Warning: Permanently added '10.128.1.228' (ED25519) to the list of known hosts. 2025/12/18 06:59:39 ignoring optional flag "type"="gce" 2025/12/18 06:59:39 parsed 1 programs 2025/12/18 06:59:39 executed programs: 0 [ 38.365266][ T30] kauditd_printk_skb: 18 callbacks suppressed [ 38.365279][ T30] audit: type=1400 audit(1766041179.507:92): avc: denied { unlink } for pid=326 comm="syz-executor" name="swap-file" dev="sda1" ino=2027 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 38.402721][ T326] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 38.588866][ T343] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.595922][ T343] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.603298][ T343] device bridge_slave_0 entered promiscuous mode [ 38.623556][ T340] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.630641][ T340] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.638082][ T340] device bridge_slave_0 entered promiscuous mode [ 38.647845][ T343] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.654893][ T343] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.662296][ T343] device bridge_slave_1 entered promiscuous mode [ 38.671291][ T340] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.678438][ T340] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.685823][ T340] device bridge_slave_1 entered promiscuous mode [ 38.724675][ T345] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.731981][ T345] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.739423][ T345] device bridge_slave_0 entered promiscuous mode [ 38.747211][ T345] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.754410][ T345] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.761852][ T345] device bridge_slave_1 entered promiscuous mode [ 38.782516][ T346] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.789654][ T346] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.797001][ T346] device bridge_slave_0 entered promiscuous mode [ 38.816604][ T346] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.823748][ T346] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.831185][ T346] device bridge_slave_1 entered promiscuous mode [ 38.844918][ T344] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.851951][ T344] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.859458][ T344] device bridge_slave_0 entered promiscuous mode [ 38.866415][ T344] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.873450][ T344] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.880991][ T344] device bridge_slave_1 entered promiscuous mode [ 38.945659][ T341] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.952800][ T341] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.960168][ T341] device bridge_slave_0 entered promiscuous mode [ 38.977688][ T341] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.984857][ T341] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.992319][ T341] device bridge_slave_1 entered promiscuous mode [ 39.132901][ T343] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.140070][ T343] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.147577][ T343] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.154702][ T343] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.173804][ T346] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.181051][ T346] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.188365][ T346] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.195411][ T346] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.228809][ T340] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.235874][ T340] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.243263][ T340] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.250415][ T340] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.260180][ T45] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.267481][ T45] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.274582][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.282329][ T45] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.289771][ T45] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.297323][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.305778][ T45] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.338633][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.347447][ T45] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.354463][ T45] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.361884][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.370019][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.393909][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 39.401641][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.409385][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.418346][ T45] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.425390][ T45] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.432904][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.441170][ T45] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.448199][ T45] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.463936][ T346] device veth0_vlan entered promiscuous mode [ 39.477236][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.486015][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.494137][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 39.502196][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 39.509913][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.518099][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.526346][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 39.533727][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.566632][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.578365][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.586670][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.595296][ T45] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.602331][ T45] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.610252][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.618710][ T45] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.625745][ T45] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.633126][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.641313][ T45] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.648337][ T45] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.655789][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.663893][ T45] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.671238][ T45] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.678679][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.686650][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.703832][ T343] device veth0_vlan entered promiscuous mode [ 39.717455][ T346] device veth1_macvtap entered promiscuous mode [ 39.725589][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 39.733326][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 39.741766][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.750380][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 39.758561][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.766663][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 39.774196][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 39.795280][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.803458][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 39.811778][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.819987][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 39.827594][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.835109][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 39.843508][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.851913][ T45] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.858946][ T45] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.866521][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 39.874921][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.883020][ T45] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.890162][ T45] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.897792][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 39.906095][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.914277][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 39.931923][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 39.940183][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.948421][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 39.956747][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.975243][ T343] device veth1_macvtap entered promiscuous mode [ 39.988389][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.996902][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 40.005935][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 40.013273][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.020883][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 40.029353][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 40.037855][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 40.046555][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 40.054679][ T45] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.061840][ T45] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.069342][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 40.077849][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.086377][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 40.094840][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 40.103143][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 40.114044][ T345] device veth0_vlan entered promiscuous mode [ 40.120540][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 40.128592][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 40.136631][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 40.150454][ T340] device veth0_vlan entered promiscuous mode [ 40.158114][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 40.165760][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 40.173277][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 40.181298][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 40.189027][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 40.197445][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.205737][ T45] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.212746][ T45] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.228105][ T344] device veth0_vlan entered promiscuous mode [ 40.243812][ T345] device veth1_macvtap entered promiscuous mode [ 40.257803][ T406] loop5: detected capacity change from 0 to 512 [ 40.259580][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 40.267221][ T30] audit: type=1400 audit(1766041181.397:93): avc: denied { mounton } for pid=404 comm="syz-executor.5" path="/root/syzkaller-testdir3634701846/syzkaller.oO5l7S/0/file0" dev="sda1" ino=2046 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 40.299231][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 40.306852][ T30] audit: type=1400 audit(1766041181.417:94): avc: denied { mounton } for pid=404 comm="syz-executor.5" path="/root/syzkaller-testdir3634701846/syzkaller.oO5l7S/0/bus" dev="sda1" ino=2047 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=file permissive=1 [ 40.307244][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 40.335369][ T30] audit: type=1400 audit(1766041181.417:95): avc: denied { create } for pid=404 comm="syz-executor.5" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 40.342777][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 40.361110][ T30] audit: type=1400 audit(1766041181.417:96): avc: denied { map } for pid=404 comm="syz-executor.5" path="/root/syzkaller-testdir3634701846/syzkaller.oO5l7S/0/bus" dev="devtmpfs" ino=121 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 40.373773][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 40.403737][ T406] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 40.405445][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 40.419933][ T30] audit: type=1400 audit(1766041181.567:97): avc: denied { mount } for pid=404 comm="syz-executor.5" name="/" dev="loop5" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 40.449353][ T406] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/0/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 40.449942][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 40.472933][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.481448][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.489554][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.497098][ T30] audit: type=1400 audit(1766041181.637:98): avc: denied { unmount } for pid=346 comm="syz-executor.5" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 40.503718][ T340] device veth1_macvtap entered promiscuous mode [ 40.531164][ T344] device veth1_macvtap entered promiscuous mode [ 40.542538][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 40.550981][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 40.560604][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 40.567240][ T30] audit: type=1400 audit(1766041181.707:99): avc: denied { unmount } for pid=346 comm="syz-executor.5" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=filesystem permissive=1 [ 40.569725][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 40.597591][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 40.607597][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.610999][ T413] loop5: detected capacity change from 0 to 512 [ 40.616883][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 40.631213][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 40.639471][ T413] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 40.664488][ T341] device veth0_vlan entered promiscuous mode [ 40.674380][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 40.680275][ T416] loop2: detected capacity change from 0 to 512 [ 40.684112][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 40.698857][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 40.707641][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.714322][ T418] EXT4-fs warning (device loop2): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 40.728088][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 40.737973][ T416] EXT4-fs (loop2): revision level too high, forcing read-only mode [ 40.739832][ T422] loop5: detected capacity change from 0 to 512 [ 40.746709][ T416] EXT4-fs (loop2): failed to initialize system zone (-117) [ 40.759946][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.763403][ T422] request_module fs- succeeded, but still no fs? [ 40.768688][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 40.782877][ T416] EXT4-fs (loop2): mount failed [ 40.792082][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 40.802623][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 40.816395][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 40.831437][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 40.840095][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 40.851705][ T432] loop1: detected capacity change from 0 to 512 [ 40.876072][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 40.884397][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 40.903647][ T438] loop2: detected capacity change from 0 to 512 [ 40.918319][ T438] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 40.929856][ T341] device veth1_macvtap entered promiscuous mode [ 40.939812][ T432] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 40.959634][ T432] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/0/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 40.983225][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 40.999743][ T450] loop5: detected capacity change from 0 to 512 [ 41.015670][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 41.035415][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 41.045625][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 41.054075][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 41.084098][ T459] loop3: detected capacity change from 0 to 512 [ 41.093542][ T459] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 41.113426][ T474] loop1: detected capacity change from 0 to 512 [ 41.130064][ T478] loop0: detected capacity change from 0 to 512 [ 41.147476][ T489] loop2: detected capacity change from 0 to 512 [ 41.153831][ T484] loop4: detected capacity change from 0 to 512 [ 41.167011][ T486] loop3: detected capacity change from 0 to 512 [ 41.175538][ T478] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 41.196116][ T484] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 41.232283][ T500] loop2: detected capacity change from 0 to 512 [ 41.257823][ T500] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 41.257866][ T517] loop1: detected capacity change from 0 to 512 [ 41.283941][ T524] loop5: detected capacity change from 0 to 512 [ 41.327414][ T517] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 41.360038][ T555] loop2: detected capacity change from 0 to 512 [ 41.392704][ T555] EXT4-fs (loop2): revision level too high, forcing read-only mode [ 41.396692][ T576] loop0: detected capacity change from 0 to 512 [ 41.403375][ T555] EXT4-fs (loop2): failed to initialize system zone (-117) [ 41.409131][ T578] loop3: detected capacity change from 0 to 512 [ 41.416015][ T555] EXT4-fs (loop2): mount failed [ 41.436045][ T586] loop5: detected capacity change from 0 to 512 [ 41.436384][ T574] blk_update_request: I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 41.458945][ T576] EXT4-fs (loop0): Encoding requested by superblock is unknown [ 41.497036][ T578] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 41.516578][ T578] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/7/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 41.565740][ T620] loop2: detected capacity change from 0 to 512 [ 41.579543][ T628] loop4: detected capacity change from 0 to 512 [ 41.602388][ T639] loop5: detected capacity change from 0 to 512 [ 41.603260][ T635] loop0: detected capacity change from 0 to 512 [ 41.640195][ T635] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 41.642410][ T659] loop3: detected capacity change from 0 to 512 [ 41.654723][ T635] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/11/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 41.663783][ T628] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 41.691655][ T628] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/12/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 41.733041][ T670] loop5: detected capacity change from 0 to 512 [ 41.760137][ T684] loop2: detected capacity change from 0 to 512 [ 41.771488][ T667] loop0: detected capacity change from 0 to 512 [ 41.789644][ T697] loop5: detected capacity change from 0 to 512 [ 41.798001][ T700] loop3: detected capacity change from 0 to 512 [ 41.807189][ T692] loop1: detected capacity change from 0 to 512 [ 41.807532][ T691] blk_update_request: I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 41.836014][ T700] EXT4-fs (loop3): Magic mismatch, very weird! [ 41.843614][ T667] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 41.846450][ T710] loop4: detected capacity change from 0 to 512 [ 41.858841][ T667] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/12/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 41.865797][ T697] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 41.901652][ T697] EXT4-fs (loop5): group descriptors corrupted! [ 41.905556][ T716] loop2: detected capacity change from 0 to 512 [ 41.928643][ T722] loop1: detected capacity change from 0 to 512 [ 41.961395][ T737] loop0: detected capacity change from 0 to 512 [ 41.986210][ T722] EXT4-fs error (device loop1): ext4_init_orphan_info:582: comm syz-executor.1: inode #0: comm syz-executor.1: iget: illegal inode # [ 42.017113][ T749] loop3: detected capacity change from 0 to 512 [ 42.027515][ T722] EXT4-fs (loop1): get orphan inode failed [ 42.033944][ T722] EXT4-fs (loop1): mount failed [ 42.039876][ T749] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 42.056558][ T737] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 42.071163][ T737] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/13/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 42.101093][ T764] loop3: detected capacity change from 0 to 512 [ 42.111579][ T766] loop1: detected capacity change from 0 to 512 [ 42.114180][ T759] loop4: detected capacity change from 0 to 512 [ 42.119809][ T762] loop5: detected capacity change from 0 to 512 [ 42.145077][ T764] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 42.151236][ T772] loop2: detected capacity change from 0 to 512 [ 42.183921][ T772] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 42.201390][ T782] loop4: detected capacity change from 0 to 512 [ 42.212377][ T788] loop3: detected capacity change from 0 to 512 [ 42.224411][ T796] loop0: detected capacity change from 0 to 512 [ 42.232717][ T782] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 42.241475][ T799] loop5: detected capacity change from 0 to 512 [ 42.250908][ T799] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 42.252012][ T802] loop1: detected capacity change from 0 to 512 [ 42.278813][ T802] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 42.281914][ T811] loop3: detected capacity change from 0 to 517 [ 42.308500][ T816] loop4: detected capacity change from 0 to 512 [ 42.316232][ T819] loop2: detected capacity change from 0 to 512 [ 42.330819][ T826] loop5: detected capacity change from 0 to 512 [ 42.336132][ T816] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 42.341737][ T829] loop0: detected capacity change from 0 to 512 [ 42.382636][ T841] loop3: detected capacity change from 0 to 517 [ 42.399293][ T850] loop5: detected capacity change from 0 to 512 [ 42.441475][ T850] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 42.452501][ T871] loop0: detected capacity change from 0 to 512 [ 42.465051][ T850] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/25/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 42.480977][ T871] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 42.491290][ T841] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 42.506945][ T841] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/20/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 42.533536][ T881] loop1: detected capacity change from 0 to 512 [ 42.547594][ T881] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 42.574198][ T903] loop5: detected capacity change from 0 to 512 [ 42.583857][ T900] loop0: detected capacity change from 0 to 518 [ 42.592462][ T896] loop4: detected capacity change from 0 to 519 [ 42.612241][ T900] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 42.619193][ T903] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 42.645000][ T921] loop2: detected capacity change from 0 to 512 [ 42.652996][ T921] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 42.671466][ T926] loop3: detected capacity change from 0 to 512 [ 42.702494][ T935] loop0: detected capacity change from 0 to 518 [ 42.720628][ T951] loop3: detected capacity change from 0 to 512 [ 42.729135][ T942] loop4: detected capacity change from 0 to 512 [ 42.742821][ T956] loop5: detected capacity change from 0 to 512 [ 42.749854][ T959] loop1: detected capacity change from 0 to 512 [ 42.762315][ T942] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 42.786687][ T971] loop0: detected capacity change from 0 to 512 [ 42.791313][ T974] loop2: detected capacity change from 0 to 512 [ 42.841410][ T998] loop5: detected capacity change from 0 to 512 [ 42.850957][ T995] loop1: detected capacity change from 0 to 512 [ 42.867731][ T1011] loop2: detected capacity change from 0 to 512 [ 42.881832][ T1017] loop4: detected capacity change from 0 to 512 [ 42.896192][ T998] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 42.909258][ T1011] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 42.948070][ T1036] loop0: detected capacity change from 0 to 512 [ 42.968331][ T1046] loop2: detected capacity change from 0 to 519 [ 42.982129][ T1053] loop1: detected capacity change from 0 to 512 [ 42.998013][ T1061] loop3: detected capacity change from 0 to 512 [ 43.019583][ T1061] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 43.062497][ T1083] loop1: detected capacity change from 0 to 512 [ 43.085472][ T1088] loop5: detected capacity change from 0 to 512 [ 43.097893][ T1103] loop0: detected capacity change from 0 to 512 [ 43.127558][ T1111] loop4: detected capacity change from 0 to 519 [ 43.130983][ T1115] loop3: detected capacity change from 0 to 512 [ 43.161546][ T1124] loop5: detected capacity change from 0 to 512 [ 43.168950][ T1103] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 43.169253][ T1132] loop2: detected capacity change from 0 to 512 [ 43.192279][ T1103] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/34/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 43.207355][ T1132] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 43.228463][ T1115] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 43.242656][ T1115] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/35/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 43.266469][ T1149] loop1: detected capacity change from 0 to 512 [ 43.290229][ T1149] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 43.308771][ T1161] loop4: detected capacity change from 0 to 512 [ 43.335120][ T1161] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 43.340776][ T1170] loop2: detected capacity change from 0 to 512 [ 43.349770][ T1173] loop0: detected capacity change from 0 to 512 [ 43.365291][ T1170] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 43.378208][ T1179] loop1: detected capacity change from 0 to 512 2025/12/18 06:59:44 executed programs: 249 [ 43.405206][ T1185] loop3: detected capacity change from 0 to 517 [ 43.456881][ T1198] loop2: detected capacity change from 0 to 512 [ 43.481296][ T1216] loop1: detected capacity change from 0 to 512 [ 43.488506][ T1212] loop4: detected capacity change from 0 to 512 [ 43.501736][ T1221] loop5: detected capacity change from 0 to 512 [ 43.518007][ T1227] loop0: detected capacity change from 0 to 518 [ 43.533591][ T1227] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 43.539259][ T1236] loop3: detected capacity change from 0 to 512 [ 43.561433][ T1242] loop2: detected capacity change from 0 to 512 [ 43.605529][ T1256] loop5: detected capacity