EXT4-fs error (device loop7): ext4_quota_enable:7179: comm syz-executor.7: Bad quota inode: 3, type: 0 EXT4-fs warning (device loop7): ext4_enable_quotas:7217: Failed to enable quota tracking (type=0, err=-117, ino=3). Please run e2fsck to fix. EXT4-fs (loop7): mount failed BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 49s! Showing busy workqueues and worker pools: workqueue events: flags=0x100 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=3 pending: e1000_watchdog, vmstat_shepherd pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 in-flight: 16442:free_ipc workqueue events_unbound: flags=0x2 pwq 9: cpus=0-1 node=0 flags=0x4 nice=0 active=7 refcnt=8 pending: crng_reseed, 6*cfg80211_wiphy_work pwq 10: cpus=0-1 node=0 flags=0x4 nice=0 active=4 refcnt=5 in-flight: 1106:fsnotify_mark_destroy_workfn fsnotify_mark_destroy_workfn ,351:fsnotify_connector_destroy_workfn fsnotify_connector_destroy_workfn workqueue events_power_efficient: flags=0x180 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: gc_worker workqueue events_freezable_pwr_efficient: flags=0x184 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: disk_events_workfn workqueue rcu_gp: flags=0x108 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: srcu_invoke_callbacks workqueue kvfree_rcu_reclaim: flags=0xa pwq 9: cpus=0-1 node=0 flags=0x4 nice=0 active=1 refcnt=2 pending: kfree_rcu_monitor pwq 10: cpus=0-1 node=0 flags=0x4 nice=0 active=1 refcnt=2 in-flight: 50:kfree_rcu_monitor workqueue netns: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 in-flight: 66:cleanup_net workqueue mm_percpu_wq: flags=0x8 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=2 refcnt=4 pending: lru_add_drain_per_cpu BAR(16558), vmstat_update workqueue writeback: flags=0x4a pwq 9: cpus=0-1 node=0 flags=0x4 nice=0 active=5 refcnt=6 pending: wb_update_bandwidth_workfn, 4*wb_workfn pwq 10: cpus=0-1 node=0 flags=0x4 nice=0 active=3 refcnt=4 in-flight: 16572:wb_workfn ,6344:wb_workfn ,110:wb_workfn workqueue kblockd: flags=0x18 pwq 3: cpus=0 node=0 flags=0x0 nice=-20 active=3 refcnt=4 pending: 3*blk_mq_timeout_work pwq 7: cpus=1 node=0 flags=0x0 nice=-20 active=2 refcnt=3 in-flight: 46:blk_mq_run_work_fn ,16213:blk_mq_timeout_work pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=0s workers=3 idle: 13971 23 pool 7: cpus=1 node=0 flags=0x0 nice=-20 hung=0s workers=3 idle: 46 11177 pool 8: cpus=0-1 flags=0x4 nice=0 hung=0s workers=3 idle: 14511 12 pool 10: cpus=0-1 node=0 flags=0x4 nice=0 hung=0s workers=18 idle: 110 16576 14512 15464 15487 8174 10484 16574 14323 16566 16575 4075 16573 Showing backtraces of running workers in stalled CPU-bound worker pools: loop2: detected capacity change from 0 to 1024 EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. EXT4-fs error (device loop2): ext4_lookup:1787: inode #2: comm syz-executor.2: deleted inode referenced: 12 EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop2: detected capacity change from 0 to 1024 EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. EXT4-fs error (device loop2): ext4_lookup:1787: inode #2: comm syz-executor.2: deleted inode referenced: 12 EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000.