Warning: Permanently added '10.128.0.39' (ED25519) to the list of known hosts.
2023/12/02 08:49:17 ignoring optional flag "sandboxArg"="0"
2023/12/02 08:49:17 parsed 1 programs
2023/12/02 08:49:17 executed programs: 0
[ 41.814841][ T30] audit: type=1400 audit(1701506957.423:152): avc: denied { mounton } for pid=339 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1
[ 41.839932][ T30] audit: type=1400 audit(1701506957.423:153): avc: denied { mount } for pid=339 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1
[ 41.878336][ T344] bridge0: port 1(bridge_slave_0) entered blocking state
[ 41.885496][ T344] bridge0: port 1(bridge_slave_0) entered disabled state
[ 41.892966][ T344] device bridge_slave_0 entered promiscuous mode
[ 41.899722][ T344] bridge0: port 2(bridge_slave_1) entered blocking state
[ 41.906651][ T344] bridge0: port 2(bridge_slave_1) entered disabled state
[ 41.913850][ T344] device bridge_slave_1 entered promiscuous mode
[ 41.956751][ T30] audit: type=1400 audit(1701506957.563:154): avc: denied { write } for pid=344 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 41.965983][ T344] bridge0: port 2(bridge_slave_1) entered blocking state
[ 41.978168][ T30] audit: type=1400 audit(1701506957.563:155): avc: denied { read } for pid=344 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1
[ 41.984908][ T344] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 41.985014][ T344] bridge0: port 1(bridge_slave_0) entered blocking state
[ 42.019523][ T344] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 42.038777][ T39] bridge0: port 1(bridge_slave_0) entered disabled state
[ 42.046312][ T39] bridge0: port 2(bridge_slave_1) entered disabled state
[ 42.054925][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 42.063091][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 42.072429][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 42.081171][ T20] bridge0: port 1(bridge_slave_0) entered blocking state
[ 42.089224][ T20] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 42.110148][ T344] device veth0_vlan entered promiscuous mode
[ 42.117668][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 42.126541][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 42.135180][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 42.143360][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 42.151010][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 42.158963][ T39] bridge0: port 2(bridge_slave_1) entered blocking state
[ 42.165964][ T39] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 42.174802][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 42.183367][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 42.196189][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 42.205503][ T344] device veth1_macvtap entered promiscuous mode
[ 42.214830][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 42.227610][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 42.242213][ T30] audit: type=1400 audit(1701506957.853:156): avc: denied { mounton } for pid=344 comm="syz-executor.0" path="/dev/binderfs" dev="devtmpfs" ino=362 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[ 42.275309][ T30] audit: type=1400 audit(1701506957.883:157): avc: denied { write } for pid=350 comm="syz-executor.0" name="vga_arbiter" dev="devtmpfs" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:xserver_misc_device_t tclass=chr_file permissive=1
[ 143.970424][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 143.977216][ C1] (detected by 1, t=10004 jiffies, g=2161, q=2614)
[ 143.983834][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10004 (4294951608-4294941604), jiffies_till_next_fqs=1, root ->qsmask 0x0
[ 143.998072][ C1] rcu: rcu_preempt kthread starved for 10004 jiffies! g2161 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[ 144.009086][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 144.018899][ C1] rcu: RCU grace-period kthread stack dump:
[ 144.024978][ C1] task:rcu_preempt state:R running task stack:28288 pid: 14 ppid: 2 flags:0x00004000
[ 144.035566][ C1] Call Trace:
[ 144.038806][ C1]
[ 144.041900][ C1] __schedule+0xcbe/0x1580
[ 144.046245][ C1] ? __sched_text_start+0x8/0x8
[ 144.050925][ C1] ? __kasan_check_write+0x14/0x20
[ 144.056044][ C1] schedule+0x11f/0x1e0
[ 144.060212][ C1] schedule_timeout+0x18c/0x370
[ 144.064894][ C1] ? _raw_spin_unlock_irq+0x4e/0x70
[ 144.069931][ C1] ? console_conditional_schedule+0x30/0x30
[ 144.075917][ C1] ? update_process_times+0x200/0x200
[ 144.081214][ C1] ? prepare_to_swait_event+0x308/0x320
[ 144.086592][ C1] rcu_gp_fqs_loop+0x29f/0xe60
[ 144.091382][ C1] ? debug_smp_processor_id+0x17/0x20
[ 144.096576][ C1] ? __note_gp_changes+0x4ab/0x920
[ 144.101520][ C1] ? rcu_gp_init+0xc20/0xc20
[ 144.105948][ C1] ? _raw_spin_unlock_irq+0x4e/0x70
[ 144.111152][ C1] ? rcu_gp_init+0x9c5/0xc20
[ 144.115587][ C1] rcu_gp_kthread+0xa4/0x350
[ 144.120137][ C1] ? _raw_spin_lock+0x1b0/0x1b0
[ 144.124819][ C1] ? rcu_barrier_callback+0x50/0x50
[ 144.129852][ C1] ? __kasan_check_read+0x11/0x20
[ 144.134721][ C1] ? __kthread_parkme+0xb2/0x200
[ 144.139497][ C1] kthread+0x421/0x510
[ 144.143562][ C1] ? rcu_barrier_callback+0x50/0x50
[ 144.148609][ C1] ? kthread_blkcg+0xd0/0xd0
[ 144.153031][ C1] ret_from_fork+0x1f/0x30
[ 144.157382][ C1]
[ 144.160454][ C1] rcu: Stack dump where RCU GP kthread last ran:
[ 144.166834][ C1] Sending NMI from CPU 1 to CPUs 0:
[ 144.172048][ C0] NMI backtrace for cpu 0
[ 144.172063][ C0] CPU: 0 PID: 1018 Comm: syz-executor.0 Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 144.172084][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 144.172093][ C0] RIP: 0010:vga_arb_release+0x1f7/0x950
[ 144.172119][ C0] Code: f7 e8 5d 4a d3 fe 4d 8b 26 4d 85 e4 74 07 e8 d0 58 91 fe eb 15 4c 8b 25 e7 96 f3 03 4d 85 e4 0f 84 07 01 00 00 e8 b9 58 91 fe <48> c7 c7 e0 3b d2 86 e8 3d 0d e9 01 48 89 45 88 49 c7 c6 00 b0 64
[ 144.172133][ C0] RSP: 0018:ffffc9000234fd18 EFLAGS: 00000093
[ 144.172148][ C0] RAX: ffffffff82dea4d0 RBX: ffff88811c76c424 RCX: ffff888117db13c0
[ 144.172162][ C0] RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000001
[ 144.172172][ C0] RBP: ffffc9000234fda8 R08: ffffffff82dea699 R09: 0000000000000003
[ 144.172184][ C0] R10: fffff52000469f90 R11: dffffc0000000001 R12: ffff888105b88000
[ 144.172197][ C0] R13: ffffffff8664b000 R14: ffff88811c76c418 R15: dffffc0000000000
[ 144.172210][ C0] FS: 00005555573ee480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 144.172225][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 144.172237][ C0] CR2: 00007f345805cd58 CR3: 0000000118c6f000 CR4: 00000000003506b0
[ 144.172252][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 144.172262][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 144.172273][ C0] Call Trace:
[ 144.172278][ C0]
[ 144.172285][ C0] ? show_regs+0x58/0x60
[ 144.172303][ C0] ? nmi_cpu_backtrace+0x29f/0x300
[ 144.172323][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 144.172343][ C0] ? vga_arb_release+0x1f7/0x950
[ 144.172358][ C0] ? vga_arb_release+0x1f7/0x950
[ 144.172373][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 144.172398][ C0] ? nmi_handle+0xa8/0x280
[ 144.172416][ C0] ? vga_arb_release+0x1f7/0x950
[ 144.172431][ C0] ? default_do_nmi+0x69/0x160
[ 144.172447][ C0] ? exc_nmi+0xaf/0x120
[ 144.172465][ C0] ? end_repeat_nmi+0x16/0x31
[ 144.172484][ C0] ? vga_arb_release+0x3a9/0x950
[ 144.172499][ C0] ? vga_arb_release+0x1e0/0x950
[ 144.172515][ C0] ? vga_arb_release+0x1f7/0x950
[ 144.172530][ C0] ? vga_arb_release+0x1f7/0x950
[ 144.172546][ C0] ? vga_arb_release+0x1f7/0x950
[ 144.172561][ C0]
[ 144.172566][ C0]
[ 144.172572][ C0] ? vga_arb_open+0x220/0x220
[ 144.172587][ C0] __fput+0x3fe/0x910
[ 144.172605][ C0] ____fput+0x15/0x20
[ 144.172620][ C0] task_work_run+0x129/0x190
[ 144.172636][ C0] exit_to_user_mode_loop+0xc4/0xe0
[ 144.172656][ C0] exit_to_user_mode_prepare+0x5a/0xa0
[ 144.172673][ C0] syscall_exit_to_user_mode+0x26/0x160
[ 144.172690][ C0] do_syscall_64+0x49/0xb0
[ 144.172708][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 144.172727][ C0] RIP: 0033:0x7f34584f98da
[ 144.172754][ C0] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 f3 7d 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 53 7e 02 00 8b 44 24
[ 144.172768][ C0] RSP: 002b:00007ffcb65e8d50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 144.172784][ C0] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f34584f98da
[ 144.172795][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[ 144.172804][ C0] RBP: 0000000000000032 R08: 0000001b31360000 R09: 00007f345861a05c
[ 144.172816][ C0] R10: 00007ffcb65e8ea0 R11: 0000000000000293 R12: 00007f345807e338
[ 144.172827][ C0] R13: ffffffffffffffff R14: 00007f345807e000 R15: 000000000000ab87
[ 144.172841][ C0]
[ 185.650440][ T31] INFO: task khugepaged:35 blocked for more than 123 seconds.
