mptcp_stream_accept+0xce0/0xce0 [10440.395040][ C2] ? ovl_sync_status+0x190/0x190 [10440.395047][ C2] ? vfs_iter_write+0x3d8/0xa80 [10440.395051][ C2] ? find_held_lock+0x2b/0x80 [10440.395055][ C2] ? ovl_llseek+0x260/0x260 [10440.395060][ C2] sock_write_iter+0x281/0x4d0 [10440.395066][ C2] ? __up_write+0x1bf/0x520 [10440.395069][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10440.395076][ C2] ? ovl_open_realfile+0x370/0x370 [10440.395079][ C2] ? rcu_read_lock_any_held+0x41/0xa0 [10440.395084][ C2] ? validate_chain+0x287/0x5f0 [10440.395089][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10440.395092][ C2] new_sync_write+0x3c5/0x6f0 [10440.395097][ C2] ? __lock_acquire+0x34c/0x740 [10440.395100][ C2] ? new_sync_read+0x6f0/0x6f0 [10440.395105][ C2] ? lock_acquire.part.0+0xbc/0x260 [10440.395108][ C2] ? find_held_lock+0x2b/0x80 [10440.395112][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10440.395118][ C2] vfs_write+0x65e/0xbb0 [10440.395123][ C2] ksys_write+0x17e/0x200 [10440.395127][ C2] ? __ia32_sys_read+0xc0/0xc0 [10440.395132][ C2] ? rcu_is_watching+0x15/0xd0 [10440.395137][ C2] do_syscall_64+0xbb/0xfd0 [10440.395142][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [10440.395148][ C2] RIP: 0033:0x7f814975fc5e [10440.395155][ C2] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [10440.395158][ C2] RSP: 002b:00007fffd25a6180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [10440.395163][ C2] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f814975fc5e [10440.395166][ C2] RDX: 0000000000001f9c RSI: 00007fffd25a8404 RDI: 0000000000000005 [10440.395168][ C2] RBP: 00007fffd25a6190 R08: 0000000000000000 R09: 0000000000000000 [10440.395171][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd25a83a0 [10440.395173][ C2] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c [10440.395179][ C2] [10454.352814][ T17] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 9472546 jiffies s: 79797 root: 0x4/. [10454.355917][ T17] rcu: blocking rcu_node structures (internal RCU debug): [10454.356507][ T17] Sending NMI from CPU 3 to CPUs 2: [10454.357158][ C2] NMI backtrace for cpu 2 [10454.357178][ C2] CPU: 2 UID: 0 PID: 20861 Comm: mptcp_connect Tainted: G L 6.18.0-rc7-virtme #1 PREEMPT(full) [10454.357186][ C2] Tainted: [L]=SOFTLOCKUP [10454.357188][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [10454.357192][ C2] RIP: 0010:vm_interrupt+0x44/0x110 [10454.357205][ C2] Code: 48 8d be 40 05 00 00 41 54 48 89 fa 55 48 c1 ea 03 53 48 83 ec 08 80 3c 02 00 0f 85 aa 00 00 00 48 8b 86 40 05 00 00 8b 58 60 <48> 8b 86 40 05 00 00 89 58 64 89 dd 83 e5 02 75 6b 83 e3 01 74 57 [10454.357209][ C2] RSP: 0018:ffa0000000218ec8 EFLAGS: 00000046 [10454.357215][ C2] RAX: ffa000000002ec00 RBX: 0000000000000001 RCX: 0000000000000000 [10454.357219][ C2] RDX: 1fe2200000bf04a8 RSI: ff11000005f82000 RDI: ff11000005f82540 [10454.357221][ C2] RBP: dffffc0000000000 R08: ffffffffaa306030 R09: fffffbfff5b921ca [10454.357224][ C2] R10: 0000000000000002 R11: ffa0000000218ff8 R12: 0000000000000032 [10454.357226][ C2] R13: 0000000000000032 R14: ff11000002980400 R15: ff11000005e55580 [10454.357232][ C2] FS: 00007f81496ee740(0000) GS:ff11000086d76000(0000) knlGS:0000000000000000 [10454.357238][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10454.357241][ C2] CR2: 00007ffdd049adc8 CR3: 00000000108f0005 CR4: 0000000000771ef0 [10454.357243][ C2] PKRU: 55555554 [10454.357245][ C2] Call Trace: [10454.357252][ C2] [10454.357258][ C2] ? vm_del_vqs+0x290/0x290 [10454.357263][ C2] __handle_irq_event_percpu+0x187/0x3e0 [10454.357272][ C2] handle_irq_event+0xab/0x1c0 [10454.357276][ C2] handle_fasteoi_irq+0x2aa/0xa50 [10454.357282][ C2] __common_interrupt+0xae/0x270 [10454.357288][ C2] ? __sysvec_apic_timer_interrupt+0xe9/0x160 [10454.357295][ C2] common_interrupt+0xc4/0x100 [10454.357302][ C2] [10454.357303][ C2] [10454.357305][ C2] asm_common_interrupt+0x26/0x40 [10454.357311][ C2] RIP: 0010:queued_spin_lock_slowpath+0x460/0xa00 [10454.357318][ C2] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00 [10454.357321][ C2] RSP: 0018:ffa0000000617580 EFLAGS: 00000202 [10454.357324][ C2] RAX: 0000000000000001 RBX: ff11000012560b48 RCX: 0000000000000001 [10454.357326][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff11000012560b48 [10454.357329][ C2] RBP: 1ff40000000c2eb3 R08: ffffffffac5390f1 R09: ffe21c00024ac169 [10454.357331][ C2] R10: ffe21c00024ac16a R11: 0000000000000000 R12: 0000000000000003 [10454.357333][ C2] R13: ffe21c00024ac169 R14: 000000000000001c R15: ff11000012560b48 [10454.357337][ C2] ? queued_spin_lock_slowpath+0xb1/0xa00 [10454.357343][ C2] ? trace_hardirqs_on+0x36/0x40 [10454.357349][ C2] ? _raw_write_unlock_irqrestore+0x80/0x80 [10454.357354][ C2] ? __printk_cpu_sync_put+0x35/0x60 [10454.357360][ C2] do_raw_spin_lock+0x1d5/0x260 [10454.357366][ C2] ? __rwlock_init+0x150/0x150 [10454.357370][ C2] ? __mptcp_try_fallback+0xd8/0x280 [10454.357376][ C2] __mptcp_try_fallback+0xd8/0x280 [10454.357381][ C2] mptcp_sendmsg_frag+0x16c2/0x3050 [10454.357388][ C2] ? __mptcp_try_fallback+0x280/0x280 [10454.357392][ C2] ? __mptcp_retrans+0x352/0xaa0 [10454.357397][ C2] __mptcp_retrans+0x421/0xaa0 [10454.357403][ C2] ? mptcp_check_and_set_pending+0x1a0/0x1a0 [10454.357407][ C2] ? __lock_release.isra.0+0x59/0x170 [10454.357411][ C2] ? mark_held_locks+0x40/0x70 [10454.357416][ C2] mptcp_release_cb+0x5aa/0xa70 [10454.357420][ C2] ? sk_reset_timer+0x33/0x80 [10454.357428][ C2] ? __mptcp_push_pending+0x520/0x520 [10454.357432][ C2] ? lock_acquire.part.0+0xbc/0x260 [10454.357437][ C2] ? release_sock+0x21/0x1d0 [10454.357441][ C2] release_sock+0xab/0x1d0 [10454.357445][ C2] mptcp_sendmsg+0xd5b/0x1bc0 [10454.357452][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10454.357458][ C2] ? mptcp_stream_accept+0xce0/0xce0 [10454.357462][ C2] ? ovl_sync_status+0x190/0x190 [10454.357467][ C2] ? vfs_iter_write+0x3d8/0xa80 [10454.357472][ C2] ? find_held_lock+0x2b/0x80 [10454.357475][ C2] ? ovl_llseek+0x260/0x260 [10454.357480][ C2] sock_write_iter+0x281/0x4d0 [10454.357485][ C2] ? __up_write+0x1bf/0x520 [10454.357489][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10454.357494][ C2] ? ovl_open_realfile+0x370/0x370 [10454.357498][ C2] ? rcu_read_lock_any_held+0x41/0xa0 [10454.357502][ C2] ? validate_chain+0x287/0x5f0 [10454.357507][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10454.357510][ C2] new_sync_write+0x3c5/0x6f0 [10454.357514][ C2] ? __lock_acquire+0x34c/0x740 [10454.357518][ C2] ? new_sync_read+0x6f0/0x6f0 [10454.357522][ C2] ? lock_acquire.part.0+0xbc/0x260 [10454.357525][ C2] ? find_held_lock+0x2b/0x80 [10454.357529][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10454.357535][ C2] vfs_write+0x65e/0xbb0 [10454.357539][ C2] ksys_write+0x17e/0x200 [10454.357543][ C2] ? __ia32_sys_read+0xc0/0xc0 [10454.357548][ C2] ? rcu_is_watching+0x15/0xd0 [10454.357553][ C2] do_syscall_64+0xbb/0xfd0 [10454.357557][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [10454.357561][ C2] RIP: 0033:0x7f814975fc5e [10454.357568][ C2] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [10454.357571][ C2] RSP: 002b:00007fffd25a6180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [10454.357575][ C2] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f814975fc5e [10454.357577][ C2] RDX: 0000000000001f9c RSI: 00007fffd25a8404 RDI: 0000000000000005 [10454.357579][ C2] RBP: 00007fffd25a6190 R08: 0000000000000000 R09: 0000000000000000 [10454.357581][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd25a83a0 [10454.357583][ C2] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c [10454.357589][ C2] [10480.394746][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 8877s! [mptcp_connect:20861] [10480.394761][ C2] Modules linked in: act_csum act_pedit cls_fw sch_ingress xt_mark xt_statistic xt_length xt_bpf sch_netem ipt_REJECT nf_reject_ipv4 nft_compat nf_tables [10480.394785][ C2] irq event stamp: 21232 [10480.394787][ C2] hardirqs last enabled at (21232): [] _raw_spin_unlock_irqrestore+0x53/0x80 [10480.394801][ C2] hardirqs last disabled at (21231): [] _raw_spin_lock_irqsave+0x50/0x60 [10480.394805][ C2] softirqs last enabled at (21212): [] __mptcp_retrans+0x2cb/0xaa0 [10480.394811][ C2] softirqs last disabled at (21214): [] __mptcp_retrans+0x352/0xaa0 [10480.394821][ C2] CPU: 2 UID: 0 PID: 20861 Comm: mptcp_connect Tainted: G L 6.18.0-rc7-virtme #1 PREEMPT(full) [10480.394827][ C2] Tainted: [L]=SOFTLOCKUP [10480.394829][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [10480.394832][ C2] RIP: 0010:queued_spin_lock_slowpath+0x460/0xa00 [10480.394839][ C2] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00 [10480.394842][ C2] RSP: 0018:ffa0000000617580 EFLAGS: 00000202 [10480.394846][ C2] RAX: 0000000000000001 RBX: ff11000012560b48 RCX: 0000000000000001 [10480.394849][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff11000012560b48 [10480.394851][ C2] RBP: 1ff40000000c2eb3 R08: ffffffffac5390f1 R09: ffe21c00024ac169 [10480.394853][ C2] R10: ffe21c00024ac16a R11: 0000000000000000 R12: 0000000000000003 [10480.394855][ C2] R13: ffe21c00024ac169 R14: 000000000000001c R15: ff11000012560b48 [10480.394860][ C2] FS: 00007f81496ee740(0000) GS:ff11000086d76000(0000) knlGS:0000000000000000 [10480.394866][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10480.394868][ C2] CR2: 00007ffdd049adc8 CR3: 00000000108f0005 CR4: 0000000000771ef0 [10480.394870][ C2] PKRU: 55555554 [10480.394872][ C2] Call Trace: [10480.394878][ C2] [10480.394884][ C2] ? trace_hardirqs_on+0x36/0x40 [10480.394891][ C2] ? _raw_write_unlock_irqrestore+0x80/0x80 [10480.394896][ C2] ? __printk_cpu_sync_put+0x35/0x60 [10480.394903][ C2] do_raw_spin_lock+0x1d5/0x260 [10480.394910][ C2] ? __rwlock_init+0x150/0x150 [10480.394914][ C2] ? __mptcp_try_fallback+0xd8/0x280 [10480.394919][ C2] __mptcp_try_fallback+0xd8/0x280 [10480.394924][ C2] mptcp_sendmsg_frag+0x16c2/0x3050 [10480.394930][ C2] ? __mptcp_try_fallback+0x280/0x280 [10480.394934][ C2] ? __mptcp_retrans+0x352/0xaa0 [10480.394939][ C2] __mptcp_retrans+0x421/0xaa0 [10480.394945][ C2] ? mptcp_check_and_set_pending+0x1a0/0x1a0 [10480.394950][ C2] ? __lock_release.isra.0+0x59/0x170 [10480.394953][ C2] ? mark_held_locks+0x40/0x70 [10480.394958][ C2] mptcp_release_cb+0x5aa/0xa70 [10480.394963][ C2] ? sk_reset_timer+0x33/0x80 [10480.394971][ C2] ? __mptcp_push_pending+0x520/0x520 [10480.394975][ C2] ? lock_acquire.part.0+0xbc/0x260 [10480.394980][ C2] ? release_sock+0x21/0x1d0 [10480.394985][ C2] release_sock+0xab/0x1d0 [10480.394989][ C2] mptcp_sendmsg+0xd5b/0x1bc0 [10480.394996][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10480.395002][ C2] ? mptcp_stream_accept+0xce0/0xce0 [10480.395005][ C2] ? ovl_sync_status+0x190/0x190 [10480.395012][ C2] ? vfs_iter_write+0x3d8/0xa80 [10480.395016][ C2] ? find_held_lock+0x2b/0x80 [10480.395020][ C2] ? ovl_llseek+0x260/0x260 [10480.395024][ C2] sock_write_iter+0x281/0x4d0 [10480.395029][ C2] ? __up_write+0x1bf/0x520 [10480.395033][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10480.395039][ C2] ? ovl_open_realfile+0x370/0x370 [10480.395042][ C2] ? rcu_read_lock_any_held+0x41/0xa0 [10480.395047][ C2] ? validate_chain+0x287/0x5f0 [10480.395051][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10480.395054][ C2] new_sync_write+0x3c5/0x6f0 [10480.395058][ C2] ? __lock_acquire+0x34c/0x740 [10480.395062][ C2] ? new_sync_read+0x6f0/0x6f0 [10480.395066][ C2] ? lock_acquire.part.0+0xbc/0x260 [10480.395069][ C2] ? find_held_lock+0x2b/0x80 [10480.395073][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10480.395078][ C2] vfs_write+0x65e/0xbb0 [10480.395083][ C2] ksys_write+0x17e/0x200 [10480.395087][ C2] ? __ia32_sys_read+0xc0/0xc0 [10480.395091][ C2] ? rcu_is_watching+0x15/0xd0 [10480.395096][ C2] do_syscall_64+0xbb/0xfd0 [10480.395101][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [10480.395106][ C2] RIP: 0033:0x7f814975fc5e [10480.395112][ C2] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [10480.395115][ C2] RSP: 002b:00007fffd25a6180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [10480.395119][ C2] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f814975fc5e [10480.395121][ C2] RDX: 0000000000001f9c RSI: 00007fffd25a8404 RDI: 0000000000000005 [10480.395123][ C2] RBP: 00007fffd25a6190 R08: 0000000000000000 R09: 0000000000000000 [10480.395125][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd25a83a0 [10480.395127][ C2] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c [10480.395133][ C2] [10494.242632][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU [10494.243106][ C2] rcu: 2-....: (9538521 ticks this GP) idle=7f7c/1/0x4000000000000000 softirq=525045/525047 fqs=3832936 [10494.243626][ C2] rcu: (t=9542470 jiffies g=521497 q=191433 ncpus=4) [10494.244884][ C2] CPU: 2 UID: 0 PID: 20861 Comm: mptcp_connect Tainted: G L 6.18.0-rc7-virtme #1 PREEMPT(full) [10494.244893][ C2] Tainted: [L]=SOFTLOCKUP [10494.244896][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [10494.244900][ C2] RIP: 0010:queued_spin_lock_slowpath+0x460/0xa00 [10494.244914][ C2] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00 [10494.244918][ C2] RSP: 0018:ffa0000000617580 EFLAGS: 00000202 [10494.244924][ C2] RAX: 0000000000000001 RBX: ff11000012560b48 RCX: 0000000000000001 [10494.244927][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff11000012560b48 [10494.244929][ C2] RBP: 1ff40000000c2eb3 R08: ffffffffac5390f1 R09: ffe21c00024ac169 [10494.244932][ C2] R10: ffe21c00024ac16a R11: 0000000000000000 R12: 0000000000000003 [10494.244934][ C2] R13: ffe21c00024ac169 R14: 000000000000001c R15: ff11000012560b48 [10494.244940][ C2] FS: 00007f81496ee740(0000) GS:ff11000086d76000(0000) knlGS:0000000000000000 [10494.244946][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10494.244948][ C2] CR2: 00007ffdd049adc8 CR3: 00000000108f0005 CR4: 0000000000771ef0 [10494.244951][ C2] PKRU: 55555554 [10494.244953][ C2] Call Trace: [10494.244955][ C2] [10494.244957][ C2] ? trace_hardirqs_on+0x36/0x40 [10494.244965][ C2] ? _raw_write_unlock_irqrestore+0x80/0x80 [10494.244971][ C2] ? __printk_cpu_sync_put+0x35/0x60 [10494.244978][ C2] do_raw_spin_lock+0x1d5/0x260 [10494.244984][ C2] ? __rwlock_init+0x150/0x150 [10494.244988][ C2] ? __mptcp_try_fallback+0xd8/0x280 [10494.244995][ C2] __mptcp_try_fallback+0xd8/0x280 [10494.245000][ C2] mptcp_sendmsg_frag+0x16c2/0x3050 [10494.245007][ C2] ? __mptcp_try_fallback+0x280/0x280 [10494.245010][ C2] ? __mptcp_retrans+0x352/0xaa0 [10494.245015][ C2] __mptcp_retrans+0x421/0xaa0 [10494.245021][ C2] ? mptcp_check_and_set_pending+0x1a0/0x1a0 [10494.245026][ C2] ? __lock_release.isra.0+0x59/0x170 [10494.245030][ C2] ? mark_held_locks+0x40/0x70 [10494.245035][ C2] mptcp_release_cb+0x5aa/0xa70 [10494.245039][ C2] ? sk_reset_timer+0x33/0x80 [10494.245048][ C2] ? __mptcp_push_pending+0x520/0x520 [10494.245052][ C2] ? lock_acquire.part.0+0xbc/0x260 [10494.245057][ C2] ? release_sock+0x21/0x1d0 [10494.245062][ C2] release_sock+0xab/0x1d0 [10494.245065][ C2] mptcp_sendmsg+0xd5b/0x1bc0 [10494.245072][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10494.245077][ C2] ? mptcp_stream_accept+0xce0/0xce0 [10494.245081][ C2] ? ovl_sync_status+0x190/0x190 [10494.245087][ C2] ? vfs_iter_write+0x3d8/0xa80 [10494.245092][ C2] ? find_held_lock+0x2b/0x80 [10494.245095][ C2] ? ovl_llseek+0x260/0x260 [10494.245100][ C2] sock_write_iter+0x281/0x4d0 [10494.245104][ C2] ? __up_write+0x1bf/0x520 [10494.245108][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10494.245113][ C2] ? ovl_open_realfile+0x370/0x370 [10494.245117][ C2] ? rcu_read_lock_any_held+0x41/0xa0 [10494.245122][ C2] ? validate_chain+0x287/0x5f0 [10494.245126][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10494.245129][ C2] new_sync_write+0x3c5/0x6f0 [10494.245134][ C2] ? __lock_acquire+0x34c/0x740 [10494.245137][ C2] ? new_sync_read+0x6f0/0x6f0 [10494.245142][ C2] ? lock_acquire.part.0+0xbc/0x260 [10494.245145][ C2] ? find_held_lock+0x2b/0x80 [10494.245149][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10494.245154][ C2] vfs_write+0x65e/0xbb0 [10494.245159][ C2] ksys_write+0x17e/0x200 [10494.245163][ C2] ? __ia32_sys_read+0xc0/0xc0 [10494.245167][ C2] ? rcu_is_watching+0x15/0xd0 [10494.245172][ C2] do_syscall_64+0xbb/0xfd0 [10494.245177][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [10494.245182][ C2] RIP: 0033:0x7f814975fc5e [10494.245187][ C2] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [10494.245191][ C2] RSP: 002b:00007fffd25a6180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [10494.245195][ C2] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f814975fc5e [10494.245197][ C2] RDX: 0000000000001f9c RSI: 00007fffd25a8404 RDI: 0000000000000005 [10494.245199][ C2] RBP: 00007fffd25a6190 R08: 0000000000000000 R09: 0000000000000000 [10494.245201][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd25a83a0 [10494.245203][ C2] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c [10494.245208][ C2] [10520.394746][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 