------------[ cut here ]------------ WARNING: CPU: 0 PID: 6786 at fs/buffer.c:1189 mark_buffer_dirty+0x284/0x490 fs/buffer.c:1189 Modules linked in: CPU: 0 UID: 0 PID: 6786 Comm: kworker/u8:14 Not tainted 6.16.0-rc1-syzkaller-g39dfc971e42d #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: writeback wb_workfn (flush-7:1) pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : mark_buffer_dirty+0x284/0x490 fs/buffer.c:1189 lr : mark_buffer_dirty+0x284/0x490 fs/buffer.c:1189 sp : ffff8000a2d96c80 x29: ffff8000a2d96c80 x28: ffff0000fbc2a160 x27: dfff800000000000 x26: ffff0000ff14b000 x25: ffff0000f3734a48 x24: ffff0000f37e32b8 x23: ffff0000fbc2a018 x22: ffff0000f37c99f8 x21: 1fffe0001f78542c x20: 0000000000000010 x19: ffff0000f37e32b8 x18: 0000000000000000 x17: ffff80009331f000 x16: ffff800080520d04 x15: 0000000000000001 x14: 1fffe0001e6fc657 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001e6fc658 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d0881e80 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff0000ff14b200 x4 : ffff0000eb6a0000 x3 : ffff800080e370fc x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: mark_buffer_dirty+0x284/0x490 fs/buffer.c:1189 (P) bfs_move_block fs/bfs/file.c:44 [inline] bfs_move_blocks fs/bfs/file.c:57 [inline] bfs_get_block+0x4d8/0x9d4 fs/bfs/file.c:126 __block_write_full_folio+0x358/0xd68 fs/buffer.c:1891 block_write_full_folio+0x35c/0x41c fs/buffer.c:-1 mpage_write_folio fs/mpage.c:635 [inline] mpage_writepages+0x84c/0x18ec fs/mpage.c:664 bfs_writepages+0x30/0x40 fs/bfs/file.c:157 do_writepages+0x270/0x468 mm/page-writeback.c:2636 __writeback_single_inode+0x15c/0x13e8 fs/fs-writeback.c:1680 writeback_sb_inodes+0x558/0xe38 fs/fs-writeback.c:1976 wb_writeback+0x3cc/0xd70 fs/fs-writeback.c:2156 wb_do_writeback fs/fs-writeback.c:2303 [inline] wb_workfn+0x338/0xdc0 fs/fs-writeback.c:2343 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3402 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847 irq event stamp: 889318 hardirqs last enabled at (889317): [] bh_lru_install fs/buffer.c:1359 [inline] hardirqs last enabled at (889317): [] find_get_block_common+0x970/0xde8 fs/buffer.c:1416 hardirqs last disabled at (889318): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:511 softirqs last enabled at (889196): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (889196): [] batadv_nc_purge_paths+0x2f4/0x37c net/batman-adv/network-coding.c:471 softirqs last disabled at (889194): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (889194): [] batadv_nc_purge_paths+0xd0/0x37c net/batman-adv/network-coding.c:442 ---[ end trace 0000000000000000 ]---