[ 67.960956][ T26] audit: type=1800 audit(1565694072.642:27): pid=9751 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 67.981561][ T26] audit: type=1800 audit(1565694072.642:28): pid=9751 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 68.731167][ T26] audit: type=1800 audit(1565694073.492:29): pid=9751 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 68.752314][ T26] audit: type=1800 audit(1565694073.492:30): pid=9751 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.25' (ECDSA) to the list of known hosts. 2019/08/13 11:16:29 parsed 1 programs 2019/08/13 11:16:30 executed programs: 0 syzkaller login: [ 986.228294][ T9919] IPVS: ftp: loaded support on port[0] = 21 [ 986.274859][ T9919] chnl_net:caif_netlink_parms(): no params data found [ 986.297509][ T9919] bridge0: port 1(bridge_slave_0) entered blocking state [ 986.304674][ T9919] bridge0: port 1(bridge_slave_0) entered disabled state [ 986.312393][ T9919] device bridge_slave_0 entered promiscuous mode [ 986.320377][ T9919] bridge0: port 2(bridge_slave_1) entered blocking state [ 986.327499][ T9919] bridge0: port 2(bridge_slave_1) entered disabled state [ 986.335025][ T9919] device bridge_slave_1 entered promiscuous mode [ 986.349561][ T9919] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 986.359816][ T9919] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 986.375292][ T9919] team0: Port device team_slave_0 added [ 986.382378][ T9919] team0: Port device team_slave_1 added [ 986.428296][ T9919] device hsr_slave_0 entered promiscuous mode [ 986.486579][ T9919] device hsr_slave_1 entered promiscuous mode [ 986.531682][ T9919] bridge0: port 2(bridge_slave_1) entered blocking state [ 986.538830][ T9919] bridge0: port 2(bridge_slave_1) entered forwarding state [ 986.546124][ T9919] bridge0: port 1(bridge_slave_0) entered blocking state [ 986.553276][ T9919] bridge0: port 1(bridge_slave_0) entered forwarding state [ 986.578581][ T9919] 8021q: adding VLAN 0 to HW filter on device bond0 [ 986.589737][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 986.598382][ T3014] bridge0: port 1(bridge_slave_0) entered disabled state [ 986.606480][ T3014] bridge0: port 2(bridge_slave_1) entered disabled state [ 986.614172][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 986.624180][ T9919] 8021q: adding VLAN 0 to HW filter on device team0 [ 986.633780][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 986.642170][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 986.649233][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 986.666857][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 986.676769][ T3014] bridge0: port 2(bridge_slave_1) entered blocking state [ 986.683828][ T3014] bridge0: port 2(bridge_slave_1) entered forwarding state [ 986.692109][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 986.701253][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 986.711543][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 986.721168][ T9923] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 986.729144][ T9923] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 986.739012][ T9919] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 986.753795][ T9919] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1149.806344][ T1057] INFO: task syz-executor.0:9936 blocked for more than 143 seconds. [ 1149.814394][ T1057] Not