[ 185.658179][ T31] Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 185.666281][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 185.675110][ T31] task:khugepaged state:D stack:28240 pid: 35 ppid: 2 flags:0x00004000
[ 185.684971][ T31] Call Trace:
[ 185.688237][ T31]
[ 185.691257][ T31] __schedule+0xcbe/0x1580
[ 185.695876][ T31] ? __sched_text_start+0x8/0x8
[ 185.701624][ T31] ? check_preempt_wakeup+0x882/0xbe0
[ 185.707016][ T31] schedule+0x11f/0x1e0
[ 185.711256][ T31] schedule_timeout+0xa9/0x370
[ 185.715855][ T31] ? console_conditional_schedule+0x30/0x30
[ 185.721970][ T31] ? __prepare_to_swait+0xac/0x130
[ 185.727440][ T31] wait_for_common+0x285/0x420
[ 185.733478][ T31] ? wait_for_completion+0x20/0x20
[ 185.738865][ T31] ? _raw_spin_lock_irq+0xa5/0x1b0
[ 185.744130][ T31] ? wake_up_process+0x10/0x20
[ 185.748833][ T31] ? insert_work+0x299/0x320
[ 185.753712][ T31] wait_for_completion+0x18/0x20
[ 185.758657][ T31] __flush_work+0x5d7/0x720
[ 185.763343][ T31] ? __queue_work+0x94d/0xcd0
[ 185.768491][ T31] ? flush_work+0x20/0x20
[ 185.773344][ T31] ? move_linked_works+0x260/0x260
[ 185.778286][ T31] ? wq_worker_last_func+0x50/0x50
[ 185.783494][ T31] ? console_conditional_schedule+0x30/0x30
[ 185.789384][ T31] flush_work+0x17/0x20
[ 185.793568][ T31] __lru_add_drain_all+0x97d/0xa70
[ 185.798731][ T31] lru_add_drain_all+0x10/0x20
[ 185.804022][ T31] khugepaged+0x171/0x1070
[ 185.808447][ T31] ? start_stop_khugepaged+0x160/0x160
[ 185.813928][ T31] ? io_schedule+0x120/0x120
[ 185.818440][ T31] ? __kasan_check_write+0x14/0x20
[ 185.823768][ T31] ? io_schedule+0x120/0x120
[ 185.828287][ T31] ? _raw_spin_lock+0x1b0/0x1b0
[ 185.833481][ T31] ? __kthread_parkme+0xb2/0x200
[ 185.838530][ T31] kthread+0x421/0x510
[ 185.843044][ T31] ? start_stop_khugepaged+0x160/0x160
[ 185.848426][ T31] ? kthread_blkcg+0xd0/0xd0
[ 185.853349][ T31] ret_from_fork+0x1f/0x30
[ 185.858206][ T31]
[ 185.861379][ T31] NMI backtrace for cpu 1
[ 185.865619][ T31] CPU: 1 PID: 31 Comm: khungtaskd Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 185.876654][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 185.887376][ T31] Call Trace:
[ 185.891276][ T31]
[ 185.894589][ T31] dump_stack_lvl+0x151/0x1b7
[ 185.899594][ T31] ? io_uring_drop_tctx_refs+0x190/0x190
[ 185.905311][ T31] dump_stack+0x15/0x17
[ 185.909389][ T31] nmi_cpu_backtrace+0x2f7/0x300
[ 185.914452][ T31] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 185.920966][ T31] ? sched_show_task+0x3d8/0x620
[ 185.925826][ T31] ? __rcu_read_unlock+0xd0/0xd0
[ 185.931232][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 185.937395][ T31] nmi_trigger_cpumask_backtrace+0x15d/0x270
[ 185.943598][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 185.950929][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 185.957243][ T31] watchdog+0xdd7/0xf50
[ 185.962082][ T31] ? __kasan_check_write+0x14/0x20
[ 185.967568][ T31] ? hungtask_pm_notify+0x50/0x50
[ 185.972858][ T31] ? __kasan_check_read+0x11/0x20
[ 185.978594][ T31] ? __kthread_parkme+0xb2/0x200
[ 185.984402][ T31] kthread+0x421/0x510
[ 185.988837][ T31] ? hungtask_pm_notify+0x50/0x50
[ 185.994183][ T31] ? kthread_blkcg+0xd0/0xd0
[ 185.998897][ T31] ret_from_fork+0x1f/0x30
[ 186.003239][ T31]
[ 186.006157][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 186.011247][ C0] NMI backtrace for cpu 0
[ 186.011257][ C0] CPU: 0 PID: 1018 Comm: syz-executor.0 Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 186.011276][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 186.011286][ C0] RIP: 0010:_raw_spin_lock_irqsave+0x115/0x210
[ 186.011310][ C0] Code: fc 4c 89 e7 be 04 00 00 00 e8 f7 3d ea fc 42 0f b6 04 3b 84 c0 0f 85 bf 00 00 00 8b 44 24 40 b9 01 00 00 00 f0 41 0f b1 4d 00 <75> 45 48 c7 44 24 20 0e 36 e0 45 4b c7 04 37 00 00 00 00 43 c7 44
[ 186.011324][ C0] RSP: 0018:ffffc9000234fc40 EFLAGS: 00000046
[ 186.011340][ C0] RAX: 0000000000000000 RBX: 1ffff92000469f90 RCX: 0000000000000001
[ 186.011352][ C0] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc9000234fc80
[ 186.011363][ C0] RBP: ffffc9000234fd08 R08: dffffc0000000000 R09: 0000000000000003
[ 186.011375][ C0] R10: fffff52000469f90 R11: dffffc0000000001 R12: ffffc9000234fc80
[ 186.011387][ C0] R13: ffffffff86d23be0 R14: 1ffff92000469f8c R15: dffffc0000000000
[ 186.011400][ C0] FS: 00005555573ee480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 186.011416][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 186.011428][ C0] CR2: 00007f345805cd58 CR3: 0000000118c6f000 CR4: 00000000003506b0
[ 186.011443][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 186.011453][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 186.011463][ C0] Call Trace:
[ 186.011469][ C0]
[ 186.011475][ C0] ? show_regs+0x58/0x60
[ 186.011493][ C0] ? nmi_cpu_backtrace+0x29f/0x300
[ 186.011513][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 186.011538][ C0] ? _raw_spin_lock_irqsave+0x115/0x210
[ 186.011555][ C0] ? _raw_spin_lock_irqsave+0x115/0x210
[ 186.011572][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 186.011591][ C0] ? nmi_handle+0xa8/0x280
[ 186.011608][ C0] ? _raw_spin_lock_irqsave+0x115/0x210
[ 186.011624][ C0] ? vga_arb_release+0x1f7/0x950
[ 186.011641][ C0] ? default_do_nmi+0x69/0x160
[ 186.011658][ C0] ? exc_nmi+0xaf/0x120
[ 186.011672][ C0] ? end_repeat_nmi+0x16/0x31
[ 186.011691][ C0] ? _raw_spin_lock_irqsave+0x115/0x210
[ 186.011708][ C0] ? _raw_spin_lock_irqsave+0x115/0x210
[ 186.011726][ C0] ? _raw_spin_lock_irqsave+0x115/0x210
[ 186.011743][ C0]
[ 186.011748][ C0]
[ 186.011753][ C0] ? _raw_spin_lock+0x1b0/0x1b0
[ 186.011769][ C0] ? __fsnotify_parent+0x4b9/0x6c0
[ 186.011787][ C0] vga_arb_release+0x203/0x950
[ 186.011804][ C0] ? vga_arb_open+0x220/0x220
[ 186.011819][ C0] __fput+0x3fe/0x910
[ 186.011837][ C0] ____fput+0x15/0x20
[ 186.011851][ C0] task_work_run+0x129/0x190
[ 186.011868][ C0] exit_to_user_mode_loop+0xc4/0xe0
[ 186.011885][ C0] exit_to_user_mode_prepare+0x5a/0xa0
[ 186.011902][ C0] syscall_exit_to_user_mode+0x26/0x160
[ 186.011919][ C0] do_syscall_64+0x49/0xb0
[ 186.011938][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 186.011956][ C0] RIP: 0033:0x7f34584f98da
[ 186.011971][ C0] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 f3 7d 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 53 7e 02 00 8b 44 24
[ 186.011984][ C0] RSP: 002b:00007ffcb65e8d50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 186.012000][ C0] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f34584f98da
[ 186.012010][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[ 186.012020][ C0] RBP: 0000000000000032 R08: 0000001b31360000 R09: 00007f345861a05c
[ 186.012032][ C0] R10: 00007ffcb65e8ea0 R11: 0000000000000293 R12: 00007f345807e338
[ 186.012044][ C0] R13: ffffffffffffffff R14: 00007f345807e000 R15: 000000000000ab87
[ 186.012058][ C0]
[ 206.130486][ T31] INFO: task khugepaged:35 blocked for more than 144 seconds.
[ 206.137894][ T31] Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 206.145929][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 206.154626][ T31] task:khugepaged state:D stack:28240 pid: 35 ppid: 2 flags:0x00004000
[ 206.164422][ T31] Call Trace:
[ 206.167876][ T31]
[ 206.170906][ T31] __schedule+0xcbe/0x1580
[ 206.175253][ T31] ? __sched_text_start+0x8/0x8
[ 206.180020][ T31] ? check_preempt_wakeup+0x882/0xbe0
[ 206.186056][ T31] schedule+0x11f/0x1e0
[ 206.190235][ T31] schedule_timeout+0xa9/0x370
[ 206.195354][ T31] ? console_conditional_schedule+0x30/0x30
[ 206.201273][ T31] ? __prepare_to_swait+0xac/0x130
[ 206.206320][ T31] wait_for_common+0x285/0x420
[ 206.211173][ T31] ? wait_for_completion+0x20/0x20
[ 206.216279][ T31] ? _raw_spin_lock_irq+0xa5/0x1b0
[ 206.221726][ T31] ? wake_up_process+0x10/0x20
[ 206.226400][ T31] ? insert_work+0x299/0x320
[ 206.231305][ T31] wait_for_completion+0x18/0x20
[ 206.236509][ T31] __flush_work+0x5d7/0x720
[ 206.241286][ T31] ? __queue_work+0x94d/0xcd0
[ 206.245869][ T31] ? flush_work+0x20/0x20
[ 206.250214][ T31] ? move_linked_works+0x260/0x260
[ 206.255396][ T31] ? wq_worker_last_func+0x50/0x50
[ 206.260619][ T31] ? console_conditional_schedule+0x30/0x30
[ 206.266942][ T31] flush_work+0x17/0x20
[ 206.271559][ T31] __lru_add_drain_all+0x97d/0xa70
[ 206.276581][ T31] lru_add_drain_all+0x10/0x20
[ 206.282007][ T31] khugepaged+0x171/0x1070
[ 206.286339][ T31] ? start_stop_khugepaged+0x160/0x160
[ 206.292140][ T31] ? io_schedule+0x120/0x120
[ 206.297007][ T31] ? __kasan_check_write+0x14/0x20
[ 206.302293][ T31] ? io_schedule+0x120/0x120
[ 206.306879][ T31] ? _raw_spin_lock+0x1b0/0x1b0
[ 206.312058][ T31] ? __kthread_parkme+0xb2/0x200
[ 206.316853][ T31] kthread+0x421/0x510
[ 206.322534][ T31] ? start_stop_khugepaged+0x160/0x160
[ 206.328414][ T31] ? kthread_blkcg+0xd0/0xd0
[ 206.333343][ T31] ret_from_fork+0x1f/0x30
[ 206.337875][ T31]
[ 206.341032][ T31] NMI backtrace for cpu 1
[ 206.345257][ T31] CPU: 1 PID: 31 Comm: khungtaskd Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 206.355327][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 206.365712][ T31] Call Trace:
[ 206.368927][ T31]
[ 206.371802][ T31] dump_stack_lvl+0x151/0x1b7
[ 206.376827][ T31] ? io_uring_drop_tctx_refs+0x190/0x190
[ 206.382549][ T31] dump_stack+0x15/0x17
[ 206.386632][ T31] nmi_cpu_backtrace+0x2f7/0x300
[ 206.391581][ T31] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 206.397940][ T31] ? sched_show_task+0x3d8/0x620
[ 206.402784][ T31] ? __rcu_read_unlock+0xd0/0xd0
[ 206.407552][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 206.413710][ T31] nmi_trigger_cpumask_backtrace+0x15d/0x270
[ 206.419528][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 206.425431][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 206.431193][ T31] watchdog+0xdd7/0xf50
[ 206.435147][ T31] ? __kasan_check_write+0x14/0x20
[ 206.440100][ T31] ? hungtask_pm_notify+0x50/0x50
[ 206.445045][ T31] ? __kasan_check_read+0x11/0x20
[ 206.450251][ T31] ? __kthread_parkme+0xb2/0x200
[ 206.455114][ T31] kthread+0x421/0x510
[ 206.459021][ T31] ? hungtask_pm_notify+0x50/0x50
[ 206.464254][ T31] ? kthread_blkcg+0xd0/0xd0
[ 206.468664][ T31] ret_from_fork+0x1f/0x30
[ 206.473002][ T31]
[ 206.475924][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 206.481026][ C0] NMI backtrace for cpu 0
