INFO: task syz-executor351:7611 blocked for more than 143 seconds. Not tainted 6.0.0-syzkaller-06475-g4c86114194e6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor351 state:D stack:26288 pid: 7611 ppid: 3669 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5183 [inline] __schedule+0xadf/0x52b0 kernel/sched/core.c:6495 schedule+0xda/0x1b0 kernel/sched/core.c:6571 io_schedule+0xba/0x130 kernel/sched/core.c:8715 folio_wait_bit_common+0x3dd/0xa90 mm/filemap.c:1298 __folio_lock mm/filemap.c:1664 [inline] folio_lock include/linux/pagemap.h:939 [inline] folio_lock include/linux/pagemap.h:935 [inline] __filemap_get_folio+0xc6d/0xed0 mm/filemap.c:1936 truncate_inode_pages_range+0x37c/0x1510 mm/truncate.c:378 ntfs_evict_inode+0x16/0xa0 fs/ntfs3/inode.c:1741 evict+0x2ed/0x6b0 fs/inode.c:664 iput_final fs/inode.c:1747 [inline] iput.part.0+0x55d/0x810 fs/inode.c:1773 iput+0x58/0x70 fs/inode.c:1763 ntfs_fill_super+0x2e89/0x37f0 fs/ntfs3/super.c:1190 get_tree_bdev+0x440/0x760 fs/super.c:1323 vfs_get_tree+0x89/0x2f0 fs/super.c:1530 do_new_mount fs/namespace.c:3040 [inline] path_mount+0x1326/0x1e20 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568 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+0x63/0xcd RIP: 0033:0x7f06d4cf328a RSP: 002b:00007f06d4c99168 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f06d4cf328a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f06d4c99180 RBP: 0000000000000004 R08: 00007f06d4c991c0 R09: 00007f06d4c996b8 R10: 0000000000000000 R11: 0000000000000286 R12: 00007f06d4c991c0 R13: 000000000000010c R14: 00007f06d4c99180 R15: 0000000020001b20 Showing all locks held in the system: 2 locks held by kworker/0:0/7: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8bf85bf0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/14: #0: ffffffff8bf858f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/29: #0: ffffffff8bf86740 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6492 2 locks held by getty/3284: #0: ffff888026ede098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177 1 lock held by syz-executor351/3671: #0: ffffffff8bf91438 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline] #0: ffffffff8bf91438 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x5db/0x770 kernel/rcu/tree_exp.h:946 1 lock held by syz-executor351/3672: #0: ffffffff8bf91438 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline] #0: ffffffff8bf91438 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x24b/0x770 kernel/rcu/tree_exp.h:946 1 lock held by udevd/3686: 2 locks held by udevd/3693: 1 lock held by udevd/3716: 1 lock held by udevd/3717: #0: ffff888140c108c0 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] #0: ffff888140c108c0 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: page_cache_ra_unbounded+0x153/0x550 mm/readahead.c:220 2 locks held by udevd/3723: 1 lock held by syz-executor351/7611: #0: ffff88807cd820e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.0.0-syzkaller-06475-g4c86114194e6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x46/0x14f lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x206/0x250 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline] watchdog+0xc18/0xf50 kernel/hung_task.c:369 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 13492 Comm: syz-executor351 Not tainted 6.0.0-syzkaller-06475-g4c86114194e6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:__lock_is_held kernel/locking/lockdep.c:5404 [inline] RIP: 0010:lock_is_held_type+0x86/0x140 kernel/locking/lockdep.c:5709 Code: 31 db e8 3d 15 00 00 41 8b 84 24 70 0a 00 00 4d 8d ac 24 78 0a 00 00 65 ff 05 96 c8 7d 76 85 c0 7f 12 e9 8a 00 00 00 83 c3 01 <41> 3b 9c 24 70 0a 00 00 7d 7d 48 63 c3 48 89 ee 48 8d 04 80 4d 8d RSP: 0018:ffffc9000d90f890 EFLAGS: 00000006 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffff8880787389d8 RDI: ffff8880254c8ac8 RBP: ffff8880787389d8 R08: 0000000000000001 R09: 000000000000003f R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880254c8000 R13: ffff8880254c8a78 R14: 00000000ffffffff R15: ffff8880254c8ac8 FS: 00007f06d4c99700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff1c258528 CR3: 00000000257db000 CR4: 0000000000350ef0 Call Trace: lock_is_held include/linux/lockdep.h:283 [inline] xa_entry include/linux/xarray.h:1198 [inline] xas_descend+0xea/0x440 lib/xarray.c:204 xas_load+0xe5/0x140 lib/xarray.c:242 mapping_get_entry mm/filemap.c:1858 [inline] __filemap_get_folio+0x14e/0xed0 mm/filemap.c:1920 shmem_getpage_gfp+0x44b/0x1f30 mm/shmem.c:1861 shmem_getpage mm/shmem.c:150 [inline] shmem_write_begin+0xff/0x1e0 mm/shmem.c:2512 generic_perform_write+0x246/0x560 mm/filemap.c:3738 __generic_file_write_iter+0x2aa/0x4d0 mm/filemap.c:3866 generic_file_write_iter+0xdf/0x350 mm/filemap.c:3898 call_write_iter include/linux/fs.h:2188 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x9e9/0xdd0 fs/read_write.c:584 ksys_pwrite64 fs/read_write.c:699 [inline] __do_sys_pwrite64 fs/read_write.c:709 [inline] __se_sys_pwrite64 fs/read_write.c:706 [inline] __x64_sys_pwrite64+0x1f7/0x250 fs/read_write.c:706 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+0x63/0xcd RIP: 0033:0x7f06d4cae357 Code: 08 89 3c 24 48 89 4c 24 18 e8 35 fb ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 65 fb ff ff 48 8b RSP: 002b:00007f06d4c99140 EFLAGS: 00000293 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f06d4cae357 RDX: 0000000000000020 RSI: 00000000200111a0 RDI: 0000000000000003 RBP: 000000000000010c R08: 0000000000000000 R09: 00007f06d4c996b8 R10: 00000000000221e0 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000015 R14: 00007f06d4c99180 R15: 00000000200003f8