INFO: task syz.1.220:7185 blocked for more than 143 seconds. Not tainted 6.11.0-rc5-syzkaller-gdf54f4a16f82 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.220 state:D stack:0 pid:7185 tgid:7184 ppid:6394 flags:0x00000001 Call trace: __switch_to+0x418/0x658 arch/arm64/kernel/process.c:579 context_switch kernel/sched/core.c:5188 [inline] __schedule+0x13d4/0x2418 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6621 io_schedule+0x8c/0x124 kernel/sched/core.c:7401 folio_wait_bit_common+0x65c/0xb90 mm/filemap.c:1307 __folio_lock+0x2c/0x3c mm/filemap.c:1645 folio_lock include/linux/pagemap.h:1050 [inline] z_erofs_fill_bio_vec fs/erofs/zdata.c:1470 [inline] z_erofs_submit_queue fs/erofs/zdata.c:1650 [inline] z_erofs_runqueue+0x838/0x17ec fs/erofs/zdata.c:1732 z_erofs_readahead+0x858/0xc18 fs/erofs/zdata.c:1863 read_pages+0x160/0x694 mm/readahead.c:160 page_cache_ra_unbounded+0x484/0x584 mm/readahead.c:273 do_page_cache_ra mm/readahead.c:303 [inline] force_page_cache_ra+0x22c/0x290 mm/readahead.c:332 force_page_cache_readahead mm/internal.h:338 [inline] generic_fadvise+0x3e8/0x6a0 mm/fadvise.c:106 vfs_fadvise mm/fadvise.c:185 [inline] ksys_fadvise64_64 mm/fadvise.c:199 [inline] __do_sys_fadvise64_64 mm/fadvise.c:207 [inline] __se_sys_fadvise64_64 mm/fadvise.c:205 [inline] __arm64_sys_fadvise64_64+0x12c/0x174 mm/fadvise.c:205 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Showing all locks held in the system: 3 locks held by kworker/1:0/25: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3205 #1: ffff800094507c20 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3205 #2: ffff80009267d6e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_global_led_trigger_worker+0x30/0xe4 net/rfkill/core.c:182 1 lock held by khungtaskd/31: #0: ffff80008f6edba0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:325 4 locks held by kworker/1:2/2255: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3205 #1: ffff80009d157c20 ((rfkill_op_work).work){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3205 #2: ffff80009267d6e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_epo+0x58/0x158 net/rfkill/core.c:462 #3: ffff0000eb670100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #3: ffff0000eb670100 (&dev->mutex){....}-{3:3}, at: nfc_dev_down net/nfc/core.c:143 [inline] #3: ffff0000eb670100 (&dev->mutex){....}-{3:3}, at: nfc_rfkill_set_block+0x50/0x2d0 net/nfc/core.c:179 2 locks held by getty/6154: #0: ffff0000d2d4b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009839b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211 1 lock held by syz.1.220/7185: #0: ffff0000df100330 (mapping.invalidate_lock#7){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:854 [inline] #0: ffff0000df100330 (mapping.invalidate_lock#7){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xc8/0x584 mm/readahead.c:225 4 locks held by kworker/u8:16/7622: #0: ffff0000c1869948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3205 #1: ffff8000a0c57c20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3205 #2: ffff8000923aa750 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x13c/0x9b4 net/core/net_namespace.c:594 #3: ffff80009267d6e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xb8/0x210 net/rfkill/core.c:1149 2 locks held by syz-executor/8009: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 #1: ffff80009267d6e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_open+0x12c/0x778 net/rfkill/core.c:1182 2 locks held by syz.1.437/8036: #0: ffff0000eb670100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #0: ffff0000eb670100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x6c/0x290 net/nfc/core.c:1165 #1: ffff80009267d6e8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xb8/0x210 net/rfkill/core.c:1149 1 lock held by syz.4.462/8227: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz.3.471/8230: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz.0.497/8302: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8305: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8307: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8309: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8311: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8316: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8318: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8320: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8322: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8324: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8327: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8331: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8335: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8337: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 1 lock held by syz-executor/8339: #0: ffff800090e8ab48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x6c/0x368 drivers/char/misc.c:129 =============================================