[ 206.481038][ C0] CPU: 0 PID: 1018 Comm: syz-executor.0 Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 206.481058][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 206.481068][ C0] RIP: 0010:__kasan_check_write+0x0/0x20
[ 206.481098][ C0] Code: 5b 51 0f 03 31 db eb d3 cc cc 55 48 89 e5 89 f6 48 8b 4d 08 31 d2 e8 ff ed ff ff 5d c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <55> 48 89 e5 89 f6 48 8b 4d 08 ba 01 00 00 00 e8 dc ed ff ff 5d c3
[ 206.481112][ C0] RSP: 0018:ffffc9000234fc38 EFLAGS: 00000097
[ 206.481129][ C0] RAX: 0000000000000001 RBX: 1ffff92000469f90 RCX: ffffffff84c7b31c
[ 206.481142][ C0] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc9000234fc80
[ 206.481153][ C0] RBP: ffffc9000234fd08 R08: dffffc0000000000 R09: 0000000000000003
[ 206.481165][ C0] R10: fffffbfff0da477c R11: dffffc0000000001 R12: ffffc9000234fc80
[ 206.481177][ C0] R13: ffffffff86d23be0 R14: 1ffff92000469f8c R15: dffffc0000000000
[ 206.481196][ C0] FS: 00005555573ee480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 206.481211][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 206.481223][ C0] CR2: 00007f345805cd58 CR3: 0000000118c6f000 CR4: 00000000003506b0
[ 206.481238][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 206.481248][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 206.481258][ C0] Call Trace:
[ 206.481264][ C0]
[ 206.481271][ C0] ? show_regs+0x58/0x60
[ 206.481289][ C0] ? nmi_cpu_backtrace+0x29f/0x300
[ 206.481308][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 206.481328][ C0] ? __kasan_check_read+0x20/0x20
[ 206.481344][ C0] ? __kasan_check_read+0x20/0x20
[ 206.481360][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 206.481379][ C0] ? nmi_handle+0xa8/0x280
[ 206.481396][ C0] ? __kasan_check_read+0x20/0x20
[ 206.481411][ C0] ? _raw_spin_lock_irqsave+0x115/0x210
[ 206.481430][ C0] ? default_do_nmi+0x69/0x160
[ 206.481446][ C0] ? exc_nmi+0xaf/0x120
[ 206.481460][ C0] ? end_repeat_nmi+0x16/0x31
[ 206.481478][ C0] ? _raw_spin_lock_irqsave+0xec/0x210
[ 206.481496][ C0] ? __kasan_check_read+0x20/0x20
[ 206.481512][ C0] ? __kasan_check_read+0x20/0x20
[ 206.481529][ C0] ? __kasan_check_read+0x20/0x20
[ 206.481545][ C0]
[ 206.481550][ C0]
[ 206.481555][ C0] ? _raw_spin_lock_irqsave+0xf9/0x210
[ 206.481572][ C0] ? _raw_spin_lock+0x1b0/0x1b0
[ 206.481589][ C0] ? __fsnotify_parent+0x4b9/0x6c0
[ 206.481606][ C0] vga_arb_release+0x203/0x950
[ 206.481625][ C0] ? vga_arb_open+0x220/0x220
[ 206.481640][ C0] __fput+0x3fe/0x910
[ 206.481658][ C0] ____fput+0x15/0x20
[ 206.481672][ C0] task_work_run+0x129/0x190
[ 206.481689][ C0] exit_to_user_mode_loop+0xc4/0xe0
[ 206.481709][ C0] exit_to_user_mode_prepare+0x5a/0xa0
[ 206.481726][ C0] syscall_exit_to_user_mode+0x26/0x160
[ 206.481744][ C0] do_syscall_64+0x49/0xb0
[ 206.481763][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 206.481782][ C0] RIP: 0033:0x7f34584f98da
[ 206.481797][ C0] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 f3 7d 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 53 7e 02 00 8b 44 24
[ 206.481810][ C0] RSP: 002b:00007ffcb65e8d50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 206.481827][ C0] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f34584f98da
[ 206.481839][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[ 206.481849][ C0] RBP: 0000000000000032 R08: 0000001b31360000 R09: 00007f345861a05c
[ 206.481861][ C0] R10: 00007ffcb65e8ea0 R11: 0000000000000293 R12: 00007f345807e338
[ 206.481873][ C0] R13: ffffffffffffffff R14: 00007f345807e000 R15: 000000000000ab87
[ 206.481889][ C0]
[ 226.610424][ T31] INFO: task khugepaged:35 blocked for more than 164 seconds.
[ 226.618168][ T31] Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 226.626451][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 226.636400][ T31] task:khugepaged state:D stack:28240 pid: 35 ppid: 2 flags:0x00004000
[ 226.645656][ T31] Call Trace:
[ 226.648641][ T31]
[ 226.652073][ T31] __schedule+0xcbe/0x1580
[ 226.656413][ T31] ? __sched_text_start+0x8/0x8
[ 226.661301][ T31] ? check_preempt_wakeup+0x882/0xbe0
[ 226.666497][ T31] schedule+0x11f/0x1e0
[ 226.670666][ T31] schedule_timeout+0xa9/0x370
[ 226.675533][ T31] ? console_conditional_schedule+0x30/0x30
[ 226.681704][ T31] ? __prepare_to_swait+0xac/0x130
[ 226.686650][ T31] wait_for_common+0x285/0x420
[ 226.691416][ T31] ? wait_for_completion+0x20/0x20
[ 226.696932][ T31] ? _raw_spin_lock_irq+0xa5/0x1b0
[ 226.702320][ T31] ? wake_up_process+0x10/0x20
[ 226.707255][ T31] ? insert_work+0x299/0x320
[ 226.712160][ T31] wait_for_completion+0x18/0x20
[ 226.716999][ T31] __flush_work+0x5d7/0x720
[ 226.721632][ T31] ? __queue_work+0x94d/0xcd0
[ 226.726403][ T31] ? flush_work+0x20/0x20
[ 226.731616][ T31] ? move_linked_works+0x260/0x260
[ 226.736641][ T31] ? wq_worker_last_func+0x50/0x50
[ 226.741962][ T31] ? console_conditional_schedule+0x30/0x30
[ 226.747943][ T31] flush_work+0x17/0x20
[ 226.752222][ T31] __lru_add_drain_all+0x97d/0xa70
[ 226.757250][ T31] lru_add_drain_all+0x10/0x20
[ 226.762232][ T31] khugepaged+0x171/0x1070
[ 226.766561][ T31] ? start_stop_khugepaged+0x160/0x160
[ 226.772142][ T31] ? io_schedule+0x120/0x120
[ 226.776816][ T31] ? __kasan_check_write+0x14/0x20
[ 226.782141][ T31] ? io_schedule+0x120/0x120
[ 226.786579][ T31] ? _raw_spin_lock+0x1b0/0x1b0
[ 226.791852][ T31] ? __kthread_parkme+0xb2/0x200
[ 226.796700][ T31] kthread+0x421/0x510
[ 226.800861][ T31] ? start_stop_khugepaged+0x160/0x160
[ 226.806487][ T31] ? kthread_blkcg+0xd0/0xd0
[ 226.811518][ T31] ret_from_fork+0x1f/0x30
[ 226.815930][ T31]
[ 226.819110][ T31] NMI backtrace for cpu 1
[ 226.823706][ T31] CPU: 1 PID: 31 Comm: khungtaskd Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 226.833840][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 226.844879][ T31] Call Trace:
[ 226.848340][ T31]
[ 226.851384][ T31] dump_stack_lvl+0x151/0x1b7
[ 226.856239][ T31] ? io_uring_drop_tctx_refs+0x190/0x190
[ 226.862081][ T31] dump_stack+0x15/0x17
[ 226.866290][ T31] nmi_cpu_backtrace+0x2f7/0x300
[ 226.871747][ T31] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 226.877818][ T31] ? sched_show_task+0x3d8/0x620
[ 226.882679][ T31] ? __rcu_read_unlock+0xd0/0xd0
[ 226.887454][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 226.894152][ T31] nmi_trigger_cpumask_backtrace+0x15d/0x270
[ 226.900164][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 226.906131][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 226.912205][ T31] watchdog+0xdd7/0xf50
[ 226.916208][ T31] ? __kasan_check_write+0x14/0x20
[ 226.921147][ T31] ? hungtask_pm_notify+0x50/0x50
[ 226.926007][ T31] ? __kasan_check_read+0x11/0x20
[ 226.930903][ T31] ? __kthread_parkme+0xb2/0x200
[ 226.936199][ T31] kthread+0x421/0x510
[ 226.940286][ T31] ? hungtask_pm_notify+0x50/0x50
[ 226.945398][ T31] ? kthread_blkcg+0xd0/0xd0
[ 226.950272][ T31] ret_from_fork+0x1f/0x30
[ 226.954509][ T31]
[ 226.957438][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 226.962612][ C0] NMI backtrace for cpu 0
[ 226.962622][ C0] CPU: 0 PID: 1018 Comm: syz-executor.0 Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 226.962641][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 226.962651][ C0] RIP: 0010:_raw_spin_lock_irqsave+0x0/0x210
[ 226.962674][ C0] Code: c1 03 38 c1 0f 8c 71 ff ff ff 48 8d 7c 24 20 e8 86 3d ea fc e9 62 ff ff ff e8 7c 12 fa ff 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec a0 00
[ 226.962687][ C0] RSP: 0018:ffffc9000234fd10 EFLAGS: 00000093
[ 226.962703][ C0] RAX: ffffffff82dea4d0 RBX: ffff88811c76c424 RCX: ffff888117db13c0
[ 226.962716][ C0] RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffffffff86d23be0
[ 226.962728][ C0] RBP: ffffc9000234fda8 R08: ffffffff82dea699 R09: 0000000000000003
[ 226.962740][ C0] R10: fffff52000469f90 R11: dffffc0000000001 R12: ffff888105b88000
[ 226.962752][ C0] R13: ffffffff8664b000 R14: ffff88811c76c418 R15: dffffc0000000000
[ 226.962770][ C0] FS: 00005555573ee480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 226.962785][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 226.962797][ C0] CR2: 00007f345805cd58 CR3: 0000000118c6f000 CR4: 00000000003506b0
[ 226.962811][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 226.962821][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 226.962832][ C0] Call Trace:
[ 226.962836][ C0]
[ 226.962842][ C0] ? show_regs+0x58/0x60
[ 226.962859][ C0] ? nmi_cpu_backtrace+0x29f/0x300
[ 226.962878][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 226.962898][ C0] ? _raw_spin_lock+0x1b0/0x1b0
[ 226.962914][ C0] ? _raw_spin_lock+0x1b0/0x1b0
[ 226.962930][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 226.962949][ C0] ? nmi_handle+0xa8/0x280
[ 226.962965][ C0] ? _raw_spin_lock+0x1b0/0x1b0
[ 226.962981][ C0] ? __kasan_check_read+0x20/0x20
[ 226.962998][ C0] ? default_do_nmi+0x69/0x160
[ 226.963014][ C0] ? exc_nmi+0xaf/0x120
[ 226.963028][ C0] ? end_repeat_nmi+0x16/0x31
[ 226.963047][ C0] ? vga_arb_release+0x3a9/0x950
[ 226.963063][ C0] ? vga_arb_release+0x1e0/0x950
[ 226.963078][ C0] ? _raw_spin_lock+0x1b0/0x1b0
[ 226.963095][ C0] ? _raw_spin_lock+0x1b0/0x1b0
[ 226.963111][ C0] ? _raw_spin_lock+0x1b0/0x1b0
[ 226.963127][ C0]
[ 226.963131][ C0]
[ 226.963136][ C0] ? vga_arb_release+0x203/0x950
[ 226.963153][ C0] ? vga_arb_open+0x220/0x220
[ 226.963168][ C0] __fput+0x3fe/0x910
[ 226.963185][ C0] ____fput+0x15/0x20
[ 226.963200][ C0] task_work_run+0x129/0x190
[ 226.963216][ C0] exit_to_user_mode_loop+0xc4/0xe0
[ 226.963233][ C0] exit_to_user_mode_prepare+0x5a/0xa0
[ 226.963250][ C0] syscall_exit_to_user_mode+0x26/0x160
[ 226.963268][ C0] do_syscall_64+0x49/0xb0
[ 226.963286][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 226.963304][ C0] RIP: 0033:0x7f34584f98da
[ 226.963319][ C0] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 f3 7d 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 53 7e 02 00 8b 44 24
[ 226.963332][ C0] RSP: 002b:00007ffcb65e8d50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 226.963348][ C0] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f34584f98da
[ 226.963359][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[ 226.963368][ C0] RBP: 0000000000000032 R08: 0000001b31360000 R09: 00007f345861a05c
[ 226.963380][ C0] R10: 00007ffcb65e8ea0 R11: 0000000000000293 R12: 00007f345807e338
[ 226.963391][ C0] R13: ffffffffffffffff R14: 00007f345807e000 R15: 000000000000ab87
[ 226.963406][ C0]
[ 247.090483][ T31] INFO: task khugepaged:35 blocked for more than 184 seconds.
