INFO: task syz.1.275:4551 blocked for more than 143 seconds.
      Not tainted 5.15.164-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.275       state:D stack:23584 pid: 4551 ppid:  3571 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 xlog_grant_head_wait+0x381/0x900 fs/xfs/xfs_log.c:256
 xlog_grant_head_check+0x295/0x480
 xfs_log_reserve+0x3b8/0xb10 fs/xfs/xfs_log.c:464
 xfs_trans_reserve+0x23d/0x690 fs/xfs/xfs_trans.c:197
 xfs_trans_alloc+0x420/0x7f0 fs/xfs/xfs_trans.c:288
 xfs_trans_alloc_inode+0x129/0x450 fs/xfs/xfs_trans.c:1047
 xfs_attr_set+0x848/0x1460 fs/xfs/libxfs/xfs_attr.c:772
 xfs_xattr_set+0x227/0x3a0 fs/xfs/xfs_xattr.c:59
 __vfs_setxattr+0x3e7/0x420 fs/xattr.c:182
 __vfs_setxattr_noperm+0x12a/0x5e0 fs/xattr.c:216
 vfs_setxattr+0x21d/0x420 fs/xattr.c:303
 do_setxattr fs/xattr.c:588 [inline]
 setxattr+0x27e/0x2e0 fs/xattr.c:611
 path_setxattr+0x1bc/0x2a0 fs/xattr.c:630
 __do_sys_setxattr fs/xattr.c:646 [inline]
 __se_sys_setxattr fs/xattr.c:642 [inline]
 __x64_sys_setxattr+0xb7/0xd0 fs/xattr.c:642
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f6981088e79
RSP: 002b:00007f697f505038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f6981224f80 RCX: 00007f6981088e79
RDX: 0000000020000180 RSI: 0000000020000140 RDI: 0000000020000100
RBP: 00007f69810f6916 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000e00f R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6981224f80 R15: 00007fffee52cc38
 </TASK>
INFO: task syz.1.275:4595 blocked for more than 143 seconds.
      Not tainted 5.15.164-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.275       state:D stack:27008 pid: 4595 ppid:  3571 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 xlog_grant_head_wait+0x381/0x900 fs/xfs/xfs_log.c:256
 xlog_grant_head_check+0x295/0x480
 xfs_log_reserve+0x3b8/0xb10 fs/xfs/xfs_log.c:464
 xfs_trans_reserve+0x23d/0x690 fs/xfs/xfs_trans.c:197
 xfs_trans_alloc+0x420/0x7f0 fs/xfs/xfs_trans.c:288
 xfs_trans_alloc_ichange+0xf9/0x640 fs/xfs/xfs_trans.c:1149
 xfs_setattr_nonsize+0x38e/0xc40 fs/xfs/xfs_iops.c:694
 xfs_vn_setattr+0x2f7/0x340 fs/xfs/xfs_iops.c:1029
 notify_change+0xc6d/0xf50 fs/attr.c:505
 vfs_utimes+0x4b1/0x760 fs/utimes.c:65
 do_utimes_path fs/utimes.c:98 [inline]
 do_utimes+0x1a4/0x270 fs/utimes.c:144
 __do_sys_utimensat fs/utimes.c:163 [inline]
 __se_sys_utimensat fs/utimes.c:147 [inline]
 __x64_sys_utimensat+0x14b/0x250 fs/utimes.c:147
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f6981088e79
RSP: 002b:00007f697f4e4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000118
RAX: ffffffffffffffda RBX: 00007f6981225058 RCX: 00007f6981088e79
RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 00007f69810f6916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f6981225058 R15: 00007fffee52cc38
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8c91fb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/1:2/1075:
 #0: ffff888062be5938 ((wq_completion)xfs-sync/loop1){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
 #1: ffffc90004df7d20 ((work_completion)(&(&log->l_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
2 locks held by getty/3328:
 #0: ffff888024b12098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
 #1: ffffc90002bad2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
3 locks held by syz.1.275/4551:
 #0: ffff88807a79c460 (sb_writers#22){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
 #1: ffff888073b8bf00 (&sb->s_type->i_mutex_key#30){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
 #1: ffff888073b8bf00 (&sb->s_type->i_mutex_key#30){++++}-{3:3}, at: vfs_setxattr+0x1dd/0x420 fs/xattr.c:302
 #2: ffff88807a79c650 (sb_internal#3){.+.+}-{0:0}, at: xfs_trans_alloc_inode+0x129/0x450 fs/xfs/xfs_trans.c:1047
3 locks held by syz.1.275/4595:
 #0: ffff88807a79c460 (sb_writers#22){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
 #1: ffff888073b89980 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
 #1: ffff888073b89980 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: vfs_utimes+0x449/0x760 fs/utimes.c:64
 #2: ffff88807a79c650 (sb_internal#3){.+.+}-{0:0}, at: xfs_trans_alloc_ichange+0xf9/0x640 fs/xfs/xfs_trans.c:1149

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.164-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0xe72/0xeb0 kernel/hung_task.c:295
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:108 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:562