bcachefs (loop0): shutting down bcachefs (loop0): going read-only bcachefs (loop0): finished waiting for writes to stop bcachefs (loop0): flushing journal and stopping allocators, journal seq 13 bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 13 ------------[ cut here ]------------ kernel BUG at fs/bcachefs/journal.c:1185! invalid opcode: 0000 [#1] PREEMPT SMP PTI CPU: 0 PID: 1973 Comm: syz-executor.0 Not tainted 6.9.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:bch2_fs_journal_stop+0x13d/0x140 fs/bcachefs/journal.c:1183 Code: f0 41 80 66 40 fd 65 48 8b 04 25 28 00 00 00 48 3b 44 24 28 75 0e 48 83 c4 30 5b 41 5e 41 5f c3 cc cc cc cc e8 a4 3c 09 01 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f RSP: 0018:ffffc90001dc3d20 EFLAGS: 00010202 RAX: 000000000000000e RBX: 0000000000000002 RCX: 19e7ce90faf2af00 RDX: d51d11cabcd2c7c4 RSI: ffffffff8355e45e RDI: ffffffff83613827 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000000d R13: 0000000000000000 R14: ffff88810d7ca180 R15: ffff88810d780000 FS: 00005555726b0480(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff54872f38 CR3: 00000001063cc000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __bch2_fs_read_only+0x10e/0x190 fs/bcachefs/super.c:292 bch2_fs_read_only+0x274/0x460 fs/bcachefs/super.c:357 __bch2_fs_stop+0x6b/0x260 fs/bcachefs/super.c:624 generic_shutdown_super+0x71/0x110 fs/super.c:641 bch2_kill_sb+0x11/0x20 fs/bcachefs/fs.c:2012 deactivate_locked_super+0x2d/0x90 fs/super.c:472 cleanup_mnt+0xfe/0x150 fs/namespace.c:1267 task_work_run+0x82/0xb0 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xb6/0x1f0 kernel/entry/common.c:218 do_syscall_64+0xef/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa42c27f097 Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fff548736e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fa42c27f097 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff548737a0 RBP: 00007fff548737a0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff54874860 R13: 00007fa42c2c9336 R14: 000000000000ad52 R15: 0000000000000001 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_fs_journal_stop+0x13d/0x140 fs/bcachefs/journal.c:1183 Code: f0 41 80 66 40 fd 65 48 8b 04 25 28 00 00 00 48 3b 44 24 28 75 0e 48 83 c4 30 5b 41 5e 41 5f c3 cc cc cc cc e8 a4 3c 09 01 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f RSP: 0018:ffffc90001dc3d20 EFLAGS: 00010202 RAX: 000000000000000e RBX: 0000000000000002 RCX: 19e7ce90faf2af00 RDX: d51d11cabcd2c7c4 RSI: ffffffff8355e45e RDI: ffffffff83613827 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000000d R13: 0000000000000000 R14: ffff88810d7ca180 R15: ffff88810d780000 FS: 00005555726b0480(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff54872f38 CR3: 00000001063cc000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400