INFO: task syz-executor.4:7830 blocked for more than 143 seconds. Not tainted 6.9.0-rc3-syzkaller-gb5d2afe8745b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:0 pid:7830 tgid:7827 ppid:6270 flags:0x0000000d Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5409 [inline] __schedule+0x14bc/0x24ec kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6838 request_wait_answer fs/fuse/dev.c:407 [inline] __fuse_request_send fs/fuse/dev.c:426 [inline] fuse_simple_request+0xea8/0x17b0 fs/fuse/dev.c:513 fuse_do_setattr+0xe64/0x1ac4 fs/fuse/dir.c:1972 fuse_setattr+0x400/0x938 fs/fuse/dir.c:2085 notify_change+0x9d4/0xc84 fs/attr.c:497 vfs_utimes+0x418/0x674 fs/utimes.c:66 do_utimes_path fs/utimes.c:99 [inline] do_utimes+0x18c/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: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.4:7832 blocked for more than 143 seconds. Not tainted 6.9.0-rc3-syzkaller-gb5d2afe8745b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:0 pid:7832 tgid:7827 ppid:6270 flags:0x00000005 Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5409 [inline] __schedule+0x14bc/0x24ec kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6838 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6895 rwsem_down_write_slowpath+0xd10/0x14c8 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0xb4/0xc0 kernel/locking/rwsem.c:1580 inode_lock include/linux/fs.h:795 [inline] vfs_utimes+0x3c4/0x674 fs/utimes.c:65 do_utimes_path fs/utimes.c:99 [inline] do_utimes+0x18c/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: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: 1 lock held by khungtaskd/30: #0: ffff80008f057880 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328 2 locks held by jfsCommit/96: #0: ffff0000d5a50920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x2cc/0x2648 fs/jfs/jfs_imap.c:886 #1: ffff0000db742f78 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x2e0/0x2648 fs/jfs/jfs_imap.c:891 2 locks held by syslogd/5842: #0: ffff0001b3de2c98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:559 [inline] #0: ffff0001b3de2c98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1385 [inline] #0: ffff0001b3de2c98 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1699 [inline] #0: ffff0001b3de2c98 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2e0/0x24ec kernel/sched/core.c:6654 #1: ffff0001b3dccc88 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3c0/0x618 kernel/sched/psi.c:988 2 locks held by getty/6003: #0: ffff0000d6f780a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800097b9b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201 1 lock held by syz-executor.0/7200: #0: ffff0000cfec40e0 (&type->s_umount_key#54){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff0000cfec40e0 (&type->s_umount_key#54){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff0000cfec40e0 (&type->s_umount_key#54){++++}-{3:3}, at: deactivate_super+0xd8/0x100 fs/super.c:504 2 locks held by syz-executor.4/7830: #0: ffff0000f5022420 (sb_writers#27){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000db660150 (&type->i_mutex_dir_key#15){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline] #1: ffff0000db660150 (&type->i_mutex_dir_key#15){++++}-{3:3}, at: vfs_utimes+0x3c4/0x674 fs/utimes.c:65 2 locks held by syz-executor.4/7832: #0: ffff0000f5022420 (sb_writers#27){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:409 #1: ffff0000db660150 (&type->i_mutex_dir_key#15){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline] #1: ffff0000db660150 (&type->i_mutex_dir_key#15){++++}-{3:3}, at: vfs_utimes+0x3c4/0x674 fs/utimes.c:65 1 lock held by syz-executor.0/10119: #0: ffff0000cfec40e0 (&type->s_umount_key#54){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff0000cfec40e0 (&type->s_umount_key#54){++++}-{3:3}, at: super_lock+0x208/0x33c fs/super.c:120 1 lock held by syz-executor.0/10617: #0: ffff0000cfec40e0 (&type->s_umount_key#54){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff0000cfec40e0 (&type->s_umount_key#54){++++}-{3:3}, at: super_lock+0x244/0x33c fs/super.c:120 =============================================