INFO: task syz-executor.3:9164 can't die for more than 143 seconds. task:syz-executor.3 state:D stack:26312 pid: 9164 ppid: 3629 flags:0x00004006 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 __memcg_kmem_charge_page+0x368/0x5a0 mm/memcontrol.c:3045 __alloc_pages+0x1da/0x500 mm/page_alloc.c:5393 __alloc_pages_node include/linux/gfp.h:566 [inline] alloc_pages_node include/linux/gfp.h:589 [inline] bpf_ringbuf_area_alloc kernel/bpf/ringbuf.c:96 [inline] bpf_ringbuf_alloc kernel/bpf/ringbuf.c:133 [inline] ringbuf_map_alloc kernel/bpf/ringbuf.c:172 [inline] ringbuf_map_alloc+0x2cb/0x7b0 kernel/bpf/ringbuf.c:148 find_and_alloc_map kernel/bpf/syscall.c:127 [inline] map_create kernel/bpf/syscall.c:864 [inline] __sys_bpf+0xc12/0x5970 kernel/bpf/syscall.c:4615 __do_sys_bpf kernel/bpf/syscall.c:4737 [inline] __se_sys_bpf kernel/bpf/syscall.c:4735 [inline] __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4735 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: 0033:0x7ffafab69e99 RSP: 002b:00007ffaf94df168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007ffafac7cf60 RCX: 00007ffafab69e99 RDX: 0000000000000040 RSI: 0000000020000200 RDI: 0000000000000000 RBP: 00007ffafabc3ff1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc7ec8656f R14: 00007ffaf94df300 R15: 0000000000022000 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/2959: 2 locks held by getty/3279: #0: ffff88814b0ac098 (&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 =============================================