Warning: Permanently added '10.128.0.219' (ED25519) to the list of known hosts. 2026/10/02 22:07:05 parsed 1 programs 2026/10/02 22:07:05 serving rpc on tcp://42187 [ 142.645309][ T5642] cgroup: Unknown subsys name 'net' [ 142.790366][ T5642] cgroup: Unknown subsys name 'cpuset' [ 142.800011][ T5642] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 144.293822][ T5642] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 147.486474][ T5649] bridge0: port 1(bridge_slave_0) entered blocking state [ 147.487069][ T5649] bridge0: port 1(bridge_slave_0) entered disabled state [ 147.487288][ T5649] bridge_slave_0: entered allmulticast mode [ 147.489672][ T5649] bridge_slave_0: entered promiscuous mode [ 147.494483][ T5649] bridge0: port 2(bridge_slave_1) entered blocking state [ 147.494576][ T5649] bridge0: port 2(bridge_slave_1) entered disabled state [ 147.494933][ T5649] bridge_slave_1: entered allmulticast mode [ 147.496575][ T5649] bridge_slave_1: entered promiscuous mode [ 147.532049][ T5649] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 147.535663][ T5649] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 147.563552][ T5649] team0: Port device team_slave_0 added [ 147.565364][ T5649] team0: Port device team_slave_1 added [ 147.590637][ T5649] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 147.590649][ T5649] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 147.590667][ T5649] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 147.592596][ T5649] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 147.592610][ T5649] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 147.592633][ T5649] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 147.637051][ T5649] hsr_slave_0: entered promiscuous mode [ 147.638156][ T5649] hsr_slave_1: entered promiscuous mode [ 147.785344][ T5649] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 147.793832][ T5649] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 147.796710][ T5649] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 147.809433][ T5649] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 147.810384][ T5649] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 147.813158][ T5649] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 147.813997][ T5649] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 147.816319][ T5649] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 147.853107][ T5649] bridge0: port 2(bridge_slave_1) entered blocking state [ 147.853177][ T5649] bridge0: port 2(bridge_slave_1) entered forwarding state [ 147.853457][ T5649] bridge0: port 1(bridge_slave_0) entered blocking state [ 147.853582][ T5649] bridge0: port 1(bridge_slave_0) entered forwarding state [ 147.912174][ T5649] 8021q: adding VLAN 0 to HW filter on device bond0 [ 147.930302][ T1166] bridge0: port 1(bridge_slave_0) entered disabled state [ 147.931111][ T1166] bridge0: port 2(bridge_slave_1) entered disabled state [ 147.948799][ T5649] 8021q: adding VLAN 0 to HW filter on device team0 [ 147.961745][ T61] bridge0: port 1(bridge_slave_0) entered blocking state [ 147.961820][ T61] bridge0: port 1(bridge_slave_0) entered forwarding state [ 147.967929][ T61] bridge0: port 2(bridge_slave_1) entered blocking state [ 147.968023][ T61] bridge0: port 2(bridge_slave_1) entered forwarding state [ 148.255896][ T5649] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 148.296472][ T5649] veth0_vlan: entered promiscuous mode [ 148.304806][ T5649] veth1_vlan: entered promiscuous mode [ 148.328980][ T5649] veth0_macvtap: entered promiscuous mode [ 148.332043][ T5649] veth1_macvtap: entered