tainted 5.3.0-rc4 #107 [ 1149.820345][ T1057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1149.829384][ T1057] syz-executor.0 D27632 9936 9919 0x80004004 [ 1149.835717][ T1057] Call Trace: [ 1149.843391][ T1057] __schedule+0x755/0x1580 [ 1149.848044][ T1057] ? __sched_text_start+0x8/0x8 [ 1149.852925][ T1057] ? rwlock_bug.part.0+0x90/0x90 [ 1149.858528][ T1057] ? rwsem_down_read_slowpath+0x2b8/0xfb0 [ 1149.864251][ T1057] schedule+0xa8/0x270 [ 1149.868534][ T1057] rwsem_down_read_slowpath+0x4cc/0xfb0 [ 1149.874080][ T1057] ? down_write_killable_nested+0x180/0x180 [ 1149.880700][ T1057] ? mark_held_locks+0xf0/0xf0 [ 1149.885471][ T1057] ? lock_acquire+0x190/0x410 [ 1149.890551][ T1057] ? do_exit+0x47b/0x2e50 [ 1149.894888][ T1057] down_read+0x1f4/0x3f0 [ 1149.899829][ T1057] ? down_read+0xa3/0x3f0 [ 1149.904224][ T1057] ? down_read+0x1f4/0x3f0 [ 1149.909154][ T1057] ? down_read_killable+0x460/0x460 [ 1149.914354][ T1057] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1149.921243][ T1057] ? sync_mm_rss+0xa4/0x1c0 [ 1149.925764][ T1057] do_exit+0x47b/0x2e50 [ 1149.930231][ T1057] ? get_futex_key+0x1760/0x1760 [ 1149.935177][ T1057] ? mm_update_next_owner+0x640/0x640 [ 1149.941192][ T1057] ? __kasan_check_write+0x14/0x20 [ 1149.946473][ T1057] ? lock_downgrade+0x920/0x920 [ 1149.951319][ T1057] ? rwlock_bug.part.0+0x90/0x90 [ 1149.956861][ T1057] ? get_signal+0x20e/0x2500 [ 1149.961449][ T1057] do_group_exit+0x135/0x360 [ 1149.966035][ T1057] get_signal+0x47c/0x2500 [ 1149.971033][ T1057] ? security_mmap_file+0x1a5/0x1e0 [ 1149.976814][ T1057] ? vm_mmap_pgoff+0x107/0x230 [ 1149.981580][ T1057] do_signal+0x87/0x1700 [ 1149.985816][ T1057] ? vma_is_stack_for_current+0xd0/0xd0 [ 1149.991661][ T1057] ? trace_hardirqs_on+0x67/0x240 [ 1149.997435][ T1057] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 1150.003150][ T1057] ? setup_sigcontext+0x7d0/0x7d0 [ 1150.008352][ T1057] ? ksys_mmap_pgoff+0xff/0x630 [ 1150.013196][ T1057] ? find_mergeable_anon_vma+0x2e0/0x2e0 [ 1150.019433][ T1057] ? do_futex+0x1dc0/0x1dc0 [ 1150.023935][ T1057] ? trace_hardirqs_on+0x67/0x240 [ 1150.029142][ T1057] exit_to_usermode_loop+0x286/0x380 [ 1150.034424][ T1057] do_syscall_64+0x5a9/0x6a0 [ 1150.039618][ T1057] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1150.045500][ T1057] RIP: 0033:0x45987a [ 1150.049591][ T1057] Code: Bad RIP value. [ 1150.053645][ T1057] RSP: 002b:00007fff043a2f98 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 1150.062689][ T1057] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 000000000045987a [ 1150.070850][ T1057] RDX: 0000000000000003 RSI: 0000000000021000 RDI: 0000000000000000 [ 1150.079426][ T1057] RBP: ffffffffffffffff R08: ffffffffffffffff R09: 0000000000000000 [ 1150.087559][ T1057] R10: 0000000000020022 R11: 0000000000000246 R12: 0000000000000000 [ 1150.095520][ T1057] R13: 0000000000021000 R14: 0000000000020022 R15: 0000000000000000 [ 1150.104443][ T1057] INFO: task syz-executor.0:9937 blocked for more than 143 seconds. [ 1150.112579][ T1057] Not tainted 5.3.0-rc4 #107 [ 1150.118250][ T1057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1150.127156][ T1057] syz-executor.0 D28456 9937 9919 0x80004004 [ 1150.133491][ T1057] Call Trace: [ 1150.137387][ T1057] __schedule+0x755/0x1580 [ 1150.141803][ T1057] ? __sched_text_start+0x8/0x8 [ 1150.146847][ T1057] ? rwlock_bug.part.0+0x90/0x90 [ 1150.151783][ T1057] ? rwsem_down_read_slowpath+0x2b8/0xfb0 [ 1150.158177][ T1057] schedule+0xa8/0x270 [ 1150.162246][ T1057] rwsem_down_read_slowpath+0x4cc/0xfb0 [ 1150.168004][ T1057] ? down_write_killable_nested+0x180/0x180 [ 1150.173894][ T1057] ? mark_held_locks+0xf0/0xf0 [ 1150.179289][ T1057] ? lock_acquire+0x190/0x410 [ 1150.183961][ T1057] ? do_exit+0x47b/0x2e50 [ 1150.188487][ T1057] down_read+0x1f4/0x3f0 [ 1150.192722][ T1057] ? down_read+0xa3/0x3f0 [ 1150.197711][ T1057] ? down_read+0x1f4/0x3f0 [ 1150.202121][ T1057] ? down_read_killable+0x460/0x460 [ 1150.207516][ T1057] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1150.213757][ T1057] ? sync_mm_rss+0xa4/0x1c0 [ 1150.219034][ T1057] do_exit+0x47b/0x2e50 [ 1150.223210][ T1057] ? mm_update_next_owner+0x640/0x640 [ 1150.229212][ T1057] ? __kasan_check_write+0x14/0x20 [ 1150.234319][ T1057] ? lock_downgrade+0x920/0x920 [ 1150.239752][ T1057] ? rwlock_bug.part.0+0x90/0x90 [ 1150.244685][ T1057] ? get_signal+0x20e/0x2500 [ 1150.249486][ T1057] do_group_exit+0x135/0x360 [ 1150.254074][ T1057] get_signal+0x47c/0x2500 [ 1150.259085][ T1057] ? lock_downgrade+0x920/0x920 [ 1150.263935][ T1057] ? __might_fault+0xfb/0x1e0 [ 1150.268797][ T1057] do_signal+0x87/0x1700 [ 1150.273042][ T1057] ? __kasan_check_read+0x11/0x20 [ 1150.278768][ T1057] ? _copy_to_user+0x118/0x160 [ 1150.283527][ T1057] ? setup_sigcontext+0x7d0/0x7d0 [ 1150.288747][ T1057] ? do_futex+0x1dc0/0x1dc0 [ 1150.293245][ T1057] ? trace_hardirqs_on+0x67/0x240 [ 1150.298955][ T1057] exit_to_usermode_loop+0x286/0x380 [ 1150.304236][ T1057] do_syscall_64+0x5a9/0x6a0 [ 1150.309020][ T1057] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1150.314908][ T1057] RIP: 0033:0x459829 [ 1150.319414][ T1057] Code: Bad RIP value. [ 1150.323558][ T1057] RSP: 002b:00007f64e4527cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 1150.332172][ T1057] RAX: fffffffffffffe00 RBX: 000000000075bf28 RCX: 0000000000459829 [ 1150.340725][ T1057] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075bf28 [ 1150.348872][ T1057] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 1150.357834][ T1057] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bf2c [ 1150.367627][ T1057] R13: 00007fff043a303f R14: 00007f64e45289c0 R15: 000000000075bf2c [ 1150.375609][ T1057] INFO: task syz-executor.0:9939 blocked for more than 143 seconds. [ 1150.384223][ T1057] Not tainted 5.3.0-rc4 #107 [ 1150.389488][ T1057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1150.398762][ T1057] syz-executor.0 D28968 9939 9919 0x80004004 [ 1150.405099][ T1057] Call Trace: [ 1150.408607][ T1057] __schedule+0x755/0x1580 [ 1150.413019][ T1057] ? __sched_text_start+0x8/0x8 [ 1150.418476][ T1057] ? rwlock_bug.part.0+0x90/0x90 [ 1150.423417][ T1057] ? rwsem_down_read_slowpath+0x2b8/0xfb0 [ 1150.429343][ T1057] schedule+0xa8/0x270 [ 1150.433412][ T1057] rwsem_down_read_slowpath+0x4cc/0xfb0 [ 1150.439551][ T1057] ? down_write_killable_nested+0x180/0x180 [ 1150.445443][ T1057] ? mark_held_locks+0xf0/0xf0 [ 1150.450928][ T1057] ? __kasan_check_read+0x11/0x20 [ 1150.455950][ T1057] ? do_exit+0x29e/0x2e50 [ 1150.460903][ T1057] ? lock_acquire+0x190/0x410 [ 1150.465577][ T1057] ? acct_collect+0xf3/0x850 [ 1150.470410][ T1057] down_read+0x1f4/0x3f0 [ 1150.474645][ T1057] ? down_read+0xa3/0x3f0 [ 1150.479554][ T1057] ? down_read+0x1f4/0x3f0 [ 