| TITLE: INFO: task hung in corrupted |
| TYPE: HANG |
| CORRUPTED: Y |
| |
| [ 1528.243421][ T1040] INFO: task syz-executor.1:16255 blocked for more than 143 seconds. |
| [ 1528.251530][ T1040] Not tainted 5.1.0-rc2+ #145 |
| [ 1528.293299][ T1040] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 1528.302029][ T1040] syz-executor.1 D30032 16255 25626 0x00000004 |
| [ 1528.343661][ T1040] Call Trace: |
| [ 1528.347041][ T1040] __schedule+0x817/0x1cc0 |
| [ 1528.351476][ T1040] ? __sched_text_start+0x8/0x8 |
| [ 1528.368405][ T1040] ? rwsem_down_write_failed+0x764/0xc30 |
| [ 1528.374100][ T1040] ? _raw_spin_unlock_irq+0x28/0x90 |
| [ 1528.379320][ T1040] ? lockdep_hardirqs_on+0x418/0x5d0 |
| [ 1528.444673][ T1040] schedule+0x92/0x180 |
| [ 1528.448795][ T1040] rwsem_down_write_failed+0x774/0xc30 |
| [ 1528.460200][ T1040] ? pcpu_alloc+0x49a/0x12e0 |
| [ 1528.465042][ T1040] ? rwsem_down_read_failed+0x420/0x420 |
| [ 1528.470605][ T1040] ? mark_held_locks+0xf0/0xf0 |
| [ 1528.522754][ T1040] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 |
| [ 1528.528667][ T1040] ? __kasan_kmalloc.constprop.0+0xa3/0xe0 |
| [ 1528.556092][ T1040] ? kasan_check_write+0x14/0x20 |
| [ 1528.561082][ T1040] ? _raw_spin_unlock_irq+0x28/0x90 |
| [ 1528.596694][ T1040] ? get_signal+0x331/0x1d50 |
| [ 1528.601347][ T1040] ? _raw_spin_unlock_irq+0x28/0x90 |
| [ 1528.606635][ T1040] ? do_group_exit+0x135/0x370 |
| [ 1528.611421][ T1040] ? get_signal+0x399/0x1d50 |
| [ 1528.629945][ T1040] ? find_held_lock+0x35/0x130 |
| [ 1528.634838][ T1040] ? __fd_install+0x1bc/0x640 |
| [ 1528.663122][ T1040] ? do_signal+0x87/0x1940 |
| [ 1528.667653][ T1040] ? kasan_check_read+0x11/0x20 |
| [ 1528.672523][ T1040] ? setup_sigcontext+0x7d0/0x7d0 |
| [ 1528.699026][ T1040] ? __fd_install+0x200/0x640 |
| [ 1528.704712][ T1040] ? fd_install+0x4d/0x60 |
| [ 1528.710023][ T1040] ? exit_to_usermode_loop+0x43/0x2c0 |
| [ 1528.743543][ T1040] ? do_syscall_64+0x52d/0x610 |
| [ 1528.748358][ T1040] ? exit_to_usermode_loop+0x43/0x2c0 |
| [ 1528.775671][ T1040] ? lockdep_hardirqs_on+0x418/0x5d0 |
| [ 1528.781014][ T1040] ? trace_hardirqs_on+0x67/0x230 |
| [ 1528.807510][ T1040] ? exit_to_usermode_loop+0x244/0x2c0 |
| [ 1528.813031][ T1040] ? do_syscall_64+0x52d/0x610 |
| [ 1528.838653][ T1040] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe |
| [ 1528.851968][ T1040] |
| [ 1528.851968][ T1040] Showing all locks held in the system: |
| [ 1528.859759][ T1040] 5 locks held by ksoftirqd/0/9: |
| [ 1528.887515][ T1040] 1 lock held by khungtaskd/1040: |
| [ 1528.892568][ T1040] #0: 000000005ada4f73 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e |
| [ 1528.919659][ T1040] 1 lock held by rsyslogd/7655: |
| [ 1528.945939][ T1040] #0: 00000000b568feec (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 |
| [ 1528.960950][ T1040] 2 locks held by getty/7745: |
| [ 1528.977945][ T1040] #0: 00000000c9276939 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 |