promiscuous mode [ 148.345538][ T5649] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 148.351429][ T5649] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 148.365613][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 148.398253][ T1166] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 148.399259][ T1166] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 148.399328][ T1166] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 148.454694][ T5649] soft_limit_in_bytes is deprecated and will be removed. Writing any value to this file has no effect. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 148.568749][ T61] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 148.642455][ T61] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 148.701647][ T61] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 148.797792][ T61] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 149.160967][ T4927] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 149.161731][ T4927] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 149.162159][ T4927] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 149.163039][ T4927] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 149.163628][ T4927] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 150.649636][ T51] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 150.649661][ T51] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 150.682491][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 150.682511][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 151.132740][ T61] bridge_slave_1: left allmulticast mode [ 151.132776][ T61] bridge_slave_1: left promiscuous mode [ 151.134261][ T61] bridge0: port 2(bridge_slave_1) entered disabled state [ 151.173265][ T61] bridge_slave_0: left allmulticast mode [ 151.173290][ T61] bridge_slave_0: left promiscuous mode [ 151.173495][ T61] bridge0: port 1(bridge_slave_0) entered disabled state [ 151.567970][ T61] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 151.592466][ T61] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 151.595953][ T61] bond0 (unregistering): Released all slaves 2026/10/02 22:07:16 executed programs: 0 [ 151.760260][ T61] hsr_slave_0: left promiscuous mode [ 151.761175][ T61] hsr_slave_1: left promiscuous mode [ 151.762066][ T61] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 151.762095][ T61] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 151.762930][ T4927] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 151.764380][ T4927] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 151.765351][ T4927] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 151.766308][ T61] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 151.766328][ T61] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 151.766820][ T4927] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 151.775211][ T4927] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 151.802638][ T61] veth1_macvtap: left promiscuous mode [ 151.802686][ T61] veth0_macvtap: left promiscuous mode [ 151.802789][ T61] veth1_vlan: left promiscuous mode [ 151.802862][ T61] veth0_vlan: left promiscuous mode [ 152.054833][ T61] team0 (unregistering): Port device team_slave_1 removed [ 152.065219][ T61] team0 (unregistering): Port device team_slave_0 removed [ 152.160065][ T5272] 8021q: adding VLAN 0 to HW filter on device eth1 [ 153.179736][ T5272] 8021q: adding VLAN 0 to HW filter on device eth2 [ 153.651190][ T5774] bridge0: port 1(bridge_slave_0) entered blocking state [ 153.651345][ T5774] bridge0: port 1(bridge_slave_0) entered disabled state [ 153.651459][ T5774] bridge_slave_0: entered allmulticast mode [ 153.653070][ T5774] bridge_slave_0: entered promiscuous mode [ 153.675197][ T5774] bridge0: port 2(bridge_slave_1) entered blocking state [ 153.675370][ T5774] bridge0: port 2(bridge_slave_1) entered disabled state [ 153.675517][ T5774] bridge_slave_1: entered allmulticast mode [ 153.682868][ T5774] bridge_slave_1: entered promiscuous mode [ 153.827943][ T5774] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 153.833010][ T5774] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 153.868950][ T5774] team0: Port device team_slave_0 added [ 153.875152][ T5774] team0: Port device team_slave_1 added [ 153.898710][ T54] Bluetooth: hci0: command tx timeout [ 153.940277][ T5774] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 153.940295][ T5774] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 153.940319][ T5774] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 153.943935][ T5774] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 153.943950][ T5774] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 153.943973][ T5774] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 154.055574][ T5774] hsr_slave_0: entered promiscuous mode [ 154.062899][ T5774] hsr_slave_1: entered promiscuous mode [ 154.157511][ T5272] 8021q: adding VLAN 0 to HW filter on device eth3 [ 154.642428][ T5774] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 154.646986][ T5774] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 154.661892][ T5774] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 154.666314][ T5774] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 154.681526][ T5774] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 154.686257][ T5774] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 154.702660][ T5774] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 154.706752][ T5774] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 154.820627][ T5774] 8021q: adding VLAN 0 to HW filter on device bond0 [ 154.840164][ T5774] 8021q: adding VLAN 0 to HW filter on device team0 [ 154.847024][ T61] bridge0: port 1(bridge_slave_0) entered blocking state [ 154.847631][ T61] bridge0: port 1(bridge_slave_0) entered forwarding state [ 154.860208][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 154.860680][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 155.366296][ T5774] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 155.429297][ T5774] veth0_vlan: entered promiscuous mode [ 155.439627][ T5774] veth1_vlan: entered promiscuous mode [ 155.475031][ T5774] veth0_macvtap: entered promiscuous mode [ 155.480282][ T5774] veth1_macvtap: entered promiscuous mode [ 155.495203][ T5774] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 155.517803][ T5774] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 155.608327][ T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 155.608781][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 155.608820][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 155.608854][ T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 155.670924][ T61] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 155.670945][ T61] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 155.719903][ T51] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 155.719923][ T51] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 155.984181][ T54] Bluetooth: hci0: command tx timeout 2026/10/02 22:07:21 executed programs: 29 [ 158.057507][ T54] Bluetooth: hci0: command tx timeout [ 160.138426][ T54] Bluetooth: hci0: command tx timeout [ 194.219146][ T1312] ieee802154 