INFO: task syz.2.99:4587 blocked for more than 145 seconds. Not tainted 5.15.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.99 state:D stack: 0 pid: 4587 ppid: 4033 flags:0x00000009 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5027 [inline] __schedule+0xf10/0x1e48 kernel/sched/core.c:6373 schedule+0x11c/0x1c8 kernel/sched/core.c:6456 xlog_grant_head_wait+0x390/0xa88 fs/xfs/xfs_log.c:256 xlog_grant_head_check+0x218/0x3d8 xfs_log_reserve+0x384/0xc1c fs/xfs/xfs_log.c:464 xfs_trans_reserve+0x1e8/0x5a4 fs/xfs/xfs_trans.c:197 xfs_trans_alloc+0x4c4/0xaa4 fs/xfs/xfs_trans.c:288 xfs_trans_alloc_inode+0x114/0x404 fs/xfs/xfs_trans.c:1047 xfs_attr_set+0x73c/0x11e0 fs/xfs/libxfs/xfs_attr.c:772 xfs_xattr_set+0x1a8/0x30c fs/xfs/xfs_xattr.c:59 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x1a8/0x344 fs/xattr.c:303 do_setxattr fs/xattr.c:588 [inline] setxattr+0x250/0x2b4 fs/xattr.c:611 path_setxattr+0x17c/0x258 fs/xattr.c:630 __do_sys_lsetxattr fs/xattr.c:653 [inline] __se_sys_lsetxattr fs/xattr.c:649 [inline] __arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:649 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffff800014c822e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311 2 locks held by getty/3777: #0: ffff0000d4d78098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001d62d2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204 drivers/tty/n_tty.c:2158 1 lock held by syz-executor/4016: 2 locks held by kworker/0:3/4018: #0: ffff0000e4e43938 ((wq_completion)xfs-sync/loop2){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff800020257c00 ((work_completion)(&(&log->l_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 2 locks held by kworker/0:4/4019: #0: ffff0000c0021938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff800020247c00 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 1 lock held by udevd/4020: 1 lock held by syz-executor/4036: #0: ffff800014c868e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #0: ffff800014c868e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2f0/0x660 kernel/rcu/tree_exp.h:845 2 locks held by kworker/1:10/4189: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff800020d57c00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 2 locks held by kworker/1:11/4190: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff800020877c00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 3 locks held by syz.2.99/4587: #0: ffff0000d97a0460 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0000e6ecce00 (&sb->s_type->i_mutex_key#21){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] #1: ffff0000e6ecce00 (&sb->s_type->i_mutex_key#21){++++}-{3:3}, at: vfs_setxattr+0x17c/0x344 fs/xattr.c:302 #2: ffff0000d97a0650 (sb_internal#3){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x114/0x404 fs/xfs/xfs_trans.c:1047 2 locks held by kworker/0:9/4637: #0: ffff0000e684f938 ((wq_completion)xfs-sync/loop3){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff800020837c00 ((work_completion)(&(&log->l_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 3 locks held by syz.3.167/4890: #0: ffff0000c947a460 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0000e6f78a80 (&sb->s_type->i_mutex_key#21){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] #1: ffff0000e6f78a80 (&sb->s_type->i_mutex_key#21){++++}-{3:3}, at: vfs_setxattr+0x17c/0x344 fs/xattr.c:302 #2: ffff0000c947a650 (sb_internal#3){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x114/0x404 fs/xfs/xfs_trans.c:1047 1 lock held by syz-executor/5147: #0: ffff800014c868e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #0: ffff800014c868e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x320/0x660 kernel/rcu/tree_exp.h:845 5 locks held by syz.4.570/6517: 1 lock held by syz.1.568/6523: #0: ffff0000d2741258 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:87 [inline] #0: ffff0000d2741258 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x15c/0x2b4 mm/util.c:549 1 lock held by syz.1.568/6524: =============================================