change from 0 to 519 [ 43.640497][ T1279] loop3: detected capacity change from 0 to 512 [ 43.653846][ T1284] loop4: detected capacity change from 0 to 512 [ 43.658200][ T1273] loop0: detected capacity change from 0 to 512 [ 43.660517][ T1281] loop1: detected capacity change from 0 to 512 [ 43.675411][ T1284] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 43.701547][ T1297] loop2: detected capacity change from 0 to 512 [ 43.724972][ T1306] loop1: detected capacity change from 0 to 512 [ 43.733582][ T1312] loop0: detected capacity change from 0 to 512 [ 43.753474][ T1323] loop4: detected capacity change from 0 to 512 [ 43.770425][ T1297] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 43.790161][ T1332] loop3: detected capacity change from 0 to 512 [ 43.794428][ T1297] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/52/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 43.804807][ T1306] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 43.827893][ T1306] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/50/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 43.852581][ T1341] loop5: detected capacity change from 0 to 512 [ 43.865339][ T1323] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 43.881517][ T1344] loop3: detected capacity change from 0 to 512 [ 43.888598][ T1323] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/51/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 43.938039][ T1344] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 43.938519][ T1361] loop1: detected capacity change from 0 to 512 [ 43.967103][ T1344] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/46/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 43.983696][ T1372] loop0: detected capacity change from 0 to 512 [ 43.990747][ T1367] loop2: detected capacity change from 0 to 512 [ 43.992682][ T1365] loop4: detected capacity change from 0 to 512 [ 44.019468][ T1379] loop1: detected capacity change from 0 to 512 [ 44.026456][ T1376] loop5: detected capacity change from 0 to 519 [ 44.029856][ T1379] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 44.082330][ T1392] loop0: detected capacity change from 0 to 512 [ 44.139295][ T1425] loop5: detected capacity change from 0 to 512 [ 44.157438][ T1437] loop2: detected capacity change from 0 to 519 [ 44.186528][ T1446] loop3: detected capacity change from 0 to 512 [ 44.212663][ T1446] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 44.238956][ T1478] loop1: detected capacity change from 0 to 512 [ 44.336083][ T1494] loop3: detected capacity change from 0 to 512 [ 44.356781][ T1493] blk_update_request: I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 44.374263][ T1515] loop1: detected capacity change from 0 to 512 [ 44.396538][ T1515] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 44.417265][ T1529] loop4: detected capacity change from 0 to 512 [ 44.419424][ T1515] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/61/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 44.428348][ T1531] loop2: detected capacity change from 0 to 512 [ 44.448808][ T1526] loop0: detected capacity change from 0 to 512 [ 44.449419][ T1533] loop3: detected capacity change from 0 to 512 [ 44.465000][ T1535] loop5: detected capacity change from 0 to 512 [ 44.475357][ T1526] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 44.492771][ T1531] EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 44.493238][ T1529] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 44.509549][ T1531] EXT4-fs (loop2): group descriptors corrupted! [ 44.563311][ T1544] loop1: detected capacity change from 0 to 519 [ 44.570826][ T1553] loop2: detected capacity change from 0 to 512 [ 44.580898][ T1556] loop3: detected capacity change from 0 to 512 [ 44.597956][ T1565] loop0: detected capacity change from 0 to 512 [ 44.605915][ T1556] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 44.627222][ T1571] loop5: detected capacity change from 0 to 512 [ 44.636831][ T1565] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 44.652826][ T1565] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/58/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 44.677935][ T1577] loop4: detected capacity change from 0 to 519 [ 44.687711][ T1579] loop2: detected capacity change from 0 to 512 [ 44.706869][ T1585] loop3: detected capacity change from 0 to 512 [ 44.728259][ T1595] loop5: detected capacity change from 0 to 512 [ 44.749034][ T1585] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 44.756325][ T1601] loop0: detected capacity change from 0 to 512 [ 44.779547][ T1609] loop1: detected capacity change from 0 to 512 [ 44.787281][ T1601] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 44.804475][ T1609] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 44.809414][ T1595] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 44.826573][ T1595] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/65/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 44.921924][ T1655] loop4: detected capacity change from 0 to 512 [ 44.952880][ T1687] loop3: detected capacity change from 0 to 512 [ 44.968608][ T1690] loop5: detected capacity change from 0 to 512 [ 45.031040][ T1699] loop0: detected capacity change from 0 to 512 [ 45.031419][ T1698] loop1: detected capacity change from 0 to 512 [ 45.042676][ T1695] blk_update_request: I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 31 prio class 0 [ 45.050326][ T1709] loop5: detected capacity change from 0 to 519 [ 45.076835][ T1715] loop2: detected capacity change from 0 to 512 [ 45.077298][ T1717] loop3: detected capacity change from 0 to 512 [ 45.101780][ T1720] EXT4-fs warning (device loop3): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 45.119443][ T1727] loop4: detected capacity change from 0 to 512 [ 45.126178][ T1717] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 45.134142][ T1715] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 45.165264][ T1717] EXT4-fs (loop3): failed to initialize system zone (-117) [ 45.178726][ T1717] EXT4-fs (loop3): mount failed [ 45.183711][ T1737] loop5: detected capacity change from 0 to 512 [ 45.199056][ T1727] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 45.213264][ T1746] loop1: detected capacity change from 0 to 512 [ 45.271061][ T1765] loop5: detected capacity change from 0 to 519 [ 45.283299][ T1777] loop0: detected capacity change from 0 to 512 [ 45.283604][ T1776] blk_update_request: I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 45.315418][ T1785] loop3: detected capacity change from 0 to 512 [ 45.328544][ T1789] loop4: detected capacity change from 0 to 512 [ 45.366398][ T1796] loop5: detected capacity change from 0 to 519 [ 45.374675][ T1794] blk_update_request: I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 45.376215][ T1800] loop1: detected capacity change from 0 to 512 [ 45.400536][ T1804] loop3: detected capacity change from 0 to 512 [ 45.413345][ T1810] loop4: detected capacity change from 0 to 512 [ 45.415742][ T1812] loop2: detected capacity change from 0 to 512 [ 45.427487][ T1802] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 45.456198][ T1820] loop0: detected capacity change from 0 to 518 [ 45.465581][ T1802] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 45.466176][ T1828] loop3: detected capacity change from 0 to 512 [ 45.482919][ T1802] Buffer I/O error on dev loop2, logical block 0, async page read [ 45.502202][ T1800] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 45.516768][ T1800] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/79/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 45.538975][ T1835] loop5: detected capacity change from 0 to 512 [ 45.544890][ T1834] loop4: detected capacity change from 0 to 512 [ 45.555469][ T1835] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 45.594460][ T1847] loop0: detected capacity change from 0 to 512 [ 45.595503][ T1838] EXT4-fs warning (device loop4): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 45.608371][ T1849] loop2: detected capacity change from 0 to 512 [ 45.615453][ T1834] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 45.622099][ T1853] loop3: detected capacity change from 0 to 512 [ 45.632606][ T1834] EXT4-fs (loop4): failed to initialize system zone (-117) [ 45.639520][ T1839] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 28 prio class 0 [ 45.643965][ T1856] loop1: detected capacity change from 0 to 512 [ 45.652797][ T1834] EXT4-fs (loop4): mount failed [ 45.680519][ T1853] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 45.681084][ T1864] loop5: detected capacity change from 0 to 512 [ 45.701286][ T1853] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/70/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 45.732418][ T1871] loop1: detected capacity change from 0 to 512 [ 45.740018][ T1871] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 45.768328][ T1883] loop3: detected capacity change from 0 to 512 [ 45.768570][ T1876] loop0: detected capacity change from 0 to 518 [ 45.778928][ T1886] loop5: detected capacity change from 0 to 512 [ 45.791206][ T1880] loop2: detected capacity change from 0 to 519 [ 45.791629][ T1888] loop4: detected capacity change from 0 to 512 [ 45.804166][ T1876] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 45.837893][ T1897] loop1: detected capacity change from 0 to 512 [ 45.846752][ T1897] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 45.857015][ T1897] EXT4-fs (loop1): failed to initialize system zone (-117) [ 45.864436][ T1897] EXT4-fs (loop1): mount failed [ 45.883450][ T1906] loop3: detected capacity change from 0 to 512 [ 45.894706][ T1908] loop5: detected capacity change from 0 to 512 [ 45.909109][ T1916] loop0: detected capacity change from 0 to 512 [ 45.928564][ T1916] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 45.940570][ T1928] loop2: detected capacity change from 0 to 512 [ 45.957706][ T1931] loop4: detected capacity change from 0 to 512 [ 45.975826][ T1931] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 45.980602][ T1943] loop0: detected capacity change from 0 to 512 [ 45.998139][ T1949] loop5: detected capacity change from 0 to 512 [ 46.005564][ T1928] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 46.030663][ T1962] loop4: detected capacity change from 0 to 512 [ 46.044239][ T1949] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 46.064729][ T1949] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/82/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 46.099604][ T1966] loop3: detected capacity change from 0 to 512 [ 46.105063][ T1978] loop4: detected capacity change from 0 to 512 [ 46.119400][ T1975] loop0: detected capacity change from 0 to 512 [ 46.144091][ T1978] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 46.157593][ T1978] EXT4-fs (loop4): group descriptors corrupted! [ 46.184217][ T2002] loop2: detected capacity change from 0 to 512 [ 46.184697][ T1998] loop3: detected capacity change from 0 to 512 [ 46.193081][ T2000] loop1: detected capacity change from 0 to 512 [ 46.208800][ T2002] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 46.242336][ T2009] loop0: detected capacity change from 0 to 512 [ 46.275826][ T2000] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 46.275891][ T2026] loop5: detected capacity change from 0 to 512 [ 46.291550][ T2000] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/92/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 46.296713][ T2028] loop4: detected capacity change from 0 to 512 [ 46.317507][ T2022] loop3: detected capacity change from 0 to 517 [ 46.322165][ T2031] loop2: detected capacity change from 0 to 512 [ 46.346529][ T2031] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 46.370326][ T2044] loop1: detected capacity change from 0 to 512 [ 46.380522][ T2043] loop0: detected capacity change from 0 to 512 [ 46.385632][ T2051] loop3: detected capacity change from 0 to 512 [ 46.396746][ T2051] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 46.412759][ T2031] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/89/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 46.431585][ T2044] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 46.447225][ T2028] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 46.462128][ T2043] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 46.474981][ T2051] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/79/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 46.496139][ T2026] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 46.505202][ T2028] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/91/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 46.544809][ T2026] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/84/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 46.580117][ T2065] loop3: detected capacity change from 0 to 512 [ 46.592002][ T2063] loop2: detected capacity change from 0 to 512 [ 46.604119][ T2067] loop0: detected capacity change from 0 to 512 [ 46.608915][ T2070] loop1: detected capacity change from 0 to 512 [ 46.631393][ T2063] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 46.664225][ T2065] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 46.678490][ T2067] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 46.707856][ T2075] loop4: detected capacity change from 0 to 512 [ 46.728272][ T2078] loop5: detected capacity change from 0 to 512 [ 46.748461][ T2067] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/84/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 46.786693][ T2082] loop2: detected capacity change from 0 to 512 [ 46.821064][ T2088] loop5: detected capacity change from 0 to 512 [ 46.836611][ T2094] loop1: detected capacity change from 0 to 512 [ 46.866592][ T2109] loop0: detected capacity change from 0 to 518 [ 46.867462][ T2103] loop4: detected capacity change from 0 to 512 [ 46.905863][ T2088] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 46.913334][ T2109] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 46.927341][ T2113] loop3: detected capacity change from 0 to 512 [ 46.944331][ T2118] loop1: detected capacity change from 0 to 512 [ 46.962942][ T2125] loop2: detected capacity change from 0 to 512 [ 46.976042][ T2128] loop5: detected capacity change from 0 to 519 [ 46.984596][ T2125] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 46.993197][ T2136] loop4: detected capacity change from 0 to 512 [ 47.018275][ T2139] loop0: detected capacity change from 0 to 512 [ 47.029603][ T2138] blk_update_request: I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 47.049723][ T2145] loop3: detected capacity change from 0 to 512 [ 47.152714][ T2188] loop2: detected capacity change from 0 to 512 [ 47.192825][ T2204] loop3: detected capacity change from 0 to 512 [ 47.201500][ T2206] loop5: detected capacity change from 0 to 512 [ 47.201500][ T2200] loop4: detected capacity change from 0 to 512 [ 47.221454][ T2209] loop1: detected capacity change from 0 to 512 [ 47.249235][ T2206] EXT4-fs (loop5): Magic mismatch, very weird! [ 47.273108][ T2218] loop2: detected capacity change from 0 to 512 [ 47.273256][ T2221] loop4: detected capacity change from 0 to 519 [ 47.289473][ T2215] loop0: detected capacity change from 0 to 512 [ 47.350517][ T2209] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 47.365169][ T2230] loop2: detected capacity change from 0 to 512 [ 47.380519][ T2227] loop0: detected capacity change from 0 to 518 [ 47.390110][ T2204] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 47.406937][ T2235] loop4: detected capacity change from 0 to 519 [ 47.424953][ T2209] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/101/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.446461][ T2204] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/89/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.481917][ T2230] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 47.498323][ T2230] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/98/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.526446][ T2253] loop0: detected capacity change from 0 to 512 [ 47.542813][ T2256] loop1: detected capacity change from 0 to 512 [ 47.552453][ T2257] loop5: detected capacity change from 0 to 512 [ 47.564934][ T2235] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 47.586518][ T2235] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/102/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.592814][ T2253] EXT4-fs (loop0): Magic mismatch, very weird! [ 47.612644][ T2257] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 47.630221][ T2257] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/95/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.751145][ T2303] loop1: detected capacity change from 0 to 512 [ 47.769399][ T2292] loop2: detected capacity change from 0 to 512 [ 47.777663][ T2300] loop4: detected capacity change from 0 to 512 [ 47.784425][ T2299] blk_update_request: I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 47.804537][ T2319] loop3: detected capacity change from 0 to 512 [ 47.857520][ T2292] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 47.859573][ T2332] loop0: detected capacity change from 0 to 512 [ 47.878189][ T2292] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/102/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 47.908681][ T2338] loop5: detected capacity change from 0 to 519 [ 47.920759][ T2335] blk_update_request: I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 47.953223][ T2335] blk_update_request: I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 47.964574][ T2335] Buffer I/O error on dev loop5, logical block 0, async page read [ 47.988041][ T2332] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 48.020322][ T2332] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/99/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 48.049356][ T2361] loop4: detected capacity change from 0 to 512 [ 48.055844][ T2358] loop3: detected capacity change from 0 to 512 [ 48.069198][ T2361] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 48.134997][ T2367] loop2: detected capacity change from 0 to 512 [ 48.177596][ T2382] loop3: detected capacity change from 0 to 512 [ 48.197612][ T2388] loop0: detected capacity change from 0 to 512 [ 48.273138][ T2417] loop5: detected capacity change from 0 to 512 [ 48.302370][ T2439] loop0: detected capacity change from 0 to 512 [ 48.354201][ T2454] loop2: detected capacity change from 0 to 519 [ 48.383621][ T2457] loop5: detected capacity change from 0 to 512 2025/12/18 06:59:49 executed programs: 655 [ 48.401400][ T2460] loop1: detected capacity change from 0 to 512 [ 48.407345][ T2463] loop4: detected capacity change from 0 to 512 [ 48.491337][ T2489] loop2: detected capacity change from 0 to 512 [ 48.528097][ T2497] loop3: detected capacity change from 0 to 512 [ 48.528388][ T2512] loop5: detected capacity change from 0 to 512 [ 48.541426][ T2507] loop1: detected capacity change from 0 to 512 [ 48.550544][ T2515] loop4: detected capacity change from 0 to 512 [ 48.578852][ T2515] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 48.602289][ T2512] EXT4-fs (loop5): revision level too high, forcing read-only mode [ 48.627492][ T2512] EXT4-fs (loop5): failed to initialize system zone (-117) [ 48.630650][ T2535] loop3: detected capacity change from 0 to 517 [ 48.653342][ T2529] blk_update_request: I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 48.675391][ T2512] EXT4-fs (loop5): mount failed [ 48.685088][ T2529] blk_update_request: I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 48.700283][ T2529] Buffer I/O error on dev loop3, logical block 0, async page read [ 48.712674][ T2547] loop0: detected capacity change from 0 to 512 [ 48.728054][ T2541] loop4: detected capacity change from 0 to 519 [ 48.751053][ T2546] blk_update_request: I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 48.766023][ T2562] loop2: detected capacity change from 0 to 512 [ 48.776279][ T2557] loop5: detected capacity change from 0 to 519 [ 48.797104][ T2562] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 48.811438][ T2568] loop4: detected capacity change from 0 to 512 [ 48.851470][ T2574] loop0: detected capacity change from 0 to 512 [ 48.851555][ T2580] loop5: detected capacity change from 0 to 512 [ 48.865092][ T2568] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 48.870756][ T2577] loop3: detected capacity change from 0 to 512 [ 48.878983][ T2584] loop1: detected capacity change from 0 to 512 [ 48.891873][ T2579] blk_update_request: I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 48.915641][ T2584] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 48.922730][ T2590] loop2: detected capacity change from 0 to 512 [ 48.935678][ T2590] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 48.977257][ T2600] loop1: detected capacity change from 0 to 512 [ 48.983064][ T2608] loop5: detected capacity change from 0 to 512 [ 48.999372][ T2615] loop3: detected capacity change from 0 to 512 [ 49.033133][ T2623] loop4: detected capacity change from 0 to 512 [ 49.077866][ T2643] loop0: detected capacity change from 0 to 512 [ 49.086243][ T2642] loop1: detected capacity change from 0 to 512 [ 49.130234][ T2623] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 49.145149][ T2648] loop5: detected capacity change from 0 to 512 [ 49.155317][ T2642] EXT4-fs (loop1): Magic mismatch, very weird! [ 49.195582][ T2657] loop3: detected capacity change from 0 to 517 [ 49.211956][ T2648] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 49.213301][ T2643] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 49.231187][ T2623] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/121/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.233500][ T2657] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 49.283519][ T2663] loop2: detected capacity change from 0 to 512 [ 49.304982][ T2663] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 49.340048][ T2681] loop3: detected capacity change from 0 to 512 [ 49.342177][ T2685] loop4: detected capacity change from 0 to 512 [ 49.359152][ T2687] loop1: detected capacity change from 0 to 512 [ 49.373608][ T2697] EXT4-fs warning (device loop3): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 49.376177][ T2690] loop5: detected capacity change from 0 to 512 [ 49.396647][ T2681] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 49.404889][ T2681] EXT4-fs (loop3): failed to initialize system zone (-117) [ 49.412482][ T2681] EXT4-fs (loop3): mount failed [ 49.434932][ T2687] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 49.449160][ T2685] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 49.463719][ T2685] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/122/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.519118][ T2710] loop3: detected capacity change from 0 to 512 [ 49.570727][ T2746] loop4: detected capacity change from 0 to 512 [ 49.593467][ T2751] loop0: detected capacity change from 0 to 512 [ 49.603566][ T2755] loop5: detected capacity change from 0 to 512 [ 49.633070][ T2767] loop2: detected capacity change from 0 to 512 [ 49.633354][ T2766] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 49.707334][ T2799] loop1: detected capacity change from 0 to 519 [ 49.728424][ T2792] loop2: detected capacity change from 0 to 512 [ 49.729803][ T2794] loop5: detected capacity change from 0 to 512 [ 49.777127][ T2794] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 49.778994][ T2814] loop0: detected capacity change from 0 to 512 [ 49.792698][ T2794] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/122/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 49.832171][ T2819] loop4: detected capacity change from 0 to 512 [ 49.946878][ T2792] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 49.985496][ T2792] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/132/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 50.034965][ T2840] loop3: detected capacity change from 0 to 512 [ 50.087946][ T2854] loop1: detected capacity change from 0 to 512 [ 50.110427][ T2864] loop0: detected capacity change from 0 to 512 [ 50.143999][ T2871] loop5: detected capacity change from 0 to 512 [ 50.170367][ T2864] EXT4-fs (loop0): Magic mismatch, very weird! [ 50.234509][ T2903] loop1: detected capacity change from 0 to 512 [ 50.245247][ T2900] loop2: detected capacity change from 0 to 512 [ 50.256883][ T2897] loop3: detected capacity change from 0 to 512 [ 50.287891][ T2903] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 50.329980][ T2937] loop2: detected capacity change from 0 to 512 [ 50.331797][ T2939] loop4: detected capacity change from 0 to 512 [ 50.378280][ T2949] loop3: detected capacity change from 0 to 512 [ 50.410082][ T2954] EXT4-fs warning (device loop4): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 50.422157][ T2939] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 50.433308][ T2956] loop2: detected capacity change from 0 to 512 [ 50.439981][ T2939] EXT4-fs (loop4): failed to initialize system zone (-117) [ 50.448499][ T2939] EXT4-fs (loop4): mount failed [ 50.457066][ T2971] loop3: detected capacity change from 0 to 517 [ 50.467540][ T2971] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 50.516078][ T2978] loop1: detected capacity change from 0 to 512 [ 50.550286][ T2978] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 50.560802][ T2997] loop2: detected capacity change from 0 to 512 [ 50.563654][ T2999] loop4: detected capacity change from 0 to 519 [ 50.598941][ T3010] loop5: detected capacity change from 0 to 512 [ 50.599220][ T3003] blk_update_request: I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 50.615257][ T2997] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 50.630727][ T2997] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/139/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 50.656098][ T3016] loop3: detected capacity change from 0 to 512 [ 50.711960][ T3035] loop0: detected capacity change from 0 to 512 [ 50.728242][ T3041] loop5: detected capacity change from 0 to 512 [ 50.733458][ T3043] loop4: detected capacity change from 0 to 512 [ 50.743650][ T3040] Buffer I/O error on dev loop5, logical block 0, async page read [ 50.751743][ T3040] Buffer I/O error on dev loop5, logical block 0, async page read [ 50.776591][ T3055] loop1: detected capacity change from 0 to 512 [ 50.791185][ T3059] loop3: detected capacity change from 0 to 512 [ 50.829464][ T3074] loop2: detected capacity change from 