[ 247.097868][ T31] Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 247.106030][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 247.115034][ T31] task:khugepaged state:D stack:28240 pid: 35 ppid: 2 flags:0x00004000
[ 247.124366][ T31] Call Trace:
[ 247.127370][ T31]
[ 247.130244][ T31] __schedule+0xcbe/0x1580
[ 247.135122][ T31] ? __sched_text_start+0x8/0x8
[ 247.140168][ T31] ? check_preempt_wakeup+0x882/0xbe0
[ 247.146380][ T31] schedule+0x11f/0x1e0
[ 247.150587][ T31] schedule_timeout+0xa9/0x370
[ 247.155235][ T31] ? console_conditional_schedule+0x30/0x30
[ 247.161525][ T31] ? __prepare_to_swait+0xac/0x130
[ 247.166467][ T31] wait_for_common+0x285/0x420
[ 247.171326][ T31] ? wait_for_completion+0x20/0x20
[ 247.176342][ T31] ? _raw_spin_lock_irq+0xa5/0x1b0
[ 247.181943][ T31] ? wake_up_process+0x10/0x20
[ 247.186968][ T31] ? insert_work+0x299/0x320
[ 247.191803][ T31] wait_for_completion+0x18/0x20
[ 247.196757][ T31] __flush_work+0x5d7/0x720
[ 247.201386][ T31] ? __queue_work+0x94d/0xcd0
[ 247.206070][ T31] ? flush_work+0x20/0x20
[ 247.210228][ T31] ? move_linked_works+0x260/0x260
[ 247.215524][ T31] ? wq_worker_last_func+0x50/0x50
[ 247.220797][ T31] ? console_conditional_schedule+0x30/0x30
[ 247.226978][ T31] flush_work+0x17/0x20
[ 247.231273][ T31] __lru_add_drain_all+0x97d/0xa70
[ 247.236272][ T31] lru_add_drain_all+0x10/0x20
[ 247.241075][ T31] khugepaged+0x171/0x1070
[ 247.245371][ T31] ? start_stop_khugepaged+0x160/0x160
[ 247.250835][ T31] ? io_schedule+0x120/0x120
[ 247.255431][ T31] ? __kasan_check_write+0x14/0x20
[ 247.260643][ T31] ? io_schedule+0x120/0x120
[ 247.265229][ T31] ? _raw_spin_lock+0x1b0/0x1b0
[ 247.270658][ T31] ? __kthread_parkme+0xb2/0x200
[ 247.275468][ T31] kthread+0x421/0x510
[ 247.279803][ T31] ? start_stop_khugepaged+0x160/0x160
[ 247.285624][ T31] ? kthread_blkcg+0xd0/0xd0
[ 247.290035][ T31] ret_from_fork+0x1f/0x30
[ 247.294740][ T31]
[ 247.297707][ T31] NMI backtrace for cpu 1
[ 247.301848][ T31] CPU: 1 PID: 31 Comm: khungtaskd Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 247.312036][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 247.323288][ T31] Call Trace:
[ 247.326704][ T31]
[ 247.329738][ T31] dump_stack_lvl+0x151/0x1b7
[ 247.335432][ T31] ? io_uring_drop_tctx_refs+0x190/0x190
[ 247.341799][ T31] dump_stack+0x15/0x17
[ 247.346031][ T31] nmi_cpu_backtrace+0x2f7/0x300
[ 247.351286][ T31] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 247.357440][ T31] ? sched_show_task+0x3d8/0x620
[ 247.363024][ T31] ? __rcu_read_unlock+0xd0/0xd0
[ 247.368158][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 247.374250][ T31] nmi_trigger_cpumask_backtrace+0x15d/0x270
[ 247.380355][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 247.386930][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 247.392903][ T31] watchdog+0xdd7/0xf50
[ 247.397095][ T31] ? __kasan_check_write+0x14/0x20
[ 247.402282][ T31] ? hungtask_pm_notify+0x50/0x50
[ 247.407426][ T31] ? __kasan_check_read+0x11/0x20
[ 247.412271][ T31] ? __kthread_parkme+0xb2/0x200
[ 247.417046][ T31] kthread+0x421/0x510
[ 247.420960][ T31] ? hungtask_pm_notify+0x50/0x50
[ 247.426275][ T31] ? kthread_blkcg+0xd0/0xd0
[ 247.430774][ T31] ret_from_fork+0x1f/0x30
[ 247.435456][ T31]
[ 247.438547][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 247.443808][ C0] NMI backtrace for cpu 0
[ 247.443822][ C0] CPU: 0 PID: 1018 Comm: syz-executor.0 Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 247.443843][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 247.443861][ C0] RIP: 0010:_raw_spin_lock_irqsave+0x1a7/0x210
[ 247.443889][ C0] Code: 74 0c 48 c7 c7 10 54 2d 86 e8 65 3b ea fc 48 83 3d 4d a0 65 01 00 74 79 44 89 e6 4c 89 ef e8 80 28 8d fc 66 90 e9 70 ff ff ff <44> 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 1f ff ff ff 4c 89 e7 e8 b0
[ 247.443903][ C0] RSP: 0018:ffffc9000234fc40 EFLAGS: 00000002
[ 247.443919][ C0] RAX: 0000000000000004 RBX: 1ffff92000469f90 RCX: ffffffff86c95f03
[ 247.443932][ C0] RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000001
[ 247.443942][ C0] RBP: ffffc9000234fd08 R08: ffffffff82dea699 R09: 0000000000000003
[ 247.443954][ C0] R10: fffff52000469f90 R11: dffffc0000000001 R12: ffffc9000234fc80
[ 247.443967][ C0] R13: ffffffff86d23be0 R14: 1ffff92000469f8c R15: dffffc0000000000
[ 247.443987][ C0] FS: 00005555573ee480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 247.444002][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 247.444015][ C0] CR2: 00007f345805cd58 CR3: 0000000118c6f000 CR4: 00000000003506b0
[ 247.444030][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 247.444039][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 247.444050][ C0] Call Trace:
[ 247.444056][ C0]
[ 247.444062][ C0] ? show_regs+0x58/0x60
[ 247.444139][ C0] ? nmi_cpu_backtrace+0x29f/0x300
[ 247.444159][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 247.444179][ C0] ? _raw_spin_lock_irqsave+0x1a7/0x210
[ 247.444196][ C0] ? _raw_spin_lock_irqsave+0x1a7/0x210
[ 247.444213][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 247.444232][ C0] ? nmi_handle+0xa8/0x280
[ 247.444249][ C0] ? _raw_spin_lock_irqsave+0x1a7/0x210
[ 247.444266][ C0] ? _raw_spin_lock+0x1b0/0x1b0
[ 247.444282][ C0] ? default_do_nmi+0x69/0x160
[ 247.444298][ C0] ? exc_nmi+0xaf/0x120
[ 247.444312][ C0] ? end_repeat_nmi+0x16/0x31
[ 247.444330][ C0] ? vga_arb_release+0x3a9/0x950
[ 247.444389][ C0] ? _raw_spin_lock_irqsave+0x1a7/0x210
[ 247.444406][ C0] ? _raw_spin_lock_irqsave+0x1a7/0x210
[ 247.444424][ C0] ? _raw_spin_lock_irqsave+0x1a7/0x210
[ 247.444441][ C0]
[ 247.444446][ C0]
[ 247.444451][ C0] ? _raw_spin_lock+0x1b0/0x1b0
[ 247.444467][ C0] ? __fsnotify_parent+0x4b9/0x6c0
[ 247.444506][ C0] vga_arb_release+0x203/0x950
[ 247.444523][ C0] ? vga_arb_open+0x220/0x220
[ 247.444538][ C0] __fput+0x3fe/0x910
[ 247.444575][ C0] ____fput+0x15/0x20
[ 247.444589][ C0] task_work_run+0x129/0x190
[ 247.444607][ C0] exit_to_user_mode_loop+0xc4/0xe0
[ 247.444663][ C0] exit_to_user_mode_prepare+0x5a/0xa0
[ 247.444680][ C0] syscall_exit_to_user_mode+0x26/0x160
[ 247.444697][ C0] do_syscall_64+0x49/0xb0
[ 247.444715][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 247.444734][ C0] RIP: 0033:0x7f34584f98da
[ 247.444756][ C0] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 f3 7d 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 53 7e 02 00 8b 44 24
[ 247.444769][ C0] RSP: 002b:00007ffcb65e8d50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 247.444786][ C0] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f34584f98da
[ 247.444797][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[ 247.444807][ C0] RBP: 0000000000000032 R08: 0000001b31360000 R09: 00007f345861a05c
[ 247.444818][ C0] R10: 00007ffcb65e8ea0 R11: 0000000000000293 R12: 00007f345807e338
[ 247.444830][ C0] R13: ffffffffffffffff R14: 00007f345807e000 R15: 000000000000ab87
[ 247.444845][ C0]
[ 247.447421][ T30] audit: type=1400 audit(1701507162.903:158): avc: denied { remove_name } for pid=82 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[ 247.844830][ T30] audit: type=1400 audit(1701507162.903:159): avc: denied { rename } for pid=82 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1
[ 247.867235][ T30] audit: type=1400 audit(1701507162.903:160): avc: denied { create } for pid=82 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1
[ 268.210456][ T31] INFO: task khugepaged:35 blocked for more than 206 seconds.
