bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 3340 bcachefs (loop0): unshutdown complete, journal seq 3341 bcachefs (loop0): done going read-only, filesystem not clean bcachefs (loop0): shutdown complete ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_cache.c:614! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 5829 Comm: syz-executor249 Not tainted 6.12.0-rc6-syzkaller-00192-gf1dce1f09380 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:bch2_fs_btree_cache_exit+0x1521/0x1530 fs/bcachefs/btree_cache.c:613 Code: fd 90 0f 0b e8 70 18 84 fd 90 0f 0b e8 68 18 84 fd 90 0f 0b e8 60 18 84 fd 90 0f 0b e8 58 18 84 fd 90 0f 0b e8 50 18 84 fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 RSP: 0018:ffffc90003d07b18 EFLAGS: 00010293 RAX: ffffffff8410c1b0 RBX: 0000000000000002 RCX: ffff888030439e00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffff88807da36000 R08: ffffffff8410b85c R09: 1ffff1100eab03b6 R10: dffffc0000000000 R11: ffffed100eab03b7 R12: ffff88807da36228 R13: dffffc0000000000 R14: ffff888075581c78 R15: ffff888075580000 FS: 0000555575943380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffef9018000 CR3: 0000000031bc6000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __bch2_fs_free fs/bcachefs/super.c:556 [inline] bch2_fs_release+0x20e/0x7d0 fs/bcachefs/super.c:610 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x22f/0x480 lib/kobject.c:737 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373 task_work_run+0x24f/0x310 kernel/task_work.c:239 ptrace_notify+0x2d2/0x380 kernel/signal.c:2403 ptrace_report_syscall include/linux/ptrace.h:415 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:477 [inline] syscall_exit_work+0xc6/0x190 kernel/entry/common.c:173 syscall_exit_to_user_mode_prepare kernel/entry/common.c:200 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:205 [inline] syscall_exit_to_user_mode+0x279/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2cf4989347 Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffef90160d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f2cf4989347 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef9016190 RBP: 00007ffef9016190 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffef90171f0 R13: 00005555759446c0 R14: 000000000000000d R15: 431bde82d7b634db Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_fs_btree_cache_exit+0x1521/0x1530 fs/bcachefs/btree_cache.c:613 Code: fd 90 0f 0b e8 70 18 84 fd 90 0f 0b e8 68 18 84 fd 90 0f 0b e8 60 18 84 fd 90 0f 0b e8 58 18 84 fd 90 0f 0b e8 50 18 84 fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 RSP: 0018:ffffc90003d07b18 EFLAGS: 00010293 RAX: ffffffff8410c1b0 RBX: 0000000000000002 RCX: ffff888030439e00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffff88807da36000 R08: ffffffff8410b85c R09: 1ffff1100eab03b6 R10: dffffc0000000000 R11: ffffed100eab03b7 R12: ffff88807da36228 R13: dffffc0000000000 R14: ffff888075581c78 R15: ffff888075580000 FS: 0000555575943380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffef9018000 CR3: 0000000031bc6000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400