| [ 1529.000692][ T1040] #1: 0000000087215bf6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 |
| [ 1529.040894][ T1040] 2 locks held by getty/7746: |
| [ 1529.045884][ T1040] #0: 000000004e485cd2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 |
| [ 1529.067971][ T1040] #1: 00000000cf426c42 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 |
| [ 1529.099853][ T1040] 2 locks held by getty/7747: |
| [ 1529.104656][ T1040] #0: 0000000098f27dcb (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 |
| [ 1529.113670][ T1040] #1: 000000006858ae28 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 |
| [ 1529.134723][ T1040] 2 locks held by getty/7748: |
| [ 1529.139426][ T1040] #0: 0000000034d49e2c (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 |
| [ 1529.173500][ T1040] #1: 000000009849c19f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 |
| [ 1529.183119][ T1040] 2 locks held by getty/7749: |
| [ 1529.222857][ T1040] #0: 000000009c42e2a3 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 |
| [ 1529.266466][ T1040] #1: 00000000e813d07c (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 |
| [ 1529.282348][ T1040] 2 locks held by getty/7750: |
| [ 1529.315017][ T1040] #0: 000000005ad08129 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 |
| [ 1529.354526][ T1040] #1: 000000008258667c (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 |
| [ 1529.378666][ T1040] 2 locks held by getty/7751: |
| [ 1529.383422][ T1040] #0: 00000000b7565bcd (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 |
| [ 1529.392381][ T1040] #1: 000000004fb98a7b (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 |
| [ 1529.423950][ T1040] 3 locks held by kworker/u4:5/7991: |
| [ 1529.429267][ T1040] #0: 00000000d0c7c4a3 ((wq_completion)netns){+.+.}, at: process_one_work+0x87e/0x1790 |
| [ 1529.447408][ T1040] #1: 00000000bc73b84c (net_cleanup_work){+.+.}, at: process_one_work+0x8b4/0x1790 |
| [ 1529.472163][ T1040] #2: 000000005132ec00 (rcu_state.barrier_mutex){+.+.}, at: rcu_barrier+0x30/0x270 |
| [ 1529.521195][ T1040] |
| [ 1529.529867][ T1040] ============================================= |
| [ 1529.529867][ T1040] |
| [ 1529.558744][ T1040] NMI backtrace for cpu 0 |
| [ 1529.563104][ T1040] CPU: 0 PID: 1040 Comm: khungtaskd Not tainted 5.1.0-rc2+ #145 |
| [ 1529.570738][ T1040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 1529.580794][ T1040] Call Trace: |
| [ 1529.584099][ T1040] dump_stack+0x172/0x1f0 |
| [ 1529.588453][ T1040] nmi_cpu_backtrace.cold+0x63/0xa4 |
| [ 1529.593743][ T1040] ? lapic_can_unplug_cpu.cold+0x38/0x38 |
| [ 1529.599563][ T1040] nmi_trigger_cpumask_backtrace+0x1be/0x236 |
| [ 1529.605575][ T1040] arch_trigger_cpumask_backtrace+0x14/0x20 |
| [ 1529.611482][ T1040] watchdog+0x9b7/0xec0 |
| [ 1529.615653][ T1040] kthread+0x357/0x430 |
| [ 1529.619732][ T1040] ? reset_hung_task_detector+0x30/0x30 |
| [ 1529.625285][ T1040] ? kthread_cancel_delayed_work_sync+0x20/0x20 |
