INFO: task syz-executor.4:22216 blocked for more than 143 seconds. Not tainted 6.4.0-rc5-syzkaller-gd8b213732169 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:0 pid:22216 ppid:6012 flags:0x00000009 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5343 [inline] __schedule+0x1368/0x23b8 kernel/sched/core.c:6669 schedule+0xc4/0x170 kernel/sched/core.c:6745 io_schedule+0x8c/0x12c kernel/sched/core.c:8979 __lock_metapage+0x1cc/0x458 fs/jfs/jfs_metapage.c:50 lock_metapage fs/jfs/jfs_metapage.c:64 [inline] __get_metapage+0x96c/0x1050 fs/jfs/jfs_metapage.c:639 diIAGRead fs/jfs/jfs_imap.c:2662 [inline] diNewExt+0x1b98/0x2b44 fs/jfs/jfs_imap.c:2230 diAllocExt fs/jfs/jfs_imap.c:1945 [inline] diAllocAG+0xa68/0x1b8c fs/jfs/jfs_imap.c:1662 diAlloc+0x360/0x1530 fs/jfs/jfs_imap.c:1583 ialloc+0x84/0x7c0 fs/jfs/jfs_inode.c:56 jfs_mkdir+0x190/0xa0c fs/jfs/namei.c:225 vfs_mkdir+0x240/0x3a8 fs/namei.c:4115 do_mkdirat+0x20c/0x610 fs/namei.c:4138 __do_sys_mkdirat fs/namei.c:4153 [inline] __se_sys_mkdirat fs/namei.c:4151 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4151 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 INFO: task syz-executor.4:22223 blocked for more than 143 seconds. Not tainted 6.4.0-rc5-syzkaller-gd8b213732169 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:0 pid:22223 ppid:6012 flags:0x00000001 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5343 [inline] __schedule+0x1368/0x23b8 kernel/sched/core.c:6669 schedule+0xc4/0x170 kernel/sched/core.c:6745 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6804 rwsem_down_read_slowpath+0x57c/0xe58 kernel/locking/rwsem.c:1086 __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0xa0/0x2fc kernel/locking/rwsem.c:1522 inode_lock_shared include/linux/fs.h:785 [inline] lookup_slow+0x50/0x84 fs/namei.c:1706 walk_component+0x280/0x36c fs/namei.c:1998 lookup_last fs/namei.c:2455 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2479 filename_lookup+0x1d4/0x4e0 fs/namei.c:2508 user_path_at_empty+0x5c/0x1a4 fs/namei.c:2907 user_path_at include/linux/namei.h:57 [inline] path_setxattr+0xbc/0x258 fs/xattr.c:667 __do_sys_setxattr fs/xattr.c:688 [inline] __se_sys_setxattr fs/xattr.c:684 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:684 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffff80008e0916d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:518 1 lock held by rcu_tasks_trace/14: #0: ffff80008e091a90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:518 1 lock held by khungtaskd/28: #0: ffff80008e091500 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:326 2 locks held by getty/5727: #0: ffff0000d4e54098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800092e202f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2176 4 locks held by syz-executor.4/22216: #0: ffff000146cf2460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:394 #1: ffff0001313e4f80 (&type->i_mutex_dir_key#13/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:810 [inline] #1: ffff0001313e4f80 (&type->i_mutex_dir_key#13/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3884 #2: ffff000130900920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diAlloc+0x168/0x1530 fs/jfs/jfs_imap.c:1343 #3: ffff0001313e2f78 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diAllocExt fs/jfs/jfs_imap.c:1910 [inline] #3: ffff0001313e2f78 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diAllocAG+0x25c/0x1b8c fs/jfs/jfs_imap.c:1662 1 lock held by syz-executor.4/22223: #0: ffff0001313e4f80 (&type->i_mutex_dir_key#13){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:785 [inline] #0: ffff0001313e4f80 (&type->i_mutex_dir_key#13){++++}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1706 =============================================