INFO: task syz.2.684:9524 blocked for more than 143 seconds. Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.684 state:D stack:0 pid:9524 tgid:9523 ppid:9131 flags:0x00000009 Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5408 [inline] __schedule+0x14ac/0x24d8 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6837 io_schedule+0x8c/0x124 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:1060 [inline] z_erofs_fill_bio_vec fs/erofs/zdata.c:1460 [inline] z_erofs_submit_queue fs/erofs/zdata.c:1641 [inline] z_erofs_runqueue+0x80c/0x17a4 fs/erofs/zdata.c:1723 z_erofs_readahead+0x858/0xc18 fs/erofs/zdata.c:1855 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+0x240/0x2a8 mm/readahead.c:334 force_page_cache_readahead mm/internal.h:321 [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:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150 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: 1 lock held by khungtaskd/31: #0: ffff80008f2d7a60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328 4 locks held by kworker/u8:8/2065: #0: ffff0000c1819948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff80009c757c20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff800091f026d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x13c/0x9b4 net/core/net_namespace.c:594 #3: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 3 locks held by kworker/u8:11/2137: #0: ffff0000d1d26948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff80009cc87c20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 2 locks held by getty/6050: #0: ffff0000c302b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800097eeb2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211 3 locks held by kworker/1:7/7172: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff80009bd97c20 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 3 locks held by kworker/0:8/8647: #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff80009b8f7c20 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff0000d426c240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x270/0x32bc drivers/net/netdevsim/fib.c:1489 1 lock held by syz.2.684/9524: #0: ffff0000e85b8338 (mapping.invalidate_lock#6){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:846 [inline] #0: ffff0000e85b8338 (mapping.invalidate_lock#6){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xc8/0x584 mm/readahead.c:225 1 lock held by syz-executor/10808: #0: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x704/0xe64 net/core/rtnetlink.c:6632 1 lock held by syz.4.954/10995: #0: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 1 lock held by syz.3.958/11015: #0: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 2 locks held by syz.2.960/11013: #0: ffff0000e857d010 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline] #0: ffff0000e857d010 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release net/socket.c:658 [inline] #0: ffff0000e857d010 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: sock_close+0x80/0x1e8 net/socket.c:1421 #1: ffff0000e8c8a160 (&net->packet.sklist_lock){+.+.}-{3:3}, at: packet_release+0xdc/0xca8 net/packet/af_packet.c:3134 3 locks held by syz.2.960/11016: #0: ffff0000d9e0b678 (nlk_cb_mutex-SOCK_DIAG){+.+.}-{3:3}, at: __netlink_dump_start+0xf8/0x71c net/netlink/af_netlink.c:2418 #1: ffff0000e8c8a160 (&net->packet.sklist_lock){+.+.}-{3:3}, at: packet_diag_dump+0x174/0x1adc net/packet/diag.c:200 #2: ffff800091f0e928 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79 =============================================