INFO: task syz-executor.4:5756 blocked for more than 143 seconds. Not tainted 5.15.155-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack: 0 pid: 5756 ppid: 3983 flags:0x00000005 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5030 [inline] __schedule+0xf10/0x1e48 kernel/sched/core.c:6376 schedule+0x11c/0x1c8 kernel/sched/core.c:6459 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 INFO: task syz-executor.4:5767 blocked for more than 143 seconds. Not tainted 5.15.155-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack: 0 pid: 5767 ppid: 3983 flags:0x00000005 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5030 [inline] __schedule+0xf10/0x1e48 kernel/sched/core.c:6376 schedule+0x11c/0x1c8 kernel/sched/core.c:6459 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_icreate+0xc8/0x290 fs/xfs/xfs_trans.c:1102 xfs_create+0x578/0xfec fs/xfs/xfs_inode.c:1018 xfs_generic_create+0x390/0xb10 fs/xfs/xfs_iops.c:197 xfs_vn_create+0x44/0x58 fs/xfs/xfs_iops.c:275 lookup_open fs/namei.c:3462 [inline] open_last_lookups fs/namei.c:3532 [inline] path_openat+0xf18/0x26cc fs/namei.c:3739 do_filp_open+0x1a8/0x3b4 fs/namei.c:3769 do_sys_openat2+0x128/0x3d8 fs/open.c:1253 do_sys_open fs/open.c:1269 [inline] __do_sys_openat fs/open.c:1285 [inline] __se_sys_openat fs/open.c:1280 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1280 __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: ffff800014b114e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311 2 locks held by getty/3724: #0: ffff0000d28ed098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001a30e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204 drivers/tty/n_tty.c:2158 5 locks held by kworker/1:6/4025: #0: ffff0000c26e7938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff80001d087c00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 #2: ffff0000cec0f220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #2: ffff0000cec0f220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b8/0x46b8 drivers/usb/core/hub.c:5768 #3: ffff0000d8654220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #3: ffff0000d8654220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x90/0x480 drivers/base/dd.c:954 #4: ffff0000e38551a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #4: ffff0000e38551a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x90/0x480 drivers/base/dd.c:954 3 locks held by syz-executor.4/5756: #0: ffff0000eb37e460 (sb_writers#21){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0000e93e1980 (&inode->i_sb->s_type->i_mutex_dir_key#4){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] #1: ffff0000e93e1980 (&inode->i_sb->s_type->i_mutex_dir_key#4){++++}-{3:3}, at: vfs_setxattr+0x17c/0x344 fs/xattr.c:302 #2: ffff0000eb37e650 (sb_internal#3){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x114/0x404 fs/xfs/xfs_trans.c:1047 3 locks held by syz-executor.4/5767: #0: ffff0000eb37e460 (sb_writers#21){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0000e93e3000 (&inode->i_sb->s_type->i_mutex_dir_key#4){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] #1: ffff0000e93e3000 (&inode->i_sb->s_type->i_mutex_dir_key#4){++++}-{3:3}, at: open_last_lookups fs/namei.c:3529 [inline] #1: ffff0000e93e3000 (&inode->i_sb->s_type->i_mutex_dir_key#4){++++}-{3:3}, at: path_openat+0x640/0x26cc fs/namei.c:3739 #2: ffff0000eb37e650 (sb_internal#3){.+.+}-{0:0}, at: xfs_trans_alloc_icreate+0xc8/0x290 fs/xfs/xfs_trans.c:1102 3 locks held by syz-executor.0/5902: #0: ffff0000c1334460 (sb_writers#21){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0000e93e1200 (&inode->i_sb->s_type->i_mutex_dir_key#4){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] #1: ffff0000e93e1200 (&inode->i_sb->s_type->i_mutex_dir_key#4){++++}-{3:3}, at: vfs_setxattr+0x17c/0x344 fs/xattr.c:302 #2: ffff0000c1334650 (sb_internal#3){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x114/0x404 fs/xfs/xfs_trans.c:1047 3 locks held by syz-executor.0/5968: #0: ffff0000c1334460 (sb_writers#21){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 #1: ffff0000eb4e1980 (&inode->i_sb->s_type->i_mutex_dir_key#4){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] #1: ffff0000eb4e1980 (&inode->i_sb->s_type->i_mutex_dir_key#4){++++}-{3:3}, at: open_last_lookups fs/namei.c:3529 [inline] #1: ffff0000eb4e1980 (&inode->i_sb->s_type->i_mutex_dir_key#4){++++}-{3:3}, at: path_openat+0x640/0x26cc fs/namei.c:3739 #2: ffff0000c1334650 (sb_internal#3){.+.+}-{0:0}, at: xfs_trans_alloc_icreate+0xc8/0x290 fs/xfs/xfs_trans.c:1102 3 locks held by kworker/u4:9/7805: 1 lock held by syz-executor.3/9031: =============================================