| [ 1529.631551][ T1040] ret_from_fork+0x3a/0x50 |
| [ 1529.636063][ T1040] Sending NMI from CPU 0 to CPUs 1: |
| [ 1529.642216][ C1] NMI backtrace for cpu 1 |
| [ 1529.642222][ C1] CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.1.0-rc2+ #145 |
| [ 1529.642229][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 1529.642233][ C1] RIP: 0010:unwind_next_frame.part.0+0xf1/0xa20 |
| [ 1529.642245][ C1] Code: 4c 89 da 48 c1 ea 03 80 3c 02 00 0f 85 2c 05 00 00 4c 8d 53 28 4c 8b 73 38 48 b8 00 00 00 00 00 fc ff df 4c 89 d2 48 c1 ea 03 <80> 3c 02 00 0f 85 7c 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b |
| [ 1529.642249][ C1] RSP: 0018:ffff8880aa2c7498 EFLAGS: 00000802 |
| [ 1529.642257][ C1] RAX: dffffc0000000000 RBX: ffff8880aa2c75a8 RCX: ffff8880aa2c7520 |
| [ 1529.642263][ C1] RDX: 1ffff11015458eba RSI: 0000000000000000 RDI: ffff8880aa2c75a8 |
| [ 1529.642268][ C1] RBP: ffff8880aa2c7548 R08: ffff8880aa2c75d0 R09: ffff8880aa2c7600 |
| [ 1529.642273][ C1] R10: ffff8880aa2c75d0 R11: ffff8880aa2c75e0 R12: 1ffff11015458e98 |
| [ 1529.642279][ C1] R13: 0000000000000000 R14: ffff8880aa2c7598 R15: ffff8880aa2c75a8 |
| [ 1529.642284][ C1] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 |
| [ 1529.642289][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 |
| [ 1529.642294][ C1] CR2: ffffffffff600400 CR3: 000000008f6d3000 CR4: 00000000001406e0 |
| [ 1529.642297][ C1] Call Trace: |
| [ 1529.642301][ C1] ? unwind_dump+0x100/0x100 |
| [ 1529.642315][ C1] ? find_held_lock+0x35/0x130 |
| [ 1529.642319][ C1] ? ip6_pol_route+0x39c/0x1040 |
| [ 1529.642322][ C1] __unwind_start+0x1f6/0x3d0 |
| [ 1529.642326][ C1] ? ip6_mc_input+0x9ee/0xf30 |
| [ 1529.642330][ C1] __save_stack_trace+0x5c/0x100 |
| [ 1529.642334][ C1] ? __save_stack_trace+0x5c/0x100 |
| [ 1529.642337][ C1] save_stack_trace+0x1a/0x20 |
| [ 1529.642341][ C1] save_stack+0x45/0xd0 |
| [ 1529.642345][ C1] ? rt6_multipath_hash+0x1ba/0xe40 |
| [ 1529.642349][ C1] ? debug_check_no_obj_freed+0x200/0x464 |
| [ 1529.642353][ C1] ? find_held_lock+0x35/0x130 |
| [ 1529.642357][ C1] ? debug_check_no_obj_freed+0x200/0x464 |
| [ 1529.642360][ C1] ? kasan_check_write+0x14/0x20 |
| [ 1529.642364][ C1] ? lock_downgrade+0x880/0x880 |
| [ 1529.642368][ C1] ? trace_hardirqs_off+0x62/0x220 |
| [ 1529.642371][ C1] ? kasan_check_read+0x11/0x20 |
| [ 1529.642376][ C1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 |
| [ 1529.642380][ C1] ? debug_check_no_obj_freed+0x200/0x464 |
| [ 1529.642384][ C1] ? __local_bh_enable_ip+0x15a/0x270 |
| [ 1529.642388][ C1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 |
| [ 1529.642392][ C1] ? __phys_addr+0xa4/0x120 |
| [ 1529.642396][ C1] ? kfree_skbmem+0xc5/0x150 |
| [ 1529.642400][ C1] __kasan_slab_free+0x102/0x150 |
| [ 1529.642403][ C1] ? kfree_skbmem+0xc5/0x150 |
| [ 1529.642407][ C1] kasan_slab_free+0xe/0x10 |
| [ 1529.642410][ C1] kmem_cache_free+0x86/0x260 |
| [ 1529.642414][ C1] kfree_skbmem+0xc5/0x150 |
| [ 1529.642417][ C1] kfree_skb+0xf0/0x390 |