[ 268.217767][ T31] Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 268.225696][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 268.234677][ T31] task:khugepaged state:D stack:28240 pid: 35 ppid: 2 flags:0x00004000
[ 268.244325][ T31] Call Trace:
[ 268.247577][ T31]
[ 268.250499][ T31] __schedule+0xcbe/0x1580
[ 268.255018][ T31] ? __sched_text_start+0x8/0x8
[ 268.260139][ T31] ? check_preempt_wakeup+0x882/0xbe0
[ 268.265957][ T31] schedule+0x11f/0x1e0
[ 268.270210][ T31] schedule_timeout+0xa9/0x370
[ 268.275290][ T31] ? console_conditional_schedule+0x30/0x30
[ 268.281464][ T31] ? __prepare_to_swait+0xac/0x130
[ 268.286556][ T31] wait_for_common+0x285/0x420
[ 268.291584][ T31] ? wait_for_completion+0x20/0x20
[ 268.296894][ T31] ? _raw_spin_lock_irq+0xa5/0x1b0
[ 268.303890][ T31] ? wake_up_process+0x10/0x20
[ 268.309182][ T31] ? insert_work+0x299/0x320
[ 268.314555][ T31] wait_for_completion+0x18/0x20
[ 268.319331][ T31] __flush_work+0x5d7/0x720
[ 268.324309][ T31] ? __queue_work+0x94d/0xcd0
[ 268.329193][ T31] ? flush_work+0x20/0x20
[ 268.334254][ T31] ? move_linked_works+0x260/0x260
[ 268.339456][ T31] ? wq_worker_last_func+0x50/0x50
[ 268.345055][ T31] ? console_conditional_schedule+0x30/0x30
[ 268.351009][ T31] flush_work+0x17/0x20
[ 268.355109][ T31] __lru_add_drain_all+0x97d/0xa70
[ 268.360611][ T31] lru_add_drain_all+0x10/0x20
[ 268.365215][ T31] khugepaged+0x171/0x1070
[ 268.369483][ T31] ? start_stop_khugepaged+0x160/0x160
[ 268.375419][ T31] ? io_schedule+0x120/0x120
[ 268.380099][ T31] ? __kasan_check_write+0x14/0x20
[ 268.385521][ T31] ? io_schedule+0x120/0x120
[ 268.390115][ T31] ? _raw_spin_lock+0x1b0/0x1b0
[ 268.395099][ T31] ? __kthread_parkme+0xb2/0x200
[ 268.400220][ T31] kthread+0x421/0x510
[ 268.404683][ T31] ? start_stop_khugepaged+0x160/0x160
[ 268.410248][ T31] ? kthread_blkcg+0xd0/0xd0
[ 268.415173][ T31] ret_from_fork+0x1f/0x30
[ 268.419783][ T31]
[ 268.423062][ T31] NMI backtrace for cpu 1
[ 268.427224][ T31] CPU: 1 PID: 31 Comm: khungtaskd Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 268.436936][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 268.448169][ T31] Call Trace:
[ 268.451253][ T31]
[ 268.454320][ T31] dump_stack_lvl+0x151/0x1b7
[ 268.459666][ T31] ? io_uring_drop_tctx_refs+0x190/0x190
[ 268.465231][ T31] dump_stack+0x15/0x17
[ 268.469470][ T31] nmi_cpu_backtrace+0x2f7/0x300
[ 268.474420][ T31] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 268.480685][ T31] ? sched_show_task+0x3d8/0x620
[ 268.485530][ T31] ? __rcu_read_unlock+0xd0/0xd0
[ 268.491031][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 268.497101][ T31] nmi_trigger_cpumask_backtrace+0x15d/0x270
[ 268.503373][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 268.509898][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 268.515668][ T31] watchdog+0xdd7/0xf50
[ 268.519708][ T31] ? __kasan_check_write+0x14/0x20
[ 268.524744][ T31] ? hungtask_pm_notify+0x50/0x50
[ 268.529609][ T31] ? __kasan_check_read+0x11/0x20
[ 268.534459][ T31] ? __kthread_parkme+0xb2/0x200
[ 268.539691][ T31] kthread+0x421/0x510
[ 268.543586][ T31] ? hungtask_pm_notify+0x50/0x50
[ 268.548548][ T31] ? kthread_blkcg+0xd0/0xd0
[ 268.553317][ T31] ret_from_fork+0x1f/0x30
[ 268.557745][ T31]
[ 268.560654][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 268.565833][ C0] NMI backtrace for cpu 0
[ 268.565842][ C0] CPU: 0 PID: 1018 Comm: syz-executor.0 Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 268.565862][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 268.565872][ C0] RIP: 0010:vga_arb_release+0x3d3/0x950
[ 268.565900][ C0] Code: 41 39 dc 75 07 e8 fd 56 91 fe eb 1a e8 f6 56 91 fe 48 c7 c7 c0 af 64 86 be 03 00 00 00 31 d2 31 c9 e8 c1 da 73 fe 48 8b 5d c0 <48> c7 c7 e0 3b d2 86 48 8b 75 88 e8 3d 11 e9 01 48 8b 45 90 42 0f
[ 268.565913][ C0] RSP: 0018:ffffc9000234fd18 EFLAGS: 00000093
[ 268.565929][ C0] RAX: ffffffff82dea6a3 RBX: ffff88811c76c424 RCX: ffff888117db13c0
[ 268.565942][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 268.565952][ C0] RBP: ffffc9000234fda8 R08: ffffffff82dea699 R09: 0000000000000003
[ 268.565964][ C0] R10: fffff52000469f90 R11: dffffc0000000001 R12: 0000000000000000
[ 268.565975][ C0] R13: ffffffff8664b000 R14: ffff88811c76c418 R15: dffffc0000000000
[ 268.565989][ C0] FS: 00005555573ee480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 268.566004][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 268.566016][ C0] CR2: 00007f345805cd58 CR3: 0000000118c6f000 CR4: 00000000003506b0
[ 268.566031][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 268.566041][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 268.566051][ C0] Call Trace:
[ 268.566056][ C0]
[ 268.566062][ C0] ? show_regs+0x58/0x60
[ 268.566080][ C0] ? nmi_cpu_backtrace+0x29f/0x300
[ 268.566100][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 268.566120][ C0] ? vga_arb_release+0x3d3/0x950
[ 268.566135][ C0] ? vga_arb_release+0x3d3/0x950
[ 268.566150][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 268.566169][ C0] ? nmi_handle+0xa8/0x280
[ 268.566186][ C0] ? vga_arb_release+0x3d3/0x950
[ 268.566201][ C0] ? _raw_spin_lock_irqsave+0x1a7/0x210
[ 268.566220][ C0] ? default_do_nmi+0x69/0x160
[ 268.566236][ C0] ? exc_nmi+0xaf/0x120
[ 268.566251][ C0] ? end_repeat_nmi+0x16/0x31
[ 268.566269][ C0] ? vga_arb_release+0x3a9/0x950
[ 268.566284][ C0] ? vga_arb_release+0x3b3/0x950
[ 268.566299][ C0] ? vga_arb_release+0x3d3/0x950
[ 268.566321][ C0] ? vga_arb_release+0x3d3/0x950
[ 268.566336][ C0] ? vga_arb_release+0x3d3/0x950
[ 268.566352][ C0]
[ 268.566356][ C0]
[ 268.566363][ C0] ? vga_arb_open+0x220/0x220
[ 268.566378][ C0] __fput+0x3fe/0x910
[ 268.566396][ C0] ____fput+0x15/0x20
[ 268.566410][ C0] task_work_run+0x129/0x190
[ 268.566427][ C0] exit_to_user_mode_loop+0xc4/0xe0
[ 268.566444][ C0] exit_to_user_mode_prepare+0x5a/0xa0
[ 268.566461][ C0] syscall_exit_to_user_mode+0x26/0x160
[ 268.566479][ C0] do_syscall_64+0x49/0xb0
[ 268.566528][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 268.566547][ C0] RIP: 0033:0x7f34584f98da
[ 268.566561][ C0] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 f3 7d 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 53 7e 02 00 8b 44 24
[ 268.566574][ C0] RSP: 002b:00007ffcb65e8d50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 268.566590][ C0] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f34584f98da
[ 268.566601][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[ 268.566610][ C0] RBP: 0000000000000032 R08: 0000001b31360000 R09: 00007f345861a05c
[ 268.566621][ C0] R10: 00007ffcb65e8ea0 R11: 0000000000000293 R12: 00007f345807e338
[ 268.566633][ C0] R13: ffffffffffffffff R14: 00007f345807e000 R15: 000000000000ab87
[ 268.566647][ C0]
[ 288.690393][ T31] INFO: task khugepaged:35 blocked for more than 226 seconds.
