INFO: task syz-executor.2:8099 blocked for more than 144 seconds. Tainted: G W 6.10.0-rc2-syzkaller-g8867bbd4a056 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:0 pid:8099 tgid:8098 ppid:6492 flags:0x0000000d Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5408 [inline] __schedule+0x14b8/0x24e8 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6837 __bch2_two_state_lock+0x198/0x20c fs/bcachefs/two_state_shared_lock.c:7 bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:56 [inline] bch2_readahead+0x840/0xeb8 fs/bcachefs/fs-io-buffered.c:269 read_pages+0x160/0x694 mm/readahead.c:160 page_cache_ra_order+0x674/0x990 mm/readahead.c:535 ondemand_readahead+0x600/0xaf4 mm/readahead.c:669 page_cache_sync_ra+0x130/0x180 mm/readahead.c:696 page_cache_sync_readahead include/linux/pagemap.h:1302 [inline] filemap_get_pages+0x368/0x1630 mm/filemap.c:2529 filemap_splice_read+0x4c4/0xc50 mm/filemap.c:2894 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x38c/0xa0c fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x1e4/0x304 fs/splice.c:1233 do_sendfile+0x468/0xbb8 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64 fs/read_write.c:1348 [inline] __arm64_sys_sendfile64+0x160/0x3b4 fs/read_write.c:1348 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 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 INFO: task syz-executor.2:8123 blocked for more than 144 seconds. Tainted: G W 6.10.0-rc2-syzkaller-g8867bbd4a056 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:0 pid:8123 tgid:8098 ppid:6492 flags:0x0000000d Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5408 [inline] __schedule+0x14b8/0x24e8 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6837 io_schedule+0x8c/0x12c kernel/sched/core.c:9043 folio_wait_bit_common+0x65c/0xb90 mm/filemap.c:1307 __folio_lock+0x2c/0x3c mm/filemap.c:1645 folio_lock include/linux/pagemap.h:1056 [inline] invalidate_inode_pages2_range+0x55c/0x130c mm/truncate.c:648 bch2_write_invalidate_inode_pages_range+0xc4/0x120 fs/bcachefs/fs-io-pagecache.c:68 bch2_direct_write+0x269c/0x2988 fs/bcachefs/fs-io-direct.c:647 bch2_write_iter+0x1a8/0x2d24 fs/bcachefs/fs-io-buffered.c:1135 iter_file_splice_write+0x894/0xfc0 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0xec/0x1d8 fs/splice.c:1164 splice_direct_to_actor+0x438/0xa0c fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x1e4/0x304 fs/splice.c:1233 do_sendfile+0x468/0xbb8 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64 fs/read_write.c:1348 [inline] __arm64_sys_sendfile64+0x160/0x3b4 fs/read_write.c:1348 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 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: 4 locks held by kworker/u8:1/13: 1 lock held by khungtaskd/31: #0: ffff80008f1c76a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328 2 locks held by getty/6025: #0: ffff0000d71fa0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800097d7b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201 6 locks held by syz-fuzzer/6259: 2 locks held by kworker/0:5/6342: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x62c/0x15e8 kernel/workqueue.c:3205 #1: ffff800099fe7c20 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x6a8/0x15e8 kernel/workqueue.c:3205 3 locks held by kworker/0:6/6343: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x62c/0x15e8 kernel/workqueue.c:3205 #1: ffff800099fd7c20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x6a8/0x15e8 kernel/workqueue.c:3205 #2: ffff800091da56a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 1 lock held by syz-executor.2/8099: #0: ffff0000dee691c0 (mapping.invalidate_lock#7){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:846 [inline] #0: ffff0000dee691c0 (mapping.invalidate_lock#7){.+.+}-{3:3}, at: page_cache_ra_order+0x20c/0x990 mm/readahead.c:514