8914s! [mptcp_connect:20861] [10520.394762][ C2] Modules linked in: act_csum act_pedit cls_fw sch_ingress xt_mark xt_statistic xt_length xt_bpf sch_netem ipt_REJECT nf_reject_ipv4 nft_compat nf_tables [10520.394787][ C2] irq event stamp: 21232 [10520.394789][ C2] hardirqs last enabled at (21232): [] _raw_spin_unlock_irqrestore+0x53/0x80 [10520.394804][ C2] hardirqs last disabled at (21231): [] _raw_spin_lock_irqsave+0x50/0x60 [10520.394808][ C2] softirqs last enabled at (21212): [] __mptcp_retrans+0x2cb/0xaa0 [10520.394815][ C2] softirqs last disabled at (21214): [] __mptcp_retrans+0x352/0xaa0 [10520.394825][ C2] CPU: 2 UID: 0 PID: 20861 Comm: mptcp_connect Tainted: G L 6.18.0-rc7-virtme #1 PREEMPT(full) [10520.394832][ C2] Tainted: [L]=SOFTLOCKUP [10520.394834][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [10520.394838][ C2] RIP: 0010:queued_spin_lock_slowpath+0x460/0xa00 [10520.394844][ C2] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00 [10520.394848][ C2] RSP: 0018:ffa0000000617580 EFLAGS: 00000202 [10520.394853][ C2] RAX: 0000000000000001 RBX: ff11000012560b48 RCX: 0000000000000001 [10520.394856][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff11000012560b48 [10520.394858][ C2] RBP: 1ff40000000c2eb3 R08: ffffffffac5390f1 R09: ffe21c00024ac169 [10520.394860][ C2] R10: ffe21c00024ac16a R11: 0000000000000000 R12: 0000000000000003 [10520.394863][ C2] R13: ffe21c00024ac169 R14: 000000000000001c R15: ff11000012560b48 [10520.394869][ C2] FS: 00007f81496ee740(0000) GS:ff11000086d76000(0000) knlGS:0000000000000000 [10520.394874][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10520.394877][ C2] CR2: 00007ffdd049adc8 CR3: 00000000108f0005 CR4: 0000000000771ef0 [10520.394879][ C2] PKRU: 55555554 [10520.394881][ C2] Call Trace: [10520.394887][ C2] [10520.394893][ C2] ? trace_hardirqs_on+0x36/0x40 [10520.394901][ C2] ? _raw_write_unlock_irqrestore+0x80/0x80 [10520.394906][ C2] ? __printk_cpu_sync_put+0x35/0x60 [10520.394913][ C2] do_raw_spin_lock+0x1d5/0x260 [10520.394920][ C2] ? __rwlock_init+0x150/0x150 [10520.394924][ C2] ? __mptcp_try_fallback+0xd8/0x280 [10520.394929][ C2] __mptcp_try_fallback+0xd8/0x280 [10520.394934][ C2] mptcp_sendmsg_frag+0x16c2/0x3050 [10520.394941][ C2] ? __mptcp_try_fallback+0x280/0x280 [10520.394945][ C2] ? __mptcp_retrans+0x352/0xaa0 [10520.394950][ C2] __mptcp_retrans+0x421/0xaa0 [10520.394956][ C2] ? mptcp_check_and_set_pending+0x1a0/0x1a0 [10520.394961][ C2] ? __lock_release.isra.0+0x59/0x170 [10520.394965][ C2] ? mark_held_locks+0x40/0x70 [10520.394970][ C2] mptcp_release_cb+0x5aa/0xa70 [10520.394974][ C2] ? sk_reset_timer+0x33/0x80 [10520.394983][ C2] ? __mptcp_push_pending+0x520/0x520 [10520.394987][ C2] ? lock_acquire.part.0+0xbc/0x260 [10520.394992][ C2] ? release_sock+0x21/0x1d0 [10520.394997][ C2] release_sock+0xab/0x1d0 [10520.395002][ C2] mptcp_sendmsg+0xd5b/0x1bc0 [10520.395009][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10520.395015][ C2] ? mptcp_stream_accept+0xce0/0xce0 [10520.395019][ C2] ? ovl_sync_status+0x190/0x190 [10520.395025][ C2] ? vfs_iter_write+0x3d8/0xa80 [10520.395030][ C2] ? find_held_lock+0x2b/0x80 [10520.395034][ C2] ? ovl_llseek+0x260/0x260 [10520.395039][ C2] sock_write_iter+0x281/0x4d0 [10520.395044][ C2] ? __up_write+0x1bf/0x520 [10520.395048][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10520.395054][ C2] ? ovl_open_realfile+0x370/0x370 [10520.395057][ C2] ? rcu_read_lock_any_held+0x41/0xa0 [10520.395062][ C2] ? validate_chain+0x287/0x5f0 [10520.395066][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10520.395069][ C2] new_sync_write+0x3c5/0x6f0 [10520.395074][ C2] ? __lock_acquire+0x34c/0x740 [10520.395078][ C2] ? new_sync_read+0x6f0/0x6f0 [10520.395082][ C2] ? lock_acquire.part.0+0xbc/0x260 [10520.395085][ C2] ? find_held_lock+0x2b/0x80 [10520.395089][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10520.395094][ C2] vfs_write+0x65e/0xbb0 [10520.395099][ C2] ksys_write+0x17e/0x200 [10520.395103][ C2] ? __ia32_sys_read+0xc0/0xc0 [10520.395107][ C2] ? rcu_is_watching+0x15/0xd0 [10520.395112][ C2] do_syscall_64+0xbb/0xfd0 [10520.395117][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [10520.395123][ C2] RIP: 0033:0x7f814975fc5e [10520.395135][ C2] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [10520.395140][ C2] RSP: 002b:00007fffd25a6180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [10520.395145][ C2] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f814975fc5e [10520.395148][ C2] RDX: 0000000000001f9c RSI: 00007fffd25a8404 RDI: 0000000000000005 [10520.395151][ C2] RBP: 00007fffd25a6190 R08: 0000000000000000 R09: 0000000000000000 [10520.395153][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd25a83a0 [10520.395155][ C2] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c [10520.395162][ C2] [10548.394743][ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 8940s! [mptcp_connect:20861] [10548.394753][ C2] Modules linked in: act_csum act_pedit cls_fw sch_ingress xt_mark xt_statistic xt_length xt_bpf sch_netem ipt_REJECT nf_reject_ipv4 nft_compat nf_tables [10548.394767][ C2] irq event stamp: 21232 [10548.394768][ C2] hardirqs last enabled at (21232): [] _raw_spin_unlock_irqrestore+0x53/0x80 [10548.394777][ C2] hardirqs last disabled at (21231): [] _raw_spin_lock_irqsave+0x50/0x60 [10548.394779][ C2] softirqs last enabled at (21212): [] __mptcp_retrans+0x2cb/0xaa0 [10548.394783][ C2] softirqs last disabled at (21214): [] __mptcp_retrans+0x352/0xaa0 [10548.394789][ C2] CPU: 2 UID: 0 PID: 20861 Comm: mptcp_connect Tainted: G L 6.18.0-rc7-virtme #1 PREEMPT(full) [10548.394792][ C2] Tainted: [L]=SOFTLOCKUP [10548.394793][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [10548.394796][ C2] RIP: 0010:queued_spin_lock_slowpath+0x460/0xa00 [10548.394799][ C2] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00 [10548.394801][ C2] RSP: 0018:ffa0000000617580 EFLAGS: 00000202 [10548.394804][ C2] RAX: 0000000000000001 RBX: ff11000012560b48 RCX: 0000000000000001 [10548.394805][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff11000012560b48 [10548.394806][ C2] RBP: 1ff40000000c2eb3 R08: ffffffffac5390f1 R09: ffe21c00024ac169 [10548.394807][ C2] R10: ffe21c00024ac16a R11: 0000000000000000 R12: 0000000000000003 [10548.394807][ C2] R13: ffe21c00024ac169 R14: 000000000000001c R15: ff11000012560b48 [10548.394810][ C2] FS: 00007f81496ee740(0000) GS:ff11000086d76000(0000) knlGS:0000000000000000 [10548.394813][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10548.394814][ C2] CR2: 00007ffdd049adc8 CR3: 00000000108f0005 CR4: 0000000000771ef0 [10548.394815][ C2] PKRU: 55555554 [10548.394816][ C2] Call Trace: [10548.394820][ C2] [10548.394824][ C2] ? trace_hardirqs_on+0x36/0x40 [10548.394828][ C2] ? _raw_write_unlock_irqrestore+0x80/0x80 [10548.394831][ C2] ? __printk_cpu_sync_put+0x35/0x60 [10548.394835][ C2] do_raw_spin_lock+0x1d5/0x260 [10548.394839][ C2] ? __rwlock_init+0x150/0x150 [10548.394841][ C2] ? __mptcp_try_fallback+0xd8/0x280 [10548.394843][ C2] __mptcp_try_fallback+0xd8/0x280 [10548.394846][ C2] mptcp_sendmsg_frag+0x16c2/0x3050 [10548.394849][ C2] ? __mptcp_try_fallback+0x280/0x280 [10548.394851][ C2] ? __mptcp_retrans+0x352/0xaa0 [10548.394853][ C2] __mptcp_retrans+0x421/0xaa0 [10548.394856][ C2] ? mptcp_check_and_set_pending+0x1a0/0x1a0 [10548.394858][ C2] ? __lock_release.isra.0+0x59/0x170 [10548.394860][ C2] ? mark_held_locks+0x40/0x70 [10548.394862][ C2] mptcp_release_cb+0x5aa/0xa70 [10548.394865][ C2] ? sk_reset_timer+0x33/0x80 [10548.394869][ C2] ? __mptcp_push_pending+0x520/0x520 [10548.394871][ C2] ? lock_acquire.part.0+0xbc/0x260 [10548.394873][ C2] ? release_sock+0x21/0x1d0 [10548.394876][ C2] release_sock+0xab/0x1d0 [10548.394878][ C2] mptcp_sendmsg+0xd5b/0x1bc0 [10548.394881][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10548.394885][ C2] ? mptcp_stream_accept+0xce0/0xce0 [10548.394887][ C2] ? ovl_sync_status+0x190/0x190 [10548.394890][ C2] ? vfs_iter_write+0x3d8/0xa80 [10548.394893][ C2] ? find_held_lock+0x2b/0x80 [10548.394895][ C2] ? ovl_llseek+0x260/0x260 [10548.394897][ C2] sock_write_iter+0x281/0x4d0 [10548.394900][ C2] ? __up_write+0x1bf/0x520 [10548.394902][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10548.394905][ C2] ? ovl_open_realfile+0x370/0x370 [10548.394906][ C2] ? rcu_read_lock_any_held+0x41/0xa0 [10548.394909][ C2] ? validate_chain+0x287/0x5f0 [10548.394911][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10548.394912][ C2] new_sync_write+0x3c5/0x6f0 [10548.394915][ C2] ? __lock_acquire+0x34c/0x740 [10548.394917][ C2] ? new_sync_read+0x6f0/0x6f0 [10548.394919][ C2] ? lock_acquire.part.0+0xbc/0x260 [10548.394926][ C2] ? find_held_lock+0x2b/0x80 [10548.394928][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10548.394930][ C2] vfs_write+0x65e/0xbb0 [10548.394933][ C2] ksys_write+0x17e/0x200 [10548.394935][ C2] ? __ia32_sys_read+0xc0/0xc0 [10548.394936][ C2] ? rcu_is_watching+0x15/0xd0 [10548.394939][ C2] do_syscall_64+0xbb/0xfd0 [10548.394942][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [10548.394946][ C2] RIP: 0033:0x7f814975fc5e [10548.394950][ C2] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [10548.394951][ C2] RSP: 002b:00007fffd25a6180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [10548.394953][ C2] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f814975fc5e [10548.394954][ C2] RDX: 0000000000001f9c RSI: 00007fffd25a8404 RDI: 0000000000000005 [10548.394955][ C2] RBP: 00007fffd25a6190 R08: 0000000000000000 R09: 0000000000000000 [10548.394956][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd25a83a0 [10548.394956][ C2] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c [10548.394959][ C2] [10552.655637][ T17] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 2-.... } 9570850 jiffies s: 79797 root: 0x4/. [10552.656038][ T17] rcu: blocking rcu_node structures (internal RCU debug): [10552.656223][ T17] Sending NMI from CPU 3 to CPUs 2: [10552.656337][ C2] NMI backtrace for cpu 2 [10552.656350][ C2] CPU: 2 UID: 0 PID: 20861 Comm: mptcp_connect Tainted: G L 6.18.0-rc7-virtme #1 PREEMPT(full) [10552.656355][ C2] Tainted: [L]=SOFTLOCKUP [10552.656357][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [10552.656359][ C2] RIP: 0010:vm_interrupt+0x44/0x110 [10552.656368][ C2] Code: 48 8d be 40 05 00 00 41 54 48 89 fa 55 48 c1 ea 03 53 48 83 ec 08 80 3c 02 00 0f 85 aa 00 00 00 48 8b 86 40 05 00 00 8b 58 60 <48> 8b 86 40 05 00 00 89 58 64 89 dd 83 e5 02 75 6b 83 e3 01 74 57 [10552.656371][ C2] RSP: 0018:ffa0000000218ec8 EFLAGS: 00000046 [10552.656374][ C2] RAX: ffa000000002ec00 RBX: 0000000000000001 RCX: 0000000000000000 [10552.656376][ C2] RDX: 1fe2200000bf04a8 RSI: ff11000005f82000 RDI: ff11000005f82540 [10552.656377][ C2] RBP: dffffc0000000000 R08: ffffffffaa306030 R09: fffffbfff5b921ca [10552.656378][ C2] R10: 0000000000000002 R11: ffa0000000218ff8 R12: 0000000000000032 [10552.656379][ C2] R13: 0000000000000032 R14: ff11000002980400 R15: ff11000005e55580 [10552.656382][ C2] FS: 00007f81496ee740(0000) GS:ff11000086d76000(0000) knlGS:0000000000000000 [10552.656386][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10552.656387][ C2] CR2: 00007ffdd049adc8 CR3: 00000000108f0005 CR4: 0000000000771ef0 [10552.656388][ C2] PKRU: 55555554 [10552.656389][ C2] Call Trace: [10552.656393][ C2] [10552.656397][ C2] ? vm_del_vqs+0x290/0x290 [10552.656399][ C2] __handle_irq_event_percpu+0x187/0x3e0 [10552.656405][ C2] handle_irq_event+0xab/0x1c0 [10552.656407][ C2] handle_fasteoi_irq+0x2aa/0xa50 [10552.656410][ C2] __common_interrupt+0xae/0x270 [10552.656414][ C2] ? __sysvec_apic_timer_interrupt+0xe9/0x160 [10552.656417][ C2] common_interrupt+0xc4/0x100 [10552.656422][ C2] [10552.656423][ C2] [10552.656424][ C2] asm_common_interrupt+0x26/0x40 [10552.656427][ C2] RIP: 0010:queued_spin_lock_slowpath+0x460/0xa00 [10552.656431][ C2] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00 [10552.656432][ C2] RSP: 0018:ffa0000000617580 EFLAGS: 00000202 [10552.656433][ C2] RAX: 0000000000000001 RBX: ff11000012560b48 RCX: 0000000000000001 [10552.656434][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff11000012560b48 [10552.656435][ C2] RBP: 1ff40000000c2eb3 R08: ffffffffac5390f1 R09: ffe21c00024ac169 [10552.656436][ C2] R10: ffe21c00024ac16a R11: 0000000000000000 R12: 0000000000000003 [10552.656436][ C2] R13: ffe21c00024ac169 R14: 000000000000001c R15: ff11000012560b48 [10552.656438][ C2] ? queued_spin_lock_slowpath+0xb1/0xa00 [10552.656441][ C2] ? trace_hardirqs_on+0x36/0x40 [10552.656444][ C2] ? _raw_write_unlock_irqrestore+0x80/0x80 [10552.656447][ C2] ? __printk_cpu_sync_put+0x35/0x60 [10552.656450][ C2] do_raw_spin_lock+0x1d5/0x260 [10552.656453][ C2] ? __rwlock_init+0x150/0x150 [10552.656455][ C2] ? __mptcp_try_fallback+0xd8/0x280 [10552.656459][ C2] __mptcp_try_fallback+0xd8/0x280 [10552.656461][ C2] mptcp_sendmsg_frag+0x16c2/0x3050 [10552.656465][ C2] ? __mptcp_try_fallback+0x280/0x280 [10552.656466][ C2] ? __mptcp_retrans+0x352/0xaa0 [10552.656469][ C2] __mptcp_retrans+0x421/0xaa0 [10552.656471][ C2] ? mptcp_check_and_set_pending+0x1a0/0x1a0 [10552.656474][ C2] ? __lock_release.isra.0+0x59/0x170 [10552.656475][ C2] ? mark_held_locks+0x40/0x70 [10552.656477][ C2] mptcp_release_cb+0x5aa/0xa70 [10552.656480][ C2] ? sk_reset_timer+0x33/0x80 [10552.656484][ C2] ? __mptcp_push_pending+0x520/0x520 [10552.656486][ C2] ? lock_acquire.part.0+0xbc/0x260 [10552.656488][ C2] ? release_sock+0x21/0x1d0 [10552.656491][ C2] release_sock+0xab/0x1d0 [10552.656493][ C2] mptcp_sendmsg+0xd5b/0x1bc0 [10552.656496][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10552.656500][ C2] ? mptcp_stream_accept+0xce0/0xce0 [10552.656502][ C2] ? ovl_sync_status+0x190/0x190 [10552.656505][ C2] ? vfs_iter_write+0x3d8/0xa80 [10552.656509][ C2] ? find_held_lock+0x2b/0x80 [10552.656510][ C2] ? ovl_llseek+0x260/0x260 [10552.656512][ C2] sock_write_iter+0x281/0x4d0 [10552.656515][ C2] ? __up_write+0x1bf/0x520 [10552.656517][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10552.656520][ C2] ? ovl_open_realfile+0x370/0x370 [10552.656521][ C2] ? rcu_read_lock_any_held+0x41/0xa0 [10552.656524][ C2] ? validate_chain+0x287/0x5f0 [10552.656526][ C2] ? ____sys_recvmsg+0x6b0/0x6b0 [10552.656527][ C2] new_sync_write+0x3c5/0x6f0 [10552.656530][ C2] ? __lock_acquire+0x34c/0x740 [10552.656531][ C2] ? new_sync_read+0x6f0/0x6f0 [10552.656533][ C2] ? lock_acquire.part.0+0xbc/0x260 [10552.656535][ C2] ? find_held_lock+0x2b/0x80 [10552.656536][ C2] ? perf_trace_sched_switch+0x6d0/0x6d0 [10552.656539][ C2] vfs_write+0x65e/0xbb0 [10552.656541][ C2] ksys_write+0x17e/0x200 [10552.656543][ C2] ? __ia32_sys_read+0xc0/0xc0 [10552.656545][ C2] ? rcu_is_watching+0x15/0xd0 [10552.656547][ C2] do_syscall_64+0xbb/0xfd0 [10552.656550][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [10552.656552][ C2] RIP: 0033:0x7f814975fc5e [10552.656556][ C2] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [10552.656557][ C2] RSP: 002b:00007fffd25a6180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [10552.656559][ C2] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f814975fc5e [10552.656560][ C2] RDX: 0000000000001f9c RSI: 00007fffd25a8404 RDI: 0000000000000005 [10552.656560][ C2] RBP: 00007fffd25a6190 R08: 0000000000000000 R09: 0000000000000000 [10552.656561][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffd25a83a0 [10552.656562][ C2] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c [10552.656564][ C2] [10572.248626][ C2] rcu: INFO: rcu_preempt self-detected stall on CPU [10572.248947][ C2] rcu: 2-....: (9616311 ticks this GP) idle=7f7c/1/0x4000000000000000 softirq=525045/525047 fqs=3865397 [10572.249166][ C2] rcu: (t=9620476 jiffies g=521497 q=193024 ncpus=4) [10572.249295][ C2] CPU: 2 UID: 0 PID: 20861 Comm: mptcp_connect Tainted: G L 6.18.0-rc7-virtme #1 PREEMPT(full) [10572.249299][ C2] Tainted: [L]=SOFTLOCKUP [10572.249300][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [10572.249303][ C2] RIP: 0010:queued_spin_lock_slowpath+0x460/0xa00 [10572.249312][ C2] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00 [10572.249314][ C2] RSP: 0018:ffa0000000617580 EFLAGS: 00000202 [10572.249317][ C2] RAX: 0000000000000001 RBX: ff11000012560b48 RCX: 0000000000000001 [10572.249319][ C2] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff11000012560b48 [10572.249320][ C2] RBP: 1ff40000000c2eb3 R08: ffffffffac5390f1 R09: ffe21c00024ac169 [10572.249321][ C2] R10: ffe21c00024ac16a R11: 0000000000000000 R12: 0000000000000003 [10572.249322][ C2] R13: ffe21c00024ac169 R14: 000000000000001c R15: ff11000012560b48 [10572.249325][ C2] FS: 00007f81496ee740(0000) GS:ff11000086d76000(0000) knlGS:0000000000000000 [10572.249328][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10572.249329][ C2] CR2: 00007ffdd049adc8 CR3: 00000000108f0005 CR4: 0000000000771ef0 [10572.249330][ C2] PKRU: 55555554 [10572.249331][ C2] Call Trace: [10572.249332][ C2] [10572.249333][ C2] ? trace_hardirqs_on+0x36/0x40 [10572.249338][ C2] ? _raw_write_unlock_irqrestore+0x80/0x80 [10572.249341][ C2] ? __prin