phy0 wpan0: encryption failed: -22 [ 194.219196][ T1312] ieee802154 phy1 wpan1: encryption failed: -22 [ 255.658585][ T1312] ieee802154 phy0 wpan0: encryption failed: -22 [ 255.658626][ T1312] ieee802154 phy1 wpan1: encryption failed: -22 [ 278.217224][ T4927] Bluetooth: hci0: command 0x0406 tx timeout [ 306.217189][ T34] INFO: task kworker/u8:3:51 blocked in I/O wait for more than 143 seconds. [ 306.217215][ T34] Not tainted syzkaller #0 [ 306.217225][ T34] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 306.217247][ T34] task:kworker/u8:3 state:D stack:21832 pid:51 tgid:51 ppid:2 task_flags:0x4248160 flags:0x00080000 [ 306.217324][ T34] Workqueue: writeback wb_workfn (flush-8:0) [ 306.217454][ T34] Call Trace: [ 306.217465][ T34] [ 306.217478][ T34] __schedule+0x1b47/0x5b40 [ 306.217499][ T34] ? blk_mq_flush_plug_list+0x415/0x540 [ 306.217526][ T34] ? __asan_memset+0x22/0x50 [ 306.217538][ T34] ? __pfx_blk_mq_flush_plug_list+0x10/0x10 [ 306.217555][ T34] ? __pfx_blk_mq_flush_plug_list+0x10/0x10 [ 306.217572][ T34] ? __blk_flush_plug+0x416/0x4d0 [ 306.217587][ T34] ? __pfx___schedule+0x10/0x10 [ 306.217604][ T34] ? schedule+0x90/0x2b0 [ 306.217616][ T34] schedule+0x164/0x2b0 [ 306.217629][ T34] io_schedule+0x7f/0xd0 [ 306.217641][ T34] bit_wait_io+0x13/0x110 [ 306.217655][ T34] __wait_on_bit+0xac/0x300 [ 306.217667][ T34] ? __pfx_bit_wait_io+0x10/0x10 [ 306.217680][ T34] out_of_line_wait_on_bit+0x13b/0x190 [ 306.217693][ T34] ? __pfx_bit_wait_io+0x10/0x10 [ 306.217705][ T34] ? __pfx_out_of_line_wait_on_bit+0x10/0x10 [ 306.217718][ T34] ? __pfx_wake_bit_function+0x10/0x10 [ 306.217739][ T34] do_get_write_access+0x658/0x10c0 [ 306.217761][ T34] jbd2_journal_get_write_access+0x1d7/0x230 [ 306.217776][ T34] __ext4_journal_get_write_access+0xec/0x620 [ 306.217793][ T34] ? __pfx___ext4_journal_get_write_access+0x10/0x10 [ 306.217811][ T34] ext4_mb_mark_context+0x171/0xec0 [ 306.217831][ T34] ? __pfx_ext4_mb_mark_context+0x10/0x10 [ 306.217841][ T34] ? ext4_sb_block_valid+0x16d/0x560 [ 306.217855][ T34] ? ext4_sb_block_valid+0x484/0x560 [ 306.217867][ T34] ext4_mb_mark_diskspace_used+0x338/0x760 [ 306.217887][ T34] ext4_mb_new_blocks+0x1062/0x4520 [ 306.217902][ T34] ? trace_kmalloc+0x2a/0xf0 [ 306.217916][ T34] ? __kmalloc_noprof+0x1a6/0x710 [ 306.217926][ T34] ? ext4_find_extent+0x1f5/0xcd0 [ 306.217938][ T34] ? ext4_find_extent+0x1f5/0xcd0 [ 306.217952][ T34] ? __pfx_ext4_mb_new_blocks+0x10/0x10 [ 306.217966][ T34] ? ext4_ext_find_goal+0xf0/0x1e0 [ 306.217980][ T34] ext4_ext_map_blocks+0x13f1/0x5680 [ 306.217994][ T34] ? kmem_cache_alloc_noprof+0x151/0x600 [ 306.218003][ T34] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 306.218030][ T34] ? kasan_check_range+0x7/0x2c0 [ 306.218045][ T34] ? ext4_alloc_io_end_vec+0x2b/0x160 [ 306.218055][ T34] ? kmem_cache_alloc_noprof+0x151/0x600 [ 306.218066][ T34] ? kasan_save_track+0x3e/0x80 [ 306.218078][ T34] ? __kasan_slab_alloc+0x6c/0x80 [ 306.218090][ T34] ? kmem_cache_alloc_noprof+0x2b4/0x600 [ 306.218099][ T34] ? ext4_alloc_io_end_vec+0x2b/0x160 [ 306.218110][ T34] ? __pfx_ext4_ext_map_blocks+0x10/0x10 [ 306.218125][ T34] ? lock_acquire+0x115/0x350 [ 306.218144][ T34] ? down_write+0x166/0x200 [ 306.218159][ T34] ext4_map_create_blocks+0x116/0x530 [ 306.218177][ T34] ? ext4_fc_track_inode+0xf3/0x3f0 [ 306.218193][ T34] ext4_map_blocks+0x791/0x12c0 [ 306.218217][ T34] ? ext4_alloc_io_end_vec+0x2b/0x160 [ 306.218230][ T34] ? __pfx_ext4_map_blocks+0x10/0x10 [ 306.218244][ T34] ? kmem_cache_alloc_noprof+0x151/0x600 [ 306.218260][ T34] ? ext4_inode_journal_mode+0x376/0x470 [ 306.218274][ T34] ext4_do_writepages+0x2398/0x4770 [ 306.218308][ T34] ? __pfx_ext4_do_writepages+0x10/0x10 [ 306.218332][ T34] ? lock_acquire+0x115/0x350 [ 306.218361][ T34] ext4_writepages+0x1fe/0x4e0 [ 306.218446][ T34] ? __pfx_ext4_writepages+0x10/0x10 [ 306.218543][ T34] ? do_raw_spin_unlock+0xf5/0x200 [ 306.218559][ T34] ? __pfx_ext4_writepages+0x10/0x10 [ 306.218573][ T34] do_writepages+0x338/0x560 [ 306.218618][ T34] ? do_raw_spin_lock+0x12b/0x2f0 [ 306.218659][ T34] ? reacquire_held_locks+0x117/0x1a0 [ 306.218682][ T34] ? writeback_sb_inodes+0x450/0x1af0 [ 306.218698][ T34] __writeback_single_inode+0x136/0x1220 [ 306.218716][ T34] ? do_raw_spin_unlock+0xf5/0x200 [ 306.218733][ T34] writeback_sb_inodes+0x9de/0x1af0 [ 306.218757][ T34] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 306.218767][ T34] ? unwind_next_frame+0x1baf/0x2550 [ 306.218795][ T34] ? __pfx_down_read_trylock+0x10/0x10 [ 306.218817][ T34] __writeback_inodes_wb+0x114/0x240 [ 306.218836][ T34] wb_writeback+0x42f/0xad0 [ 306.218848][ T34] ? queue_io+0x251/0x470 [ 306.218866][ T34] ? __pfx_wb_writeback+0x10/0x10 [ 306.218876][ T34] ? do_raw_spin_lock+0x12b/0x2f0 [ 306.218898][ T34] wb_workfn+0xc92/0x10f0 [ 306.218921][ T34] ? __pfx_wb_workfn+0x10/0x10 [ 306.218941][ T34] ? do_raw_spin_lock+0x12b/0x2f0 [ 306.218960][ T34] ? lock_acquire+0x115/0x350 [ 306.218976][ T34] ? rcu_is_watching+0x16/0xb0 [ 306.218990][ T34] ? process_scheduled_works+0x97a/0x1630 [ 306.219005][ T34] process_scheduled_works+0xc3d/0x1630 [ 306.219040][ T34] ? __pfx_process_scheduled_works+0x10/0x10 [ 306.219057][ T34] ? assign_work+0x3cf/0x5d0 [ 306.219073][ T34] worker_thread+0xa47/0xfb0 [ 306.219100][ T34] kthread+0x38b/0x480 [ 306.219111][ T34] ? __pfx_worker_thread+0x10/0x10 [ 306.219124][ T34] ? __pfx_kthread+0x10/0x10 [ 306.219135][ T34] ret_from_fork+0x514/0xb70 [ 306.219152][ T34] ? __pfx_ret_from_fork+0x10/0x10 [ 306.219167][ T34] ? __switch_to+0xc78/0x1410 [ 306.219181][ T34] ? __pfx_kthread+0x10/0x10 [ 306.219192][ T34] ret_from_fork_asm+0x1a/0x30 [ 306.219215][ T34] [ 306.219286][ T34] INFO: task syz.0.246:6361 blocked in I/O wait for more than 143 seconds. [ 306.219296][ T34] Not tainted syzkaller #0 [ 306.219302][ T34] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 306.219306][ T34] task:syz.0.246 state:D stack:27456 pid:6361 tgid:6361 ppid:5774 task_flags:0x440040 flags:0x00080002 [ 306.219340][ T34] Call Trace: [ 306.219344][ T34] [ 306.219350][ T34] __schedule+0x1b47/0x5b40 [ 306.219376][ T34] ? __pfx___schedule+0x10/0x10 [ 306.219392][ T34] ? schedule+0x90/0x2b0 [ 306.219405][ T34] schedule+0x164/0x2b0 [ 306.219417][ T34] io_schedule+0x7f/0xd0 [ 306.219429][ T34] bit_wait_io+0x13/0x110 [ 306.219442][ T34] __wait_on_bit+0xac/0x300 [ 306.219454][ T34] ? __pfx_bit_wait_io+0x10/0x10 [ 306.219467][ T34] out_of_line_wait_on_bit+0x13b/0x190 [ 306.219480][ T34] ? __pfx_bit_wait_io+0x10/0x10 [ 306.219491][ T34] ? __pfx_out_of_line_wait_on_bit+0x10/0x10 [ 306.219505][ T34] ? __pfx_wake_bit_function+0x10/0x10 [ 306.219526][ T34] do_get_write_access+0x658/0x10c0 [ 306.219548][ T34] jbd2_journal_get_write_access+0x1d7/0x230 [ 306.219563][ T34] __ext4_journal_get_write_access+0xec/0x620 [ 306.219579][ T34] ? __pfx___ext4_journal_get_write_access+0x10/0x10 [ 306.219592][ T34] ? trace_kmem_cache_alloc+0x29/0xe0 [ 306.219602][ T34] ? jbd2__journal_start+0x145/0x5d0 [ 306.219618][ T34] ext4_reserve_inode_write+0x294/0x360 [ 306.219635][ T34] __ext4_mark_inode_dirty+0x141/0x7b0 [ 306.219656][ T34] ext4_dirty_inode+0xd0/0x110 [ 306.219669][ T34] ? __pfx_ext4_dirty_inode+0x10/0x10 [ 306.219680][ T34] __mark_inode_dirty+0x3a8/0x13b0 [ 306.219698][ T34] file_update_time_flags+0x399/0x440 [ 306.219714][ T34] ext4_page_mkwrite+0x21f/0x12c0 [ 306.219732][ T34] ? __pfx_filemap_fault+0x10/0x10 [ 306.219748][ T34] ? __pfx_ext4_page_mkwrite+0x10/0x10 [ 306.219761][ T34] ? lruvec_stat_mod_folio+0x28e/0x3e0 [ 306.219775][ T34] do_page_mkwrite+0x147/0x310 [ 306.219790][ T34] do_pte_missing+0x70f/0x3570 [ 306.219803][ T34] ? do_raw_spin_unlock+0xf5/0x200 [ 306.219819][ T34] ? _raw_spin_unlock+0x28/0x50 [ 306.219830][ T34] ? __pmd_alloc+0x40a/0x5c0 [ 306.219846][ T34] handle_mm_fault+0x1a53/0x3750 [ 306.219867][ T34] ? handle_mm_fault+0xf1/0x3750 [ 306.219890][ T34] ? __pfx_handle_mm_fault+0x10/0x10 [ 306.219904][ T34] ? lock_vma_under_rcu+0x45a/0x500 [ 306.219918][ T34] ? irqentry_exit+0x218/0x910 [ 306.219930][ T34] ? trace_irq_disable+0x3b/0x140 [ 306.219954][ T34] do_user_addr_fault+0xb35/0x1480 [ 306.219976][ T34] ? trace_page_fault_user+0x84/0x1e0 [ 306.219992][ T34] exc_page_fault+0x6a/0xc0 [ 306.220005][ T34] asm_exc_page_fault+0x26/0x30 [ 306.220022][ T34] RIP: 0033:0x7f60d966baa3 [ 306.220041][ T34] RSP: 002b:00007ffef370a0f0 EFLAGS: 00010246 [ 306.220051][ T34] RAX: 000000000003fde8 RBX: 0000000000000000 RCX: 0000000000000000 [ 306.220058][ T34] RDX: 0000001b2d824000 RSI: 0000000000040000 RDI: 00007f60d99e0708 [ 306.220065][ T34] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 306.220071][ T34] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 306.220077][ T34] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffef370a380 [ 306.220093][ T34] [ 306.220103][ T34] [ 306.220103][ T34] Showing all locks held in the system: [ 306.220111][ T34] locks held by khungtaskd/34: 1, last CPU#0: [ 306.220119][ T34] #0: ffffffff8f15c520 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 306.220148][ T34] locks held by kworker/u8:3/51: 6, on CPU#1: [ 306.220155][ T34] #0: ffff8880206e6148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 306.220183][ T34] #1: ffffc90000bb7c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 306.220211][ T34] #2: ffff8880359360e8 (&type->s_umount_key#34){++++}-{4:4}, at: super_trylock_shared+0x23/0xf0 [ 306.220240][ T34] #3: ffff888035934c98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages+0x1f1/0x4e0 [ 306.220267][ T34] #4: ffff888035932938 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fb0/0x21f0 [ 306.220292][ T34] #5: ffff88807555d3a8 (&ei->i_data_sem#2){++++}-{4:4}, at: ext4_map_blocks+0x77d/0x12c0 [ 306.220341][ T34] locks held by getty/5365: 2, on CPU#0: [ 306.220349][ T34] #0: ffff8880324110a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 306.220448][ T34] #1: ffffc9000322b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 [ 306.220485][ T34] locks held by syz.0.246/6361: 3, on CPU#1: [ 306.220493][ T34] #0: ffff888059528448 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500 [ 306.220522][ T34] #1: ffff888035936558 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x1fd/0x12c0 [ 306.220550][ T34] #2: ffff888035932938 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fb0/0x21f0 [ 306.220576][ T34] locks held by syz-executor/6368: 3, on CPU#0: [ 306.220584][ T34] #0: ffff888035936460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 306.220614][ T34] #1: ffff88807555f040 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x200/0x370 [ 306.220647][ T34] #2: ffff888035932938 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fb0/0x21f0 [ 306.220673][ T34] [ 306.220675][ T34] ============================================= [ 306.220675][ T34] [ 306.220688][ T34] NMI backtrace for cpu 0 [ 