Warning: Permanently added '10.128.0.160' (ED25519) to the list of known hosts. executing program [ 51.314674][ T3487] [ 51.317032][ T3487] ===================================================== [ 51.323968][ T3487] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 51.331455][ T3487] 5.15.126-syzkaller #0 Not tainted [ 51.336776][ T3487] ----------------------------------------------------- [ 51.343692][ T3487] syz-executor496/3487 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 51.351745][ T3487] ffffffff8c9dfba0 (fs_reclaim){+.+.}-{0:0}, at: slab_pre_alloc_hook+0x22/0xc0 [ 51.360711][ T3487] [ 51.360711][ T3487] and this task is already holding: [ 51.368061][ T3487] ffffffff8da20808 (noop_qdisc.q.lock){+.-.}-{2:2}, at: netem_change+0x257/0x20c0 [ 51.377273][ T3487] which would create a new lock dependency: [ 51.383147][ T3487] (noop_qdisc.q.lock){+.-.}-{2:2} -> (fs_reclaim){+.+.}-{0:0} [ 51.390712][ T3487] [ 51.390712][ T3487] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 51.400156][ T3487] (noop_qdisc.q.lock){+.-.}-{2:2} [ 51.400181][ T3487] [ 51.400181][ T3487] ... which became SOFTIRQ-irq-safe at: [ 51.412960][ T3487] lock_acquire+0x1db/0x4f0 [ 51.417541][ T3487] _raw_spin_lock+0x2a/0x40 [ 51.422130][ T3487] net_tx_action+0x6c5/0x8e0 [ 51.426898][ T3487] __do_softirq+0x3b3/0x93a [ 51.431485][ T3487] do_softirq+0x162/0x240 [ 51.435897][ T3487] __local_bh_enable_ip+0x1b1/0x1f0 [ 51.441168][ T3487] dev_deactivate_many+0x524/0xbf0 [ 51.446355][ T3487] dev_deactivate+0x177/0x270 [ 51.451108][ T3487] linkwatch_do_dev+0x104/0x160 [ 51.456033][ T3487] __linkwatch_run_queue+0x4ca/0x7f0 [ 51.461391][ T3487] linkwatch_event+0x48/0x50 [ 51.466141][ T3487] process_one_work+0x8a1/0x10c0 [ 51.471151][ T3487] worker_thread+0xaca/0x1280 [ 51.475901][ T3487] kthread+0x3f6/0x4f0 [ 51.480042][ T3487] ret_from_fork+0x1f/0x30 [ 51.484539][ T3487] [ 51.484539][ T3487] to a SOFTIRQ-irq-unsafe lock: [ 51.491537][ T3487] (fs_reclaim){+.+.}-{0:0} [ 51.491558][ T3487] [ 51.491558][ T3487] ... which became SOFTIRQ-irq-unsafe at: [ 51.503911][ T3487] ... [ 51.503917][ T3487] lock_acquire+0x1db/0x4f0 [ 51.511088][ T3487] fs_reclaim_acquire+0x83/0x120 [ 51.516109][ T3487] slab_pre_alloc_hook+0x22/0xc0 [ 51.521132][ T3487] kmem_cache_alloc_trace+0x49/0x290 [ 51.526499][ T3487] wq_numa_init+0x122/0x49f [ 51.531080][ T3487] workqueue_init+0x18/0x5e1 [ 51.535752][ T3487] kernel_init_freeable+0x40a/0x5c5 [ 51.541029][ T3487] kernel_init+0x19/0x290 [ 51.545520][ T3487] ret_from_fork+0x1f/0x30 [ 51.550025][ T3487] [ 51.550025][ T3487] other info that might help us debug this: [ 51.550025][ T3487] [ 51.560247][ T3487] Possible interrupt unsafe locking scenario: [ 51.560247][ T3487] [ 51.568551][ T3487] CPU0 CPU1 [ 51.574026][ T3487] ---- ---- [ 51.579393][ T3487] lock(fs_reclaim); [ 51.583366][ T3487] local_irq_disable(); [ 51.590350][ T3487] lock(noop_qdisc.q.lock); [ 51.597648][ T3487] lock(fs_reclaim); [ 51.604144][ T3487] [ 51.607594][ T3487] lock(noop_qdisc.q.lock); [ 51.612354][ T3487] [ 51.612354][ T3487] *** DEADLOCK *** [ 51.612354][ T3487] [ 51.620497][ T3487] 2 locks held by syz-executor496/3487: [ 51.626053][ T3487] #0: ffffffff8d9e1148 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x94c/0xee0 [ 51.635478][ T3487] #1: ffffffff8da20808 (noop_qdisc.q.lock){+.