Warning: Permanently added '10.128.0.27' (ED25519) to the list of known hosts. 1970/01/01 00:00:30 parsed 1 programs 1970/01/01 00:00:30 serving rpc on tcp://37639 [ 31.189422][ T4721] cgroup: Unknown subsys name 'net' [ 31.299439][ T4721] cgroup: Unknown subsys name 'cpuset' [ 31.301581][ T4721] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 31.466154][ T4721] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS [ 32.870973][ T4731] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 32.975020][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 32.976439][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 32.977894][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 32.979475][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 32.981093][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 33.086034][ T1246] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 33.086064][ T1246] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 33.101506][ T12] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 33.101536][ T12] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 33.653167][ T4767] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.653443][ T4767] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.653511][ T4767] bridge_slave_0: entered allmulticast mode [ 33.653970][ T4767] bridge_slave_0: entered promiscuous mode [ 33.655196][ T4767] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.655238][ T4767] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.655288][ T4767] bridge_slave_1: entered allmulticast mode [ 33.655694][ T4767] bridge_slave_1: entered promiscuous mode [ 33.739734][ T4767] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 33.740692][ T4767] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 33.746963][ T4767] team0: Port device team_slave_0 added [ 33.747708][ T4767] team0: Port device team_slave_1 added [ 33.754466][ T4767] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 33.754494][ T4767] 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. [ 33.754518][ T4767] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 33.755233][ T4767] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 33.755241][ T4767] 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. [ 33.755255][ T4767] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 33.765928][ T4767] hsr_slave_0: entered promiscuous mode [ 33.766262][ T4767] hsr_slave_1: entered promiscuous mode [ 33.828957][ T4767] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 33.832588][ T4767] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 33.833409][ T4767] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 33.835009][ T4767] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 33.835917][ T4767] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 33.837071][ T4767] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 33.837358][ T4767] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 33.839181][ T4767] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 33.854357][ T4767] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.854410][ T4767] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.854582][ T4767] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.854621][ T4767] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.876586][ T4767] 8021q: adding VLAN 0 to HW filter on device bond0 [ 33.881128][ T1246] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.882865][ T1246] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.886652][ T4767] 8021q: adding VLAN 0 to HW filter on device team0 [ 33.901607][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.901662][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.902051][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.902084][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.990016][ T4767] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 34.002116][ T4767] veth0_vlan: entered promiscuous mode [ 34.004470][ T4767] veth1_vlan: entered promiscuous mode [ 34.012331][ T4767] veth0_macvtap: entered promiscuous mode [ 34.013441][ T4767] veth1_macvtap: entered promiscuous mode [ 34.017295][ T4767] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 