INFO: task syz-executor.3:6874 blocked for more than 143 seconds. Not tainted 6.3.0-rc7-syzkaller-g14f8db1c0f9a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:0 pid:6874 ppid:6038 flags:0x00000001 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5307 [inline] __schedule+0x103c/0x1e2c kernel/sched/core.c:6625 schedule+0xc4/0x170 kernel/sched/core.c:6701 io_schedule+0x8c/0x120 kernel/sched/core.c:8887 __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:4038 do_mkdirat+0x20c/0x610 fs/namei.c:4061 __do_sys_mkdirat fs/namei.c:4076 [inline] __se_sys_mkdirat fs/namei.c:4074 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4074 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x4c/0x15c arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 INFO: task syz-executor.3:6876 blocked for more than 143 seconds. Not tainted 6.3.0-rc7-syzkaller-g14f8db1c0f9a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:0 pid:6876 ppid:6038 flags:0x00000001 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5307 [inline] __schedule+0x103c/0x1e2c kernel/sched/core.c:6625 schedule+0xc4/0x170 kernel/sched/core.c:6701 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6760 rwsem_down_read_slowpath+0x57c/0xe58 kernel/locking/rwsem.c:1086 __down_read_common+0x68/0x2d8 kernel/locking/rwsem.c:1250 __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x5c/0x6c kernel/locking/rwsem.c:1522 inode_lock_shared include/linux/fs.h:768 [inline] lookup_slow+0x50/0x84 fs/namei.c:1702 walk_component+0x280/0x36c fs/namei.c:1994 lookup_last fs/namei.c:2451 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2475 filename_lookup+0x1d4/0x4e0 fs/namei.c:2504 user_path_at_empty+0x5c/0x1a4 fs/namei.c:2877 user_path_at include/linux/namei.h:57 [inline] do_utimes_path fs/utimes.c:95 [inline] do_utimes+0x118/0x264 fs/utimes.c:145 __do_sys_utimensat fs/utimes.c:164 [inline] __se_sys_utimensat fs/utimes.c:148 [inline] __arm64_sys_utimensat+0x144/0x238 fs/utimes.c:148 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x4c/0x15c arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 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/12: #0: ffff800015e4f0d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:510 1 lock held by rcu_tasks_trace/13: #0: ffff800015e4f8d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:510 1 lock held by khungtaskd/28: #0: ffff800015e4ef00 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:326 1 lock held by udevd/5519: 2 locks held by getty/5671: #0: ffff0000d87c0098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001aad02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2177 1 lock held by syz-executor.2/6035: 4 locks held by kworker/u4:20/6687: 2 locks held by kworker/u4:22/6689: 4 locks held by syz-executor.3/6874: #0: ffff00012f3fa460 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:394 #1: ffff0001327c33c0 (&type->i_mutex_dir_key#10/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline] #1: ffff0001327c33c0 (&type->i_mutex_dir_key#10/1){+.+.}-{3:3}, at: filename_create+0x200/0x464 fs/namei.c:3808 #2: ffff000137960920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diAlloc+0x168/0x1530 fs/jfs/jfs_imap.c:1343 #3: ffff0001327c2638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diAllocExt fs/jfs/jfs_imap.c:1910 [inline] #3: ffff0001327c2638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diAllocAG+0x25c/0x1b8c fs/jfs/jfs_imap.c:1662 1 lock held by syz-executor.3/6876: #0: ffff0001327c33c0 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] #0: ffff0001327c33c0 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1702 4 locks held by syz-executor.4/6979: #0: ffff0000cf030460 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:394 #1: ffff00013544b3c0 (&type->i_mutex_dir_key#10/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline] #1: ffff00013544b3c0 (&type->i_mutex_dir_key#10/1){+.+.}-{3:3}, at: filename_create+0x200/0x464 fs/namei.c:3808 #2: ffff00012f4c0920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diAlloc+0x168/0x1530 fs/jfs/jfs_imap.c:1343 #3: ffff00013544a638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diAllocExt fs/jfs/jfs_imap.c:1910 [inline] #3: ffff00013544a638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diAllocAG+0x25c/0x1b8c fs/jfs/jfs_imap.c:1662 1 lock held by syz-executor.4/7010: #0: ffff00013544b3c0 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] #0: ffff00013544b3c0 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1702 2 locks held by syz-executor.1/9165: 2 locks held by syz-executor.3/9175: 2 locks held by syz-executor.0/9184: =============================================