0 to 512 [ 50.867127][ T3088] loop5: detected capacity change from 0 to 512 [ 50.875759][ T3059] EXT4-fs (loop3): Magic mismatch, very weird! [ 50.909036][ T3088] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 50.961816][ T3094] loop0: detected capacity change from 0 to 512 [ 50.988589][ T3108] loop3: detected capacity change from 0 to 512 [ 50.999688][ T3107] loop5: detected capacity change from 0 to 512 [ 51.033224][ T3124] loop1: detected capacity change from 0 to 512 [ 51.039701][ T3094] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 51.043039][ T3126] loop2: detected capacity change from 0 to 512 [ 51.057473][ T3129] loop4: detected capacity change from 0 to 512 [ 51.067709][ T3094] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/141/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 51.071505][ T3124] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 51.121596][ T3126] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 51.223719][ T3139] loop3: detected capacity change from 0 to 512 [ 51.249671][ T3129] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 51.256564][ T3154] loop5: detected capacity change from 0 to 512 [ 51.270872][ T3129] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/148/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 51.314867][ T3154] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 51.332389][ T3139] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 51.349183][ T3165] loop2: detected capacity change from 0 to 512 [ 51.349980][ T3168] loop1: detected capacity change from 0 to 512 [ 51.359710][ T3139] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/137/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 51.411104][ T3168] EXT4-fs (loop1): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? [ 51.457878][ T3177] loop0: detected capacity change from 0 to 512 [ 51.470404][ T3192] loop2: detected capacity change from 0 to 512 [ 51.498314][ T3189] loop1: detected capacity change from 0 to 519 [ 51.525396][ T3177] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 51.557299][ T3210] EXT4-fs warning (device loop2): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 51.567169][ T3216] loop4: detected capacity change from 0 to 519 [ 51.574233][ T3192] EXT4-fs (loop2): revision level too high, forcing read-only mode [ 51.583625][ T3192] EXT4-fs (loop2): failed to initialize system zone (-117) [ 51.591151][ T3192] EXT4-fs (loop2): mount failed [ 51.598425][ T3216] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 51.627026][ T3222] loop5: detected capacity change from 0 to 512 [ 51.651169][ T3234] loop3: detected capacity change from 0 to 512 [ 51.664620][ T3237] loop1: detected capacity change from 0 to 512 [ 51.700251][ T3247] loop2: detected capacity change from 0 to 512 [ 51.703415][ T3222] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 51.719608][ T3236] Buffer I/O error on dev loop1, logical block 0, async page read [ 51.729679][ T3243] loop4: detected capacity change from 0 to 512 [ 51.736420][ T3222] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/146/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 51.789094][ T3247] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 51.805149][ T3257] EXT4-fs warning (device loop4): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 51.822904][ T3243] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 51.832501][ T3243] EXT4-fs (loop4): failed to initialize system zone (-117) [ 51.840566][ T3243] EXT4-fs (loop4): mount failed [ 51.863036][ T3272] loop0: detected capacity change from 0 to 512 [ 51.888174][ T3276] loop3: detected capacity change from 0 to 512 [ 51.909642][ T3279] loop5: detected capacity change from 0 to 512 [ 51.926382][ T3276] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 51.940916][ T3276] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/147/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 51.971693][ T3296] loop4: detected capacity change from 0 to 512 [ 52.008564][ T3296] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 52.015429][ T3301] loop5: detected capacity change from 0 to 512 [ 52.022889][ T3296] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/153/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 52.072455][ T3315] loop2: detected capacity change from 0 to 512 [ 52.114413][ T3315] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 52.133643][ T3322] loop1: detected capacity change from 0 to 512 [ 52.153485][ T3324] loop0: detected capacity change from 0 to 518 [ 52.166811][ T3327] loop3: detected capacity change from 0 to 517 [ 52.173008][ T3322] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 52.201494][ T3327] EXT4-fs (loop3): Magic mismatch, very weird! [ 52.202400][ T3333] loop5: detected capacity change from 0 to 512 [ 52.250750][ T3346] loop4: detected capacity change from 0 to 512 [ 52.280648][ T3362] loop2: detected capacity change from 0 to 512 [ 52.289153][ T3356] loop0: detected capacity change from 0 to 512 [ 52.289554][ T3355] loop3: detected capacity change from 0 to 512 [ 52.305972][ T3369] loop5: detected capacity change from 0 to 512 [ 52.320959][ T3372] loop1: detected capacity change from 0 to 512 [ 52.335809][ T3372] EXT4-fs (loop1): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 52.345213][ T3372] EXT4-fs (loop1): group descriptors corrupted! [ 52.346717][ T3369] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 52.366309][ T3369] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/151/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 52.439371][ T3381] loop2: detected capacity change from 0 to 512 [ 52.457308][ T3384] loop3: detected capacity change from 0 to 512 [ 52.467747][ T3377] loop0: detected capacity change from 0 to 518 [ 52.468129][ T3390] loop4: detected capacity change from 0 to 512 [ 52.475869][ T3388] loop1: detected capacity change from 0 to 512 [ 52.490916][ T3384] EXT4-fs (loop3): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 52.503450][ T3384] EXT4-fs (loop3): group descriptors corrupted! [ 52.516565][ T3381] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 52.517018][ T3392] loop5: detected capacity change from 0 to 512 [ 52.542084][ T3392] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 52.544539][ T3395] loop4: detected capacity change from 0 to 512 [ 52.582381][ T3388] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 52.598324][ T3388] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/165/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 52.605050][ T3409] loop3: detected capacity change from 0 to 512 [ 52.637550][ T3412] loop0: detected capacity change from 0 to 512 [ 52.692972][ T3412] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 52.693843][ T3409] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 52.703526][ T3419] EXT4-fs warning (device loop0): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 52.719652][ T3409] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/153/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 52.729786][ T3426] loop5: detected capacity change from 0 to 512 [ 52.747403][ T3412] EXT4-fs (loop0): failed to initialize system zone (-117) [ 52.754981][ T3426] EXT4-fs (loop5): Magic mismatch, very weird! [ 52.756180][ T3423] loop4: detected capacity change from 0 to 512 [ 52.778583][ T3412] EXT4-fs (loop0): mount failed [ 52.817769][ T3438] loop2: detected capacity change from 0 to 512 [ 52.856963][ T3443] loop5: detected capacity change from 0 to 512 [ 52.867367][ T3443] EXT4-fs (loop5): Magic mismatch, very weird! [ 52.868758][ T3446] loop0: detected capacity change from 0 to 512 [ 52.882922][ T3446] EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 52.910785][ T3446] EXT4-fs (loop0): group descriptors corrupted! [ 52.911957][ T3452] loop2: detected capacity change from 0 to 512 [ 52.929544][ T3455] loop4: detected capacity change from 0 to 512 [ 52.945155][ T3452] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 53.001658][ T3487] loop2: detected capacity change from 0 to 512 [ 53.004680][ T3482] loop4: detected capacity change from 0 to 512 [ 53.032951][ T3494] loop5: detected capacity change from 0 to 512 [ 53.042840][ T3482] EXT4-fs (loop4): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? [ 53.060191][ T3498] loop3: detected capacity change from 0 to 517 [ 53.063039][ T3506] loop0: detected capacity change from 0 to 512 [ 53.079884][ T3494] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 53.090755][ T3494] EXT4-fs (loop5): group descriptors corrupted! [ 53.113096][ T3513] loop3: detected capacity change from 0 to 512 [ 53.121469][ T3521] loop1: detected capacity change from 0 to 512 [ 53.163099][ T3531] loop0: detected capacity change from 0 to 512 [ 53.169596][ T3537] loop3: detected capacity change from 0 to 517 [ 53.190869][ T3545] loop2: detected capacity change from 0 to 512 [ 53.207066][ T3541] print_req_error: 5 callbacks suppressed [ 53.207080][ T3541] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 53.262776][ T3563] loop4: detected capacity change from 0 to 519 [ 53.267270][ T3560] blk_update_request: I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 53.274663][ T3566] loop3: detected capacity change from 0 to 512 [ 53.317496][ T3576] loop1: detected capacity change from 0 to 512 [ 53.332489][ T3566] EXT4-fs (loop3): Encoding requested by superblock is unknown [ 53.375802][ T3576] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 53.397148][ T3604] loop0: detected capacity change from 0 to 512 2025/12/18 06:59:54 executed programs: 1022 [ 53.423370][ T3618] loop1: detected capacity change from 0 to 512 [ 53.452837][ T3634] loop2: detected capacity change from 0 to 512 [ 53.455885][ T3639] loop4: detected capacity change from 0 to 512 [ 53.469142][ T3642] loop0: detected capacity change from 0 to 512 [ 53.495159][ T3642] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 53.523773][ T3639] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 53.549363][ T3618] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 53.583665][ T3618] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/178/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 53.615982][ T3657] loop4: detected capacity change from 0 to 512 [ 53.631173][ T3660] loop5: detected capacity change from 0 to 512 [ 53.689154][ T3657] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 53.698512][ T3669] loop3: detected capacity change from 0 to 512 [ 53.722412][ T3685] loop2: detected capacity change from 0 to 512 [ 53.724073][ T3687] loop1: detected capacity change from 0 to 512 [ 53.765533][ T3703] loop4: detected capacity change from 0 to 512 [ 53.765958][ T3704] loop0: detected capacity change from 0 to 512 [ 53.773499][ T3685] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 53.797906][ T3685] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/177/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 53.815343][ T3704] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 53.829763][ T3703] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 53.851678][ T3713] loop1: detected capacity change from 0 to 512 [ 53.879019][ T3719] loop5: detected capacity change from 0 to 512 [ 53.885644][ T3713] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 53.889626][ T3722] loop3: detected capacity change from 0 to 517 [ 53.911187][ T3719] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 53.944722][ T3722] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 53.952227][ T3742] loop2: detected capacity change from 0 to 512 [ 53.975397][ T3722] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/168/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 53.990975][ T3748] loop0: detected capacity change from 0 to 512 [ 54.001253][ T3742] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 54.037907][ T3748] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 54.052407][ T3748] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/179/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 54.093467][ T3769] loop3: detected capacity change from 0 to 512 [ 54.130021][ T3769] EXT4-fs (loop3): Magic mismatch, very weird! [ 54.133532][ T3775] loop5: detected capacity change from 0 to 519 [ 54.153680][ T3778] loop1: detected capacity change from 0 to 512 [ 54.190680][ T3775] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 54.195607][ T3793] loop4: detected capacity change from 0 to 512 [ 54.200417][ T3790] loop2: detected capacity change from 0 to 512 [ 54.223927][ T3793] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 54.259948][ T3793] EXT4-fs (loop4): group descriptors corrupted! [ 54.293461][ T3809] loop1: detected capacity change from 0 to 512 [ 54.301822][ T3817] loop3: detected capacity change from 0 to 512 [ 54.318151][ T3823] loop2: detected capacity change from 0 to 512 [ 54.366760][ T3836] loop0: detected capacity change from 0 to 512 [ 54.374414][ T3838] loop4: detected capacity change from 0 to 519 [ 54.379987][ T3836] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 54.422451][ T3848] loop1: detected capacity change from 0 to 512 [ 54.435458][ T3850] loop3: detected capacity change from 0 to 512 [ 54.443280][ T3845] loop5: detected capacity change from 0 to 519 [ 54.469375][ T3848] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 54.492818][ T3850] EXT4-fs (loop3): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 54.523121][ T3871] loop0: detected capacity change from 0 to 512 [ 54.539080][ T3869] loop2: detected capacity change from 0 to 512 [ 54.545778][ T3865] loop5: detected capacity change from 0 to 519 [ 54.561428][ T3850] EXT4-fs (loop3): group descriptors corrupted! [ 54.569981][ T3883] loop1: detected capacity change from 0 to 512 [ 54.606253][ T3871] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 54.620653][ T3871] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/186/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 54.652563][ T3890] loop1: detected capacity change from 0 to 512 [ 54.657403][ T3891] loop4: detected capacity change from 0 to 512 [ 54.730465][ T3899] loop5: detected capacity change from 0 to 512 [ 54.742429][ T3898] EXT4-fs warning (device loop1): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 54.754744][ T3890] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 54.797998][ T3890] EXT4-fs (loop1): failed to initialize system zone (-117) [ 54.850777][ T3890] EXT4-fs (loop1): mount failed [ 54.856328][ T3899] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 54.870291][ T3919] loop3: detected capacity change from 0 to 512 [ 54.891023][ T3922] loop0: detected capacity change from 0 to 512 [ 54.901107][ T3928] loop2: detected capacity change from 0 to 512 [ 54.924724][ T3931] loop4: detected capacity change from 0 to 519 [ 54.931285][ T3919] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 54.949008][ T3928] EXT4-fs (loop2): Magic mismatch, very weird! [ 54.986271][ T3939] loop5: detected capacity change from 0 to 512 [ 54.997697][ T3949] loop1: detected capacity change from 0 to 512 [ 55.024483][ T3952] loop0: detected capacity change from 0 to 512 [ 55.026814][ T3947] loop3: detected capacity change from 0 to 517 [ 55.037710][ T3942] loop2: detected capacity change from 0 to 519 [ 55.043768][ T3947] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 55.044400][ T3941] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 55.055643][ T3949] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 55.078801][ T3949] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/191/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 55.095182][ T3964] loop4: detected capacity change from 0 to 512 [ 55.115030][ T3967] loop5: detected capacity change from 0 to 512 [ 55.115677][ T3973] loop3: detected capacity change from 0 to 512 [ 55.121636][ T3964] EXT4-fs (loop4): Magic mismatch, very weird! [ 55.169057][ T3967] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 55.251513][ T3982] loop2: detected capacity change from 0 to 512 [ 55.277376][ T3985] loop4: detected capacity change from 0 to 519 [ 55.292938][ T3996] loop1: detected capacity change from 0 to 512 [ 55.306885][ T3988] loop0: detected capacity change from 0 to 512 [ 55.313962][ T3992] loop5: detected capacity change from 0 to 512 [ 55.330622][ T3988] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 55.339611][ T3985] EXT4-fs (loop4): Magic mismatch, very weird! [ 55.349382][ T3973] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 55.376873][ T3992] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 55.378526][ T3996] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 55.391093][ T3973] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/178/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 55.421071][ T4002] loop4: detected capacity change from 0 to 512 [ 55.439815][ T4002] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 55.454189][ T4011] loop1: detected capacity change from 0 to 512 [ 55.458845][ T4009] loop2: detected capacity change from 0 to 512 [ 55.501255][ T4011] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 55.560596][ T4030] loop3: detected capacity change from 0 to 512 [ 55.565206][ T4032] loop0: detected capacity change from 0 to 512 [ 55.656424][ T4071] loop1: detected capacity change from 0 to 512 [ 55.668730][ T4079] loop0: detected capacity change from 0 to 512 [ 55.668730][ T4078] loop5: detected capacity change from 0 to 512 [ 55.670160][ T4079] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 55.700469][ T4059] loop3: detected capacity change from 0 to 517 [ 55.707050][ T4071] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 55.768430][ T4101] loop3: detected capacity change from 0 to 512 [ 55.789744][ T4112] loop4: detected capacity change from 0 to 512 [ 55.804654][ T4101] EXT4-fs (loop3): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 55.825249][ T4127] loop1: detected capacity change from 0 to 512 [ 55.834169][ T4101] EXT4-fs (loop3): group descriptors corrupted! [ 55.858483][ T4127] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 55.863334][ T4112] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 55.923269][ T4152] loop4: detected capacity change from 0 to 512 [ 55.948244][ T4144] loop2: detected capacity change from 0 to 519 [ 55.962421][ T4162] loop3: detected capacity change from 0 to 512 [ 56.072692][ T4196] loop0: detected capacity change from 0 to 518 [ 56.083039][ T4193] loop2: detected capacity change from 0 to 512 [ 56.098305][ T4201] loop3: detected capacity change from 0 to 512 [ 56.117182][ T4196] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 56.173086][ T4223] loop4: detected capacity change from 0 to 519 [ 56.182621][ T4228] loop0: detected capacity change from 0 to 512 [ 56.184167][ T4231] loop2: detected capacity change from 0 to 512 [ 56.214968][ T4231] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 56.233051][ T4243] loop5: detected capacity change from 0 to 519 [ 56.252355][ T4237] loop1: detected capacity change from 0 to 512 [ 56.280035][ T4243] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 56.301506][ T4237] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 56.320886][ T4268] loop3: detected capacity change from 0 to 512 [ 56.323538][ T4265] loop0: detected capacity change from 0 to 518 [ 56.335873][ T4262] loop2: detected capacity change from 0 to 519 [ 56.378260][ T4265] EXT4-fs (loop0): Encoding requested by superblock is unknown [ 56.393681][ T4279] loop4: detected capacity change from 0 to 519 [ 56.393982][ T4278] blk_update_request: I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 56.433014][ T4294] loop2: detected capacity change from 0 to 512 [ 56.433392][ T4292] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 31 prio class 0 [ 56.453678][ T4285] loop3: detected capacity change from 0 to 512 [ 56.475303][ T4298] loop5: detected capacity change from 0 to 512 [ 56.515990][ T4310] loop4: detected capacity change from 0 to 512 [ 56.547199][ T4285] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 56.547225][ T4322] loop1: detected capacity change from 0 to 512 [ 56.564015][ T4326] loop2: detected capacity change from 0 to 512 [ 56.568764][ T4298] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 56.583819][ T4285] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/194/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 56.600297][ T4310] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 56.605822][ T4298] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/205/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 56.636475][ T4329] loop0: detected capacity change from 0 to 512 [ 56.666839][ T4333] loop1: detected capacity change from 0 to 512 [ 56.666928][ T4335] loop2: detected capacity change from 0 to 512 [ 56.683068][ T4335] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 56.701107][ T4339] loop5: detected capacity change from 0 to 512 [ 56.712330][ T4333] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 56.727401][ T4339] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 56.728805][ T4341] loop4: detected capacity change from 0 to 512 [ 56.759605][ T4351] loop2: detected capacity change from 0 to 512 [ 56.776803][ T4347] loop1: detected capacity change from 0 to 519 [ 56.800295][ T4362] loop3: detected capacity change from 0 to 512 [ 56.805676][ T4365] loop0: detected capacity change from 0 to 512 [ 56.829802][ T4365] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 56.850375][ T4368] loop1: detected capacity change from 0 to 512 [ 56.900780][ T4387] loop3: detected capacity change from 0 to 512 [ 56.911018][ T4392] loop0: detected capacity change from 0 to 512 [ 56.921612][ T4398] loop5: detected capacity change from 0 to 512 [ 56.957020][ T4398] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 56.967819][ T4387] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 56.985077][ T4387] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/198/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 56.989824][ T4401] loop1: detected capacity change from 0 to 519 [ 57.020295][ T4416] loop0: detected capacity change from 0 to 512 [ 57.025126][ T4420] loop4: detected capacity change from 0 to 512 [ 57.032107][ T4422] loop2: detected capacity change from 0 to 512 [ 57.040017][ T4420] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 57.085412][ T4433] loop4: detected capacity change from 0 to 512 [ 57.096507][ T4429] loop5: detected capacity change from 0 to 519 [ 57.104996][ T4422] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 57.123920][ T4416] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 57.169898][ T4436] loop3: detected capacity change from 0 to 517 [ 57.183687][ T4422] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/217/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 57.184350][ T4401] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 57.199128][ T4433] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 57.220028][ T4416] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/218/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 57.236551][ T4401] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/214/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 57.260888][ T4436] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 57.272201][ T4429] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 57.279499][ T4436] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/199/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 57.320543][ T4429] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/209/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 57.405276][ T4456] loop0: detected capacity change from 0 to 518 [ 57.451680][ T4456] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 57.466410][ T4461] loop4: detected capacity change from 0 to 512 [ 57.486159][ T4467] loop2: detected capacity change from 0 to 512 [ 57.504137][ T4467] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 57.533770][ T4464] loop1: detected capacity change from 0 to 512 [ 57.546346][ T4464] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 57.554816][ T4473] loop3: detected capacity change from 0 to 517 [ 57.561634][ T4480] loop0: detected capacity change from 0 to 512 [ 57.566250][ T4483] loop5: detected capacity change from 0 to 512 [ 57.575863][ T4477] loop4: detected capacity change from 0 to 512 [ 57.630185][ T4496] EXT4-fs warning (device loop5): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 57.651330][ T4483] EXT4-fs (loop5): revision level too high, forcing read-only mode [ 57.658024][ T4500] loop1: detected capacity change from 0 to 512 [ 57.665708][ T4477] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 57.672773][ T4483] EXT4-fs (loop5): failed to initialize system zone (-117) [ 57.680210][ T4477] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/221/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 57.706236][ T4483] EXT4-fs (loop5): mount failed [ 57.714672][ T4503] loop3: detected capacity change from 0 to 512 [ 57.731537][ T4512] loop0: detected capacity change from 0 to 512 [ 57.736447][ T4510] loop2: detected capacity change from 0 to 512 [ 57.746829][ T4512] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 57.764993][ T4510] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 57.789614][ T4515] loop5: detected capacity change from 0 to 512 [ 57.812592][ T4524] loop1: detected capacity change from 0 to 512 [ 57.842887][ T4537] loop4: detected capacity change from 0 to 512 [ 57.846547][ T4538] loop5: detected capacity change from 0 to 512 [ 57.852057][ T4534] loop3: detected capacity change from 0 to 512 [ 57.881125][ T4537] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 57.920858][ T4534] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 57.929924][ T4534] EXT4-fs (loop3): failed to initialize system zone (-117) [ 57.944142][ T4534] EXT4-fs (loop3): mount failed [ 57.944309][ T4566] loop0: detected capacity change from 0 to 512 [ 57.959615][ T4568] loop1: detected capacity change from 0 to 512 [ 57.993515][ T4574] loop2: detected capacity change from 0 to 512 [ 58.039676][ T4587] loop1: detected capacity change from 0 to 512 [ 58.063033][ T4596] loop5: detected capacity change from 0 to 512 [ 58.063334][ T4595] blk_update_request: I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 58.087795][ T4598] loop4: detected capacity change from 0 to 512 [ 58.095802][ T4566] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/225/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 58.097863][ T4587] EXT4-fs (loop1): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 58.136278][ T4587] EXT4-fs (loop1): group descriptors corrupted! [ 58.152867][ T4604] loop3: detected capacity change from 0 to 512 [ 58.171308][ T4604] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 58.174473][ T4607] loop2: detected capacity change from 0 to 512 [ 58.205735][ T4598] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/225/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 58.207197][ T4615] loop0: detected capacity change from 0 to 512 [ 58.252430][ T4607] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/228/file0 supports timestamps until 2038-01-19 (0x7fffffff) 2025/12/18 06:59:59 executed programs: 1347 [ 58.374415][ T4637] loop0: detected capacity change from 0 to 512 [ 58.382506][ T4640] loop4: detected capacity change from 0 to 512 [ 58.407350][ T4647] loop5: detected capacity change from 0 to 512 [ 58.463606][ T4656] loop1: detected capacity change from 0 to 512 [ 58.551979][ T4692] loop4: detected capacity change from 0 to 512 [ 58.568218][ T4696] loop2: detected capacity change from 0 to 512 [ 58.598427][ T4702] loop5: detected capacity change from 0 to 512 [ 58.607804][ T4706] loop1: detected capacity change from 0 to 512 [ 58.653510][ T4702] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 58.654866][ T4706] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 58.683347][ T4725] loop0: detected capacity change from 0 to 512 [ 58.725093][ T4725] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 58.747985][ T4737] loop4: detected capacity change from 0 to 512 [ 58.763246][ T4743] loop2: detected capacity change from 0 to 512 [ 58.763246][ T4742] loop3: detected capacity change from 0 to 512 [ 58.828694][ T4743] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/235/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 58.850786][ T4766] loop5: detected capacity change from 0 to 512 [ 58.853598][ T4771] loop0: detected capacity change from 0 to 512 [ 58.868837][ T4773] loop4: detected capacity change from 0 to 512 [ 58.870132][ T4774] loop1: detected capacity change from 0 to 512 [ 58.903309][ T4773] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 58.911334][ T4773] EXT4-fs (loop4): failed to initialize system zone (-117) [ 58.912939][ T4771] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 58.950373][ T4786] loop5: detected capacity change from 0 to 512 [ 58.951171][ T4771] EXT4-fs (loop0): failed to initialize system zone (-117) [ 58.960350][ T4788] loop3: detected capacity change from 0 to 512 [ 58.964500][ T4771] EXT4-fs (loop0): mount failed [ 58.977422][ T4773] EXT4-fs (loop4): mount failed [ 58.991392][ T4791] loop1: detected capacity change from 0 to 512 [ 59.005885][ T4791] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 59.034685][ T4795] loop2: detected capacity change from 0 to 512 [ 59.036226][ T4788] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 59.050668][ T4797] loop0: detected capacity change from 0 to 512 [ 59.072558][ T4795] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 59.090506][ T4797] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 59.101205][ T4809] loop5: detected capacity change from 0 to 512 [ 59.123862][ T4815] loop4: detected capacity change from 0 to 519 [ 59.130537][ T4809] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 59.166267][ T4812] loop2: detected capacity change from 0 to 519 [ 59.166829][ T4821] loop1: detected capacity change from 0 to 512 [ 59.216882][ T4836] loop5: detected capacity change from 0 to 512 [ 59.224867][ T4821] EXT4-fs (loop1): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 59.231255][ T4834] loop4: detected capacity change from 0 to 512 [ 59.235709][ T4821] EXT4-fs (loop1): group descriptors corrupted! [ 59.285727][ T4849] loop0: detected capacity change from 0 to 518 [ 59.297505][ T4851] loop3: detected capacity change from 0 to 512 [ 59.301710][ T4849] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 59.317453][ T4854] loop5: detected capacity change from 0 to 512 [ 59.324851][ T4847] loop2: detected capacity change from 0 to 512 [ 59.356641][ T4851] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 59.382027][ T4854] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 59.438758][ T4876] loop2: detected capacity change from 0 to 512 [ 59.452666][ T4897] loop3: detected capacity change from 0 to 512 [ 59.466379][ T4893] loop5: detected capacity change from 0 to 519 [ 59.468890][ T4900] loop4: detected capacity change from 0 to 512 [ 59.474723][ T4892] blk_update_request: I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 59.501922][ T4897] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 59.535904][ T4900] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 59.536350][ T4909] loop0: detected capacity change from 0 to 512 [ 59.564737][ T4917] loop1: detected capacity change from 0 to 512 [ 59.598059][ T4923] loop2: detected capacity change from 0 to 512 [ 59.620784][ T4926] loop1: detected capacity change from 0 to 512 [ 59.659022][ T4942] loop3: detected capacity change from 0 to 512 [ 59.663813][ T4923] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 59.683753][ T4955] loop5: detected capacity change from 0 to 512 [ 59.684589][ T4952] EXT4-fs warning (device loop1): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 59.692390][ T4958] loop0: detected capacity change from 0 to 518 [ 59.712025][ T4957] blk_update_request: I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 59.724554][ T4926] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 59.733001][ T4926] EXT4-fs (loop1): failed to initialize system zone (-117) [ 59.741140][ T4926] EXT4-fs (loop1): mount failed [ 59.744432][ T4955] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 59.806194][ T4974] loop0: detected capacity change from 0 to 512 [ 59.845064][ T4992] loop5: detected capacity change from 0 to 512 [ 59.857286][ T4994] loop4: detected capacity change from 0 to 512 [ 59.865413][ T4999] loop2: detected capacity change from 0 to 512 [ 59.867079][ T5001] loop3: detected capacity change from 0 to 512 [ 59.875880][ T4998] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 59.901647][ T5009] EXT4-fs warning (device loop4): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 59.914113][ T5015] loop0: detected capacity change from 0 to 512 [ 59.921444][ T4994] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 59.930647][ T5012] loop1: detected capacity change from 0 to 512 [ 59.932251][ T4994] EXT4-fs (loop4): failed to initialize system zone (-117) [ 59.947647][ T4994] EXT4-fs (loop4): mount failed [ 59.959858][ T5019] loop5: detected capacity change from 0 to 512 [ 59.983984][ T5027] loop3: detected capacity change from 0 to 512 [ 59.990823][ T5030] loop2: detected capacity change from 0 to 512 [ 60.011996][ T5037] loop4: detected capacity change from 0 to 512 [ 60.024313][ T5034] loop0: detected capacity change from 0 to 512 [ 60.046351][ T5034] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 60.053183][ T5040] loop1: detected capacity change from 0 to 512 [ 60.060224][ T5041] loop5: detected capacity change from 0 to 512 [ 60.070565][ T5030] EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 60.081240][ T5037] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 60.082436][ T5040] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 60.089219][ T5030] EXT4-fs (loop2): group descriptors corrupted! [ 60.104096][ T5027] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/232/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 60.141782][ T5048] loop5: detected capacity change from 0 to 519 [ 60.142567][ T5051] loop4: detected capacity change from 0 to 512 [ 60.167750][ T5054] loop2: detected capacity change from 0 to 512 [ 60.181260][ T5048] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 60.209019][ T5065] loop1: detected capacity change from 0 to 512 [ 60.238191][ T5065] EXT4-fs (loop1): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 60.252642][ T5065] EXT4-fs (loop1): group descriptors corrupted! [ 60.278453][ T5088] loop0: detected capacity change from 0 to 512 [ 60.279049][ T5092] loop5: detected capacity change from 0 to 512 [ 60.298322][ T5095] loop3: detected capacity change from 0 to 512 [ 60.330095][ T5108] loop0: detected capacity change from 0 to 512 [ 60.389448][ T5108] EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 60.403969][ T5092] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/241/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 60.408959][ T5108] EXT4-fs (loop0): group descriptors corrupted! [ 60.479537][ T5128] loop4: detected capacity change from 0 to 512 [ 60.494391][ T5134] loop0: detected capacity change from 0 to 512 [ 60.519766][ T5146] loop2: detected capacity change from 0 to 512 [ 60.548171][ T5134] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/260/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 60.549485][ T5146] EXT4-fs (loop2): revision level too high, forcing read-only mode [ 60.577459][ T5157] loop4: detected capacity change from 0 to 512 [ 60.583836][ T5146] EXT4-fs (loop2): failed to initialize system zone (-117) [ 60.598286][ T5159] loop5: detected capacity change from 0 to 512 [ 60.607016][ T5146] EXT4-fs (loop2): mount failed [ 60.619655][ T5157] EXT4-fs (loop4): Magic mismatch, very weird! [ 60.642059][ T5159] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 60.683806][ T5165] loop3: detected capacity change from 0 to 512 [ 60.711212][ T5175] loop1: detected capacity change from 0 to 512 [ 60.733599][ T5175] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 60.744636][ T5173] loop5: detected capacity change from 0 to 512 [ 60.748887][ T5186] loop2: detected capacity change from 0 to 512 [ 60.755799][ T5183] loop4: detected capacity change from 0 to 512 [ 60.773613][ T5193] loop0: detected capacity change from 0 to 512 [ 60.790370][ T5195] loop3: detected capacity change from 0 to 512 [ 60.833564][ T5209] loop0: detected capacity change from 0 to 512 [ 60.841181][ T5186] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/257/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 60.846866][ T5219] loop4: detected capacity change from 0 to 512 [ 60.919682][ T5219] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/258/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 60.942670][ T5230] loop3: detected capacity change from 0 to 512 [ 60.952272][ T5232] loop1: detected capacity change from 0 to 512 [ 60.969575][ T5230] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 60.970197][ T5234] loop5: detected capacity change from 0 to 512 [ 60.992373][ T5232] EXT4-fs (loop1): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 61.007838][ T5232] EXT4-fs (loop1): group descriptors corrupted! [ 61.061503][ T5244] loop0: detected capacity change from 0 to 512 [ 61.122731][ T5263] loop1: detected capacity change from 0 to 512 [ 61.165580][ T5275] loop5: detected capacity change from 0 to 512 [ 61.171414][ T5244] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/266/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 61.189919][ T5279] loop3: detected capacity change from 0 to 512 [ 61.200687][ T5282] loop2: detected capacity change from 0 to 512 [ 61.211263][ T5285] loop4: detected capacity change from 0 to 512 [ 61.230849][ T5282] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 61.239198][ T5275] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/247/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 61.301111][ T5301] loop4: detected capacity change from 0 to 512 [ 61.321719][ T5306] loop0: detected capacity change from 0 to 512 [ 61.323250][ T5309] loop3: detected capacity change from 0 to 512 [ 61.336779][ T5312] loop1: detected capacity change from 0 to 512 [ 61.349966][ T5314] loop2: detected capacity change from 0 to 512 [ 61.362973][ T5317] loop5: detected capacity change from 0 to 512 [ 61.365258][ T5309] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 61.378389][ T5314] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 61.393993][ T5312] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/260/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 61.399014][ T5325] loop4: detected capacity change from 0 to 512 [ 61.500639][ T5341] loop1: detected capacity change from 0 to 512 [ 61.505476][ T5340] loop3: detected capacity change from 0 to 512 [ 61.507882][ T5334] loop2: detected capacity change from 0 to 512 [ 61.530980][ T5346] loop4: detected capacity change from 0 to 512 [ 61.574599][ T5341] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 61.597959][ T5362] loop3: detected capacity change from 0 to 517 [ 61.628987][ T5334] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/264/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 61.654049][ T5376] loop4: detected capacity change from 0 to 512 [ 61.671252][ T5383] loop3: detected capacity change from 0 to 512 [ 61.713433][ T5376] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 61.723825][ T5390] loop1: detected capacity change from 0 to 128 [ 61.753919][ T5390] EXT4-fs (loop1): Unrecognized mount option "nosuid=0x000000000000ee00" or missing value [ 61.814819][ T5423] loop0: detected capacity change from 0 to 512 [ 61.875913][ T5447] loop1: detected capacity change from 0 to 512 [ 61.884809][ T5442] EXT4-fs warning (device loop0): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 61.891683][ T5451] loop3: detected capacity change from 0 to 512 [ 61.902487][ T5423] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 61.929065][ T5451] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 61.952180][ T5460] loop2: detected capacity change from 0 to 519 [ 61.962048][ T5423] EXT4-fs (loop0): failed to initialize system zone (-117) [ 61.969970][ T5423] EXT4-fs (loop0): mount failed [ 62.005340][ T5460] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/269/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 62.048978][ T5469] loop4: detected capacity change from 0 to 519 [ 62.075046][ T5469] EXT4-fs (loop4): Magic mismatch, very weird! [ 62.096507][ T5478] loop0: detected capacity change from 0 to 512 [ 62.097239][ T5484] loop5: detected capacity change from 0 to 512 [ 62.108714][ T5486] loop2: detected capacity change from 0 to 512 [ 62.122001][ T5490] loop1: detected capacity change from 0 to 512 [ 62.136416][ T5493] loop3: detected capacity change from 0 to 512 [ 62.151844][ T5490] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 62.169950][ T5493] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/258/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 62.173232][ T5486] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/270/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 62.222080][ T5509] loop4: detected capacity change from 0 to 512 [ 62.225282][ T5500] loop1: detected capacity change from 0 to 519 [ 62.236682][ T5507] loop5: detected capacity change from 0 to 512 [ 62.246096][ T5509] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 62.261382][ T5507] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 62.301537][ T5512] loop3: detected capacity change from 0 to 512 [ 62.313293][ T5516] loop2: detected capacity change from 0 to 512 [ 62.325802][ T5518] loop0: detected capacity change from 0 to 512 [ 62.343334][ T5518] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 62.384626][ T5521] loop2: detected capacity change from 0 to 512 [ 62.434011][ T5541] loop5: detected capacity change from 0 to 512 [ 62.438307][ T5545] loop3: detected capacity change from 0 to 512 [ 62.444108][ T5547] loop0: detected capacity change from 0 to 512 [ 62.463067][ T5542] loop4: detected capacity change from 0 to 512 [ 62.474900][ T5547] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 62.485796][ T5541] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 62.505048][ T5542] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 62.523374][ T5560] loop2: detected capacity change from 0 to 512 [ 62.543698][ T5566] loop0: detected capacity change from 0 to 512 [ 62.594897][ T5560] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 62.637362][ T5582] loop0: detected capacity change from 0 to 518 [ 62.647166][ T5592] loop4: detected capacity change from 0 to 512 [ 62.658386][ T5597] loop1: detected capacity change from 0 to 512 [ 62.675166][ T5592] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 62.689347][ T5605] loop3: detected capacity change from 0 to 512 [ 62.692591][ T5608] loop2: detected capacity change from 0 to 512 [ 62.714705][ T5611] loop5: detected capacity change from 0 to 512 [ 62.737864][ T5611] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 62.741629][ T5597] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/275/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 62.792204][ T5625] loop0: detected capacity change from 0 to 512 [ 62.793099][ T5627] loop4: detected capacity change from 0 to 512 [ 62.807280][ T5632] loop3: detected capacity change from 0 to 512 [ 62.844337][ T5647] loop4: detected capacity change from 0 to 512 [ 62.862848][ T5654] loop3: detected capacity change from 0 to 512 [ 62.872846][ T5657] loop0: detected capacity change from 0 to 512 [ 62.890767][ T5647] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 62.904497][ T5668] loop2: detected capacity change from 0 to 512 [ 62.909414][ T5654] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/267/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 62.912352][ T5665] loop1: detected capacity change from 0 to 512 [ 62.941740][ T5673] loop5: detected capacity change from 0 to 512 [ 62.970315][ T5677] loop3: detected capacity change from 0 to 512 [ 62.980516][ T5665] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 62.993480][ T5685] loop0: detected capacity change from 0 to 512 [ 63.015451][ T5691] loop3: detected capacity change from 0 to 512 [ 63.026651][ T5691] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 63.038997][ T5685] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/290/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 63.079269][ T5706] loop4: detected capacity change from 0 to 512 [ 63.082911][ T5708] loop2: detected capacity change from 0 to 512 [ 63.132945][ T5717] loop1: detected capacity change from 0 to 512 [ 63.148281][ T5720] loop5: detected capacity change from 0 to 512 [ 63.194958][ T5720] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 63.202438][ T5706] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 63.229024][ T5726] loop2: detected capacity change from 0 to 519 [ 63.231879][ T5733] loop0: detected capacity change from 0 to 512 [ 63.239625][ T5717] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 63.294690][ T5740] loop0: detected capacity change from 0 to 512 [ 63.311582][ T5745] loop3: detected capacity change from 0 to 512 [ 63.324679][ T5748] loop4: detected capacity change from 0 to 519 [ 63.333105][ T5745] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 63.352790][ T5726] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/281/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 63.378293][ T5761] loop1: detected capacity change from 0 to 512 [ 63.395260][ T5751] loop5: detected capacity change from 0 to 512 [ 63.396350][ T5740] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/292/file0 supports timestamps until 2038-01-19 (0x7fffffff) 2025/12/18 07:00:04 executed programs: 1698 [ 63.443588][ T5748] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/285/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 63.478048][ T5770] loop3: detected capacity change from 0 to 512 [ 63.497156][ T5775] loop5: detected capacity change from 0 to 512 [ 63.517285][ T5778] loop2: detected capacity change from 0 to 512 [ 63.526244][ T5775] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 63.526392][ T5770] EXT4-fs (loop3): Magic mismatch, very weird! [ 63.537245][ T5775] EXT4-fs (loop5): group descriptors corrupted! [ 63.550108][ T5781] loop1: detected capacity change from 0 to 512 [ 63.550116][ T5778] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 63.590828][ T5781] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/283/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 63.629920][ T5801] loop3: detected capacity change from 0 to 512 [ 63.676775][ T5811] loop5: detected capacity change from 0 to 512 [ 63.681148][ T5810] EXT4-fs warning (device loop3): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 63.697028][ T5813] loop1: detected capacity change from 0 to 512 [ 63.700990][ T5817] loop0: detected capacity change from 0 to 512 [ 63.721661][ T5815] loop4: detected capacity change from 0 to 512 [ 63.732073][ T5801] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 63.740204][ T5815] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 63.740273][ T5801] EXT4-fs (loop3): failed to initialize system zone (-117) [ 63.754467][ T5801] EXT4-fs (loop3): mount failed [ 63.762218][ T5821] loop2: detected capacity change from 0 to 512 [ 63.769529][ T5811] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 63.780028][ T5821] EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? [ 63.811369][ T5813] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/284/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 63.860488][ T5837] loop4: detected capacity change from 0 to 512 [ 63.900473][ T5846] loop5: detected capacity change from 0 to 512 [ 63.919173][ T5853] loop3: detected capacity change from 0 to 512 [ 63.922775][ T5850] loop0: detected capacity change from 0 to 512 [ 63.941761][ T5837] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 63.950683][ T5837] EXT4-fs (loop4): failed to initialize system zone (-117) [ 63.954204][ T5853] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 63.958115][ T5837] EXT4-fs (loop4): mount failed [ 63.981051][ T5859] loop1: detected capacity change from 0 to 512 [ 63.992609][ T5846] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 64.006125][ T5859] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 64.023021][ T5866] loop2: detected capacity change from 0 to 512 [ 64.076419][ T5872] loop4: detected capacity change from 0 to 512 [ 64.113561][ T5892] loop0: detected capacity change from 0 to 512 [ 64.121913][ T5886] loop1: detected capacity change from 0 to 519 [ 64.132826][ T5896] loop5: detected capacity change from 0 to 512 [ 64.142659][ T5866] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/290/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 64.167055][ T5900] loop3: detected capacity change from 0 to 512 [ 64.180668][ T5896] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 64.188306][ T5900] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 64.188553][ T5886] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 64.203649][ T5892] EXT4-fs (loop0): Magic mismatch, very weird! [ 64.227850][ T5872] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/290/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 64.293106][ T5907] loop5: detected capacity change from 0 to 512 [ 64.293224][ T5911] loop0: detected capacity change from 0 to 512 [ 64.308921][ T5907] EXT4-fs (loop5): Encoding requested by superblock is unknown [ 64.312581][ T5921] loop1: detected capacity change from 0 to 512 [ 64.338789][ T5927] loop2: detected capacity change from 0 to 512 [ 64.346384][ T5919] loop4: detected capacity change from 0 to 512 [ 64.359821][ T5927] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 64.387857][ T5921] EXT4-fs (loop1): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? [ 64.407854][ T5911] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/303/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 64.486645][ T5969] loop2: detected capacity change from 0 to 512 [ 64.540360][ T5991] loop0: detected capacity change from 0 to 512 [ 64.562411][ T5995] loop2: detected capacity change from 0 to 519 [ 64.578980][ T5991] EXT4-fs (loop0): failed to initialize system zone (-117) [ 64.586347][ T5991] EXT4-fs (loop0): mount failed [ 64.613062][ T6012] loop4: detected capacity change from 0 to 512 [ 64.618808][ T6018] loop1: detected capacity change from 0 to 512 [ 64.619627][ T6015] loop3: detected capacity change from 0 to 512 [ 64.641405][ T6015] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 64.659712][ T6012] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/297/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 64.688936][ T6032] loop5: detected capacity change from 0 to 512 [ 64.707018][ T6044] loop2: detected capacity change from 0 to 519 [ 64.714279][ T6041] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 64.750737][ T6056] loop5: detected capacity change from 0 to 512 [ 64.760739][ T6050] loop0: detected capacity change from 0 to 512 [ 64.770842][ T6062] loop3: detected capacity change from 0 to 512 [ 64.797318][ T6062] EXT4-fs (loop3): Magic mismatch, very weird! [ 64.809317][ T6077] loop2: detected capacity change from 0 to 512 [ 64.827019][ T6050] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/310/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 64.831925][ T6076] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 64.856877][ T6088] loop1: detected capacity change from 0 to 512 [ 64.885466][ T6092] loop3: detected capacity change from 0 to 512 [ 64.895819][ T6092] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 64.897305][ T6097] loop5: detected capacity change from 0 to 512 [ 64.926795][ T6102] loop0: detected capacity change from 0 to 512 [ 64.934401][ T6088] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/296/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 64.965193][ T6114] loop4: detected capacity change from 0 to 512 [ 64.973980][ T6114] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 64.976213][ T6119] loop2: detected capacity change from 0 to 512 [ 65.014913][ T6119] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 65.015618][ T6126] loop1: detected capacity change from 0 to 512 [ 65.026275][ T6102] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/311/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 65.031336][ T6131] loop3: detected capacity change from 0 to 512 [ 65.059345][ T6126] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 65.067393][ T6134] loop4: detected capacity change from 0 to 512 [ 65.089334][ T6143] loop5: detected capacity change from 0 to 512 [ 65.089694][ T6141] loop2: detected capacity change from 0 to 519 [ 65.097314][ T6134] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 65.102444][ T6143] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 65.147404][ T6131] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/294/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 65.176419][ T6158] loop0: detected capacity change from 0 to 512 [ 65.191553][ T6158] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 65.218049][ T6172] loop1: detected capacity change from 0 to 512 [ 65.236186][ T6163] loop2: detected capacity change from 0 to 519 [ 65.255162][ T6187] loop0: detected capacity change from 0 to 512 [ 65.267934][ T6190] loop3: detected capacity change from 0 to 512 [ 65.275398][ T6187] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 65.280829][ T6190] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 65.337838][ T6199] loop2: detected capacity change from 0 to 512 [ 65.354967][ T6199] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 65.400724][ T6207] loop1: detected capacity change from 0 to 512 [ 65.401737][ T6209] loop4: detected capacity change from 0 to 512 [ 65.422231][ T6215] loop3: detected capacity change from 0 to 512 [ 65.431423][ T6220] loop2: detected capacity change from 0 to 512 [ 65.435739][ T6223] loop5: detected capacity change from 0 to 512 [ 65.469990][ T6226] loop0: detected capacity change from 0 to 512 [ 65.489686][ T6220] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 65.502543][ T6209] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/309/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 65.517883][ T6207] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/301/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 65.518068][ T6223] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/303/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 65.534788][ T6230] loop3: detected capacity change from 0 to 517 [ 65.619135][ T6240] loop1: detected capacity change from 0 to 512 [ 65.660018][ T6243] loop2: detected capacity change from 0 to 512 [ 65.669891][ T6255] loop3: detected capacity change from 0 to 512 [ 65.679972][ T6247] loop0: detected capacity change from 0 to 518 [ 65.693764][ T6240] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 65.704024][ T6262] loop5: detected capacity change from 0 to 512 [ 65.708226][ T6259] loop4: detected capacity change from 0 to 512 [ 65.718729][ T6240] EXT4-fs (loop1): failed to initialize system zone (-117) [ 65.726682][ T6240] EXT4-fs (loop1): mount failed [ 65.739113][ T6259] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 65.769922][ T6243] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/308/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 65.780045][ T6271] loop3: detected capacity change from 0 to 512 [ 65.813265][ T6273] loop1: detected capacity change from 0 to 519 [ 65.828351][ T6276] loop4: detected capacity change from 0 to 512 [ 65.831109][ T6279] loop0: detected capacity change from 0 to 512 [ 65.856076][ T6271] EXT4-fs (loop3): Magic mismatch, very weird! [ 65.873530][ T6273] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 65.883306][ T6276] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 65.920338][ T6262] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/305/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 65.951069][ T6284] loop0: detected capacity change from 0 to 512 [ 65.997636][ T6287] loop2: detected capacity change from 0 to 512 [ 65.998080][ T6290] loop0: detected capacity change from 0 to 512 [ 66.018066][ T6290] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 66.046126][ T6305] EXT4-fs warning (device loop2): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 66.046896][ T6306] loop3: detected capacity change from 0 to 512 [ 66.066505][ T6287] EXT4-fs (loop2): revision level too high, forcing read-only mode [ 66.068538][ T6310] loop4: detected capacity change from 0 to 512 [ 66.076631][ T6287] EXT4-fs (loop2): failed to initialize system zone (-117) [ 66.088920][ T6287] EXT4-fs (loop2): mount failed [ 66.107561][ T6319] loop0: detected capacity change from 0 to 512 [ 66.138517][ T6326] loop1: detected capacity change from 0 to 512 [ 66.154441][ T6339] loop0: detected capacity change from 0 to 518 [ 66.187354][ T6339] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 66.228247][ T6368] loop5: detected capacity change from 0 to 512 [ 66.236868][ T6365] loop1: detected capacity change from 0 to 512 [ 66.238932][ T6363] loop4: detected capacity change from 0 to 512 [ 66.258510][ T6376] loop3: detected capacity change from 0 to 517 [ 66.267646][ T6379] loop2: detected capacity change from 0 to 512 [ 66.286130][ T6382] loop0: detected capacity change from 0 to 512 [ 66.305317][ T6379] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 66.352887][ T6395] loop0: detected capacity change from 0 to 512 [ 66.353272][ T6392] blk_update_request: I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 66.362170][ T6390] loop1: detected capacity change from 0 to 512 [ 66.442674][ T6416] loop2: detected capacity change from 0 to 512 [ 66.443706][ T6418] loop4: detected capacity change from 0 to 512 [ 66.465863][ T6418] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 66.478334][ T6416] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 66.512637][ T6424] loop0: detected capacity change from 0 to 518 [ 66.534023][ T6438] loop4: detected capacity change from 0 to 512 [ 66.588164][ T6460] loop2: detected capacity change from 0 to 512 [ 66.591415][ T6467] loop1: detected capacity change from 0 to 512 [ 66.626890][ T6472] loop4: detected capacity change from 0 to 519 [ 66.651202][ T6471] blk_update_request: I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 66.682952][ T6460] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 66.695772][ T6484] loop1: detected capacity change from 0 to 512 [ 66.719738][ T6499] loop3: detected capacity change from 0 to 512 [ 66.721013][ T6496] loop5: detected capacity change from 0 to 512 [ 66.727726][ T6484] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 66.776759][ T6505] loop0: detected capacity change from 0 to 512 [ 66.804915][ T6499] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 66.820181][ T6512] loop4: detected capacity change from 0 to 512 [ 66.835799][ T6505] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 66.845073][ T6512] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 66.876820][ T6496] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/321/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 66.960016][ T6546] loop2: detected capacity change from 0 to 512 [ 66.977427][ T6549] loop0: detected capacity change from 0 to 518 [ 66.985344][ T6556] loop1: detected capacity change from 0 to 512 [ 66.992811][ T6546] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 67.027026][ T6556] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 67.050047][ T6570] loop3: detected capacity change from 0 to 512 [ 67.051028][ T6573] loop4: detected capacity change from 0 to 512 [ 67.057564][ T6549] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 67.076246][ T6570] EXT4-fs (loop3): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 67.093873][ T6570] EXT4-fs (loop3): group descriptors corrupted! [ 67.150399][ T6598] loop2: detected capacity change from 0 to 512 [ 67.161975][ T6603] loop0: detected capacity change from 0 to 512 [ 67.224153][ T6610] loop5: detected capacity change from 0 to 512 [ 67.243806][ T6618] loop4: detected capacity change from 0 to 512 [ 67.247136][ T6615] loop2: detected capacity change from 0 to 519 [ 67.289407][ T6627] loop1: detected capacity change from 0 to 519 [ 67.289728][ T6623] blk_update_request: I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 67.311265][ T6631] loop3: detected capacity change from 0 to 512 [ 67.318804][ T6618] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 67.344135][ T6642] loop5: detected capacity change from 0 to 512 [ 67.346663][ T6618] EXT4-fs (loop4): group descriptors corrupted! [ 67.358884][ T6615] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/326/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 67.360928][ T6645] loop0: detected capacity change from 0 to 512 [ 67.380815][ T6631] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 67.384848][ T6645] EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 67.398307][ T6645] EXT4-fs (loop0): group descriptors corrupted! [ 67.444965][ T6648] loop5: detected capacity change from 0 to 512 [ 67.452971][ T6651] loop3: detected capacity change from 0 to 512 [ 67.459291][ T6657] loop4: detected capacity change from 0 to 519 [ 67.505328][ T6648] EXT4-fs (loop5): Magic mismatch, very weird! [ 67.510150][ T6665] loop1: detected capacity change from 0 to 512 [ 67.521165][ T6657] EXT4-fs (loop4): Magic mismatch, very weird! [ 67.540368][ T6669] loop0: detected capacity change from 0 to 512 [ 67.549077][ T6667] loop2: detected capacity change from 0 to 512 [ 67.594238][ T6676] loop2: detected capacity change from 0 to 512 [ 67.614380][ T6680] loop0: detected capacity change from 0 to 512 [ 67.623394][ T6682] loop5: detected capacity change from 0 to 512 [ 67.633364][ T6688] loop1: detected capacity change from 0 to 512 [ 67.644634][ T6691] loop3: detected capacity change from 0 to 512 [ 67.646023][ T6676] EXT4-fs (loop2): Magic mismatch, very weird! [ 67.699141][ T6688] EXT4-fs (loop1): Couldn't mount because of unsupported optional features (b85c1009) [ 67.722842][ T6682] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/329/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 67.734866][ T6702] loop3: detected capacity change from 0 to 512 [ 67.748186][ T6680] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/341/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 67.781997][ T6715] loop4: detected capacity change from 0 to 512 [ 67.816967][ T6718] loop2: detected capacity change from 0 to 512 [ 67.835492][ T6712] loop5: detected capacity change from 0 to 519 [ 67.853941][ T6732] loop3: detected capacity change from 0 to 512 [ 67.855820][ T6715] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 67.874173][ T6728] loop0: detected capacity change from 0 to 512 [ 67.902672][ T6737] loop1: detected capacity change from 0 to 519 [ 67.910641][ T6737] EXT4-fs (loop1): Magic mismatch, very weird! [ 67.919144][ T6740] loop5: detected capacity change from 0 to 519 [ 67.928001][ T6743] loop2: detected capacity change from 0 to 512 [ 67.944946][ T6739] blk_update_request: I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 67.978152][ T6757] loop1: detected capacity change from 0 to 512 [ 67.990712][ T6760] loop2: detected capacity change from 0 to 512 [ 68.011876][ T6764] loop3: detected capacity change from 0 to 517 [ 68.031139][ T6773] loop0: detected capacity change from 0 to 512 [ 68.051047][ T6757] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/329/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 68.074224][ T6773] EXT4-fs (loop0): Magic mismatch, very weird! [ 68.075914][ T6785] loop4: detected capacity change from 0 to 512 [ 68.094557][ T6788] loop3: detected capacity change from 0 to 512 [ 68.109011][ T6791] loop5: detected capacity change from 0 to 512 [ 68.137894][ T6801] loop0: detected capacity change from 0 to 512 [ 68.142212][ T6804] loop2: detected capacity change from 0 to 512 [ 68.147362][ T6796] loop1: detected capacity change from 0 to 512 [ 68.157006][ T6788] EXT4-fs (loop3): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 68.170205][ T6788] EXT4-fs (loop3): group descriptors corrupted! [ 68.186294][ T6804] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 68.201225][ T6796] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 68.206851][ T6809] loop4: detected capacity change from 0 to 512 [ 68.218948][ T6791] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 68.226042][ T6809] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 68.236943][ T6801] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/346/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 68.303867][ T6826] loop2: detected capacity change from 0 to 512 [ 68.314289][ T6826] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 68.333912][ T6829] loop3: detected capacity change from 0 to 512 [ 68.346438][ T6832] loop4: detected capacity change from 0 to 512 [ 68.361122][ T6832] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 68.365684][ T6835] loop5: detected capacity change from 0 to 512 [ 68.372437][ T6829] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 68.388411][ T6841] loop1: detected capacity change from 0 to 512 2025/12/18 07:00:09 executed programs: 2039 [ 68.437498][ T6845] loop5: detected capacity change from 0 to 512 [ 68.457816][ T6859] loop2: detected capacity change from 0 to 512 [ 68.466790][ T6862] loop0: detected capacity change from 0 to 512 [ 68.475459][ T6855] loop4: detected capacity change from 0 to 512 [ 68.476009][ T6858] loop3: detected capacity change from 0 to 512 [ 68.490222][ T6855] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 68.492524][ T6862] EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 68.507796][ T6862] EXT4-fs (loop0): group descriptors corrupted! [ 68.548358][ T6868] loop1: detected capacity change from 0 to 512 [ 68.556379][ T6859] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/339/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 68.580215][ T6873] loop4: detected capacity change from 0 to 512 [ 68.619628][ T6890] loop1: detected capacity change from 0 to 512 [ 68.631822][ T6887] loop0: detected capacity change from 0 to 512 [ 68.668310][ T6893] EXT4-fs warning (device loop1): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 68.682586][ T6858] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/335/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 68.723851][ T6873] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/345/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 68.739832][ T6890] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 68.748055][ T6890] EXT4-fs (loop1): failed to initialize system zone (-117) [ 68.786818][ T6890] EXT4-fs (loop1): mount failed [ 68.814374][ T6909] loop0: detected capacity change from 0 to 512 [ 68.865358][ T6917] loop5: detected capacity change from 0 to 512 [ 68.875966][ T6919] loop2: detected capacity change from 0 to 519 [ 68.894416][ T6917] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 68.940036][ T6930] loop1: detected capacity change from 0 to 512 [ 68.941424][ T6937] loop4: detected capacity change from 0 to 512 [ 68.954486][ T6919] EXT4-fs (loop2): revision level too high, forcing read-only mode [ 68.961839][ T6939] loop3: detected capacity change from 0 to 512 [ 68.970499][ T6939] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 68.981616][ T6919] EXT4-fs (loop2): failed to initialize system zone (-117) [ 68.992121][ T6919] EXT4-fs (loop2): mount failed [ 69.024396][ T6930] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/335/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 69.024523][ T6944] loop5: detected capacity change from 0 to 519 [ 69.047113][ T6937] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/347/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 69.066931][ T6947] loop2: detected capacity change from 0 to 512 [ 69.068564][ T6949] loop3: detected capacity change from 0 to 512 [ 69.092623][ T6947] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 69.093694][ T6959] loop5: detected capacity change from 0 to 512 [ 69.122303][ T6962] EXT4-fs warning (device loop3): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 69.135826][ T6949] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 69.141129][ T6969] EXT4-fs warning (device loop5): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 69.153074][ T6972] loop1: detected capacity change from 0 to 512 [ 69.155238][ T6949] EXT4-fs (loop3): failed to initialize system zone (-117) [ 69.170255][ T6949] EXT4-fs (loop3): mount failed [ 69.184468][ T6959] EXT4-fs (loop5): revision level too high, forcing read-only mode [ 69.190291][ T6984] loop0: detected capacity change from 0 to 512 [ 69.193206][ T6959] EXT4-fs (loop5): failed to initialize system zone (-117) [ 69.207776][ T6959] EXT4-fs (loop5): mount failed [ 69.225168][ T6984] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 69.257444][ T6996] loop4: detected capacity change from 0 to 512 [ 69.267201][ T7002] loop1: detected capacity change from 0 to 512 [ 69.267920][ T7005] loop2: detected capacity change from 0 to 512 [ 69.282069][ T7002] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 69.309817][ T7005] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 69.351573][ T6996] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/350/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 69.353713][ T7025] loop2: detected capacity change from 0 to 512 [ 69.394308][ T7025] EXT4-fs (loop2): Magic mismatch, very weird! [ 69.443884][ T7041] loop1: detected capacity change from 0 to 512 [ 69.450943][ T7039] loop5: detected capacity change from 0 to 512 [ 69.462992][ T7041] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 69.487322][ T7046] loop0: detected capacity change from 0 to 512 [ 69.500590][ T7052] loop2: detected capacity change from 0 to 519 [ 69.517880][ T7055] loop3: detected capacity change from 0 to 512 [ 69.541075][ T7052] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 69.542349][ T7055] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 69.563802][ T7064] loop4: detected capacity change from 0 to 512 [ 69.572517][ T7058] loop5: detected capacity change from 0 to 512 [ 69.595258][ T7064] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 69.633344][ T7091] loop3: detected capacity change from 0 to 512 [ 69.634658][ T7089] loop1: detected capacity change from 0 to 519 [ 69.658778][ T7089] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/343/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 69.681335][ T7107] loop0: detected capacity change from 0 to 512 [ 69.682529][ T7091] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 69.708236][ T7111] loop5: detected capacity change from 0 to 512 [ 69.718714][ T7114] loop2: detected capacity change from 0 to 512 [ 69.767335][ T7107] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 69.782304][ T7126] loop4: detected capacity change from 0 to 512 [ 69.794109][ T7111] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 69.801511][ T7114] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 69.816677][ T7130] loop3: detected capacity change from 0 to 512 [ 69.833657][ T7129] EXT4-fs warning (device loop4): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 69.842282][ T7126] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 69.865922][ T7130] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 69.866484][ T7126] EXT4-fs (loop4): failed to initialize system zone (-117) [ 69.880416][ T7126] EXT4-fs (loop4): mount failed [ 69.904961][ T7137] loop2: detected capacity change from 0 to 519 [ 69.914266][ T7141] loop5: detected capacity change from 0 to 519 [ 69.928837][ T7141] EXT4-fs (loop5): Magic mismatch, very weird! [ 69.930149][ T7147] loop0: detected capacity change from 0 to 518 [ 69.961594][ T7149] loop3: detected capacity change from 0 to 512 [ 69.986697][ T7164] loop1: detected capacity change from 0 to 512 [ 70.024613][ T7176] loop2: detected capacity change from 0 to 512 [ 70.040749][ T7170] loop5: detected capacity change from 0 to 512 [ 70.048519][ T7149] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/348/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 70.088962][ T7176] EXT4-fs (loop2): revision level too high, forcing read-only mode [ 70.101842][ T7193] loop4: detected capacity change from 0 to 512 [ 70.105667][ T7176] EXT4-fs (loop2): failed to initialize system zone (-117) [ 70.110246][ T7194] loop0: detected capacity change from 0 to 512 [ 70.133078][ T7164] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/348/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 70.135759][ T7176] EXT4-fs (loop2): mount failed [ 70.161428][ T7194] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 70.177661][ T7198] loop5: detected capacity change from 0 to 512 [ 70.192300][ T7212] loop1: detected capacity change from 0 to 512 [ 70.201634][ T7212] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 70.203657][ T7215] loop2: detected capacity change from 0 to 512 [ 70.248815][ T7218] loop3: detected capacity change from 0 to 512 [ 70.259480][ T7223] loop4: detected capacity change from 0 to 519 [ 70.271662][ T7215] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/356/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 70.286792][ T7223] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 70.317672][ T7241] loop5: detected capacity change from 0 to 512 [ 70.321398][ T7244] loop3: detected capacity change from 0 to 512 [ 70.360800][ T7244] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 70.370656][ T7254] loop0: detected capacity change from 0 to 512 [ 70.375717][ T7248] loop1: detected capacity change from 0 to 512 [ 70.381204][ T7256] loop4: detected capacity change from 0 to 512 [ 70.443177][ T7262] loop0: detected capacity change from 0 to 512 [ 70.453993][ T7267] loop2: detected capacity change from 0 to 512 [ 70.460579][ T7259] loop5: detected capacity change from 0 to 512 [ 70.477864][ T7267] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 70.487100][ T7266] loop3: detected capacity change from 0 to 512 [ 70.490749][ T7259] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 70.493949][ T7262] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 70.522515][ T7280] loop4: detected capacity change from 0 to 512 [ 70.549921][ T7286] loop3: detected capacity change from 0 to 512 [ 70.566983][ T7295] loop1: detected capacity change from 0 to 512 [ 70.598523][ T7306] loop4: detected capacity change from 0 to 512 [ 70.624075][ T7316] loop1: detected capacity change from 0 to 512 [ 70.657424][ T7329] loop3: detected capacity change from 0 to 512 [ 70.670410][ T7325] loop4: detected capacity change from 0 to 512 [ 70.687451][ T7323] blk_update_request: I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 70.688216][ T7335] loop2: detected capacity change from 0 to 512 [ 70.713202][ T7340] loop5: detected capacity change from 0 to 512 [ 70.721727][ T7329] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 70.739736][ T7329] EXT4-fs (loop3): failed to initialize system zone (-117) [ 70.750619][ T7329] EXT4-fs (loop3): mount failed [ 70.760768][ T7340] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 70.775995][ T7351] loop1: detected capacity change from 0 to 519 [ 70.785711][ T7335] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 70.787452][ T7351] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 70.817662][ T7358] loop3: detected capacity change from 0 to 512 [ 70.841531][ T7363] loop4: detected capacity change from 0 to 512 [ 70.850051][ T7369] loop0: detected capacity change from 0 to 512 [ 70.859362][ T7358] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 70.872811][ T7378] loop5: detected capacity change from 0 to 512 [ 70.882039][ T7384] loop2: detected capacity change from 0 to 512 [ 70.900272][ T7363] EXT4-fs error (device loop4): ext4_init_orphan_info:582: comm syz-executor.4: inode #0: comm syz-executor.4: iget: illegal inode # [ 70.909852][ T7390] EXT4-fs warning (device loop0): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 70.919897][ T7363] EXT4-fs (loop4): get orphan inode failed [ 70.931620][ T7363] EXT4-fs (loop4): mount failed [ 70.936637][ T7369] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 70.952826][ T7369] EXT4-fs (loop0): failed to initialize system zone (-117) [ 70.961846][ T7369] EXT4-fs (loop0): mount failed [ 70.979600][ T7384] EXT4-fs mount: 53 callbacks suppressed [ 70.979617][ T7384] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 71.000173][ T7384] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/364/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 71.020817][ T7413] loop1: detected capacity change from 0 to 512 [ 71.030526][ T7418] loop4: detected capacity change from 0 to 512 [ 71.047041][ T7420] loop0: detected capacity change from 0 to 512 [ 71.057654][ T7420] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 71.064446][ T7413] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 71.083336][ T7426] loop3: detected capacity change from 0 to 512 [ 71.105087][ T7418] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 71.167100][ T7438] loop2: detected capacity change from 0 to 512 [ 71.176818][ T7443] loop5: detected capacity change from 0 to 512 [ 71.184374][ T7436] loop4: detected capacity change from 0 to 512 [ 71.192730][ T7426] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 71.212943][ T7450] loop0: detected capacity change from 0 to 512 [ 71.214283][ T7426] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/362/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 71.233049][ T7438] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 71.245189][ T7436] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 71.254557][ T7436] EXT4-fs (loop4): group descriptors corrupted! [ 71.275165][ T7450] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 71.369462][ T7472] loop1: detected capacity change from 0 to 519 [ 71.383349][ T7471] loop0: detected capacity change from 0 to 518 [ 71.451518][ T7517] loop1: detected capacity change from 0 to 512 [ 71.461442][ T7521] loop2: detected capacity change from 0 to 512 [ 71.470732][ T7525] loop5: detected capacity change from 0 to 512 [ 71.499987][ T7539] loop4: detected capacity change from 0 to 512 [ 71.509649][ T7525] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 71.529310][ T7545] loop3: detected capacity change from 0 to 512 [ 71.537018][ T7525] EXT4-fs (loop5): group descriptors corrupted! [ 71.545155][ T7539] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 71.594319][ T7545] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 71.644973][ T7545] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/369/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 71.664220][ T7517] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 71.682616][ T7517] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/366/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 71.709159][ T7557] loop5: detected capacity change from 0 to 512 [ 71.712556][ T7559] loop0: detected capacity change from 0 to 512 [ 71.730813][ T7561] loop2: detected capacity change from 0 to 519 [ 71.743486][ T7567] loop4: detected capacity change from 0 to 512 [ 71.770239][ T7557] EXT4-fs (loop5): Magic mismatch, very weird! [ 71.773263][ T7571] loop3: detected capacity change from 0 to 517 [ 71.784278][ T7567] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 71.799786][ T7567] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/378/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 71.804286][ T7571] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 71.831071][ T7559] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 71.856383][ T7584] loop1: detected capacity change from 0 to 512 [ 71.866813][ T7584] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 71.909607][ T7595] loop0: detected capacity change from 0 to 512 [ 71.949411][ T7612] loop4: detected capacity change from 0 to 512 [ 71.956193][ T7600] loop2: detected capacity change from 0 to 512 [ 71.959738][ T7602] loop5: detected capacity change from 0 to 512 [ 71.972237][ T7595] EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 71.996068][ T7619] loop1: detected capacity change from 0 to 512 [ 72.003420][ T7595] EXT4-fs (loop0): group descriptors corrupted! [ 72.025811][ T7627] loop3: detected capacity change from 0 to 512 [ 72.026195][ T7612] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 72.046657][ T7612] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/380/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 72.067663][ T7631] loop5: detected capacity change from 0 to 512 [ 72.078389][ T7637] loop1: detected capacity change from 0 to 512 [ 72.098259][ T7637] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 72.116078][ T7646] loop2: detected capacity change from 0 to 512 [ 72.124074][ T7646] EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 72.133504][ T7646] EXT4-fs (loop2): group descriptors corrupted! [ 72.149338][ T7658] loop0: detected capacity change from 0 to 512 [ 72.153009][ T7656] loop3: detected capacity change from 0 to 517 [ 72.191411][ T7656] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 72.211586][ T7679] loop1: detected capacity change from 0 to 512 [ 72.212945][ T7656] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/378/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 72.258281][ T7690] loop4: detected capacity change from 0 to 519 [ 72.260306][ T7694] loop0: detected capacity change from 0 to 512 [ 72.267201][ T7696] loop2: detected capacity change from 0 to 512 [ 72.284287][ T7700] loop5: detected capacity change from 0 to 519 [ 72.293381][ T7702] loop1: detected capacity change from 0 to 512 [ 72.293425][ T7696] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 72.300309][ T7700] EXT4-fs (loop5): Magic mismatch, very weird! [ 72.313640][ T7690] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 72.333318][ T7690] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/384/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 72.351220][ T7708] loop0: detected capacity change from 0 to 512 [ 72.360975][ T7708] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 72.362284][ T7709] loop3: detected capacity change from 0 to 512 [ 72.429436][ T7734] loop0: detected capacity change from 0 to 512 [ 72.442845][ T7742] loop2: detected capacity change from 0 to 512 [ 72.447198][ T7745] loop4: detected capacity change from 0 to 512 [ 72.454369][ T7738] loop3: detected capacity change from 0 to 512 [ 72.463104][ T7741] loop1: detected capacity change from 0 to 512 [ 72.473442][ T7738] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 72.482679][ T7734] EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 72.496995][ T7742] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 72.497212][ T7734] EXT4-fs (loop0): group descriptors corrupted! [ 72.551992][ T7764] loop1: detected capacity change from 0 to 512 [ 72.563007][ T7769] loop5: detected capacity change from 0 to 512 [ 72.580042][ T7776] loop2: detected capacity change from 0 to 519 [ 72.598174][ T7785] loop3: detected capacity change from 0 to 512 [ 72.609342][ T7783] loop4: detected capacity change from 0 to 512 [ 72.616566][ T7776] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 72.627522][ T7769] EXT4-fs (loop5): revision level too high, forcing read-only mode [ 72.637319][ T7769] EXT4-fs (loop5): failed to initialize system zone (-117) [ 72.646592][ T7769] EXT4-fs (loop5): mount failed [ 72.666049][ T7797] loop1: detected capacity change from 0 to 512 [ 72.686598][ T7802] loop0: detected capacity change from 0 to 512 [ 72.706777][ T7802] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 72.722864][ T7802] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/402/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 72.747105][ T7822] loop5: detected capacity change from 0 to 512 [ 72.767479][ T7828] loop3: detected capacity change from 0 to 512 [ 72.786117][ T7828] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 72.815824][ T7843] loop0: detected capacity change from 0 to 512 [ 72.818239][ T7849] loop4: detected capacity change from 0 to 512 [ 72.822588][ T7842] blk_update_request: I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 72.914890][ T7867] loop0: detected capacity change from 0 to 512 [ 72.928605][ T7889] loop2: detected capacity change from 0 to 512 [ 72.936511][ T7863] blk_update_request: I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 72.960010][ T7889] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 72.978538][ T7900] loop5: detected capacity change from 0 to 512 [ 72.979736][ T7902] loop1: detected capacity change from 0 to 512 [ 72.987976][ T7904] loop4: detected capacity change from 0 to 512 [ 72.996195][ T7906] loop3: detected capacity change from 0 to 512 [ 73.014929][ T7900] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 73.024891][ T7904] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 73.040871][ T7915] loop0: detected capacity change from 0 to 518 [ 73.059983][ T7915] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 73.088074][ T7934] loop4: detected capacity change from 0 to 512 [ 73.100031][ T7945] loop5: detected capacity change from 0 to 512 [ 73.122347][ T7949] loop1: detected capacity change from 0 to 512 [ 73.134241][ T7954] loop3: detected capacity change from 0 to 512 [ 73.153938][ T7969] loop2: detected capacity change from 0 to 512 [ 73.178235][ T7978] loop0: detected capacity change from 0 to 512 [ 73.190439][ T7969] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 73.214391][ T7991] loop4: detected capacity change from 0 to 512 [ 73.223046][ T7978] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 73.237340][ T7978] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/410/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 73.244834][ T7991] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 73.285833][ T8007] loop3: detected capacity change from 0 to 512 [ 73.302653][ T8010] loop5: detected capacity change from 0 to 512 [ 73.331136][ T8007] EXT4-fs (loop3): Magic mismatch, very weird! [ 73.347927][ T8023] loop1: detected capacity change from 0 to 512 [ 73.403843][ T8046] loop0: detected capacity change from 0 to 512 [ 73.421116][ T8057] loop5: detected capacity change from 0 to 512 [ 73.423476][ T8061] loop2: detected capacity change from 0 to 512 [ 73.429502][ T8059] loop1: detected capacity change from 0 to 512 2025/12/18 07:00:14 executed programs: 2420 [ 73.449003][ T8064] loop3: detected capacity change from 0 to 512 [ 73.459950][ T8064] EXT4-fs (loop3): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 73.470448][ T8064] EXT4-fs (loop3): group descriptors corrupted! [ 73.480764][ T8059] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 73.495177][ T8059] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/394/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 73.501196][ T8075] loop4: detected capacity change from 0 to 512 [ 73.534096][ T8083] loop3: detected capacity change from 0 to 512 [ 73.542444][ T8087] loop2: detected capacity change from 0 to 512 [ 73.564935][ T8087] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 73.575584][ T8094] loop5: detected capacity change from 0 to 512 [ 73.585243][ T8083] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 73.585292][ T8097] loop1: detected capacity change from 0 to 512 [ 73.599503][ T8099] loop4: detected capacity change from 0 to 512 [ 73.613748][ T8097] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 73.661252][ T8122] loop2: detected capacity change from 0 to 512 [ 73.669557][ T8126] loop1: detected capacity change from 0 to 512 [ 73.682507][ T8129] loop0: detected capacity change from 0 to 512 [ 73.700250][ T8136] loop3: detected capacity change from 0 to 512 [ 73.712788][ T8122] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 73.721306][ T8126] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 73.748086][ T8147] loop5: detected capacity change from 0 to 512 [ 73.754869][ T8136] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 73.770266][ T8156] loop2: detected capacity change from 0 to 512 [ 73.778740][ T8161] loop4: detected capacity change from 0 to 512 [ 73.784715][ T8159] loop0: detected capacity change from 0 to 512 [ 73.792879][ T8165] loop1: detected capacity change from 0 to 519 [ 73.800685][ T8147] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 73.811579][ T8159] EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 73.821350][ T8159] EXT4-fs (loop0): group descriptors corrupted! [ 73.826247][ T8161] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 73.842396][ T8161] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/414/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 73.900027][ T8186] loop0: detected capacity change from 0 to 512 [ 73.911463][ T8191] loop5: detected capacity change from 0 to 512 [ 73.913967][ T8189] loop1: detected capacity change from 0 to 512 [ 73.924183][ T8183] loop3: detected capacity change from 0 to 512 [ 73.932462][ T8191] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 73.934228][ T8194] loop2: detected capacity change from 0 to 512 [ 73.950883][ T8189] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 73.966504][ T8197] loop4: detected capacity change from 0 to 512 [ 73.975009][ T8194] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 73.975263][ T8186] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 74.000531][ T8200] loop3: detected capacity change from 0 to 512 [ 74.016478][ T8200] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 74.061833][ T8226] loop4: detected capacity change from 0 to 512 [ 74.078069][ T8232] loop2: detected capacity change from 0 to 512 [ 74.079936][ T8224] loop5: detected capacity change from 0 to 512 [ 74.097898][ T8239] loop0: detected capacity change from 0 to 512 [ 74.110808][ T8232] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 74.134180][ T8250] loop1: detected capacity change from 0 to 512 [ 74.136260][ T8249] loop4: detected capacity change from 0 to 519 [ 74.186255][ T8278] loop3: detected capacity change from 0 to 517 [ 74.197649][ T8277] blk_update_request: I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 74.215310][ T8285] loop0: detected capacity change from 0 to 512 [ 74.223662][ T8291] loop4: detected capacity change from 0 to 512 [ 74.227703][ T8294] loop5: detected capacity change from 0 to 512 [ 74.233839][ T8299] loop1: detected capacity change from 0 to 512 [ 74.248358][ T8277] blk_update_request: I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 74.250445][ T8302] loop2: detected capacity change from 0 to 512 [ 74.259788][ T8277] Buffer I/O error on dev loop3, logical block 0, async page read [ 74.274096][ T8277] blk_update_request: I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 74.286020][ T8277] Buffer I/O error on dev loop3, logical block 0, async page read [ 74.288536][ T8291] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 74.293956][ T8277] blk_update_request: I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 74.305896][ T8291] EXT4-fs (loop4): group descriptors corrupted! [ 74.315418][ T8277] Buffer I/O error on dev loop3, logical block 0, async page read [ 74.329631][ T8302] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 74.357750][ T8305] loop5: detected capacity change from 0 to 512 [ 74.387808][ T8323] loop3: detected capacity change from 0 to 512 [ 74.391584][ T8321] loop2: detected capacity change from 0 to 512 [ 74.394373][ T8319] loop0: detected capacity change from 0 to 512 [ 74.407057][ T8311] loop1: detected capacity change from 0 to 512 [ 74.424503][ T8329] loop5: detected capacity change from 0 to 512 [ 74.436279][ T8319] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 74.450570][ T8319] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/428/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 74.484192][ T8344] loop5: detected capacity change from 0 to 512 [ 74.505409][ T8350] loop2: detected capacity change from 0 to 512 [ 74.517878][ T8352] loop4: detected capacity change from 0 to 512 [ 74.547769][ T8350] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 74.566877][ T8375] loop4: detected capacity change from 0 to 512 [ 74.581363][ T8372] loop3: detected capacity change from 0 to 512 [ 74.592137][ T8344] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 74.606728][ T8344] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/427/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 74.613346][ T8381] loop0: detected capacity change from 0 to 512 [ 74.629038][ T8375] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 74.637136][ T8377] loop1: detected capacity change from 0 to 512 [ 74.639521][ T8375] EXT4-fs (loop4): group descriptors corrupted! [ 74.651781][ T8377] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 74.654425][ T8372] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 74.673133][ T8372] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/412/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 74.737299][ T8418] loop0: detected capacity change from 0 to 512 [ 74.738792][ T8420] loop5: detected capacity change from 0 to 519 [ 74.769380][ T8423] loop2: detected capacity change from 0 to 512 [ 74.792146][ T8418] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 74.793458][ T8435] loop4: detected capacity change from 0 to 512 [ 74.811745][ T8418] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/433/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 74.835286][ T8441] loop3: detected capacity change from 0 to 512 [ 74.853146][ T8446] loop5: detected capacity change from 0 to 512 [ 74.860883][ T8435] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 74.879751][ T8446] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 74.884692][ T8453] loop1: detected capacity change from 0 to 512 [ 74.916895][ T8465] loop3: detected capacity change from 0 to 512 [ 74.925026][ T8458] loop2: detected capacity change from 0 to 512 [ 74.979339][ T8500] loop3: detected capacity change from 0 to 512 [ 74.979410][ T8502] loop0: detected capacity change from 0 to 512 [ 74.989158][ T8504] loop4: detected capacity change from 0 to 512 [ 75.008116][ T8500] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 75.020332][ T8512] loop5: detected capacity change from 0 to 512 [ 75.041788][ T8518] loop2: detected capacity change from 0 to 512 [ 75.053354][ T8504] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 75.068804][ T8523] loop1: detected capacity change from 0 to 512 [ 75.072833][ T8502] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 75.076277][ T8504] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/432/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 75.094280][ T8527] EXT4-fs warning (device loop5): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 75.108585][ T8502] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/437/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 75.138170][ T8523] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 75.140131][ T8512] EXT4-fs (loop5): revision level too high, forcing read-only mode [ 75.153683][ T8512] EXT4-fs (loop5): failed to initialize system zone (-117) [ 75.161053][ T8512] EXT4-fs (loop5): mount failed [ 75.171252][ T8533] loop3: detected capacity change from 0 to 512 [ 75.183144][ T8536] loop2: detected capacity change from 0 to 512 [ 75.207574][ T8539] loop4: detected capacity change from 0 to 512 [ 75.223021][ T8554] loop1: detected capacity change from 0 to 512 [ 75.240514][ T8533] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 75.256831][ T8533] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/418/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 75.284895][ T8536] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 75.301608][ T8554] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 75.315875][ T8554] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/422/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 75.343389][ T8576] loop4: detected capacity change from 0 to 512 [ 75.348870][ T8571] loop0: detected capacity change from 0 to 512 [ 75.353877][ T8573] loop5: detected capacity change from 0 to 512 [ 75.361773][ T8582] loop3: detected capacity change from 0 to 512 [ 75.379912][ T8576] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 75.380002][ T8585] loop2: detected capacity change from 0 to 512 [ 75.386708][ T8582] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 75.466476][ T8612] loop5: detected capacity change from 0 to 512 [ 75.486855][ T8631] loop4: detected capacity change from 0 to 512 [ 75.498329][ T8612] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 75.514281][ T8639] loop3: detected capacity change from 0 to 512 [ 75.527754][ T8645] loop0: detected capacity change from 0 to 518 [ 75.535381][ T8631] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 75.543173][ T8645] EXT4-fs (loop0): Magic mismatch, very weird! [ 75.549582][ T8639] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 75.628325][ T8670] loop4: detected capacity change from 0 to 512 [ 75.643638][ T8678] loop5: detected capacity change from 0 to 519 [ 75.661178][ T8670] EXT4-fs (loop4): Magic mismatch, very weird! [ 75.665907][ T8685] loop1: detected capacity change from 0 to 512 [ 75.667602][ T8689] loop2: detected capacity change from 0 to 512 [ 75.689670][ T8693] loop0: detected capacity change from 0 to 512 [ 75.716689][ T8693] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 75.730880][ T8693] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/450/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 75.762298][ T8706] loop5: detected capacity change from 0 to 512 [ 75.772320][ T8709] loop2: detected capacity change from 0 to 512 [ 75.773719][ T8711] loop1: detected capacity change from 0 to 512 [ 75.789065][ T8713] loop4: detected capacity change from 0 to 512 [ 75.796586][ T8709] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 75.815096][ T8713] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 75.830746][ T8722] loop3: detected capacity change from 0 to 512 [ 75.836370][ T8725] loop0: detected capacity change from 0 to 512 [ 75.856268][ T8730] loop2: detected capacity change from 0 to 512 [ 75.870198][ T8730] EXT4-fs (loop2): Encoding requested by superblock is unknown [ 75.886710][ T8722] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 75.903608][ T8722] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/427/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 75.925045][ T8740] loop1: detected capacity change from 0 to 512 [ 75.931478][ T8749] loop2: detected capacity change from 0 to 512 [ 75.939684][ T8744] loop5: detected capacity change from 0 to 512 [ 75.948929][ T8751] loop4: detected capacity change from 0 to 512 [ 75.956203][ T8740] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 75.973128][ T8754] loop0: detected capacity change from 0 to 512 [ 76.018010][ T8758] loop2: detected capacity change from 0 to 512 [ 76.036482][ T8758] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 76.051351][ T8758] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/433/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 76.071898][ T8777] loop5: detected capacity change from 0 to 512 [ 76.105320][ T8777] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 76.126775][ T8802] loop3: detected capacity change from 0 to 512 [ 76.145039][ T8802] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 76.181967][ T8816] loop4: detected capacity change from 0 to 512 [ 76.198025][ T8828] loop0: detected capacity change from 0 to 512 [ 76.209786][ T8833] loop5: detected capacity change from 0 to 512 [ 76.225845][ T8816] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 76.244585][ T8849] loop3: detected capacity change from 0 to 517 [ 76.262294][ T8828] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 76.276423][ T8828] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/459/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 76.363864][ T8888] loop3: detected capacity change from 0 to 512 [ 76.366073][ T8885] loop5: detected capacity change from 0 to 512 [ 76.385027][ T8879] loop2: detected capacity change from 0 to 512 [ 76.386110][ T8895] loop1: detected capacity change from 0 to 512 [ 76.398747][ T8885] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 76.408278][ T8885] EXT4-fs (loop5): group descriptors corrupted! [ 76.413901][ T8888] EXT4-fs (loop3): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 76.449333][ T8911] EXT4-fs warning (device loop1): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 76.455766][ T8909] loop4: detected capacity change from 0 to 512 [ 76.468243][ T8895] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 76.479803][ T8917] loop2: detected capacity change from 0 to 519 [ 76.487101][ T8916] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 76.488923][ T8888] EXT4-fs (loop3): group descriptors corrupted! [ 76.502087][ T8895] EXT4-fs (loop1): failed to initialize system zone (-117) [ 76.513889][ T8920] loop0: detected capacity change from 0 to 518 [ 76.520825][ T8895] EXT4-fs (loop1): mount failed [ 76.520926][ T8916] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 76.534901][ T8909] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 76.537011][ T8916] Buffer I/O error on dev loop2, logical block 0, async page read [ 76.564118][ T8926] loop3: detected capacity change from 0 to 512 [ 76.592376][ T8926] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 76.599416][ T8929] loop1: detected capacity change from 0 to 512 [ 76.611953][ T8928] blk_update_request: I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 30 prio class 0 [ 76.643200][ T8956] loop0: detected capacity change from 0 to 512 [ 76.659006][ T8956] EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 76.671263][ T8956] EXT4-fs (loop0): group descriptors corrupted! [ 76.691428][ T8969] loop5: detected capacity change from 0 to 512 [ 76.693421][ T8971] loop2: detected capacity change from 0 to 512 [ 76.707538][ T8977] loop3: detected capacity change from 0 to 512 [ 76.717394][ T8977] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 76.741092][ T8971] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 76.742957][ T8990] loop4: detected capacity change from 0 to 512 [ 76.757502][ T8971] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/443/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 76.782962][ T8998] loop5: detected capacity change from 0 to 512 [ 76.797168][ T8998] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 76.823752][ T9012] loop3: detected capacity change from 0 to 512 [ 76.831165][ T8990] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 76.831282][ T9008] loop1: detected capacity change from 0 to 512 [ 76.853241][ T8990] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/455/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 76.853638][ T9008] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 76.886914][ T9018] loop0: detected capacity change from 0 to 512 [ 76.910325][ T9012] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 76.927867][ T9012] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/439/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 76.960594][ T9047] loop2: detected capacity change from 0 to 512 [ 76.994266][ T9047] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 76.995099][ T9056] loop4: detected capacity change from 0 to 512 [ 77.013154][ T9062] loop0: detected capacity change from 0 to 512 [ 77.057306][ T9090] loop3: detected capacity change from 0 to 512 [ 77.066977][ T9092] loop1: detected capacity change from 0 to 512 [ 77.089122][ T9106] loop0: detected capacity change from 0 to 512 [ 77.104621][ T9092] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 77.126563][ T9106] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 77.184531][ T9134] loop2: detected capacity change from 0 to 512 [ 77.185893][ T9125] loop5: detected capacity change from 0 to 512 [ 77.194718][ T9137] loop1: detected capacity change from 0 to 512 [ 77.225427][ T9137] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 77.247896][ T9155] loop4: detected capacity change from 0 to 512 [ 77.248436][ T9153] blk_update_request: I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 77.255548][ T9151] loop2: detected capacity change from 0 to 512 [ 77.272452][ T9148] loop3: detected capacity change from 0 to 512 [ 77.280100][ T9147] blk_update_request: I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 77.301238][ T9125] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 77.315389][ T9125] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/471/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 77.355563][ T9164] loop2: detected capacity change from 0 to 512 [ 77.367991][ T9172] loop1: detected capacity change from 0 to 512 [ 77.385258][ T9164] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 77.393005][ T9172] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 77.413479][ T9186] loop5: detected capacity change from 0 to 512 [ 77.428615][ T9195] loop4: detected capacity change from 0 to 512 [ 77.436254][ T9186] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 77.451823][ T9195] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 77.464149][ T9198] loop3: detected capacity change from 0 to 512 [ 77.493467][ T9211] loop2: detected capacity change from 0 to 512 [ 77.502901][ T9216] loop3: detected capacity change from 0 to 512 [ 77.512242][ T9219] loop4: detected capacity change from 0 to 512 [ 77.534897][ T9216] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 77.558526][ T9239] loop1: detected capacity change from 0 to 519 [ 77.575374][ T9239] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 77.594938][ T9258] loop3: detected capacity change from 0 to 