damon-dbgfs: DAMON debugfs interface is deprecated, so users should move to DAMON_SYSFS. If you cannot, please report your usecase to damon@lists.linux.dev and linux-mm@kvack.org. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 14072 at fs/read_write.c:504 __kernel_write_iter+0x51c/0x620 Modules linked in: CPU: 0 PID: 14072 Comm: syz-executor.5 Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __kernel_write_iter+0x51c/0x620 lr : __kernel_write_iter+0x518/0x620 fs/read_write.c:504 sp : ffff8000a71474c0 x29: ffff8000a71475a0 x28: ffff700014e28ea0 x27: ffff8000a7147640 x26: dfff800000000000 x25: fffffffffffffff7 x24: 1fffe00018b5245a x23: ffff0000c5a922d0 x22: ffff0000db117008 x21: dfff800000000000 x20: ffff0000c5a92280 x19: 0000000000088001 x18: ffff8000a7147540 x17: ffff800082269a9c x16: ffff80008a668b40 x15: 0000000000000005 x14: 1ffff00014e28ec8 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000040000 x10: 000000000000273a x9 : ffff800096ea9000 x8 : 000000000000273b x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000011 x3 : 0000000000000001 x2 : ffff0000db117008 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: __kernel_write_iter+0x51c/0x620 __kernel_write fs/read_write.c:537 [inline] kernel_write+0x1b0/0x2f0 fs/read_write.c:558 write_buf fs/btrfs/send.c:648 [inline] send_header fs/btrfs/send.c:766 [inline] send_subvol+0x174/0x3dc8 fs/btrfs/send.c:7936 btrfs_ioctl_send+0x1ba4/0x21cc fs/btrfs/send.c:8312 _btrfs_ioctl_send+0x314/0x468 fs/btrfs/ioctl.c:4364 btrfs_ioctl+0x638/0xb08 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857 __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 irq event stamp: 75720 hardirqs last enabled at (75719): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (75719): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (75720): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436 softirqs last enabled at (75690): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (75688): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---