[ 288.697735][ T31] Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 288.706224][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 288.715094][ T31] task:khugepaged state:D stack:28240 pid: 35 ppid: 2 flags:0x00004000
[ 288.725569][ T31] Call Trace:
[ 288.728761][ T31]
[ 288.731702][ T31] __schedule+0xcbe/0x1580
[ 288.736140][ T31] ? __sched_text_start+0x8/0x8
[ 288.741211][ T31] ? check_preempt_wakeup+0x882/0xbe0
[ 288.746419][ T31] schedule+0x11f/0x1e0
[ 288.751093][ T31] schedule_timeout+0xa9/0x370
[ 288.755772][ T31] ? console_conditional_schedule+0x30/0x30
[ 288.761935][ T31] ? __prepare_to_swait+0xac/0x130
[ 288.767127][ T31] wait_for_common+0x285/0x420
[ 288.772115][ T31] ? wait_for_completion+0x20/0x20
[ 288.777138][ T31] ? _raw_spin_lock_irq+0xa5/0x1b0
[ 288.782442][ T31] ? wake_up_process+0x10/0x20
[ 288.787284][ T31] ? insert_work+0x299/0x320
[ 288.792261][ T31] wait_for_completion+0x18/0x20
[ 288.797066][ T31] __flush_work+0x5d7/0x720
[ 288.801766][ T31] ? __queue_work+0x94d/0xcd0
[ 288.806437][ T31] ? flush_work+0x20/0x20
[ 288.810949][ T31] ? move_linked_works+0x260/0x260
[ 288.816056][ T31] ? wq_worker_last_func+0x50/0x50
[ 288.821348][ T31] ? console_conditional_schedule+0x30/0x30
[ 288.827508][ T31] flush_work+0x17/0x20
[ 288.831653][ T31] __lru_add_drain_all+0x97d/0xa70
[ 288.836857][ T31] lru_add_drain_all+0x10/0x20
[ 288.841752][ T31] khugepaged+0x171/0x1070
[ 288.846083][ T31] ? start_stop_khugepaged+0x160/0x160
[ 288.851914][ T31] ? io_schedule+0x120/0x120
[ 288.856513][ T31] ? __kasan_check_write+0x14/0x20
[ 288.861916][ T31] ? io_schedule+0x120/0x120
[ 288.866428][ T31] ? _raw_spin_lock+0x1b0/0x1b0
[ 288.871572][ T31] ? __kthread_parkme+0xb2/0x200
[ 288.876682][ T31] kthread+0x421/0x510
[ 288.881098][ T31] ? start_stop_khugepaged+0x160/0x160
[ 288.886486][ T31] ? kthread_blkcg+0xd0/0xd0
[ 288.892217][ T31] ret_from_fork+0x1f/0x30
[ 288.896490][ T31]
[ 288.899547][ T31] NMI backtrace for cpu 1
[ 288.903845][ T31] CPU: 1 PID: 31 Comm: khungtaskd Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 288.913912][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 288.923981][ T31] Call Trace:
[ 288.929000][ T31]
[ 288.932037][ T31] dump_stack_lvl+0x151/0x1b7
[ 288.936555][ T31] ? io_uring_drop_tctx_refs+0x190/0x190
[ 288.942278][ T31] dump_stack+0x15/0x17
[ 288.946533][ T31] nmi_cpu_backtrace+0x2f7/0x300
[ 288.951299][ T31] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 288.957467][ T31] ? sched_show_task+0x3d8/0x620
[ 288.962275][ T31] ? __rcu_read_unlock+0xd0/0xd0
[ 288.967013][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 288.972913][ T31] nmi_trigger_cpumask_backtrace+0x15d/0x270
[ 288.978731][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 288.984801][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 288.990566][ T31] watchdog+0xdd7/0xf50
[ 288.994781][ T31] ? __kasan_check_write+0x14/0x20
[ 289.000180][ T31] ? hungtask_pm_notify+0x50/0x50
[ 289.005024][ T31] ? __kasan_check_read+0x11/0x20
[ 289.010068][ T31] ? __kthread_parkme+0xb2/0x200
[ 289.014924][ T31] kthread+0x421/0x510
[ 289.018940][ T31] ? hungtask_pm_notify+0x50/0x50
[ 289.024387][ T31] ? kthread_blkcg+0xd0/0xd0
[ 289.028807][ T31] ret_from_fork+0x1f/0x30
[ 289.033059][ T31]
[ 289.036325][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 289.042034][ C0] NMI backtrace for cpu 0
[ 289.042043][ C0] CPU: 0 PID: 1018 Comm: syz-executor.0 Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 289.042062][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 289.042072][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x5c/0x80
[ 289.042096][ C0] Code: ea fc 48 83 3d cc 9b 65 01 00 74 35 48 89 df e8 2e 16 8d fc 66 90 41 f7 c6 00 02 00 00 74 01 fb bf 01 00 00 00 e8 74 5c 84 fc <65> 8b 05 15 b5 3a 7b 85 c0 74 05 5b 41 5e 5d c3 e8 e3 c8 38 fc eb
[ 289.042110][ C0] RSP: 0018:ffffc9000234fcf8 EFLAGS: 00000093
[ 289.042126][ C0] RAX: 0000000080000002 RBX: ffffffff86d23be0 RCX: 0000000000000002
[ 289.042138][ C0] RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000001
[ 289.042148][ C0] RBP: ffffc9000234fd08 R08: ffffffff82dea699 R09: 0000000000000003
[ 289.042160][ C0] R10: fffff52000469f90 R11: dffffc0000000001 R12: 0000000000000000
[ 289.042172][ C0] R13: ffffffff8664b000 R14: 0000000000000046 R15: dffffc0000000000
[ 289.042185][ C0] FS: 00005555573ee480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 289.042200][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 289.042212][ C0] CR2: 00007f345805cd58 CR3: 0000000118c6f000 CR4: 00000000003506b0
[ 289.042227][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 289.042237][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 289.042248][ C0] Call Trace:
[ 289.042254][ C0]
[ 289.042259][ C0] ? show_regs+0x58/0x60
[ 289.042277][ C0] ? nmi_cpu_backtrace+0x29f/0x300
[ 289.042297][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 289.042316][ C0] ? _raw_spin_unlock_irqrestore+0x5c/0x80
[ 289.042333][ C0] ? _raw_spin_unlock_irqrestore+0x5c/0x80
[ 289.042351][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 289.042371][ C0] ? nmi_handle+0xa8/0x280
[ 289.042388][ C0] ? _raw_spin_unlock_irqrestore+0x5c/0x80
[ 289.042405][ C0] ? vga_arb_release+0x3d3/0x950
[ 289.042422][ C0] ? default_do_nmi+0x69/0x160
[ 289.042438][ C0] ? exc_nmi+0xaf/0x120
[ 289.042453][ C0] ? end_repeat_nmi+0x16/0x31
[ 289.042471][ C0] ? vga_arb_release+0x3a9/0x950
[ 289.042487][ C0] ? _raw_spin_unlock_irqrestore+0x5c/0x80
[ 289.042504][ C0] ? _raw_spin_unlock_irqrestore+0x5c/0x80
[ 289.042522][ C0] ? _raw_spin_unlock_irqrestore+0x5c/0x80
[ 289.042540][ C0]
[ 289.042545][ C0]
[ 289.042550][ C0] vga_arb_release+0x3e3/0x950
[ 289.042567][ C0] ? vga_arb_open+0x220/0x220
[ 289.042582][ C0] __fput+0x3fe/0x910
[ 289.042601][ C0] ____fput+0x15/0x20
[ 289.042615][ C0] task_work_run+0x129/0x190
[ 289.042631][ C0] exit_to_user_mode_loop+0xc4/0xe0
[ 289.042650][ C0] exit_to_user_mode_prepare+0x5a/0xa0
[ 289.042666][ C0] syscall_exit_to_user_mode+0x26/0x160
[ 289.042683][ C0] do_syscall_64+0x49/0xb0
[ 289.042702][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 289.042721][ C0] RIP: 0033:0x7f34584f98da
[ 289.042741][ C0] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 f3 7d 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 53 7e 02 00 8b 44 24
[ 289.042754][ C0] RSP: 002b:00007ffcb65e8d50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 289.042770][ C0] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f34584f98da
[ 289.042781][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[ 289.042790][ C0] RBP: 0000000000000032 R08: 0000001b31360000 R09: 00007f345861a05c
[ 289.042802][ C0] R10: 00007ffcb65e8ea0 R11: 0000000000000293 R12: 00007f345807e338
[ 289.042813][ C0] R13: ffffffffffffffff R14: 00007f345807e000 R15: 000000000000ab87
[ 289.042828][ C0]
[ 309.170382][ T31] INFO: task khugepaged:35 blocked for more than 247 seconds.
[ 309.177775][ T31] Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 309.185723][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 309.194655][ T31] task:khugepaged state:D stack:28240 pid: 35 ppid: 2 flags:0x00004000
[ 309.203954][ T31] Call Trace:
[ 309.207055][ T31]
[ 309.209844][ T31] __schedule+0xcbe/0x1580
[ 309.214413][ T31] ? __sched_text_start+0x8/0x8
[ 309.219507][ T31] ? check_preempt_wakeup+0x882/0xbe0
[ 309.224979][ T31] schedule+0x11f/0x1e0
[ 309.228964][ T31] schedule_timeout+0xa9/0x370
[ 309.233713][ T31] ? console_conditional_schedule+0x30/0x30
[ 309.239427][ T31] ? __prepare_to_swait+0xac/0x130
[ 309.244561][ T31] wait_for_common+0x285/0x420
[ 309.249232][ T31] ? wait_for_completion+0x20/0x20
[ 309.254389][ T31] ? _raw_spin_lock_irq+0xa5/0x1b0
[ 309.259936][ T31] ? wake_up_process+0x10/0x20
[ 309.264712][ T31] ? insert_work+0x299/0x320
[ 309.269129][ T31] wait_for_completion+0x18/0x20
[ 309.274399][ T31] __flush_work+0x5d7/0x720
[ 309.278725][ T31] ? __queue_work+0x94d/0xcd0
[ 309.283431][ T31] ? flush_work+0x20/0x20
[ 309.287583][ T31] ? move_linked_works+0x260/0x260
[ 309.292694][ T31] ? wq_worker_last_func+0x50/0x50
[ 309.298156][ T31] ? console_conditional_schedule+0x30/0x30
[ 309.304126][ T31] flush_work+0x17/0x20
[ 309.308489][ T31] __lru_add_drain_all+0x97d/0xa70
[ 309.313879][ T31] lru_add_drain_all+0x10/0x20
[ 309.318461][ T31] khugepaged+0x171/0x1070
[ 309.323027][ T31] ? start_stop_khugepaged+0x160/0x160
[ 309.328722][ T31] ? io_schedule+0x120/0x120
[ 309.333391][ T31] ? __kasan_check_write+0x14/0x20
[ 309.338798][ T31] ? io_schedule+0x120/0x120
[ 309.343501][ T31] ? _raw_spin_lock+0x1b0/0x1b0
[ 309.348263][ T31] ? __kthread_parkme+0xb2/0x200
[ 309.353638][ T31] kthread+0x421/0x510
[ 309.357825][ T31] ? start_stop_khugepaged+0x160/0x160
[ 309.363336][ T31] ? kthread_blkcg+0xd0/0xd0
[ 309.368009][ T31] ret_from_fork+0x1f/0x30
[ 309.373427][ T31]
[ 309.376299][ T31] NMI backtrace for cpu 1
[ 309.380623][ T31] CPU: 1 PID: 31 Comm: khungtaskd Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 309.390522][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 309.400617][ T31] Call Trace:
[ 309.403756][ T31]
[ 309.406753][ T31] dump_stack_lvl+0x151/0x1b7
[ 309.411258][ T31] ? io_uring_drop_tctx_refs+0x190/0x190
[ 309.416729][ T31] dump_stack+0x15/0x17
[ 309.421080][ T31] nmi_cpu_backtrace+0x2f7/0x300
[ 309.426016][ T31] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 309.432012][ T31] ? sched_show_task+0x3d8/0x620
[ 309.436858][ T31] ? __rcu_read_unlock+0xd0/0xd0
[ 309.441653][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 309.447624][ T31] nmi_trigger_cpumask_backtrace+0x15d/0x270
[ 309.453537][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 309.459885][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 309.465780][ T31] watchdog+0xdd7/0xf50
[ 309.470137][ T31] ? __kasan_check_write+0x14/0x20
[ 309.475540][ T31] ? hungtask_pm_notify+0x50/0x50
[ 309.480856][ T31] ? __kasan_check_read+0x11/0x20
[ 309.485818][ T31] ? __kthread_parkme+0xb2/0x200
[ 309.491310][ T31] kthread+0x421/0x510
[ 309.495500][ T31] ? hungtask_pm_notify+0x50/0x50
[ 309.500597][ T31] ? kthread_blkcg+0xd0/0xd0
[ 309.505369][ T31] ret_from_fork+0x1f/0x30
[ 309.509629][ T31]
[ 309.512564][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 309.517736][ C0] NMI backtrace for cpu 0
[ 309.517745][ C0] CPU: 0 PID: 1018 Comm: syz-executor.0 Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 309.517764][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 309.517774][ C0] RIP: 0010:preempt_count_sub+0x43/0x160