| [ 1529.642421][ C1] ip6_mc_input+0x9ee/0xf30 |
| [ 1529.642425][ C1] ? ip6_input+0x3f0/0x3f0 |
| [ 1529.642428][ C1] ip6_rcv_finish+0x1e7/0x320 |
| [ 1529.642432][ C1] ipv6_rcv+0x10e/0x420 |
| [ 1529.642436][ C1] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 |
| [ 1529.642440][ C1] ? ip6_rcv_finish_core.isra.0+0x590/0x590 |
| [ 1529.642444][ C1] ? mark_held_locks+0xf0/0xf0 |
| [ 1529.642448][ C1] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 |
| [ 1529.642452][ C1] __netif_receive_skb_one_core+0x115/0x1a0 |
| [ 1529.642456][ C1] ? __netif_receive_skb_core+0x3040/0x3040 |
| [ 1529.642460][ C1] ? lock_acquire+0x16f/0x3f0 |
| [ 1529.642465][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 |
| [ 1529.642468][ C1] __netif_receive_skb+0x2c/0x1c0 |
| [ 1529.642472][ C1] process_backlog+0x206/0x750 |
| [ 1529.642476][ C1] ? net_rx_action+0x27b/0x1070 |
| [ 1529.642480][ C1] ? lockdep_hardirqs_on+0x19e/0x5d0 |
| [ 1529.642483][ C1] net_rx_action+0x4fa/0x1070 |
| [ 1529.642487][ C1] ? napi_complete_done+0x4b0/0x4b0 |
| [ 1529.642491][ C1] ? sched_clock+0x2e/0x50 |
| [ 1529.642495][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 |
| [ 1529.642499][ C1] __do_softirq+0x266/0x95a |
| [ 1529.642503][ C1] ? takeover_tasklets+0x7b0/0x7b0 |
| [ 1529.642506][ C1] run_ksoftirqd+0x8e/0x110 |
| [ 1529.642510][ C1] smpboot_thread_fn+0x6ab/0xa10 |
| [ 1529.642514][ C1] ? sort_range+0x30/0x30 |
| [ 1529.642518][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 |
| [ 1529.642522][ C1] ? __kthread_parkme+0xfb/0x1b0 |
| [ 1529.642526][ C1] kthread+0x357/0x430 |
| [ 1529.642529][ C1] ? sort_range+0x30/0x30 |
| [ 1529.642534][ C1] ? kthread_cancel_delayed_work_sync+0x20/0x20 |
| [ 1529.642537][ C1] ret_from_fork+0x3a/0x50 |
| [ 1529.767317][ T1040] Kernel panic - not syncing: hung_task: blocked tasks |
| [ 1530.069534][ T1040] CPU: 0 PID: 1040 Comm: khungtaskd Not tainted 5.1.0-rc2+ #145 |
| [ 1530.077164][ T1040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 1530.087315][ T1040] Call Trace: |
| [ 1530.090619][ T1040] dump_stack+0x172/0x1f0 |
| [ 1530.095018][ T1040] panic+0x2cb/0x65c |
| [ 1530.098927][ T1040] ? __warn_printk+0xf3/0xf3 |
| [ 1530.103525][ T1040] ? lapic_can_unplug_cpu.cold+0x38/0x38 |
| [ 1530.109174][ T1040] ? ___preempt_schedule+0x16/0x18 |
| [ 1530.114318][ T1040] ? nmi_trigger_cpumask_backtrace+0x19e/0x236 |
| [ 1530.120492][ T1040] ? nmi_trigger_cpumask_backtrace+0x1fa/0x236 |
| [ 1530.126655][ T1040] ? nmi_trigger_cpumask_backtrace+0x204/0x236 |
| [ 1530.132818][ T1040] ? nmi_trigger_cpumask_backtrace+0x19e/0x236 |
| [ 1530.138987][ T1040] watchdog+0x9c8/0xec0 |
| [ 1530.143174][ T1040] kthread+0x357/0x430 |
| [ 1530.147253][ T1040] ? reset_hung_task_detector+0x30/0x30 |
| [ 1530.152804][ T1040] ? kthread_cancel_delayed_work_sync+0x20/0x20 |
| [ 1530.159471][ T1040] ret_from_fork+0x3a/0x50 |
| [ 1530.164973][ T1040] Kernel Offset: disabled |
| [ 1530.169298][ T1040] Rebooting in 86400 seconds.. |
