------------[ cut here ]------------ workqueue: WQ_MEM_RECLAIM dio/loop4:dio_aio_complete_work is flushing !WQ_MEM_RECLAIM events_long:flush_mdb WARNING: CPU: 1 PID: 4294 at kernel/workqueue.c:2653 check_flush_dependency+0x2b0/0x350 kernel/workqueue.c:2649 Modules linked in: CPU: 1 PID: 4294 Comm: kworker/1:15 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Workqueue: dio/loop4 dio_aio_complete_work RIP: 0010:check_flush_dependency+0x2b0/0x350 kernel/workqueue.c:2649 Code: 74 08 4c 89 ff e8 30 19 70 00 49 8b 17 48 8b 0c 24 48 81 c1 60 01 00 00 48 c7 c7 80 63 2a 8a 4c 89 e6 4d 89 f0 e8 10 9f 63 08 <0f> 0b eb a1 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c a6 fd ff ff 4c RSP: 0018:ffffc9000318f8d8 EFLAGS: 00010046 RAX: f5f66f994cd93e00 RBX: dffffc0000000000 RCX: ffff888029e95940 RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 RBP: 0000000000000008 R08: ffff8880b912795b R09: 1ffff11017224f2b R10: dffffc0000000000 R11: ffffed1017224f2c R12: ffff88801f130160 R13: ffff88801f1301c0 R14: ffffffff82312bc0 R15: ffff888022e1e218 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1f1a2d7b00 CR3: 0000000074e84000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: start_flush_work+0x2b4/0x820 kernel/workqueue.c:3053 __flush_work+0x148/0x210 kernel/workqueue.c:3093 flush_work kernel/workqueue.c:3115 [inline] flush_delayed_work+0x12d/0x180 kernel/workqueue.c:3239 hfs_file_fsync+0xed/0x140 fs/hfs/inode.c:684 generic_write_sync include/linux/fs.h:2990 [inline] dio_complete+0x5ae/0x720 fs/direct-io.c:310 process_one_work+0x85f/0x1010 kernel/workqueue.c:2310 worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457 kthread+0x436/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287