512 [ 77.607172][ T9261] loop2: detected capacity change from 0 to 512 [ 77.609426][ T9252] loop5: detected capacity change from 0 to 519 [ 77.617534][ T9261] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 77.633058][ T9258] EXT4-fs (loop3): Magic mismatch, very weird! [ 77.637692][ T9252] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 77.653768][ T9267] loop4: detected capacity change from 0 to 512 [ 77.667871][ T9274] loop1: detected capacity change from 0 to 519 [ 77.687345][ T9267] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 77.706268][ T9287] loop0: detected capacity change from 0 to 518 [ 77.708227][ T9289] loop5: detected capacity change from 0 to 512 [ 77.733732][ T9300] loop2: detected capacity change from 0 to 512 [ 77.747495][ T9287] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 77.775950][ T9314] loop4: detected capacity change from 0 to 512 [ 77.817687][ T9336] loop1: detected capacity change from 0 to 512 [ 77.833568][ T9339] loop3: detected capacity change from 0 to 512 [ 77.834532][ T9336] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 77.857084][ T9342] loop5: detected capacity change from 0 to 512 [ 77.869588][ T9339] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 77.871831][ T9351] loop4: detected capacity change from 0 to 519 [ 77.889737][ T9342] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 77.909689][ T9360] loop1: detected capacity change from 0 to 512 [ 77.922303][ T9363] loop0: detected capacity change from 0 to 512 [ 77.957616][ T9366] loop2: detected capacity change from 0 to 512 [ 77.983329][ T9373] loop1: detected capacity change from 0 to 519 [ 77.990177][ T9372] blk_update_request: I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 31 prio class 0 [ 78.008103][ T9382] loop5: detected capacity change from 0 to 512 [ 78.018817][ T9385] loop0: detected capacity change from 0 to 512 [ 78.027861][ T9387] loop4: detected capacity change from 0 to 512 [ 78.037368][ T9366] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 78.051840][ T9366] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/467/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 78.084968][ T9385] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 78.138118][ T9404] loop2: detected capacity change from 0 to 512 [ 78.147549][ T9387] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 78.191904][ T9411] loop1: detected capacity change from 0 to 512 [ 78.270471][ T9387] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/473/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 78.294438][ T9424] loop5: detected capacity change from 0 to 512 [ 78.316867][ T9404] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 78.344917][ T9404] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/468/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 78.407911][ T9441] loop4: detected capacity change from 0 to 512 [ 78.418248][ T9444] loop1: detected capacity change from 0 to 512 [ 78.426189][ T9441] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 78.428393][ T9453] loop3: detected capacity change from 0 to 512 2025/12/18 07:00:19 executed programs: 2869 [ 78.460440][ T9444] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 78.472730][ T9456] loop0: detected capacity change from 0 to 512 [ 78.474633][ T9459] loop5: detected capacity change from 0 to 512 [ 78.504838][ T9459] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 78.543457][ T9481] loop1: detected capacity change from 0 to 512 [ 78.574437][ T9495] loop2: detected capacity change from 0 to 512 [ 78.623917][ T9513] loop5: detected capacity change from 0 to 512 [ 78.630271][ T9510] loop0: detected capacity change from 0 to 512 [ 78.637502][ T9508] loop1: detected capacity change from 0 to 512 [ 78.672587][ T9528] loop2: detected capacity change from 0 to 512 [ 78.691967][ T9528] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 78.706729][ T9537] loop4: detected capacity change from 0 to 512 [ 78.716907][ T9541] loop3: detected capacity change from 0 to 512 [ 78.730057][ T9545] loop0: detected capacity change from 0 to 518 [ 78.782048][ T9541] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 78.815754][ T9562] loop0: detected capacity change from 0 to 512 [ 78.816914][ T9576] loop4: detected capacity change from 0 to 512 [ 78.842871][ T9580] loop1: detected capacity change from 0 to 512 [ 78.865365][ T9576] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 78.879906][ T9576] EXT4-fs (loop4): group descriptors corrupted! [ 78.897405][ T9600] loop2: detected capacity change from 0 to 512 [ 78.912095][ T9606] loop5: detected capacity change from 0 to 512 [ 78.912628][ T9604] loop0: detected capacity change from 0 to 512 [ 78.932846][ T9612] loop1: detected capacity change from 0 to 512 [ 78.940158][ T9600] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 78.966990][ T9617] EXT4-fs warning (device loop0): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 78.970905][ T9610] loop4: detected capacity change from 0 to 519 [ 78.987849][ T9604] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 78.991752][ T9623] loop1: detected capacity change from 0 to 512 [ 78.999025][ T9604] EXT4-fs (loop0): failed to initialize system zone (-117) [ 79.009611][ T9604] EXT4-fs (loop0): mount failed [ 79.018258][ T9629] loop5: detected capacity change from 0 to 512 [ 79.067350][ T9629] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 79.072651][ T9649] loop3: detected capacity change from 0 to 517 [ 79.088859][ T9629] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/497/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 79.108065][ T9655] loop4: detected capacity change from 0 to 512 [ 79.115921][ T9652] loop2: detected capacity change from 0 to 512 [ 79.125926][ T9649] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 79.137645][ T9655] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 79.147736][ T9652] EXT4-fs (loop2): Magic mismatch, very weird! [ 79.155716][ T9659] loop1: detected capacity change from 0 to 512 [ 79.173129][ T9665] loop0: detected capacity change from 0 to 518 [ 79.194395][ T9665] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 79.230613][ T9670] loop1: detected capacity change from 0 to 512 [ 79.263159][ T9682] loop4: detected capacity change from 0 to 512 [ 79.270784][ T9679] loop2: detected capacity change from 0 to 512 [ 79.288087][ T9677] loop3: detected capacity change from 0 to 517 [ 79.311175][ T9682] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 79.328884][ T9682] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/487/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 79.334370][ T9700] loop2: detected capacity change from 0 to 512 [ 79.347318][ T9694] loop1: detected capacity change from 0 to 512 [ 79.360859][ T9694] EXT4-fs (loop1): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 79.363016][ T9700] EXT4-fs (loop2): Magic mismatch, very weird! [ 79.371006][ T9694] EXT4-fs (loop1): group descriptors corrupted! [ 79.408549][ T9714] loop5: detected capacity change from 0 to 512 [ 79.421630][ T9712] loop4: detected capacity change from 0 to 512 [ 79.434504][ T9708] loop3: detected capacity change from 0 to 517 [ 79.492519][ T9733] loop3: detected capacity change from 0 to 512 [ 79.504208][ T9726] loop0: detected capacity change from 0 to 518 [ 79.538854][ T9754] loop5: detected capacity change from 0 to 512 [ 79.613319][ T9780] loop2: detected capacity change from 0 to 512 [ 79.638586][ T9783] loop5: detected capacity change from 0 to 519 [ 79.648324][ T9792] loop1: detected capacity change from 0 to 512 [ 79.666041][ T9783] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 79.676482][ T9790] loop4: detected capacity change from 0 to 512 [ 79.685546][ T9792] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 79.726103][ T9790] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 79.738934][ T9780] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 79.756753][ T9780] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/488/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 79.790085][ T9819] loop3: detected capacity change from 0 to 517 [ 79.816813][ T9825] loop0: detected capacity change from 0 to 512 [ 79.849134][ T9819] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 79.898572][ T9825] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 79.899767][ T9835] loop1: detected capacity change from 0 to 512 [ 79.939914][ T9844] loop2: detected capacity change from 0 to 512 [ 79.944556][ T9842] loop4: detected capacity change from 0 to 512 [ 79.998400][ T9855] loop0: detected capacity change from 0 to 512 [ 80.008319][ T9862] loop2: detected capacity change from 0 to 512 [ 80.019161][ T9857] loop3: detected capacity change from 0 to 517 [ 80.035884][ T9835] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 80.054492][ T9835] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/491/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 80.072354][ T9862] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 80.075163][ T9869] loop5: detected capacity change from 0 to 512 [ 80.131622][ T9874] loop4: detected capacity change from 0 to 512 [ 80.147194][ T9884] loop0: detected capacity change from 0 to 512 [ 80.148065][ T9886] loop3: detected capacity change from 0 to 512 [ 80.172319][ T9884] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 80.203510][ T9892] loop4: detected capacity change from 0 to 512 [ 80.235580][ T9869] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 80.284865][ T9886] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 80.291838][ T9869] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/509/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 80.349799][ T9924] loop2: detected capacity change from 0 to 519 [ 80.353134][ T9916] loop3: detected capacity change from 0 to 512 [ 80.366991][ T9919] loop1: detected capacity change from 0 to 512 [ 80.366991][ T9921] loop4: detected capacity change from 0 to 512 [ 80.390472][ T9919] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 80.406568][ T9924] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 80.430329][ T9939] loop5: detected capacity change from 0 to 512 [ 80.438135][ T9921] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 80.504321][ T9949] loop2: detected capacity change from 0 to 519 [ 80.554705][ T9957] loop0: detected capacity change from 0 to 512 [ 80.557921][ T9973] loop3: detected capacity change from 0 to 517 [ 80.578225][ T9981] loop4: detected capacity change from 0 to 512 [ 80.604154][ T9991] loop0: detected capacity change from 0 to 512 [ 80.614224][ T9996] loop5: detected capacity change from 0 to 512 [ 80.652324][T10008] loop1: detected capacity change from 0 to 512 [ 80.671745][T10014] loop2: detected capacity change from 0 to 512 [ 80.673831][ T9981] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 80.693769][T10008] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 80.738990][ T9981] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/500/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 80.772281][T10029] loop0: detected capacity change from 0 to 518 [ 80.787698][T10023] loop5: detected capacity change from 0 to 512 [ 80.805935][T10039] loop2: detected capacity change from 0 to 512 [ 80.814593][T10042] loop3: detected capacity change from 0 to 512 [ 80.864882][T10039] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 80.887038][T10029] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 80.907289][T10029] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/531/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 80.909873][T10064] loop4: detected capacity change from 0 to 512 [ 80.942062][T10023] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 80.956326][T10064] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 80.956395][T10023] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/515/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 80.984647][T10067] loop1: detected capacity change from 0 to 512 [ 81.005403][T10076] loop2: detected capacity change from 0 to 512 [ 81.016325][T10076] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 81.035252][T10067] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 81.081876][T10092] loop2: detected capacity change from 0 to 512 [ 81.129362][T10116] loop4: detected capacity change from 0 to 512 [ 81.142020][T10121] loop5: detected capacity change from 0 to 512 [ 81.170512][T10116] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 81.191168][T10116] EXT4-fs (loop4): group descriptors corrupted! [ 81.231696][T10151] loop5: detected capacity change from 0 to 512 [ 81.256835][T10163] loop2: detected capacity change from 0 to 512 [ 81.259708][T10154] loop3: detected capacity change from 0 to 512 [ 81.278888][T10166] loop4: detected capacity change from 0 to 519 [ 81.287271][T10170] loop0: detected capacity change from 0 to 512 [ 81.297084][T10165] blk_update_request: I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 27 prio class 0 [ 81.307818][T10174] EXT4-fs warning (device loop2): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 81.323557][T10154] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 81.332503][T10163] EXT4-fs (loop2): revision level too high, forcing read-only mode [ 81.333133][T10180] loop5: detected capacity change from 0 to 512 [ 81.354314][T10163] EXT4-fs (loop2): failed to initialize system zone (-117) [ 81.362088][T10163] EXT4-fs (loop2): mount failed [ 81.372507][T10183] loop1: detected capacity change from 0 to 512 [ 81.416949][T10183] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 81.443147][T10202] loop3: detected capacity change from 0 to 512 [ 81.463100][T10196] loop4: detected capacity change from 0 to 512 [ 81.489324][T10207] loop1: detected capacity change from 0 to 519 [ 81.496731][T10202] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 81.510503][T10222] loop5: detected capacity change from 0 to 512 [ 81.533582][T10228] loop2: detected capacity change from 0 to 512 [ 81.556179][T10231] loop1: detected capacity change from 0 to 512 [ 81.567307][T10230] blk_update_request: I/O error, dev loop1, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 81.598268][T10243] loop4: detected capacity change from 0 to 519 [ 81.601332][T10241] loop0: detected capacity change from 0 to 512 [ 81.618710][T10228] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 81.646825][T10252] loop3: detected capacity change from 0 to 512 [ 81.662746][T10255] loop1: detected capacity change from 0 to 519 [ 81.688954][T10243] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 81.703474][T10243] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/510/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 81.711784][T10265] loop0: detected capacity change from 0 to 512 [ 81.748556][T10268] loop1: detected capacity change from 0 to 512 [ 81.810151][T10273] EXT4-fs warning (device loop0): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 81.856261][T10265] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 81.866618][T10285] loop3: detected capacity change from 0 to 512 [ 81.876858][T10291] loop2: detected capacity change from 0 to 512 [ 81.882678][T10265] EXT4-fs (loop0): failed to initialize system zone (-117) [ 81.890865][T10268] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 81.894958][T10265] EXT4-fs (loop0): mount failed [ 81.910483][T10285] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 81.930764][T10291] EXT4-fs (loop2): Magic mismatch, very weird! [ 81.953463][T10297] loop1: detected capacity change from 0 to 512 [ 81.963152][T10303] loop4: detected capacity change from 0 to 512 [ 81.978443][T10309] loop3: detected capacity change from 0 to 512 [ 82.009354][T10318] loop0: detected capacity change from 0 to 512 [ 82.035091][T10297] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 82.071342][T10336] loop4: detected capacity change from 0 to 512 [ 82.117429][T10348] loop0: detected capacity change from 0 to 512 [ 82.139688][T10352] loop1: detected capacity change from 0 to 512 [ 82.161313][T10348] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 82.213688][T10377] loop3: detected capacity change from 0 to 512 [ 82.217594][T10387] loop1: detected capacity change from 0 to 512 [ 82.277107][T10387] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 82.308605][T10415] loop4: detected capacity change from 0 to 512 [ 82.309636][T10420] loop5: detected capacity change from 0 to 519 [ 82.369447][T10448] loop2: detected capacity change from 0 to 512 [ 82.380590][T10451] loop3: detected capacity change from 0 to 512 [ 82.386942][T10442] loop1: detected capacity change from 0 to 512 [ 82.395321][T10446] loop4: detected capacity change from 0 to 519 [ 82.402253][T10454] loop0: detected capacity change from 0 to 512 [ 82.417688][T10448] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 82.447876][T10454] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 82.463895][T10442] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 82.484001][T10442] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/522/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 82.486174][T10420] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 82.514161][T10420] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/538/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 82.544525][T10467] loop3: detected capacity change from 0 to 512 [ 82.553910][T10470] loop4: detected capacity change from 0 to 512 [ 82.562214][T10464] loop2: detected capacity change from 0 to 519 [ 82.575326][T10470] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 82.619490][T10485] loop2: detected capacity change from 0 to 512 [ 82.620719][T10476] loop0: detected capacity change from 0 to 512 [ 82.632851][T10479] loop1: detected capacity change from 0 to 519 [ 82.644024][T10479] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 82.658269][T10485] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 82.660028][T10483] loop4: detected capacity change from 0 to 519 [ 82.694645][T10493] loop5: detected capacity change from 0 to 512 [ 82.705407][T10467] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 82.724978][T10467] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/526/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 82.761325][T10503] loop4: detected capacity change from 0 to 512 [ 82.767834][T10499] loop0: detected capacity change from 0 to 512 [ 82.768482][T10505] loop2: detected capacity change from 0 to 519 [ 82.811822][T10505] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 82.826273][T10525] loop3: detected capacity change from 0 to 512 [ 82.839371][T10505] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/525/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 82.842325][T10530] loop1: detected capacity change from 0 to 512 [ 82.856858][T10535] loop0: detected capacity change from 0 to 512 [ 82.873077][T10537] loop4: detected capacity change from 0 to 512 [ 82.896666][T10533] loop5: detected capacity change from 0 to 512 [ 82.957705][T10525] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 82.959022][T10539] EXT4-fs warning (device loop3): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 82.965837][T10542] EXT4-fs warning (device loop0): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 82.986024][T10525] EXT4-fs (loop3): failed to initialize system zone (-117) [ 83.009137][T10535] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 83.010939][T10549] loop5: detected capacity change from 0 to 512 [ 83.018623][T10547] loop2: detected capacity change from 0 to 512 [ 83.030282][T10525] EXT4-fs (loop3): mount failed [ 83.041757][T10530] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 83.056912][T10530] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/527/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 83.057597][T10535] EXT4-fs (loop0): failed to initialize system zone (-117) [ 83.080656][T10549] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 83.100510][T10537] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 83.122577][T10537] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/525/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 83.173878][T10559] loop5: detected capacity change from 0 to 512 [ 83.224861][T10535] EXT4-fs (loop0): mount failed [ 83.244149][T10571] loop3: detected capacity change from 0 to 512 [ 83.260616][T10574] loop1: detected capacity change from 0 to 512 [ 83.283171][T10586] loop0: detected capacity change from 0 to 512 [ 83.309229][T10593] loop2: detected capacity change from 0 to 512 [ 83.318281][T10599] loop5: detected capacity change from 0 to 519 [ 83.319073][T10601] loop3: detected capacity change from 0 to 512 [ 83.336758][T10601] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 83.359419][T10610] loop4: detected capacity change from 0 to 512 [ 83.368177][T10610] EXT4-fs (loop4): Magic mismatch, very weird! [ 83.369157][T10599] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 83.388978][T10599] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/546/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 83.418109][T10617] loop3: detected capacity change from 0 to 512 [ 83.422049][T10621] loop1: detected capacity change from 0 to 512 [ 83.434131][T10618] loop0: detected capacity change from 0 to 512 [ 83.445981][T10624] loop2: detected capacity change from 0 to 519 [ 83.461072][T10621] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 83.479185][T10627] loop4: detected capacity change from 0 to 512 2025/12/18 07:00:24 executed programs: 3240 [ 83.495380][T10624] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 83.525956][T10617] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 83.533771][T10618] EXT4-fs (loop0): Magic mismatch, very weird! [ 83.569907][T10637] loop5: detected capacity change from 0 to 512 [ 83.588264][T10631] loop1: detected capacity change from 0 to 519 [ 83.593353][T10640] loop3: detected capacity change from 0 to 512 [ 83.655435][T10662] loop5: detected capacity change from 0 to 512 [ 83.680818][T10663] loop2: detected capacity change from 0 to 519 [ 83.693571][T10679] loop3: detected capacity change from 0 to 512 [ 83.720196][T10695] loop0: detected capacity change from 0 to 512 [ 83.736192][T10662] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 83.752333][T10693] loop1: detected capacity change from 0 to 512 [ 83.758975][T10662] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/549/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 83.773554][T10695] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 83.806252][T10710] loop2: detected capacity change from 0 to 512 [ 83.817828][T10718] loop0: detected capacity change from 0 to 512 [ 83.818692][T10711] loop4: detected capacity change from 0 to 512 [ 83.844623][T10716] loop3: detected capacity change from 0 to 512 [ 83.851383][T10727] loop5: detected capacity change from 0 to 512 [ 83.858423][T10729] EXT4-fs warning (device loop4): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 83.887239][T10727] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 83.897878][T10711] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 83.912949][T10734] EXT4-fs warning (device loop3): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 83.928824][T10737] loop1: detected capacity change from 0 to 512 [ 83.933417][T10711] EXT4-fs (loop4): failed to initialize system zone (-117) [ 83.943247][T10711] EXT4-fs (loop4): mount failed [ 83.949911][T10716] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 83.977624][T10716] EXT4-fs (loop3): failed to initialize system zone (-117) [ 83.986106][T10716] EXT4-fs (loop3): mount failed [ 84.003345][T10737] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 84.017936][T10737] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/538/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 84.042751][T10749] loop0: detected capacity change from 0 to 512 [ 84.077678][T10753] loop2: detected capacity change from 0 to 512 [ 84.121002][T10760] loop5: detected capacity change from 0 to 512 [ 84.132969][T10769] loop4: detected capacity change from 0 to 512 [ 84.169555][T10776] loop1: detected capacity change from 0 to 512 [ 84.210602][T10792] loop3: detected capacity change from 0 to 512 [ 84.214174][T10790] loop0: detected capacity change from 0 to 512 [ 84.224959][T10776] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 84.237229][T10753] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 84.271212][T10760] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 84.328777][T10753] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/538/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 84.339764][T10769] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 84.344223][T10760] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/553/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 84.358207][T10769] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/540/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 84.402362][T10798] loop0: detected capacity change from 0 to 512 [ 84.426705][T10800] loop1: detected capacity change from 0 to 512 [ 84.442497][T10806] loop3: detected capacity change from 0 to 512 [ 84.460003][T10806] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 84.489821][T10821] loop0: detected capacity change from 0 to 512 [ 84.534294][T10821] EXT4-fs (loop0): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? [ 84.562181][T10845] loop3: detected capacity change from 0 to 512 [ 84.634482][T10860] loop5: detected capacity change from 0 to 512 [ 84.656290][T10872] loop3: detected capacity change from 0 to 512 [ 84.658339][T10866] loop2: detected capacity change from 0 to 512 [ 84.677260][T10876] loop0: detected capacity change from 0 to 518 [ 84.699983][T10860] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 84.705109][T10884] loop1: detected capacity change from 0 to 512 [ 84.713111][T10866] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 84.739667][T10876] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 84.750559][T10884] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 84.754835][T10876] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/575/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 84.772459][T10884] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/546/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 84.807991][T10900] loop5: detected capacity change from 0 to 512 [ 84.839593][T10900] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 84.847328][T10904] loop2: detected capacity change from 0 to 512 [ 84.856716][T10906] loop3: detected capacity change from 0 to 512 [ 84.894380][T10915] loop4: detected capacity change from 0 to 512 [ 84.897357][T10919] loop1: detected capacity change from 0 to 512 [ 84.904450][T10921] loop0: detected capacity change from 0 to 512 [ 84.928124][T10927] loop2: detected capacity change from 0 to 512 [ 84.940328][T10930] loop3: detected capacity change from 0 to 512 [ 84.969846][T10930] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 84.991572][T10919] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 85.012253][T10919] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/548/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 85.037650][T10953] loop4: detected capacity change from 0 to 512 [ 85.040642][T10959] loop0: detected capacity change from 0 to 512 [ 85.059671][T10953] EXT4-fs (loop4): Magic mismatch, very weird! [ 85.134031][T10968] loop2: detected capacity change from 0 to 512 [ 85.147098][T10959] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 85.157199][T10974] loop1: detected capacity change from 0 to 512 [ 85.170935][T10972] loop3: detected capacity change from 0 to 512 [ 85.171246][T10971] blk_update_request: I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 85.192155][T10971] blk_update_request: I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 85.203388][T10971] Buffer I/O error on dev loop3, logical block 0, async page read [ 85.213899][T10980] loop2: detected capacity change from 0 to 512 [ 85.224409][T10979] blk_update_request: I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 85.242332][T10990] loop1: detected capacity change from 0 to 512 [ 85.247474][T11001] loop5: detected capacity change from 0 to 512 [ 85.255104][T10995] loop0: detected capacity change from 0 to 518 [ 85.266674][T10990] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 85.279844][T11004] loop4: detected capacity change from 0 to 512 [ 85.294952][T11004] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 85.337184][T11011] loop5: detected capacity change from 0 to 512 [ 85.344882][T11007] loop0: detected capacity change from 0 to 518 [ 85.350954][T11019] loop4: detected capacity change from 0 to 512 [ 85.361387][T11016] loop3: detected capacity change from 0 to 512 [ 85.391274][T11016] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 85.407425][T11032] loop1: detected capacity change from 0 to 512 [ 85.420263][T11032] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 85.478353][T11064] loop0: detected capacity change from 0 to 512 [ 85.506463][T11068] loop4: detected capacity change from 0 to 512 [ 85.506763][T11067] blk_update_request: I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 85.551089][T11064] EXT4-fs (loop0): revision level too high, forcing read-only mode [ 85.567541][T11093] loop1: detected capacity change from 0 to 512 [ 85.575038][T11064] EXT4-fs (loop0): failed to initialize system zone (-117) [ 85.594875][T11064] EXT4-fs (loop0): mount failed [ 85.714382][T11137] loop0: detected capacity change from 0 to 512 [ 85.720884][T11144] loop1: detected capacity change from 0 to 519 [ 85.745455][T11150] loop5: detected capacity change from 0 to 512 [ 85.753245][T11137] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 85.775794][T11150] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 85.858932][T11184] loop2: detected capacity change from 0 to 512 [ 85.887461][T11208] loop5: detected capacity change from 0 to 512 [ 85.924578][T11222] loop4: detected capacity change from 0 to 512 [ 85.949308][T11225] loop1: detected capacity change from 0 to 512 [ 85.966832][T11233] loop2: detected capacity change from 0 to 512 [ 86.011251][T11256] loop1: detected capacity change from 0 to 512 [ 86.019325][T11259] loop0: detected capacity change from 0 to 512 [ 86.027811][T11262] loop4: detected capacity change from 0 to 512 [ 86.050588][T11262] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 86.093008][T11280] loop2: detected capacity change from 0 to 512 [ 86.095004][T11256] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 86.112401][T11282] loop3: detected capacity change from 0 to 517 [ 86.123176][T11256] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/564/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 86.140527][T11282] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 86.155057][T11289] loop5: detected capacity change from 0 to 512 [ 86.165859][T11289] EXT4-fs (loop5): Magic mismatch, very weird! [ 86.168359][T11292] loop4: detected capacity change from 0 to 512 [ 86.179800][T11291] blk_update_request: I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 86.210649][T11295] loop2: detected capacity change from 0 to 512 [ 86.221278][T11301] loop3: detected capacity change from 0 to 512 [ 86.235180][T11304] loop0: detected capacity change from 0 to 512 [ 86.258519][T11310] loop5: detected capacity change from 0 to 512 [ 86.284562][T11314] loop4: detected capacity change from 0 to 519 [ 86.301705][T11328] loop2: detected capacity change from 0 to 512 [ 86.301942][T11323] loop1: detected capacity change from 0 to 519 [ 86.327736][T11326] loop0: detected capacity change from 0 to 518 [ 86.333865][T11314] EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 86.340391][T11310] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 86.348744][T11314] EXT4-fs (loop4): group descriptors corrupted! [ 86.353699][T11310] EXT4-fs (loop5): group descriptors corrupted! [ 86.385428][T11335] loop3: detected capacity change from 0 to 512 [ 86.408444][T11345] loop2: detected capacity change from 0 to 512 [ 86.415100][T11323] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 86.429939][T11347] EXT4-fs warning (device loop3): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 86.439323][T11323] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/566/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 86.441831][T11335] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 86.464410][T11335] EXT4-fs (loop3): failed to initialize system zone (-117) [ 86.471871][T11335] EXT4-fs (loop3): mount failed [ 86.492711][T11352] loop2: detected capacity change from 0 to 512 [ 86.506016][T11355] loop5: detected capacity change from 0 to 519 [ 86.506401][T11354] blk_update_request: I/O error, dev loop5, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 86.514841][T11359] loop4: detected capacity change from 0 to 512 [ 86.530811][T11357] loop0: detected capacity change from 0 to 512 [ 86.562267][T11367] loop3: detected capacity change from 0 to 512 [ 86.566857][T11366] loop1: detected capacity change from 0 to 512 [ 86.583854][T11359] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 86.594836][T11367] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 86.650172][T11392] loop0: detected capacity change from 0 to 512 [ 86.660154][T11402] loop2: detected capacity change from 0 to 512 [ 86.679579][T11392] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 86.708104][T11416] loop2: detected capacity change from 0 to 512 [ 86.720450][T11425] loop4: detected capacity change from 0 to 512 [ 86.723763][T11424] blk_update_request: I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 86.747526][T11424] blk_update_request: I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 86.758601][T11424] Buffer I/O error on dev loop4, logical block 0, async page read [ 86.785348][T11444] loop0: detected capacity change from 0 to 512 [ 86.807545][T11452] loop1: detected capacity change from 0 to 512 [ 86.828181][T11455] loop4: detected capacity change from 0 to 519 [ 86.842813][T11444] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 86.845723][T11461] loop5: detected capacity change from 0 to 512 [ 86.884280][T11467] loop2: detected capacity change from 0 to 512 [ 86.933985][T11485] loop3: detected capacity change from 0 to 512 [ 86.934399][T11481] loop5: detected capacity change from 0 to 512 [ 86.948677][T11455] EXT4-fs (loop4): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 86.964516][T11455] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/574/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 87.007733][T11481] EXT4-fs (loop5): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 87.036137][T11503] loop0: detected capacity change from 0 to 512 [ 87.037490][T11505] loop2: detected capacity change from 0 to 512 [ 87.050854][T11481] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/595/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 87.054349][T11508] loop3: detected capacity change from 0 to 512 [ 87.066076][T11503] EXT4-fs warning (device loop0): read_mmp_block:115: Error -74 while reading MMP block 12 [ 87.073274][T11510] loop1: detected capacity change from 0 to 512 [ 87.112227][T11510] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 87.117987][T11505] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 87.136797][T11505] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/582/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 87.167929][T11524] loop4: detected capacity change from 0 to 512 [ 87.209900][T11524] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 87.246862][T11545] loop2: detected capacity change from 0 to 512 [ 87.264290][T11551] loop0: detected capacity change from 0 to 512 [ 87.314549][T11564] loop2: detected capacity change from 0 to 512 [ 87.314549][T11567] loop5: detected capacity change from 0 to 512 [ 87.366104][T11587] loop0: detected capacity change from 0 to 512 [ 87.368012][T11595] loop4: detected capacity change from 0 to 512 [ 87.373034][T11564] EXT4-fs (loop2): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 87.405041][T11598] loop1: detected capacity change from 0 to 512 [ 87.412936][T11564] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/585/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 87.431447][T11601] loop3: detected capacity change from 0 to 512 [ 87.477743][T11614] loop1: detected capacity change from 0 to 512 [ 87.489977][T11614] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 87.527314][T11631] loop0: detected capacity change from 0 to 512 [ 87.547416][T11642] loop4: detected capacity change from 0 to 512 [ 87.549400][T11644] loop1: detected capacity change from 0 to 512 [ 87.577276][T11652] loop3: detected capacity change from 0 to 512 [ 87.588379][T11642] EXT4-fs (loop4): VFS: Can't find ext4 filesystem [ 87.618394][T11662] loop2: detected capacity change from 0 to 512 [ 87.638866][T11666] loop5: detected capacity change from 0 to 512 [ 87.651886][T11631] EXT4-fs (loop0): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 87.668400][T11666] EXT4-fs (loop5): VFS: Can't find ext4 filesystem [ 87.675599][T11631] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/613/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 87.710649][T11674] loop4: detected capacity change from 0 to 512 [ 87.713186][T11676] loop3: detected capacity change from 0 to 512 [ 87.748953][T11681] loop2: detected capacity change from 0 to 512 [ 87.749902][T11674] EXT4-fs (loop4): Magic mismatch, very weird! [ 87.799410][T11692] loop5: detected capacity change from 0 to 512 [ 87.818683][T11692] EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 87.837468][T11695] loop0: detected capacity change from 0 to 512 [ 87.869718][T11692] EXT4-fs (loop5): group descriptors corrupted! [ 87.908745][T11710] loop3: detected capacity change from 0 to 512 [ 87.909036][T11714] loop2: detected capacity change from 0 to 512 [ 87.922926][T11712] loop1: detected capacity change from 0 to 512 [ 87.961296][T11710] EXT4-fs (loop3): ext4_check_descriptors: Checksum for group 0 failed (47122!=0) [ 87.974564][T11732] loop0: detected capacity change from 0 to 512 [ 87.994192][T11710] EXT4-fs (loop3): group descriptors corrupted! [ 88.001246][T11714] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 88.018499][T11743] loop4: detected capacity change from 0 to 512 [ 88.025358][T11732] EXT4-fs (loop0): VFS: Can't find ext4 filesystem [ 88.043306][T11743] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 88.046245][T11712] EXT4-fs (loop1): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 88.067883][T11712] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/591/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 88.111262][T11751] loop3: detected capacity change from 0 to 512 [ 88.136062][T11751] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 88.140040][T11758] loop0: detected capacity change from 0 to 512 [ 88.143256][T11760] loop2: detected capacity change from 0 to 512 [ 88.157558][T11764] loop5: detected capacity change from 0 to 512 [ 88.172439][T11760] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 88.179720][T11764] EXT4-fs (loop5): Magic mismatch, very weird! [ 88.202610][T11773] loop3: detected capacity change from 0 to 512 [ 88.237670][T11776] loop0: detected capacity change from 0 to 512 [ 88.244579][T11773] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 88.282316][T11790] loop5: detected capacity change from 0 to 512 [ 88.327621][T11799] loop3: detected capacity change from 0 to 512 [ 88.338525][T11803] loop1: detected capacity change from 0 to 512 [ 88.356309][T11803] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 88.369089][T11799] EXT4-fs (loop3): mounted filesystem without journal. Opts: nodiscard,barrier,nouid32,grpquota,,errors=continue. Quota mode: writeback. [ 88.373371][T11805] loop0: detected capacity change from 0 to 518 [ 88.414227][T11799] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/596/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 88.417510][T11831] loop4: detected capacity change from 0 to 512 [ 88.431093][T11790] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/613/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 88.458177][T11835] loop2: detected capacity change from 0 to 512 [ 88.494882][T11805] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/620/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 88.516342][T11835] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 2025/12/18 07:00:29 executed programs: 3631 [ 88.542891][T11849] loop4: detected capacity change from 0 to 512 [ 88.557522][T11853] loop2: detected capacity change from 0 to 512 [ 88.571519][T11855] loop3: detected capacity change from 0 to 512 [ 88.581953][T11857] loop1: detected capacity change from 0 to 512 [ 88.597878][T11855] EXT4-fs warning (device loop3): read_mmp_block:115: Error -74 while reading MMP block 12 [ 88.599898][T11860] loop5: detected capacity change from 0 to 512 [ 88.614442][T11857] EXT4-fs warning (device loop1): read_mmp_block:115: Error -74 while reading MMP block 12 [ 88.639393][T11860] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 88.652457][T11849] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/598/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 88.692988][T11871] loop2: detected capacity change from 0 to 512 [ 88.738104][T11868] loop1: detected capacity change from 0 to 519 [ 88.816202][T11871] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/599/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 88.868386][T11893] loop0: detected capacity change from 0 to 518 [ 88.871407][T11890] loop3: detected capacity change from 0 to 512 [ 88.885761][T11890] EXT4-fs (loop3): Magic mismatch, very weird! [ 88.903615][T11900] loop5: detected capacity change from 0 to 512 [ 88.906710][T11902] loop1: detected capacity change from 0 to 512 [ 88.917222][T11900] EXT4-fs (loop5): Magic mismatch, very weird! [ 88.950707][T11908] loop3: detected capacity change from 0 to 512 [ 88.972401][T11908] EXT4-fs (loop3): VFS: Can't find ext4 filesystem [ 88.980112][T11914] loop0: detected capacity change from 0 to 518 [ 88.999384][T11921] loop2: detected capacity change from 0 to 512 [ 89.007839][T11924] loop5: detected capacity change from 0 to 512 [ 89.008340][T11926] loop1: detected capacity change from 0 to 512 [ 89.027645][T11924] EXT4-fs (loop5): Encoding requested by superblock is unknown [ 89.067871][T11943] loop3: detected capacity change from 0 to 512 [ 89.078795][T11926] EXT4-fs (loop1): VFS: Can't find ext4 filesystem [ 89.096563][T11945] loop2: detected capacity change from 0 to 519 [ 89.115474][T11951] loop4: detected capacity change from 0 to 512 [ 89.152042][T11963] loop2: detected capacity change from 0 to 512 [ 89.168514][T11971] loop5: detected capacity change from 0 to 512 [ 89.182876][T11974] loop3: detected capacity change from 0 to 512 [ 89.184888][T11963] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 89.191003][T11951] EXT4-fs (loop4): revision level too high, forcing read-only mode [ 89.212594][T11978] loop0: detected capacity change from 0 to 512 [ 89.225467][T11951] EXT4-fs (loop4): failed to initialize system zone (-117) [ 89.233558][T11951] EXT4-fs (loop4): mount failed [ 89.266334][T11984] loop1: detected capacity change from 0 to 512 [ 89.286421][T11989] loop0: detected capacity change from 0 to 518 [ 89.301954][T11995] loop3: detected capacity change from 0 to 512 [ 89.318359][T11971] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/622/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 89.393094][T12019] loop2: detected capacity change from 0 to 512 [ 89.415835][T12004] loop1: detected capacity change from 0 to 519 [ 89.416915][T12011] loop3: detected capacity change from 0 to 512 [ 89.429049][T12009] loop0: detected capacity change from 0 to 512 [ 89.476605][T12009] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/628/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 89.477279][T12019] ext4 filesystem being mounted at /root/syzkaller-testdir3457321205/syzkaller.1m8vay/607/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 89.516335][T12038] loop3: detected capacity change from 0 to 517 [ 89.558483][T12059] loop1: detected capacity change from 0 to 512 [ 89.568110][T12061] loop4: detected capacity change from 0 to 512 [ 89.600348][T12059] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/606/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 89.658045][T12038] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/608/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 89.738808][T12092] loop4: detected capacity change from 0 to 512 [ 89.751652][T12086] loop2: detected capacity change from 0 to 512 [ 89.759626][T12088] loop0: detected capacity change from 0 to 512 [ 89.770011][T12090] loop5: detected capacity change from 0 to 512 [ 89.810122][T12099] loop3: detected capacity change from 0 to 512 [ 89.820290][T12088] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/630/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 89.843611][T12107] loop1: detected capacity change from 0 to 512 [ 89.861033][T12086] EXT4-fs warning (device loop2): read_mmp_block:115: Error -74 while reading MMP block 12 [ 89.874616][T12099] ext4 filesystem being mounted at /root/syzkaller-testdir1277246803/syzkaller.bve3QZ/609/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 89.878823][T12112] loop4: detected capacity change from 0 to 512 [ 89.902376][T12115] loop5: detected capacity change from 0 to 512 [ 89.920283][T12107] ext4 filesystem being mounted at /root/syzkaller-testdir1895082084/syzkaller.krHPMx/609/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 89.944454][T12120] loop0: detected capacity change from 0 to 518 [ 89.962016][T12124] loop3: detected capacity change from 0 to 512 [ 89.985191][T12115] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/631/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 89.987742][T12112] ext4 filesystem being mounted at /root/syzkaller-testdir1963820108/syzkaller.VNzZij/613/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 90.000672][T12132] EXT4-fs warning (device loop3): kmmpd:170: kmmpd being stopped since MMP feature has been disabled. [ 90.030350][T12124] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 90.046884][T12128] loop2: detected capacity change from 0 to 512 [ 90.047217][T12124] EXT4-fs (loop3): failed to initialize system zone (-117) [ 90.060775][T12124] EXT4-fs (loop3): mount failed [ 90.084628][T12142] loop0: detected capacity change from 0 to 512 [ 90.115939][T12154] loop1: detected capacity change from 0 to 512 [ 90.125995][T12154] EXT4-fs (loop1): revision level too high, forcing read-only mode [ 90.127109][T12141] blk_update_request: I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 0 [ 90.134301][T12154] EXT4-fs (loop1): failed to initialize system zone (-117) [ 90.153236][T12154] EXT4-fs (loop1): mount failed [ 90.168141][T12166] loop3: detected capacity change from 0 to 512 [ 90.186130][T12183] loop2: detected capacity change from 0 to 512 [ 90.211870][T12187] loop5: detected capacity change from 0 to 512 [ 90.220587][T12166] EXT4-fs (loop3): revision level too high, forcing read-only mode [ 90.229040][T12183] EXT4-fs (loop2): VFS: Can't find ext4 filesystem [ 90.249436][T12187] EXT4-fs warning (device loop5): read_mmp_block:115: Error -74 while reading MMP block 12 [ 90.268084][T12192] loop4: detected capacity change from 0 to 512 [ 90.276286][T12191] loop1: detected capacity change from 0 to 512 [ 90.300117][T12166] EXT4-fs (loop3): failed to initialize system zone (-117) [ 90.303457][T12191] ------------[ cut here ]------------ [ 90.307591][T12166] EXT4-fs (loop3): mount failed [ 90.321183][T12191] kernel BUG at fs/ext4/super.c:6397! [ 90.326666][T12191] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 90.327472][T12198] loop0: detected capacity change from 0 to 512 [ 90.332913][T12191] CPU: 1 PID: 12191 Comm: syz-executor.1 Not tainted syzkaller #0 [ 90.332934][T12191] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 90.356975][T12191] RIP: 0010:ext4_enable_quotas+0x6c9/0x6d0 [ 90.362801][T12191] Code: ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c a4 fa ff ff 4c 89 f7 e8 26 67 c2 ff e9 97 fa ff ff e8 2c b5 be 02 e8 87 e4 83 ff <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 [ 90.382582][T12191] RSP: 0018:ffffc90004337910 EFLAGS: 00010293 [ 90.388672][T12191] RAX: ffffffff81e4dac9 RBX: ffff8881238e6000 RCX: ffff888128a58000 [ 90.396633][T12191] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 90.404598][T12191] RBP: ffffc900043379b0 R08: dffffc0000000000 R09: ffffed10250f5ef6 [ 90.412752][T12191] R10: ffffed10250f5ef6 R11: 1ffff110250f5ef5 R12: 0000000000000004 [ 90.420802][T12191] R13: ffff888123eb3464 R14: 0000000000000000 R15: 0000000000000001 [ 90.429295][T12191] FS: 00007f184e4436c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 90.438298][T12191] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.445121][T12191] CR2: 000055558882c858 CR3: 0000000124291000 CR4: 00000000003506a0 [ 90.453171][T12191] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.461211][T12191] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.469462][T12191] Call Trace: [ 90.473246][T12191] [ 90.476165][T12191] ext4_fill_super+0x87c3/0x9090 [ 90.481103][T12191] ? ext4_mount+0x40/0x40 [ 90.485573][T12191] ? set_blocksize+0x1fc/0x380 [ 90.490318][T12191] ? sb_set_blocksize+0xaa/0xf0 [ 90.495148][T12191] ? ext4_mount+0x40/0x40 [ 90.499488][T12191] mount_bdev+0x2ae/0x3e0 [ 90.503919][T12191] ? ext4_mount+0x40/0x40 [ 90.508331][T12191] ext4_mount+0x34/0x40 [ 90.512478][T12191] legacy_get_tree+0xed/0x190 [ 90.517154][T12191] ? ext4_errno_to_code+0x160/0x160 [ 90.522432][T12191] vfs_get_tree+0x89/0x260 [ 90.526938][T12191] do_new_mount+0x25a/0xa20 [ 90.531440][T12191] path_mount+0x675/0x1020 [ 90.535856][T12191] ? user_path_at_empty+0x161/0x1c0 [ 90.541037][T12191] __se_sys_mount+0x318/0x380 [ 90.545708][T12191] ? __x64_sys_mount+0xd0/0xd0 [ 90.550467][T12191] __x64_sys_mount+0xbf/0xd0 [ 90.555049][T12191] x64_sys_call+0x6bf/0x9a0 [ 90.559541][T12191] do_syscall_64+0x4c/0xa0 [ 90.563956][T12191] ? clear_bhb_loop+0x50/0xa0 [ 90.568621][T12191] ? clear_bhb_loop+0x50/0xa0 [ 90.573280][T12191] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 90.579163][T12191] RIP: 0033:0x7f184e8c21ea [ 90.583572][T12191] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 90.603806][T12191] RSP: 002b:00007f184e442ee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 90.612210][T12191] RAX: ffffffffffffffda RBX: 00007f184e442f80 RCX: 00007f184e8c21ea [ 90.620250][T12191] RDX: 00000000200005c0 RSI: 0000000020000000 RDI: 00007f184e442f40 [ 90.628297][T12191] RBP: 00000000200005c0 R08: 00007f184e442f80 R09: 0000000000200810 [ 90.636337][T12191] R10: 0000000000200810 R11: 0000000000000246 R12: 0000000020000000 [ 90.644292][T12191] R13: 00007f184e442f40 R14: 00000000000004da R15: 0000000020001400 [ 90.652644][T12191] [ 90.655656][T12191] Modules linked in: [ 90.667814][T12191] ---[ end trace e05f27e7dcdd2a44 ]--- [ 90.669104][T12201] loop5: detected capacity change from 0 to 512 [ 90.673699][T12191] RIP: 0010:ext4_enable_quotas+0x6c9/0x6d0 [ 90.693853][T12191] Code: ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c a4 fa ff ff 4c 89 f7 e8 26 67 c2 ff e9 97 fa ff ff e8 2c b5 be 02 e8 87 e4 83 ff <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 [ 90.694602][T12192] EXT4-fs warning (device loop4): read_mmp_block:115: Error -74 while reading MMP block 12 [ 90.714714][T12191] RSP: 0018:ffffc90004337910 EFLAGS: 00010293 [ 90.746061][T12198] ext4 filesystem being mounted at /root/syzkaller-testdir1754539274/syzkaller.TqCWKU/634/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 90.805872][T12201] ext4 filesystem being mounted at /root/syzkaller-testdir3634701846/syzkaller.oO5l7S/636/ext4 supports timestamps until 2038-01-19 (0x7fffffff) [ 90.820848][T12191] RAX: ffffffff81e4dac9 RBX: ffff8881238e6000 RCX: ffff888128a58000 [ 90.829011][T12191] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 90.837265][T12191] RBP: ffffc900043379b0 R08: dffffc0000000000 R09: ffffed10250f5ef6 [ 90.839766][T12215] loop4: detected capacity change from 0 to 512 [ 90.845302][T12191] R10: ffffed10250f5ef6 R11: 1ffff110250f5ef5 R12: 0000000000000004 [ 90.845323][T12191] R13: ffff888123eb3464 R14: 0000000000000000 R15: 0000000000000001 [ 90.845334][T12191] FS: 00007f184e4436c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 90.876826][T12191] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.884989][T12191] CR2: 00007fa4a9152086 CR3: 0000000124291000 CR4: 00000000003506b0 [ 90.893070][T12191] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.901273][T12191] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.909698][T12191] Kernel panic - not syncing: Fatal exception [ 90.916166][T12191] Kernel Offset: disabled [ 90.920512][T12191] Rebooting in 86400 seconds..