[ 309.517798][ C0] Code: 00 00 fc ff df 42 0f b6 04 30 84 c0 0f 85 c1 00 00 00 83 3d 6e 4a 7d 05 00 75 22 65 8b 05 6d 58 b6 7e 89 c1 81 e1 ff ff ff 7f <39> d9 7c 24 81 fb fe 00 00 00 77 07 0f b6 c0 85 c0 74 56 65 8b 05
[ 309.517812][ C0] RSP: 0018:ffffc9000234fcd8 EFLAGS: 00000002
[ 309.517828][ C0] RAX: 0000000080000002 RBX: 0000000000000001 RCX: 0000000000000002
[ 309.517839][ C0] RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000001
[ 309.517849][ C0] RBP: ffffc9000234fce8 R08: ffffffff82dea699 R09: 0000000000000003
[ 309.517861][ C0] R10: fffff52000469f90 R11: dffffc0000000001 R12: 0000000000000000
[ 309.517873][ C0] R13: ffffffff8664b000 R14: dffffc0000000000 R15: dffffc0000000000
[ 309.517886][ C0] FS: 00005555573ee480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 309.517901][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 309.517913][ C0] CR2: 00007f345805cd58 CR3: 0000000118c6f000 CR4: 00000000003506b0
[ 309.517928][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 309.517938][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 309.517948][ C0] Call Trace:
[ 309.517953][ C0]
[ 309.517959][ C0] ? show_regs+0x58/0x60
[ 309.517977][ C0] ? nmi_cpu_backtrace+0x29f/0x300
[ 309.518002][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 309.518022][ C0] ? preempt_count_sub+0x43/0x160
[ 309.518038][ C0] ? preempt_count_sub+0x43/0x160
[ 309.518055][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 309.518074][ C0] ? nmi_handle+0xa8/0x280
[ 309.518091][ C0] ? preempt_count_sub+0x43/0x160
[ 309.518107][ C0] ? _raw_spin_unlock_irqrestore+0x5c/0x80
[ 309.518126][ C0] ? default_do_nmi+0x69/0x160
[ 309.518142][ C0] ? exc_nmi+0xaf/0x120
[ 309.518156][ C0] ? end_repeat_nmi+0x16/0x31
[ 309.518174][ C0] ? vga_arb_release+0x3a9/0x950
[ 309.518192][ C0] ? preempt_count_sub+0x43/0x160
[ 309.518208][ C0] ? preempt_count_sub+0x43/0x160
[ 309.518225][ C0] ? preempt_count_sub+0x43/0x160
[ 309.518242][ C0]
[ 309.518246][ C0]
[ 309.518251][ C0] _raw_spin_unlock_irqrestore+0x5c/0x80
[ 309.518269][ C0] vga_arb_release+0x3e3/0x950
[ 309.518286][ C0] ? vga_arb_open+0x220/0x220
[ 309.518301][ C0] __fput+0x3fe/0x910
[ 309.518319][ C0] ____fput+0x15/0x20
[ 309.518333][ C0] task_work_run+0x129/0x190
[ 309.518350][ C0] exit_to_user_mode_loop+0xc4/0xe0
[ 309.518368][ C0] exit_to_user_mode_prepare+0x5a/0xa0
[ 309.518384][ C0] syscall_exit_to_user_mode+0x26/0x160
[ 309.518401][ C0] do_syscall_64+0x49/0xb0
[ 309.518420][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 309.518439][ C0] RIP: 0033:0x7f34584f98da
[ 309.518453][ C0] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 f3 7d 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 53 7e 02 00 8b 44 24
[ 309.518466][ C0] RSP: 002b:00007ffcb65e8d50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 309.518482][ C0] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f34584f98da
[ 309.518493][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[ 309.518503][ C0] RBP: 0000000000000032 R08: 0000001b31360000 R09: 00007f345861a05c
[ 309.518514][ C0] R10: 00007ffcb65e8ea0 R11: 0000000000000293 R12: 00007f345807e338
[ 309.518525][ C0] R13: ffffffffffffffff R14: 00007f345807e000 R15: 000000000000ab87
[ 309.518540][ C0]
[ 329.650377][ T31] INFO: task khugepaged:35 blocked for more than 267 seconds.
[ 329.657761][ T31] Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 329.665596][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 329.674206][ T31] task:khugepaged state:D stack:28240 pid: 35 ppid: 2 flags:0x00004000
[ 329.683352][ T31] Call Trace:
[ 329.686441][ T31]
[ 329.689230][ T31] __schedule+0xcbe/0x1580
[ 329.693852][ T31] ? __sched_text_start+0x8/0x8
[ 329.698613][ T31] ? check_preempt_wakeup+0x882/0xbe0
[ 329.704319][ T31] schedule+0x11f/0x1e0
[ 329.708469][ T31] schedule_timeout+0xa9/0x370
[ 329.713413][ T31] ? console_conditional_schedule+0x30/0x30
[ 329.719210][ T31] ? __prepare_to_swait+0xac/0x130
[ 329.724324][ T31] wait_for_common+0x285/0x420
[ 329.729096][ T31] ? wait_for_completion+0x20/0x20
[ 329.734222][ T31] ? _raw_spin_lock_irq+0xa5/0x1b0
[ 329.739166][ T31] ? wake_up_process+0x10/0x20
[ 329.743934][ T31] ? insert_work+0x299/0x320
[ 329.748343][ T31] wait_for_completion+0x18/0x20
[ 329.753666][ T31] __flush_work+0x5d7/0x720
[ 329.758101][ T31] ? __queue_work+0x94d/0xcd0
[ 329.762879][ T31] ? flush_work+0x20/0x20
[ 329.767118][ T31] ? move_linked_works+0x260/0x260
[ 329.772316][ T31] ? wq_worker_last_func+0x50/0x50
[ 329.777425][ T31] ? console_conditional_schedule+0x30/0x30
[ 329.783311][ T31] flush_work+0x17/0x20
[ 329.787371][ T31] __lru_add_drain_all+0x97d/0xa70
[ 329.792564][ T31] lru_add_drain_all+0x10/0x20
[ 329.797238][ T31] khugepaged+0x171/0x1070
[ 329.801881][ T31] ? start_stop_khugepaged+0x160/0x160
[ 329.807047][ T31] ? io_schedule+0x120/0x120
[ 329.811682][ T31] ? __kasan_check_write+0x14/0x20
[ 329.816612][ T31] ? io_schedule+0x120/0x120
[ 329.821359][ T31] ? _raw_spin_lock+0x1b0/0x1b0
[ 329.826043][ T31] ? __kthread_parkme+0xb2/0x200
[ 329.830970][ T31] kthread+0x421/0x510
[ 329.834719][ T31] ? start_stop_khugepaged+0x160/0x160
[ 329.840018][ T31] ? kthread_blkcg+0xd0/0xd0
[ 329.844649][ T31] ret_from_fork+0x1f/0x30
[ 329.848939][ T31]
[ 329.852258][ T31] NMI backtrace for cpu 1
[ 329.856409][ T31] CPU: 1 PID: 31 Comm: khungtaskd Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 329.866116][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 329.876272][ T31] Call Trace:
[ 329.879404][ T31]
[ 329.882174][ T31] dump_stack_lvl+0x151/0x1b7
[ 329.886706][ T31] ? io_uring_drop_tctx_refs+0x190/0x190
[ 329.892791][ T31] dump_stack+0x15/0x17
[ 329.896854][ T31] nmi_cpu_backtrace+0x2f7/0x300
[ 329.901748][ T31] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 329.907794][ T31] ? sched_show_task+0x3d8/0x620
[ 329.912764][ T31] ? __rcu_read_unlock+0xd0/0xd0
[ 329.917720][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 329.923590][ T31] nmi_trigger_cpumask_backtrace+0x15d/0x270
[ 329.929405][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 329.935303][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 329.941036][ T31] watchdog+0xdd7/0xf50
[ 329.945026][ T31] ? __kasan_check_write+0x14/0x20
[ 329.949978][ T31] ? hungtask_pm_notify+0x50/0x50
[ 329.954943][ T31] ? __kasan_check_read+0x11/0x20
[ 329.959807][ T31] ? __kthread_parkme+0xb2/0x200
[ 329.964754][ T31] kthread+0x421/0x510
[ 329.968658][ T31] ? hungtask_pm_notify+0x50/0x50
[ 329.973524][ T31] ? kthread_blkcg+0xd0/0xd0
[ 329.977966][ T31] ret_from_fork+0x1f/0x30
[ 329.982375][ T31]
[ 329.985643][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 329.991093][ C0] NMI backtrace for cpu 0
[ 329.991103][ C0] CPU: 0 PID: 1018 Comm: syz-executor.0 Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 329.991121][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 329.991131][ C0] RIP: 0010:__raw_callee_save___pv_queued_spin_unlock+0x10/0x17
[ 329.991218][ C0] Code: 41 51 41 52 41 53 e8 cb 0a 00 00 41 5b 41 5a 41 59 41 58 5f 5e 5a 59 5d c3 90 55 48 89 e5 52 b8 01 00 00 00 31 d2 f0 0f b0 17 <3c> 01 75 03 5a 5d c3 56 0f b6 f0 e8 bc ff ff ff 5e 5a 5d c3 0f 1f
[ 329.991232][ C0] RSP: 0018:ffffc9000234fce0 EFLAGS: 00000046
[ 329.991248][ C0] RAX: 0000000000000001 RBX: ffffffff86d23be0 RCX: dffffc0000000000
[ 329.991260][ C0] RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffffffff86d23be0
[ 329.991272][ C0] RBP: ffffc9000234fce8 R08: ffffffff82dea699 R09: 0000000000000003
[ 329.991283][ C0] R10: fffff52000469f90 R11: dffffc0000000001 R12: 0000000000000000
[ 329.991295][ C0] R13: ffffffff8664b000 R14: 0000000000000046 R15: dffffc0000000000
[ 329.991307][ C0] FS: 00005555573ee480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 329.991322][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 329.991334][ C0] CR2: 00007f345805cd58 CR3: 0000000118c6f000 CR4: 00000000003506b0
[ 329.991349][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 329.991358][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 329.991369][ C0] Call Trace:
[ 329.991374][ C0]
[ 329.991379][ C0] ? show_regs+0x58/0x60
[ 329.991397][ C0] ? nmi_cpu_backtrace+0x29f/0x300
[ 329.991416][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 329.991435][ C0] ? __raw_callee_save___pv_queued_spin_unlock+0x10/0x17
[ 329.991455][ C0] ? __raw_callee_save___pv_queued_spin_unlock+0x10/0x17
[ 329.991475][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 329.991493][ C0] ? nmi_handle+0xa8/0x280
[ 329.991510][ C0] ? __raw_callee_save___pv_queued_spin_unlock+0x10/0x17
[ 329.991529][ C0] ? preempt_count_sub+0x43/0x160
[ 329.991554][ C0] ? default_do_nmi+0x69/0x160
[ 329.991570][ C0] ? exc_nmi+0xaf/0x120
[ 329.991584][ C0] ? end_repeat_nmi+0x16/0x31
[ 329.991604][ C0] ? vga_arb_release+0x3a9/0x950
[ 329.991622][ C0] ? __raw_callee_save___pv_queued_spin_unlock+0x10/0x17
[ 329.991642][ C0] ? __raw_callee_save___pv_queued_spin_unlock+0x10/0x17
[ 329.991662][ C0] ? __raw_callee_save___pv_queued_spin_unlock+0x10/0x17
[ 329.991682][ C0]
[ 329.991686][ C0]
[ 329.991691][ C0] _raw_spin_unlock_irqrestore+0x46/0x80
[ 329.991709][ C0] vga_arb_release+0x3e3/0x950
[ 329.991727][ C0] ? vga_arb_open+0x220/0x220
[ 329.991742][ C0] __fput+0x3fe/0x910
[ 329.991760][ C0] ____fput+0x15/0x20
[ 329.991774][ C0] task_work_run+0x129/0x190
[ 329.991791][ C0] exit_to_user_mode_loop+0xc4/0xe0
[ 329.991808][ C0] exit_to_user_mode_prepare+0x5a/0xa0
[ 329.991825][ C0] syscall_exit_to_user_mode+0x26/0x160
[ 329.991843][ C0] do_syscall_64+0x49/0xb0
[ 329.991862][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 329.991880][ C0] RIP: 0033:0x7f34584f98da
[ 329.991895][ C0] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 f3 7d 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 53 7e 02 00 8b 44 24
[ 329.991908][ C0] RSP: 002b:00007ffcb65e8d50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 329.991924][ C0] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f34584f98da
[ 329.991935][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[ 329.991944][ C0] RBP: 0000000000000032 R08: 0000001b31360000 R09: 00007f345861a05c
[ 329.991956][ C0] R10: 00007ffcb65e8ea0 R11: 0000000000000293 R12: 00007f345807e338
[ 329.991967][ C0] R13: ffffffffffffffff R14: 00007f345807e000 R15: 000000000000ab87
[ 329.991982][ C0]
[ 350.130422][ T31] INFO: task khugepaged:35 blocked for more than 288 seconds.