-.}-{2:2}, at: netem_change+0x257/0x20c0 [ 51.645313][ T3487] [ 51.645313][ T3487] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 51.655702][ T3487] -> (noop_qdisc.q.lock){+.-.}-{2:2} { [ 51.661163][ T3487] HARDIRQ-ON-W at: [ 51.665480][ T3487] lock_acquire+0x1db/0x4f0 [ 51.671624][ T3487] _raw_spin_lock+0x2a/0x40 [ 51.677864][ T3487] __dev_queue_xmit+0xad6/0x3230 [ 51.684467][ T3487] tx+0x64/0x100 [ 51.689663][ T3487] kthread+0x234/0x440 [ 51.695417][ T3487] kthread+0x3f6/0x4f0 [ 51.701120][ T3487] ret_from_fork+0x1f/0x30 [ 51.707171][ T3487] IN-SOFTIRQ-W at: [ 51.711136][ T3487] lock_acquire+0x1db/0x4f0 [ 51.717275][ T3487] _raw_spin_lock+0x2a/0x40 [ 51.723423][ T3487] net_tx_action+0x6c5/0x8e0 [ 51.729652][ T3487] __do_softirq+0x3b3/0x93a [ 51.735880][ T3487] do_softirq+0x162/0x240 [ 51.741847][ T3487] __local_bh_enable_ip+0x1b1/0x1f0 [ 51.748679][ T3487] dev_deactivate_many+0x524/0xbf0 [ 51.755428][ T3487] dev_deactivate+0x177/0x270 [ 51.761741][ T3487] linkwatch_do_dev+0x104/0x160 [ 51.768229][ T3487] __linkwatch_run_queue+0x4ca/0x7f0 [ 51.775157][ T3487] linkwatch_event+0x48/0x50 [ 51.781383][ T3487] process_one_work+0x8a1/0x10c0 [ 51.788060][ T3487] worker_thread+0xaca/0x1280 [ 51.794416][ T3487] kthread+0x3f6/0x4f0 [ 51.800127][ T3487] ret_from_fork+0x1f/0x30 [ 51.806191][ T3487] INITIAL USE at: [ 51.810074][ T3487] lock_acquire+0x1db/0x4f0 [ 51.816131][ T3487] _raw_spin_lock+0x2a/0x40 [ 51.822211][ T3487] __dev_queue_xmit+0xad6/0x3230 [ 51.828793][ T3487] tx+0x64/0x100 [ 51.833914][ T3487] kthread+0x234/0x440 [ 51.839533][ T3487] kthread+0x3f6/0x4f0 [ 51.845153][ T3487] ret_from_fork+0x1f/0x30 [ 51.851121][ T3487] } [ 51.853603][ T3487] ... key at: [] noop_qdisc+0x108/0x320 [ 51.861236][ T3487] [ 51.861236][ T3487] the dependencies between the lock to be acquired [ 51.861243][ T3487] and SOFTIRQ-irq-unsafe lock: [ 51.874755][ T3487] -> (fs_reclaim){+.+.}-{0:0} { [ 51.879605][ T3487] HARDIRQ-ON-W at: [ 51.883567][ T3487] lock_acquire+0x1db/0x4f0 [ 51.889719][ T3487] fs_reclaim_acquire+0x83/0x120 [ 51.896322][ T3487] slab_pre_alloc_hook+0x22/0xc0 [ 51.902915][ T3487] kmem_cache_alloc_trace+0x49/0x290 [ 51.909934][ T3487] wq_numa_init+0x122/0x49f [ 51.916084][ T3487] workqueue_init+0x18/0x5e1 [ 51.922399][ T3487] kernel_init_freeable+0x40a/0x5c5 [ 51.929262][ T3487] kernel_init+0x19/0x290 [ 51.935246][ T3487] ret_from_fork+0x1f/0x30 [ 51.941303][ T3487] SOFTIRQ-ON-W at: [ 51.945358][ T3487] lock_acquire+0x1db/0x4f0 [ 51.951500][ T3487] fs_reclaim_acquire+0x83/0x120 [ 51.958080][ T3487] slab_pre_alloc_hook+0x22/0xc0 [ 51.964655][ T3487] kmem_cache_alloc_trace+0x49/0x290 [ 51.971697][ T3487] wq_numa_init+0x122/0x49f [ 51.977846][ T3487] workqueue_init+0x18/0x5e1 [ 51.984080][ T3487] kernel_init_freeable+0x40a/0x5c5 [ 51.990924][ T3487] kernel_init+0x19/0x290 [ 51.996895][ T3487] ret_from_fork+0x1f/0x30 [ 52.003041][ T3487] INITIAL USE at: [ 52.007019][ T3487] lock_acquire+0x1db/0x4f0 [ 52.013091][ T3487] fs_reclaim_acquire+0x83/0x120 [ 52.019606][ T3487] slab_pre_alloc_hook+0x22/0xc0 [ 52.026114][ T3487] kmem_cache_alloc_trace+0x49/0x290 [ 52.032963][ T3487] wq_numa_init+0x122/0x49f [ 52.039053][ T3487] workqueue_init+0x18/0x5e1 [ 52.045205][ T3487] kernel_init_freeable+0x40a/0x5c5 [ 52.051960][ T3487] kernel_init+0x19/0x290 [ 52.057973][ T3487] ret_from_fork+0x1f/0x30 [ 52.064308][ T3487] } [ 52.066797][ T3487] ... key at: [] __fs_reclaim_map+0x0/0x160 [ 52.074887][ T3487] ... acquired at: [ 52.078678][ T3487] lock_acquire+0x1db/0x4f0 [ 52.083385][ T3487] fs_reclaim_acquire+0x83/0x120 [ 52.088497][ T3487] slab_pre_alloc_hook+0x22/0xc0 [ 52.093602][ T3487] __kmalloc_node+0x71/0x390 [ 52.098360][ T3487] kvmalloc_node+0x80/0x140 [ 52.103116][ T3487] get_dist_table+0x83/0x2c0 [ 52.107882][ T3487] netem_change+0xa6a/0x20c0 [ 52.112632][ T3487] netem_init+0x58/0xb0 [ 52.116947][ T3487] qdisc_create+0x8ae/0x1390 [ 52.121696][ T3487] tc_modify_qdisc+0xac5/0x1710 [ 52.126708][ T3487] rtnetlink_rcv_msg+0x993/0xee0 [ 52.131805][ T3487] netlink_rcv_skb+0x1cf/0x410 [ 52.136735][ T3487] netlink_unicast+0x7b6/0x980 [ 52.141657][ T3487] netlink_sendmsg+0xa30/0xd60 [ 52.146582][ T3487] ____sys_sendmsg+0x59e/0x8f0 [ 52.151505][ T3487] ___sys_sendmsg+0x252/0x2e0 [ 52.156337][ T3487] __se_sys_sendmsg+0x19a/0x260 [ 52.161346][ T3487] do_syscall_64+0x3d/0xb0 [ 52.165925][ T3487] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 52.171983][ T3487] [ 52.174289][ T3487] [ 52.174289][ T3487] stack backtrace: [ 52.180159][ T3487] CPU: 0 PID: 3487 Comm: syz-executor496 Not tainted 5.15.126-syzkaller #0 [ 52.188730][ T3487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 52.198769][ T3487] Call Trace: [ 52.202046][ T3487] [ 52.204967][ T3487] dump_stack_lvl+0x1e3/0x2cb [ 52.209636][ T3487] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 52.215258][ T3487] ? panic+0x84d/0x84d [ 52.219348][ T3487] ? print_shortest_lock_dependencies+0xee/0x150 [ 52.225675][ T3487] validate_chain+0x4cfe/0x58b0 [ 52.230521][ T3487] ? reacquire_held_locks+0x660/0x660 [ 52.235899][ T3487] ? validate_chain+0x112/0x58b0 [ 52.240848][ T3487] ? reacquire_held_locks+0x660/0x660 [ 52.246207][ T3487] ? mark_lock+0x98/0x340 [ 52.250522][ T3487] __lock_acquire+0x1295/0x1ff0 [ 52.255368][ T3487] lock_acquire+0x1db/0x4f0 [ 52.259861][ T3487] ? slab_pre_alloc_hook+0x22/0xc0 [ 52.264960][ T3487] ? read_lock_is_recursive+0x10/0x10 [ 52.270329][ T3487] fs_reclaim_acquire+0x83/0x120 [ 52.275254][ T3487] ? slab_pre_alloc_hook+0x22/0xc0 [ 52.280399][ T3487] slab_pre_alloc_hook+0x22/0xc0 [ 52.285326][ T3487] __kmalloc_node+0x71/0x390 [ 52.289903][ T3487] ? kvmalloc_node+0x80/0x140 [ 52.294652][ T3487] ? __bpf_trace_softirq+0x10/0x10 [ 52.299751][ T3487] kvmalloc_node+0x80/0x140 [ 52.304243][ T3487] get_dist_table+0x83/0x2c0 [ 52.308912][ T3487] netem_change+0xa6a/0x20c0 [ 52.313495][ T3487] ? netem_destroy+0xb0/0xb0 [ 52.318072][ T3487] ? debug_object_init+0x10/0x10 [ 52.322996][ T3487] ? memset+0x1f/0x40 [ 52.327050][ T3487] ? lockdep_init_map_type+0x9d/0x8d0 [ 52.332413][ T3487] ? memset+0x1f/0x40 [ 52.336379][ T3487] ? __hrtimer_init+0x181/0x260 [ 52.341221][ T3487] netem_init+0x58/0xb0 [ 52.345363][ T3487] ? qdisc_peek_dequeued+0x220/0x220 [ 52.350635][ T3487] qdisc_create+0x8ae/0x1390 [ 52.355215][ T3487] ? qdisc_notify+0x380/0x380 [ 52.359881][ T3487] ? apparmor_capable+0x12e/0x190 [ 52.364898][ T3487] tc_modify_qdisc+0xac5/0x1710 [ 52.369744][ T3487] ? rcu_lock_release+0x20/0x20 [ 52.374587][ T3487] ? rcu_lock_release+0x20/0x20 [ 52.379428][ T3487] rtnetlink_rcv_msg+0x993/0xee0 [ 52.384362][ T3487] ? reacquire_held_locks+0x660/0x660 [ 52.389737][ T3487] ? rtnetlink_bind+0x80/0x80 [ 52.394397][ T3487] ? is_bpf_text_address+0x24f/0x260 [ 52.399668][ T3487] ? stack_trace_save+0x1c0/0x1c0 [ 52.404679][ T3487] ? __kernel_text_address+0x94/0x100 [ 52.410037][ T3487] ? unwind_get_return_address+0x49/0x80 [ 52.415658][ T3487] ? arch_stack_walk+0xf3/0x140 [ 52.420504][ T3487] ? mark_lock+0x98/0x340 [ 52.424833][ T3487] ? mark_lock+0x98/0x340 [ 52.429156][ T3487] ? __lock_acquire+0x1295/0x1ff0 [ 52.434193][ T3487] netlink_rcv_skb+0x1cf/0x410 [ 52.439084][ T3487] ? rtnetlink_bind+0x80/0x80 [ 52.443886][ T3487] ? netlink_ack+0xb10/0xb10 [ 52.448470][ T3487] netlink_unicast+0x7b6/0x980 [ 52.453226][ T3487] ? netlink_detachskb+0x90/0x90 [ 52.458152][ T3487] ? 0xffffffff81000000 [ 52.462291][ T3487] ? __check_object_size+0x300/0x410 [ 52.467567][ T3487] ? bpf_lsm_netlink_send+0x5/0x10 [ 52.472671][ T3487] netlink_sendmsg+0xa30/0xd60 [ 52.477434][ T3487] ? netlink_getsockopt+0x5b0/0x5b0 [ 52.482628][ T3487] ? aa_sock_msg_perm+0x91/0x150 [ 52.487552][ T3487] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 52.492826][ T3487] ? security_socket_sendmsg+0x7d/0xa0 [ 52.498281][ T3487] ? netlink_getsockopt+0x5b0/0x5b0 [ 52.503481][ T3487] ____sys_sendmsg+0x59e/0x8f0 [ 52.508233][ T3487] ? iovec_from_user+0x300/0x390 [ 52.513163][ T3487] ? __sys_sendmsg_sock+0x30/0x30 [ 52.518196][ T3487] ___sys_sendmsg+0x252/0x2e0 [ 52.523386][ T3487] ? __sys_sendmsg+0x260/0x260 [ 52.528487][ T3487] ? __lock_acquire+0x1295/0x1ff0 [ 52.533514][ T3487] ? __context_tracking_enter+0x5f/0x90 [ 52.539065][ T3487] ? __context_tracking_exit+0x4c/0x80 [ 52.544515][ T3487] ? __fdget+0x158/0x220 [ 52.548749][ T3487] __se_sys_sendmsg+0x19a/0x260 [ 52.553590][ T3487] ? __x64_sys_sendmsg+0x80/0x80 [ 52.558603][ T3487] ? syscall_enter_from_user_mode+0x2e/0x230 [ 52.564572][ T3487] ? lockdep_hardirqs_on+0x94/0x130 [ 52.569755][ T3487] ? syscall_enter_from_user_mode+0x2e/0x230 [ 52.575725][ T3487] do_syscall_64+0x3d/0xb0 [ 52.580135][ T3487] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 52.586023][ T3487] RIP: 0033:0x7f0bb55f04e9 [ 52.590428][ T3487] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 52.610020][ T3487] RSP: 002b:00007ffedcc32458 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 52.618424][ T3487] RAX: ffffffffffffffda RBX: 00007ffedcc32628 RCX: 00007f0bb55f04e9 [ 52.626542][ T3487] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003 [ 52.634512][ T3487] RBP: 00007f0bb5663610 R08: 00000000ffffffff R09: 00007ffedcc32628 [ 52.642523][ T3487] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000001 [ 52.650494][ T3487] R13: 00007ffedcc32618 R14: 0000000000000001 R15: 0000000000000001 [ 52.658582][ T3487] [ 52.661705][ T3487] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:209 [ 52.671319][ T3487] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3487, name: syz-executor496 [ 52.680828][ T3487] INFO: lockdep is turned off. [ 52.685618][ T3487] Preemption disabled at: [ 52.685627][ T3487] [<0000000000000000>] 0x0 [ 52.694875][ T3487] CPU: 0 PID: 3487 Comm: syz-executor496 Not tainted 5.15.126-syzkaller #0 [ 52.703466][ T3487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 52.713511][ T3487] Call Trace: [ 52.716784][ T3487] [ 52.719704][ T3487] dump_stack_lvl+0x1e3/0x2cb [ 52.724374][ T3487] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 52.729997][ T3487] ? panic+0x84d/0x84d [ 52.734060][ T3487] ? rcu_is_watching+0x11/0xa0 [ 52.738812][ T3487] ? rcu_is_watching+0x11/0xa0 [ 52.743566][ T3487] ___might_sleep+0x547/0x6a0 [ 52.748232][ T3487] ? __might_sleep+0xc0/0xc0 [ 52.752920][ T3487] slab_pre_alloc_hook+0x44/0xc0 [ 52.758026][ T3487] __kmalloc_node+0x71/0x390 [ 52.762601][ T3487] ? kvmalloc_node+0x80/0x140 [ 52.767281][ T3487] ? __bpf_trace_softirq+0x10/0x10 [ 52.772383][ T3487] kvmalloc_node+0x80/0x140 [ 52.776871][ T3487] get_dist_table+0x83/0x2c0 [ 52.781447][ T3487] netem_change+0xa6a/0x20c0 [ 52.786030][ T3487] ? netem_destroy+0xb0/0xb0 [ 52.790606][ T3487] ? debug_object_init+0x10/0x10 [ 52.795528][ T3487] ? memset+0x1f/0x40 [ 52.799496][ T3487] ? lockdep_init_map_type+0x9d/0x8d0 [ 52.804864][ T3487] ? memset+0x1f/0x40 [ 52.808841][ T3487] ? __hrtimer_init+0x181/0x260 [ 52.813681][ T3487] netem_init+0x58/0xb0 [ 52.817833][ T3487] ? qdisc_peek_dequeued+0x220/0x220 [ 52.823123][ T3487] qdisc_create+0x8ae/0x1390 [ 52.827707][ T3487] ? qdisc_notify+0x380/0x380 [ 52.832410][ T3487] ? apparmor_capable+0x12e/0x190 [ 52.837443][ T3487] tc_modify_qdisc+0xac5/0x1710 [ 52.842296][ T3487] ? rcu_lock_release+0x20/0x20 [ 52.847146][ T3487] ? rcu_lock_release+0x20/0x20 [ 52.851991][ T3487] rtnetlink_rcv_msg+0x993/0xee0 [ 52.856924][ T3487] ? reacquire_held_locks+0x660/0x660 [ 52.862284][ T3487] ? rtnetlink_bind+0x80/0x80 [ 52.866956][ T3487] ? is_bpf_text_address+0x24f/0x260 [ 52.872339][ T3487] ? stack_trace_save+0x1c0/0x1c0 [ 52.877456][ T3487] ? __kernel_text_address+0x94/0x100 [ 52.882868][ T3487] ? unwind_get_return_address+0x49/0x80 [ 52.888623][ T3487] ? arch_stack_walk+0xf3/0x140 [ 52.893481][ T3487] ? mark_lock+0x98/0x340 [ 52.897834][ T3487] ? mark_lock+0x98/0x340 [ 52.902250][ T3487] ? __lock_acquire+0x1295/0x1ff0 [ 52.907358][ T3487] netlink_rcv_skb+0x1cf/0x410 [ 52.912134][ T3487] ? rtnetlink_bind+0x80/0x80 [ 52.916809][ T3487] ? netlink_ack+0xb10/0xb10 [ 52.921399][ T3487] netlink_unicast+0x7b6/0x980 [ 52.926187][ T3487] ? netlink_detachskb+0x90/0x90 [ 52.931347][ T3487] ? 0xffffffff81000000 [ 52.935489][ T3487] ? __check_object_size+0x300/0x410 [ 52.940861][ T3487] ? bpf_lsm_netlink_send+0x5/0x10 [ 52.945993][ T3487] netlink_sendmsg+0xa30/0xd60 [ 52.950767][ T3487] ? netlink_getsockopt+0x5b0/0x5b0 [ 52.955961][ T3487] ? aa_sock_msg_perm+0x91/0x150 [ 52.960892][ T3487] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 52.966168][ T3487] ? security_socket_sendmsg+0x7d/0xa0 [ 52.971614][ T3487] ? netlink_getsockopt+0x5b0/0x5b0 [ 52.976804][ T3487] ____sys_sendmsg+0x59e/0x8f0 [ 52.981592][ T3487] ? iovec_from_user+0x300/0x390 [ 52.986529][ T3487] ? __sys_sendmsg_sock+0x30/0x30 [ 52.991550][ T3487] ___sys_sendmsg+0x252/0x2e0 [ 52.996226][ T3487] ? __sys_sendmsg+0x260/0x260 [ 53.000984][ T3487] ? __lock_acquire+0x1295/0x1ff0 [ 53.006013][ T3487] ? __context_tracking_enter+0x5f/0x90 [ 53.011553][ T3487] ? __context_tracking_exit+0x4c/0x80 [ 53.017000][ T3487] ? __fdget+0x158/0x220 [ 53.021232][ T3487] __se_sys_sendmsg+0x19a/0x260 [ 53.026071][ T3487] ? __x64_sys_sendmsg+0x80/0x80 [ 53.031002][ T3487] ? syscall_enter_from_user_mode+0x2e/0x230 [ 53.036968][ T3487] ? lockdep_hardirqs_on+0x94/0x130 [ 53.042155][ T3487] ? syscall_enter_from_user_mode+0x2e/0x230 [ 53.048120][ T3487] do_syscall_64+0x3d/0xb0 [ 53.052525][ T3487] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 53.058407][ T3487] RIP: 0033:0x7f0bb55f04e9 [ 53.062812][ T3487] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 53.082407][ T3487] RSP: 002b:00007ffedcc32458 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 53.090807][ T3487] RAX: ffffffffffffffda RBX: 00007ffedcc32628 RCX: 00007f0bb55f04e9 [ 53.098793][ T3487] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003 [ 53.106754][ T3487] RBP: 00007f0bb5663610 R08: 00000000ffffffff R09: 00007ffedcc32628 [ 53.114715][ T3487] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000001 [ 53.122821][ T3487] R13: 00007ffedcc32618 R14: 0000000000000001 R15: 0000000000000001 [ 53.130830][ T3487]