34.018975][ T4767] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 34.022030][ T1246] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 34.024012][ T1246] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 34.025803][ T1246] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 34.030553][ T1246] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 34.122795][ T1246] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 34.181430][ T1246] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 34.252377][ T1246] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 34.293998][ T1246] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:34 executed programs: 0 [ 34.602120][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 34.603389][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 34.603638][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 34.603940][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 34.604177][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 34.734898][ T4823] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.735042][ T4823] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.735115][ T4823] bridge_slave_0: entered allmulticast mode [ 34.735556][ T4823] bridge_slave_0: entered promiscuous mode [ 34.736690][ T4823] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.736742][ T4823] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.736788][ T4823] bridge_slave_1: entered allmulticast mode [ 34.737201][ T4823] bridge_slave_1: entered promiscuous mode [ 34.747307][ T4823] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 34.748456][ T4823] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 34.754387][ T4823] team0: Port device team_slave_0 added [ 34.755320][ T4823] team0: Port device team_slave_1 added [ 34.762048][ T4823] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 34.762069][ T4823] 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. [ 34.762092][ T4823] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 34.762569][ T4823] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 34.762575][ T4823] 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. [ 34.762590][ T4823] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 34.772556][ T4823] hsr_slave_0: entered promiscuous mode [ 34.772857][ T4823] hsr_slave_1: entered promiscuous mode [ 34.773055][ T4823] debugfs: 'hsr0' already exists in 'hsr' [ 34.773103][ T4823] Cannot create hsr debugfs directory [ 36.668411][ T50] Bluetooth: hci0: command tx timeout [ 37.527688][ T1246] bridge_slave_1: left allmulticast mode [ 37.527733][ T1246] bridge_slave_1: left promiscuous mode [ 37.528093][ T1246] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.532237][ T1246] bridge_slave_0: left allmulticast mode [ 37.532263][ T1246] bridge_slave_0: left promiscuous mode [ 37.532557][ T1246] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.583581][ T1246] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 37.609220][ T1246] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 37.648825][ T1246] bond0 (unregistering): Released all slaves [ 37.698743][ T1246] hsr_slave_0: left promiscuous mode [ 37.699900][ T1246] hsr_slave_1: left promiscuous mode [ 37.700179][ T1246] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 37.700195][ T1246] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 37.700553][ T1246] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 37.700562][ T1246] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 37.703966][ T1246] veth1_macvtap: left promiscuous mode [ 37.703995][ T1246] veth0_macvtap: left promiscuous mode [ 37.704041][ T1246] veth1_vlan: left promiscuous mode [ 37.704093][ T1246] veth0_vlan: left promiscuous mode [ 37.807947][ T1246] team0 (unregistering): Port device team_slave_1 removed [ 37.811632][ T1246] team0 (unregistering): Port device team_slave_0 removed [ 37.854938][ T4400] 8021q: adding VLAN 0 to HW filter on device eth0 [ 38.079697][ T4823] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 38.081988][ T4823] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 38.082394][ T4823] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 38.083274][ T4823] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 38.083651][ T4823] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 38.084742][ T4823] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 38.085113][ T4823] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 38.095784][ T4823] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 38.122419][ T4823] 8021q: adding VLAN 0 to HW filter on device bond0 [ 38.126507][ T4823] 8021q: adding VLAN 0 to HW filter on device team0 [ 38.128578][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.128629][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 38.134674][ T1471] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.134717][ T1471] bridge0: port 2(bridge_slave_1) entered forwarding state [ 38.336885][ T4823] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 38.355192][ T4823] veth0_vlan: entered promiscuous mode [ 38.357508][ T4823] veth1_vlan: entered promiscuous mode [ 38.363686][ T4823] veth0_macvtap: entered promiscuous mode [ 38.364987][ T4823] veth1_macvtap: entered promiscuous mode [ 38.369425][ T4823] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 38.370472][ T4823] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 38.375164][ T1471] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.375206][ T1471] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.375801][ T1471] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.375832][ T1471] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.397669][ T15] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 38.400044][ T15] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 38.409327][ T15] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 38.409350][ T15] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 38.435139][ T4916] loop3: detected capacity change from 0 to 7 [ 38.489072][ T4916] [ 38.489519][ T4916] ====================================================== [ 38.490670][ T4916] WARNING: possible circular locking dependency detected [ 38.491760][ T4916] syzkaller #0 Not tainted [ 38.492404][ T4916] ------------------------------------------------------ [ 38.493458][ T4916] syz.0.17/4916 is trying to acquire lock: [ 38.494374][ T4916] ffff0000c1919210 (&root->kernfs_iattr_rwsem){++++}-{4:4}, at: kernfs_iop_getattr+0x98/0xe0 [ 38.495994][ T4916] [ 38.495994][ T4916] but task is already holding lock: [ 38.497134][ T4916] ffff0000c6941c38 (&q->q_usage_counter(io)#20){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x20/0x38 [ 38.499023][ T4916] [ 38.499023][ T4916] which lock already depends on the new lock. [ 38.499023][ T4916] [ 38.500730][ T4916] [ 38.500730][ T4916] the existing dependency chain (in reverse order) is: [ 38.502153][ T4916] [ 38.502153][ T4916] -> #2 (&q->q_usage_counter(io)#20){++++}-{0:0}: [ 38.503496][ T4916] blk_alloc_queue+0x488/0x590 [ 38.504392][ T4916] blk_mq_alloc_queue+0x148/0x284 [ 38.505280][ T4916] __blk_mq_alloc_disk+0x38/0x10c [ 38.506157][ T4916] loop_add+0x358/0x8e4 [ 38.506885][ T4916] loop_init+0xe8/0x10c [ 38.507638][ T4916] do_one_initcall+0x274/0xc38 [ 38.508517][ T4916] do_initcall_level+0x12c/0x1c4 [ 38.509448][ T4916] do_initcalls+0x70/0xd0 [ 38.510261][ T4916] do_basic_setup+0x7c/0x90 [ 38.511033][ T4916] kernel_init_freeable+0x268/0x3a8 [ 38.511962][ T4916] kernel_init+0x24/0x1dc [ 38.512779][ T4916] ret_from_fork+0x10/0x20 [ 38.513570][ T4916] [ 38.513570][ T4916] -> #1 (fs_reclaim){+.+.}-{0:0}: [ 38.514800][ T4916] fs_reclaim_acquire+0x90/0x110 [ 38.515735][ T4916] kmem_cache_alloc_noprof+0x60/0x5d8 [ 38.516762][ T4916] __kernfs_iattrs+0xd8/0x310 [ 38.517650][ T4916] __kernfs_setattr+0x48/0x2ac [ 38.518495][ T4916] kernfs_iop_setattr+0xc4/0x11c [ 38.519406][ T4916] notify_change+0x928/0xb7c [ 38.520268][ T4916] do_truncate+0x1a8/0x22c [ 38.521093][ T4916] path_openat+0x2368/0x2a60 [ 38.521948][ T4916] do_file_open+0x1c8/0x2e8 [ 38.522840][ T4916] do_sys_openat2+0x114/0x1e8 [ 38.523704][ T4916] do_sys_open+0xb0/0xe0 [ 38.524530][ T4916] __arm64_sys_openat+0xa0/0xbc [ 38.525354][ T4916] invoke_syscall+0x98/0x244 [ 38.526241][ T4916] el0_svc_common+0xec/0x23c [ 38.527207][ T4916] do_el0_svc+0x4c/0x5c [ 38.527951][ T4916] el0_svc+0x64/0x260 [ 38.528725][ T4916] el0t_64_sync_handler+0x48/0x148 [ 38.529654][ T4916] el0t_64_sync+0x198/0x19c [ 38.530497][ T4916] [ 38.530497][ T4916] -> #0 (&root->kernfs_iattr_rwsem){++++}-{4:4}: [ 38.531887][ T4916] __lock_acquire+0x17c0/0x2ebc [ 38.532764][ T4916] lock_acquire+0x140/0x364 [ 38.533628][ T4916] down_read+0x58/0x2bc [ 38.534415][ T4916] kernfs_iop_getattr+0x98/0xe0 [ 38.535285][ T4916] vfs_getattr_nosec+0x250/0x388 [ 38.536217][ T4916] vfs_getattr+0x60/0x88 [ 38.537012][ T4916] loop_assign_backing_file+0x200/0x3c0 [ 38.538003][ T4916] lo_ioctl+0x1160/0x167c [ 38.538786][ T4916] blkdev_ioctl+0x574/0x904 [ 38.539639][ T4916] __arm64_sys_ioctl+0x14c/0x1c4 [ 38.540510][ T4916] invoke_syscall+0x98/0x244 [ 38.541361][ T4916] el0_svc_common+0xec/0x23c [ 38.542228][ T4916] do_el0_svc+0x4c/0x5c [ 38.542995][ T4916] el0_svc+0x64/0x260 [ 38.543763][ T4916] el0t_64_sync_handler+0x48/0x148 [ 38.544742][ T4916] el0t_64_sync+0x198/0x19c [ 38.545609][ T4916] [ 38.545609][ T4916] other info that might help us debug this: [ 38.545609][ T4916] [ 38.547445][ T4916] Chain exists of: [ 38.547445][ T4916] &root->kernfs_iattr_rwsem --> fs_reclaim --> &q->q_usage_counter(io)#20 [ 38.547445][ T4916] [ 38.549966][ T4916] Possible unsafe locking scenario: [ 38.549966][ T4916] [ 38.551319][ T4916] CPU0 CPU1 [ 38.552300][ T4916] ---- ---- [ 38.553225][ T4916] lock(&q->q_usage_counter(io)#20); [ 38.554101][ T4916] lock(fs_reclaim); [ 38.555275][ T4916] lock(&q->q_usage_counter(io)#20); [ 38.556551][ T4916] rlock(&root->kernfs_iattr_rwsem); [ 38.557411][ T4916] [ 38.557411][ T4916] *** DEADLOCK *** [ 38.557411][ T4916] [ 38.558844][ T4916] 3 locks held by syz.0.17/4916: [ 38.559712][ T4916] #0: ffff0000c6be2430 (&lo->lo_mutex){+.+.}-{4:4}, at: loop_global_lock_killable+0x64/0xbc [ 38.561482][ T4916] #1: ffff0000c6941c38 (&q->q_usage_counter(io)#20){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x20/0x38 [ 38.563469][ T4916] #2: ffff0000c6941c70 (&q->q_usage_counter(queue)#4){+.+.}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x20/0x38 [ 38.565453][ T4916] [ 38.565453][ T4916] stack backtrace: [ 38.566499][ T4916] CPU: 0 UID: 0 PID: 4916 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT [ 38.567977][ T4916] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 38.569766][ T4916] Call trace: [ 38.570334][ T4916] show_stack+0x2c/0x3c (C) [ 38.571151][ T4916] __dump_stack+0x30/0x40 [ 38.571859][ T4916] dump_stack_lvl+0xd8/0x12c [ 38.572594][ T4916] dump_stack+0x1c/0x28 [ 38.573324][ T4916] print_circular_bug+0x328/0x330 [ 38.574198][ T4916] check_noncircular+0x158/0x174 [ 38.575015][ T4916] __lock_acquire+0x17c0/0x2ebc [ 38.575803][ T4916] lock_acquire+0x140/0x364 [ 38.576504][ T4916] down_read+0x58/0x2bc [ 38.577241][ T4916] kernfs_iop_getattr+0x98/0xe0 [ 38.578094][ T4916] vfs_getattr_nosec+0x250/0x388 [ 38.578986][ T4916] vfs_getattr+0x60/0x88 [ 38.579641][ T4916] loop_assign_backing_file+0x200/0x3c0 [ 38.580581][ T4916] lo_ioctl+0x1160/0x167c [ 38.581347][ T4916] blkdev_ioctl+0x574/0x904 [ 38.582141][ T4916] __arm64_sys_ioctl+0x14c/0x1c4 [ 38.583038][ T4916] invoke_syscall+0x98/0x244 [ 38.583850][ T4916] el0_svc_common+0xec/0x23c [ 38.584566][ T4916] do_el0_svc+0x4c/0x5c [ 38.585257][ T4916] el0_svc+0x64/0x260 [ 38.585931][ T4916] el0t_64_sync_handler+0x48/0x148 [ 38.586827][ T4916] el0t_64_sync+0x198/0x19c [ 38.590571][ C0] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 38.593994][ C0] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 38.594052][ C0] Buffer I/O error on dev loop3, logical block 0, async page read [ 38.597154][ C0] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 38.597183][ C0] Buffer I/O error on dev loop3, logical block 0, async page read [ 38.598191][ C1] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 38.598223][ C1] Buffer I/O error on dev loop3, logical block 0, async page read [ 38.598353][ C1] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 38.598371][ C1] Buffer I/O error on dev loop3, logical block 0, async page read [ 38.598504][ C1] I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 38.598521][ C1] Buffer I/O error on dev loop3, logical block 0, async page read