ODEBUG: object ffffc90005e23b60 is on stack ffffc90005e20000, but NOT annotated. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 3247 at lib/debugobjects.c:557 debug_object_is_on_stack lib/debugobjects.c:557 [inline] WARNING: CPU: 1 PID: 3247 at lib/debugobjects.c:557 lookup_object_or_alloc lib/debugobjects.c:590 [inline] WARNING: CPU: 1 PID: 3247 at lib/debugobjects.c:557 __debug_object_init+0x1d7/0x2d0 lib/debugobjects.c:634 Modules linked in: CPU: 1 PID: 3247 Comm: bch-copygc/loop Not tainted 6.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:debug_object_is_on_stack lib/debugobjects.c:557 [inline] RIP: 0010:lookup_object_or_alloc lib/debugobjects.c:590 [inline] RIP: 0010:__debug_object_init+0x1d7/0x2d0 lib/debugobjects.c:634 Code: 3f 1b 04 eb 75 ff c0 89 05 2a 3f 1b 04 48 c7 c0 0b 8c c1 83 48 c7 c7 43 8c c1 83 84 c9 48 0f 45 f8 4c 89 fe e8 3a 14 27 01 90 <0f> 0b 90 e9 fb fe ff ff 31 c0 ff c1 89 0d ff 3e 1b 04 90 8b 53 10 RSP: 0018:ffffc90005e23a90 EFLAGS: 00010046 RAX: 0000000000000050 RBX: ffff88810f645b68 RCX: 269088413b456e00 RDX: 0000000000000000 RSI: ffffffff83d47328 RDI: 00000000ffffffff RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff840e1100 R10: 00000000ffffffff R11: 00000000ffffdfff R12: ffffffff85ea7d78 R13: 0000000000000282 R14: 000000000001c7f0 R15: ffffc90005e23b60 FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056460c74fb98 CR3: 000000011262e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rhashtable_init+0x27f/0x2e0 lib/rhashtable.c:1075 bch2_copygc_thread+0x114/0x460 fs/bcachefs/movinggc.c:313 kthread+0xf4/0x110 kernel/kthread.c:388 ret_from_fork+0x32/0x40 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:304