INFO: task syz-executor.1:3634 can't die for more than 143 seconds. task:syz-executor.1 state:D stack:22368 pid: 3634 ppid: 1 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6296 schedule+0xd2/0x260 kernel/sched/core.c:6369 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881 reclaim_throttle+0x1ce/0x5e0 mm/vmscan.c:1072 consider_reclaim_throttle mm/vmscan.c:3399 [inline] shrink_zones mm/vmscan.c:3486 [inline] do_try_to_free_pages+0x7cd/0x1620 mm/vmscan.c:3541 try_to_free_mem_cgroup_pages+0x2cd/0x840 mm/vmscan.c:3855 try_charge_memcg+0x298/0x10f0 mm/memcontrol.c:2598 obj_cgroup_charge_pages+0x1e/0x90 mm/memcontrol.c:3018 obj_cgroup_charge+0xf3/0x280 mm/memcontrol.c:3287 memcg_slab_pre_alloc_hook mm/slab.h:519 [inline] slab_pre_alloc_hook mm/slab.h:744 [inline] slab_alloc_node mm/slub.c:3145 [inline] slab_alloc mm/slub.c:3239 [inline] kmem_cache_alloc+0x92/0x3a0 mm/slub.c:3244 __d_alloc+0x2a/0x950 fs/dcache.c:1769 d_alloc+0x4a/0x230 fs/dcache.c:1848 __lookup_hash+0xc8/0x180 fs/namei.c:1604 filename_create+0x184/0x480 fs/namei.c:3705 do_mkdirat+0x94/0x300 fs/namei.c:3948 __do_sys_mkdir fs/namei.c:3979 [inline] __se_sys_mkdir fs/namei.c:3977 [inline] __x64_sys_mkdir+0xf2/0x140 fs/namei.c:3977 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fef388f9fa7 RSP: 002b:00007ffc7d1c8148 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffc7d1c81d0 RCX: 00007fef388f9fa7 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffc7d1c81d0 RBP: 00007ffc7d1c81ac R08: 0000000000000000 R09: 0000000000000005 R10: 00007ffc7d1c7ee5 R11: 0000000000000206 R12: 0000000000000032 R13: 0000000000076669 R14: 0000000000000013 R15: 00007ffc7d1c8210 Showing all locks held in the system: 1 lock held by khungtaskd/26: #0: ffffffff8bb818a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460 1 lock held by klogd/2960: #0: ffff8880b9d39c98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:489 2 locks held by getty/3285: #0: ffff88802315a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc90002b962e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077 2 locks held by syz-executor.1/3634: #0: ffff88807f13c460 (sb_writers#5){.+.+}-{0:0}, at: filename_create+0xf3/0x480 fs/namei.c:3699 #1: ffff8880741ae7a0 (&type->i_mutex_dir_key#4/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:812 [inline] #1: ffff8880741ae7a0 (&type->i_mutex_dir_key#4/1){+.+.}-{3:3}, at: filename_create+0x158/0x480 fs/namei.c:3704 =============================================