[ 350.137892][ T31] Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 350.145825][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 350.154851][ T31] task:khugepaged state:D stack:28240 pid: 35 ppid: 2 flags:0x00004000
[ 350.164812][ T31] Call Trace:
[ 350.167991][ T31]
[ 350.171063][ T31] __schedule+0xcbe/0x1580
[ 350.175518][ T31] ? __sched_text_start+0x8/0x8
[ 350.180692][ T31] ? check_preempt_wakeup+0x882/0xbe0
[ 350.185903][ T31] schedule+0x11f/0x1e0
[ 350.189890][ T31] schedule_timeout+0xa9/0x370
[ 350.194752][ T31] ? console_conditional_schedule+0x30/0x30
[ 350.200725][ T31] ? __prepare_to_swait+0xac/0x130
[ 350.205702][ T31] wait_for_common+0x285/0x420
[ 350.210788][ T31] ? wait_for_completion+0x20/0x20
[ 350.216000][ T31] ? _raw_spin_lock_irq+0xa5/0x1b0
[ 350.221375][ T31] ? wake_up_process+0x10/0x20
[ 350.225965][ T31] ? insert_work+0x299/0x320
[ 350.230752][ T31] wait_for_completion+0x18/0x20
[ 350.235707][ T31] __flush_work+0x5d7/0x720
[ 350.240022][ T31] ? __queue_work+0x94d/0xcd0
[ 350.244798][ T31] ? flush_work+0x20/0x20
[ 350.248955][ T31] ? move_linked_works+0x260/0x260
[ 350.254369][ T31] ? wq_worker_last_func+0x50/0x50
[ 350.259474][ T31] ? console_conditional_schedule+0x30/0x30
[ 350.265925][ T31] flush_work+0x17/0x20
[ 350.269988][ T31] __lru_add_drain_all+0x97d/0xa70
[ 350.275187][ T31] lru_add_drain_all+0x10/0x20
[ 350.279951][ T31] khugepaged+0x171/0x1070
[ 350.284537][ T31] ? start_stop_khugepaged+0x160/0x160
[ 350.290174][ T31] ? io_schedule+0x120/0x120
[ 350.295006][ T31] ? __kasan_check_write+0x14/0x20
[ 350.300173][ T31] ? io_schedule+0x120/0x120
[ 350.304755][ T31] ? _raw_spin_lock+0x1b0/0x1b0
[ 350.309426][ T31] ? __kthread_parkme+0xb2/0x200
[ 350.314358][ T31] kthread+0x421/0x510
[ 350.318344][ T31] ? start_stop_khugepaged+0x160/0x160
[ 350.323887][ T31] ? kthread_blkcg+0xd0/0xd0
[ 350.328761][ T31] ret_from_fork+0x1f/0x30
[ 350.333286][ T31]
[ 350.336144][ T31] NMI backtrace for cpu 1
[ 350.340387][ T31] CPU: 1 PID: 31 Comm: khungtaskd Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 350.350194][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 350.361031][ T31] Call Trace:
[ 350.364160][ T31]
[ 350.366935][ T31] dump_stack_lvl+0x151/0x1b7
[ 350.371968][ T31] ? io_uring_drop_tctx_refs+0x190/0x190
[ 350.377533][ T31] dump_stack+0x15/0x17
[ 350.381543][ T31] nmi_cpu_backtrace+0x2f7/0x300
[ 350.386383][ T31] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 350.392620][ T31] ? sched_show_task+0x3d8/0x620
[ 350.397433][ T31] ? __rcu_read_unlock+0xd0/0xd0
[ 350.402431][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 350.408528][ T31] nmi_trigger_cpumask_backtrace+0x15d/0x270
[ 350.414867][ T31] ? arch_trigger_cpumask_backtrace+0x20/0x20
[ 350.421302][ T31] arch_trigger_cpumask_backtrace+0x10/0x20
[ 350.427332][ T31] watchdog+0xdd7/0xf50
[ 350.431538][ T31] ? __kasan_check_write+0x14/0x20
[ 350.436661][ T31] ? hungtask_pm_notify+0x50/0x50
[ 350.441777][ T31] ? __kasan_check_read+0x11/0x20
[ 350.446725][ T31] ? __kthread_parkme+0xb2/0x200
[ 350.451670][ T31] kthread+0x421/0x510
[ 350.455672][ T31] ? hungtask_pm_notify+0x50/0x50
[ 350.460707][ T31] ? kthread_blkcg+0xd0/0xd0
[ 350.465132][ T31] ret_from_fork+0x1f/0x30
[ 350.469387][ T31]
[ 350.472392][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 350.477466][ C0] NMI backtrace for cpu 0
[ 350.477478][ C0] CPU: 0 PID: 1018 Comm: syz-executor.0 Not tainted 5.15.138-syzkaller-1068884-geb99a642b7e6 #0
[ 350.477498][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
[ 350.477508][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x60
[ 350.477534][ C0] Code: d0 6f 92 7e 65 8b 15 d1 6f 92 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 5c 0b 00 00 00 74 2c 8b 91 38 0b 00 00 <83> fa 02 75 21 48 8b 91 40 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 3c
[ 350.477548][ C0] RSP: 0018:ffffc9000234fd08 EFLAGS: 00000046
[ 350.477564][ C0] RAX: ffffffff82dea6a3 RBX: 0000000000000000 RCX: ffff888117db13c0
[ 350.477576][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 350.477587][ C0] RBP: ffffc9000234fd08 R08: ffffffff82dea699 R09: 0000000000000003
[ 350.477599][ C0] R10: fffff52000469f90 R11: dffffc0000000001 R12: 0000000000000000
[ 350.477611][ C0] R13: ffffffff8664b000 R14: ffff88811c76c418 R15: dffffc0000000000
[ 350.477624][ C0] FS: 00005555573ee480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 350.477645][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 350.477663][ C0] CR2: 00007f345805cd58 CR3: 0000000118c6f000 CR4: 00000000003506b0
[ 350.477678][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 350.477688][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 350.477698][ C0] Call Trace:
[ 350.477703][ C0]
[ 350.477710][ C0] ? show_regs+0x58/0x60
[ 350.477728][ C0] ? nmi_cpu_backtrace+0x29f/0x300
[ 350.477748][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270
[ 350.477768][ C0] ? __sanitizer_cov_trace_pc+0x36/0x60
[ 350.477786][ C0] ? __sanitizer_cov_trace_pc+0x36/0x60
[ 350.477804][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20
[ 350.477823][ C0] ? nmi_handle+0xa8/0x280
[ 350.477840][ C0] ? __sanitizer_cov_trace_pc+0x36/0x60
[ 350.477858][ C0] ? __raw_callee_save___pv_queued_spin_unlock+0x10/0x17
[ 350.477879][ C0] ? default_do_nmi+0x69/0x160
[ 350.477896][ C0] ? exc_nmi+0xaf/0x120
[ 350.477910][ C0] ? end_repeat_nmi+0x16/0x31
[ 350.477929][ C0] ? vga_arb_release+0x3a9/0x950
[ 350.477946][ C0] ? vga_arb_release+0x3b3/0x950
[ 350.477962][ C0] ? __sanitizer_cov_trace_pc+0x36/0x60
[ 350.477980][ C0] ? __sanitizer_cov_trace_pc+0x36/0x60
[ 350.477998][ C0] ? __sanitizer_cov_trace_pc+0x36/0x60
[ 350.478016][ C0]
[ 350.478021][ C0]
[ 350.478026][ C0] vga_arb_release+0x3b3/0x950
[ 350.478043][ C0] ? vga_arb_open+0x220/0x220
[ 350.478058][ C0] __fput+0x3fe/0x910
[ 350.478076][ C0] ____fput+0x15/0x20
[ 350.478090][ C0] task_work_run+0x129/0x190
[ 350.478107][ C0] exit_to_user_mode_loop+0xc4/0xe0
[ 350.478124][ C0] exit_to_user_mode_prepare+0x5a/0xa0
[ 350.478141][ C0] syscall_exit_to_user_mode+0x26/0x160
[ 350.478159][ C0] do_syscall_64+0x49/0xb0
[ 350.478178][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 350.478197][ C0] RIP: 0033:0x7f34584f98da
[ 350.478211][ C0] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 f3 7d 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 53 7e 02 00 8b 44 24
[ 350.478224][ C0] RSP: 002b:00007ffcb65e8d50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 350.478241][ C0] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f34584f98da
[ 350.478251][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[ 350.478261][ C0] RBP: 0000000000000032 R08: 0000001b31360000 R09: 00007f345861a05c
[ 350.478272][ C0] R10: 00007ffcb65e8ea0 R11: 0000000000000293 R12: 00007f345807e338
[ 350.478283][ C0] R13: ffffffffffffffff R14: 00007f345807e000 R15: 000000000000ab87
[ 350.478298][ C0]