------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_cache.h:126! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5132 Comm: read_btree_node Not tainted 6.11.0-syzkaller-08481-g88264981f208 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:bch2_btree_id_root fs/bcachefs/btree_cache.h:126 [inline] RIP: 0010:bch2_btree_pos_to_text+0x1ee/0x1f0 fs/bcachefs/btree_cache.c:1295 Code: 00 00 fc ff df e9 70 ff ff ff 89 d9 80 e1 07 38 c1 0f 8c 7a ff ff ff 48 89 df e8 5d a5 eb fd e9 6d ff ff ff e8 a3 4c 82 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa RSP: 0018:ffffc900034af448 EFLAGS: 00010293 RAX: ffffffff84126d0d RBX: 0000000000000035 RCX: ffff888000c14880 RDX: 0000000000000000 RSI: 0000000000000035 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff84126bfa R09: 0000000000000000 R10: ffffc900034af5e0 R11: fffff52000695ec1 R12: ffff888013105000 R13: ffff88804ce00000 R14: ffff88804ce00000 R15: ffffc900034af5e0 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007effab459eff CR3: 0000000011eb6000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btree_node_read_work+0x486/0x1260 fs/bcachefs/btree_io.c:1308 bch2_btree_node_read+0x2433/0x2a10 bch2_btree_node_fill+0xcd1/0x1320 fs/bcachefs/btree_cache.c:886 bch2_btree_node_get_noiter+0x9b3/0xf50 fs/bcachefs/btree_cache.c:1155 found_btree_node_is_readable fs/bcachefs/btree_node_scan.c:85 [inline] try_read_btree_node fs/bcachefs/btree_node_scan.c:190 [inline] read_btree_nodes_worker+0x122c/0x20b0 fs/bcachefs/btree_node_scan.c:239 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]---