306.220703][ T34] CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 306.220725][ T34] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 306.220736][ T34] Call Trace: [ 306.220745][ T34] [ 306.220753][ T34] dump_stack_lvl+0xe8/0x150 [ 306.220780][ T34] nmi_cpu_backtrace+0x274/0x2d0 [ 306.220810][ T34] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 306.220841][ T34] nmi_trigger_cpumask_backtrace+0x17d/0x390 [ 306.220863][ T34] sys_info+0x135/0x170 [ 306.220877][ T34] watchdog+0x1058/0x10d0 [ 306.220892][ T34] ? watchdog+0x209/0x10d0 [ 306.220906][ T34] kthread+0x38b/0x480 [ 306.220919][ T34] ? __pfx_watchdog+0x10/0x10 [ 306.220933][ T34] ? __pfx_kthread+0x10/0x10 [ 306.220944][ T34] ret_from_fork+0x514/0xb70 [ 306.220959][ T34] ? __pfx_ret_from_fork+0x10/0x10 [ 306.220973][ T34] ? __switch_to+0xc78/0x1410 [ 306.220987][ T34] ? __pfx_kthread+0x10/0x10 [ 306.220997][ T34] ret_from_fork_asm+0x1a/0x30 [ 306.221017][ T34] [ 306.221022][ T34] Sending NMI from CPU 0 to CPUs 1: [ 306.221073][ C1] NMI backtrace for cpu 1 [ 306.221086][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) [ 306.221107][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 306.221118][ C1] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 306.221141][ C1] Code: 6b a2 02 c3 cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 33 97 29 00 fb f4 8c 18 03 00 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 [ 306.221157][ C1] RSP: 0018:ffffc900001c7e40 EFLAGS: 00000246 [ 306.221173][ C1] RAX: 00000000000c81d1 RBX: ffffffff819ccf00 RCX: 8000000000000001 [ 306.221187][ C1] RDX: 0000000000000001 RSI: ffffffff8e74f1c1 RDI: ffffffff8c8f3280 [ 306.221200][ C1] RBP: ffffc900001c7f10 R08: ffff8880b8533e5b R09: 1ffff110170a67cb [ 306.221214][ C1] R10: dffffc0000000000 R11: ffffed10170a67cc R12: 0000000000000000 [ 306.221228][ C1] R13: 1ffff11003c5e3e8 R14: 1ffff92000038fd0 R15: dffffc0000000000 [ 306.221242][ C1] FS: 0000000000000000(0000) GS:ffff888124723000(0000) knlGS:0000000000000000 [ 306.221258][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 306.221271][ C1] CR2: 0000555738c03168 CR3: 000000000ef48000 CR4: 00000000003526f0 [ 306.221288][ C1] Call Trace: [ 306.221294][ C1] [ 306.221301][ C1] default_idle+0x9/0x20 [ 306.221323][ C1] default_idle_call+0x72/0xb0 [ 306.221346][ C1] do_idle+0x2e0/0x540 [ 306.221366][ C1] ? __pfx_do_idle+0x10/0x10 [ 306.221389][ C1] cpu_startup_entry+0x43/0x60 [ 306.221408][ C1] start_secondary+0x101/0x110 [ 306.221431][ C1] common_startup_64+0x13e/0x157 [ 306.221459][ C1] [ 306.222055][ T34] Kernel panic - not syncing: hung_task: blocked tasks [ 307.533190][ T34] CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 307.542309][ T34] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 307.552373][ T34] Call Trace: [ 307.555657][ T34] [ 307.558582][ T34] vpanic+0x26f/0x710 [ 307.562599][ T34] panic+0xc5/0xd0 [ 307.566321][ T34] ? __pfx_panic+0x10/0x10 [ 307.570734][ T34] ? wq_watchdog_touch+0xf9/0x160 [ 307.575767][ T34] ? nmi_trigger_cpumask_backtrace+0x24d/0x390 [ 307.581950][ T34] watchdog+0x10cc/0x10d0 [ 307.586311][ T34] ? watchdog+0x209/0x10d0 [ 307.590747][ T34] kthread+0x38b/0x480 [ 307.594818][ T34] ? __pfx_watchdog+0x10/0x10 [ 307.599503][ T34] ? __pfx_kthread+0x10/0x10 [ 307.604112][ T34] ret_from_fork+0x514/0xb70 [ 307.608723][ T34] ? __pfx_ret_from_fork+0x10/0x10 [ 307.613859][ T34] ? __switch_to+0xc78/0x1410 [ 307.618552][ T34] ? __pfx_kthread+0x10/0x10 [ 307.623153][ T34] ret_from_fork_asm+0x1a/0x30 [ 307.627940][ T34] [ 307.631307][ T34] Kernel Offset: disabled [ 307.635629][ T34] Rebooting in 86400 seconds..