INFO: task syz-executor.4:7735 blocked for more than 143 seconds. Not tainted 6.7.0-rc8-syzkaller-g0802e17d9aca #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:0 pid:7735 tgid:7735 ppid:6149 flags:0x00000005 Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5376 [inline] __schedule+0x1354/0x2360 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0xb8/0x19c kernel/sched/core.c:6778 xlog_grant_head_wait+0x390/0xa84 fs/xfs/xfs_log.c:307 xlog_grant_head_check+0x218/0x3d8 xfs_log_reserve+0x388/0xbcc fs/xfs/xfs_log.c:486 xfs_trans_reserve+0x1f4/0x5e0 fs/xfs/xfs_trans.c:195 xfs_trans_alloc+0x424/0x938 fs/xfs/xfs_trans.c:284 xfs_free_eofblocks+0xf8/0x280 fs/xfs/xfs_bmap_util.c:731 xfs_release+0x1cc/0x364 fs/xfs/xfs_inode.c:1479 xfs_file_release+0x20/0x30 fs/xfs/xfs_file.c:1267 __fput+0x308/0x8e4 fs/file_table.c:394 __fput_sync+0x60/0x9c fs/file_table.c:475 __do_sys_close fs/open.c:1587 [inline] __se_sys_close fs/open.c:1572 [inline] __arm64_sys_close+0x150/0x1e0 fs/open.c:1572 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 INFO: task syz-executor.4:7871 blocked for more than 143 seconds. Not tainted 6.7.0-rc8-syzkaller-g0802e17d9aca #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:0 pid:7871 tgid:7735 ppid:6149 flags:0x00000005 Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5376 [inline] __schedule+0x1354/0x2360 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0xb8/0x19c kernel/sched/core.c:6778 xlog_grant_head_wait+0x390/0xa84 fs/xfs/xfs_log.c:307 xlog_grant_head_check+0x218/0x3d8 xfs_log_reserve+0x388/0xbcc fs/xfs/xfs_log.c:486 xfs_trans_reserve+0x1f4/0x5e0 fs/xfs/xfs_trans.c:195 xfs_trans_alloc+0x424/0x938 fs/xfs/xfs_trans.c:284 xfs_trans_alloc_inode+0x170/0x4f4 fs/xfs/xfs_trans.c:1203 xfs_attr_set+0x8e8/0x13d0 fs/xfs/libxfs/xfs_attr.c:1024 xfs_attr_change fs/xfs/xfs_xattr.c:117 [inline] xfs_xattr_set+0x1a8/0x30c fs/xfs/xfs_xattr.c:162 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:201 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:235 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:296 vfs_setxattr+0x1a8/0x344 fs/xattr.c:322 do_setxattr fs/xattr.c:630 [inline] setxattr+0x208/0x29c fs/xattr.c:653 path_setxattr+0x17c/0x258 fs/xattr.c:672 __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:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 Showing all locks held in the system: 2 locks held by kworker/0:0/8: #0: ffff0000ca9f0d38 ((wq_completion)xfs-sync/loop3){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2600 #1: ffff800092f77c20 ((work_completion)(&(&log->l_work)->work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2602 1 lock held by khungtaskd/29: #0: ffff80008e6c48c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:300 4 locks held by kworker/u4:3/41: #0: ffff0000c1c3a138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2600 #1: ffff8000943f7c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2602 #2: ffff0000cc2880e0 (&type->s_umount_key#57){++++}-{3:3}, at: super_trylock_shared+0x28/0xe4 fs/super.c:610 #3: ffff0000cc288608 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x21c/0x10e8 fs/xfs/libxfs/xfs_bmap.c:4527 4 locks held by kworker/u4:7/480: #0: ffff0000c1c3a138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2600 #1: ffff800097a77c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2602 #2: ffff0001336bc0e0 (&type->s_umount_key#57){++++}-{3:3}, at: super_trylock_shared+0x28/0xe4 fs/super.c:610 #3: ffff0001336bc608 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x21c/0x10e8 fs/xfs/libxfs/xfs_bmap.c:4527 2 locks held by kworker/1:3/5843: #0: ffff0000dba9e138 ((wq_completion)xfs-sync/loop4){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2600 #1: ffff800096de7c20 ((work_completion)(&(&log->l_work)->work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2602 2 locks held by getty/5861: #0: ffff0000d22650a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800094e402f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201 3 locks held by kworker/u5:7/6150: #0: ffff0000d0c6a138 ((wq_completion)hci6){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2600 #1: ffff8000970a7c20 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2602 #2: ffff0000d8ad1108 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x194/0x34c net/bluetooth/hci_sync.c:305 3 locks held by kworker/1:4/6203: #0: ffff0000c0020d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2600 #1: ffff8000973e7c20 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2602 #2: ffff000125a2d240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x270/0x32bc drivers/net/netdevsim/fib.c:1489 2 locks held by syz-executor.4/7735: #0: ffff00012c8dc8f8 (&sb->s_type->i_mutex_key#21){++++}-{3:3}, at: xfs_ilock_nowait+0x11c/0x55c fs/xfs/xfs_inode.c:238 #1: ffff0000cc288608 (sb_internal#2){.+.+}-{0:0}, at: xfs_free_eofblocks+0xf8/0x280 fs/xfs/xfs_bmap_util.c:731 3 locks held by syz-executor.4/7871: #0: ffff0000cc288418 (sb_writers#14){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:404 #1: ffff00012ab2f778 (&inode->i_sb->s_type->i_mutex_dir_key#2){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline] #1: ffff00012ab2f778 (&inode->i_sb->s_type->i_mutex_dir_key#2){++++}-{3:3}, at: vfs_setxattr+0x17c/0x344 fs/xattr.c:321 #2: ffff0000cc288608 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x170/0x4f4 fs/xfs/xfs_trans.c:1203 2 locks held by syz-executor.3/8879: #0: ffff00012ab2d0b8 (&sb->s_type->i_mutex_key#21){++++}-{3:3}, at: xfs_ilock_nowait+0x11c/0x55c fs/xfs/xfs_inode.c:238 #1: ffff0001336bc608 (sb_internal#2){.+.+}-{0:0}, at: xfs_free_eofblocks+0xf8/0x280 fs/xfs/xfs_bmap_util.c:731 3 locks held by syz-executor.3/8925: #0: ffff0001336bc418 (sb_writers#14){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:404 #1: ffff00012ab2c8f8 (&inode->i_sb->s_type->i_mutex_dir_key#2){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline] #1: ffff00012ab2c8f8 (&inode->i_sb->s_type->i_mutex_dir_key#2){++++}-{3:3}, at: vfs_setxattr+0x17c/0x344 fs/xattr.c:321 #2: ffff0001336bc608 (sb_internal#2){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x170/0x4f4 fs/xfs/xfs_trans.c:1203 =============================================