1150.484055][ T1057] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 1150.490837][ T1057] ? down_read_killable+0x460/0x460 [ 1150.496030][ T1057] ? lock_downgrade+0x920/0x920 [ 1150.501576][ T1057] ? hrtimer_run_softirq+0x270/0x270 [ 1150.507043][ T1057] acct_collect+0xf3/0x850 [ 1150.511456][ T1057] do_exit+0x1b56/0x2e50 [ 1150.515695][ T1057] ? mm_update_next_owner+0x640/0x640 [ 1150.521803][ T1057] ? __kasan_check_write+0x14/0x20 [ 1150.527145][ T1057] ? lock_downgrade+0x920/0x920 [ 1150.532077][ T1057] ? rwlock_bug.part.0+0x90/0x90 [ 1150.538913][ T1057] ? get_signal+0x20e/0x2500 [ 1150.543502][ T1057] do_group_exit+0x135/0x360 [ 1150.548300][ T1057] get_signal+0x47c/0x2500 [ 1150.552713][ T1057] ? lock_downgrade+0x920/0x920 [ 1150.558161][ T1057] ? __might_fault+0xfb/0x1e0 [ 1150.562837][ T1057] do_signal+0x87/0x1700 [ 1150.567281][ T1057] ? __kasan_check_read+0x11/0x20 [ 1150.572395][ T1057] ? _copy_to_user+0x118/0x160 [ 1150.577813][ T1057] ? setup_sigcontext+0x7d0/0x7d0 [ 1150.582847][ T1057] ? do_futex+0x1dc0/0x1dc0 [ 1150.587568][ T1057] ? trace_hardirqs_on+0x67/0x240 [ 1150.592595][ T1057] exit_to_usermode_loop+0x286/0x380 [ 1150.598505][ T1057] do_syscall_64+0x5a9/0x6a0 [ 1150.603093][ T1057] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1150.609688][ T1057] RIP: 0033:0x459829 [ 1150.613584][ T1057] Code: Bad RIP value. [ 1150.618635][ T1057] RSP: 002b:00007f64e4506cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 1150.627242][ T1057] RAX: fffffffffffffe00 RBX: 000000000075bfd0 RCX: 0000000000459829 [ 1150.635395][ T1057] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075bfd0 [ 1150.644056][ T1057] RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 [ 1150.652213][ T1057] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bfd4 [ 1150.660758][ T1057] R13: 00007fff043a303f R14: 00007f64e45079c0 R15: 000000000075bfd4 [ 1150.668940][ T1057] INFO: task syz-executor.0:9940 blocked for more than 144 seconds. [ 1150.677507][ T1057] Not tainted 5.3.0-rc4 #107 [ 1150.682603][ T1057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1150.691438][ T1057] syz-executor.0 D29472 9940 9939 0x80000000 [ 1150.698352][ T1057] Call Trace: [ 1150.701643][ T1057] __schedule+0x755/0x1580 [ 1150.706053][ T1057] ? __sched_text_start+0x8/0x8 [ 1150.711116][ T1057] ? rwlock_bug.part.0+0x90/0x90 [ 1150.716138][ T1057] ? rwsem_down_read_slowpath+0x647/0xfb0 [ 1150.722516][ T1057] schedule+0xa8/0x270 [ 1150.726754][ T1057] rwsem_down_read_slowpath+0x4cc/0xfb0 [ 1150.732298][ T1057] ? down_write_killable_nested+0x180/0x180 [ 1150.738799][ T1057] ? mark_held_locks+0xf0/0xf0 [ 1150.743559][ T1057] ? rcuwait_wake_up+0x11d/0x230 [ 1150.749109][ T1057] ? __kasan_check_read+0x11/0x20 [ 1150.754133][ T1057] ? do_exit+0x29e/0x2e50 [ 1150.759078][ T1057] ? lock_acquire+0x190/0x410 [ 1150.763750][ T1057] ? acct_collect+0xf3/0x850 [ 1150.768535][ T1057] down_read+0x1f4/0x3f0 [ 1150.772783][ T1057] ? down_read+0x1f4/0x3f0 [ 1150.777794][ T1057] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 1150.784027][ T1057] ? down_read_killable+0x460/0x460 [ 1150.789415][ T1057] ? lock_downgrade+0x920/0x920 [ 1150.794272][ T1057] ? hrtimer_run_softirq+0x270/0x270 [ 1150.800177][ T1057] acct_collect+0xf3/0x850 [ 1150.804593][ T1057] do_exit+0x1b56/0x2e50 [ 1150.809056][ T1057] ? mm_update_next_owner+0x640/0x640 [ 1150.814429][ T1057] ? force_sig_info+0x30/0x30 [ 1150.819707][ T1057] do_group_exit+0x135/0x360 [ 1150.824312][ T1057] __x64_sys_exit_group+0x44/0x50 [ 1150.829523][ T1057] do_syscall_64+0xfd/0x6a0 [ 1150.834023][ T1057] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1150.840503][ T1057] RIP: 0033:0x459829 [ 1150.844402][ T1057] Code: Bad RIP value. [ 1150.848660][ T1057] RSP: 002b:00007f64e4506688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 1150.857635][ T1057] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000000459829 [ 1150.865604][ T1057] RDX: 0000000000459829 RSI: 00007f64e45066c0 RDI: 000000000000000b [ 1150.873852][ T1057] RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 [ 1150.882796][ T1057] R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f64e45076d4 [ 1150.890946][ T1057] R13: 00000000004bfce6 R14: 00000000004d1a38 R15: 00000000ffffffff [ 1150.899557][ T1057] INFO: lockdep is turned off. [ 1150.904342][ T1057] NMI backtrace for cpu 0 [ 1150.908709][ T1057] CPU: 0 PID: 1057 Comm: khungtaskd Not tainted 5.3.0-rc4 #107 [ 1150.916267][ T1057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1150.926397][ T1057] Call Trace: [ 1150.929694][ T1057] dump_stack+0x172/0x1f0 [ 1150.934016][ T1057] nmi_cpu_backtrace.cold+0x70/0xb2 [ 1150.939207][ T1057] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1150.945529][ T1057] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 1150.951150][ T1057] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 1150.957132][ T1057] arch_trigger_cpumask_backtrace+0x14/0x20 [ 1150.963014][ T1057] watchdog+0x9d0/0xef0 [ 1150.967165][ T1057] kthread+0x361/0x430 [ 1150.971230][ T1057] ? reset_hung_task_detector+0x30/0x30 [ 1150.976763][ T1057] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 1150.982996][ T1057] ret_from_fork+0x24/0x30 [ 1150.987600][ T1057] Sending NMI from CPU 0 to CPUs 1: [ 1150.993269][ C1] NMI backtrace for cpu 1 [ 1150.993274][ C1] CPU: 1 PID: 9938 Comm: syz-executor.0 Not tainted 5.3.0-rc4 #107 [ 1150.993280][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1150.993283][ C1] RIP: 0010:arch_local_save_flags+0x0/0x50 [ 1150.993293][ C1] Code: 24 41 5c 41 5d 5d c3 5b 31 c0 41 5c 41 5d 5d c3 4c 89 e7 e8 02 b9 5d 00 eb bf 48 89 df e8 98 b9 5d 00 eb d0 66 0f 1f 44 00 00 <48> c7 c0 08 f3 d2 88 55 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 [ 1150.993296][ C1] RSP: 0018:ffff8880a782f880 EFLAGS: 00000246 [ 1150.993303][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffffffff134b48e [ 1150.993307][ C1] RDX: 1ffff11012802c97 RSI: 000000000000038d RDI: ffff8880940164b8 [ 1150.993312][ C1] RBP: ffff8880a782f8b0 R08: ffffffff818aca56 R09: ffffed1012005ca7 [ 1150.993316][ C1] R10: ffff8880a782fa90 R11: ffff88809002e537 R12: ffffffff878bd4a0 [ 1150.993320][ C1] R13: 000000000000038d R14: 0000000000000000 R15: ffff888094016140 [ 1150.993325][ C1] FS: 00007f64e4528700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 1150.993329][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1150.993333][ C1] CR2: ffffffffff600400 CR3: 00000000a01d1000 CR4: 00000000001406e0 [ 1150.993337][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1150.993341][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1150.993344][ C1] Call Trace: [ 1150.993351][ C1] ? ___might_sleep+0x163/0x280 [ 1150.993354][ C1] __might_sleep+0x95/0x190 [ 1150.993357][ C1] ? perf_mmap+0x727/0x19b0 [ 1150.993359][ C1] __mutex_lock+0xc5/0x13c0 [ 1150.993362][ C1] ? perf_mmap+0x736/0x19b0 [ 1150.993365][ C1] ? retint_kernel+0x2b/0x2b [ 1150.993368][ C1] ? mutex_lock_io_nested+0x1260/0x1260 [ 1150.993371][ C1] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 1150.993374][ C1] ? __kasan_check_write+0x14/0x20 [ 1150.993377][ C1] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 1150.993380][ C1] ? retint_kernel+0x2b/0x2b [ 1150.993383][ C1] ? wait_for_completion+0x440/0x440 [ 1150.993386][ C1] mutex_lock_nested+0x16/0x20 [ 1150.993389][ C1] ? mutex_lock_nested+0x16/0x20 [ 1150.993391][ C1] perf_mmap+0x736/0x19b0 [ 1150.993394][ C1] ? perf_release+0x50/0x50 [ 1150.993396][ C1] ? memset+0x32/0x40 [ 1150.993399][ C1] mmap_region+0xc35/0x1760 [ 1150.993402][ C1] ? __x64_sys_brk+0x760/0x760 [ 1150.993406][ C1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 1150.993409][ C1] ? get_unmapped_area+0x2ad/0x3d0 [ 1150.993412][ C1] do_mmap+0x82e/0x1090 [ 1150.993415][ C1] vm_mmap_pgoff+0x1c5/0x230 [ 1150.993418][ C1] ? vma_is_stack_for_current+0xd0/0xd0 [ 1150.993421][ C1] ? ksys_dup3+0x3e0/0x3e0 [ 1150.993424][ C1] ? _copy_to_user+0x118/0x160 [ 1150.993427][ C1] ksys_mmap_pgoff+0x4aa/0x630 [ 1150.993430][ C1] ? find_mergeable_anon_vma+0x2e0/0x2e0 [ 1150.993433][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1150.993437][ C1] ? __x64_sys_clock_gettime+0x16d/0x240 [ 1150.993439][ C1] __x64_sys_mmap+0xe9/0x1b0 [ 1150.993442][ C1] do_syscall_64+0xfd/0x6a0 [ 1150.993445][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1150.993448][ C1] RIP: 0033:0x459829 [ 1150.993457][ C1] Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 1150.993460][ C1] RSP: 002b:00007f64e4527c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 1150.993467][ C1] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000459829 [ 1150.993472][ C1] RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020ffd000 [ 1150.993476][ C1] RBP: 000000000075bf20 R08: 0000000000000003 R09: 0000000000000000 [ 1150.993480][ C1] R10: 0000000000000011 R11: 0000000000000246 R12: 00007f64e45286d4 [ 1150.993485][ C1] R13: 00000000004c5d1b R14: 00000000004da750 R15: 00000000ffffffff [ 1151.002050][ T1057] Kernel panic - not syncing: hung_task: blocked tasks [ 1151.372071][ T1057] CPU: 0 PID: 1057 Comm: khungtaskd Not tainted 5.3.0-rc4 #107 [ 1151.379717][ T1057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1151.389766][ T1057] Call Trace: [ 1151.393063][ T1057] dump_stack+0x172/0x1f0 [ 1151.397475][ T1057] panic+0x2dc/0x755 [ 1151.401373][ T1057] ? add_taint.cold+0x16/0x16 [ 1151.406042][ T1057] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 1151.411668][ T1057] ? ___preempt_schedule+0x16/0x20 [ 1151.416776][ T1057] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 1151.422929][ T1057] ? nmi_trigger_cpumask_backtrace+0x24c/0x28b [ 1151.429167][ T1057] ? nmi_trigger_cpumask_backtrace+0x256/0x28b [ 1151.435309][ T1057] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 1151.441458][ T1057] watchdog+0x9e1/0xef0 [ 1151.445699][ T1057] kthread+0x361/0x430 [ 1151.450108][ T1057] ? reset_hung_task_detector+0x30/0x30 [ 1151.455960][ T1057] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 1151.462196][ T1057] ret_from_fork+0x24/0x30 [ 1151.468300][ T1057] Kernel Offset: disabled [ 1151.472636][ T1057] Rebooting in 86400 seconds..