bcachefs (loop2): bch2_fs_start(): error starting filesystem ENOMEM
bcachefs (loop2): shutting down
bcachefs (loop2): shutdown complete
bcachefs: bch2_fs_get_tree() error: ENOMEM
Filesystem bcachefs get_tree() didn't set fc->root, returned 12
------------[ cut here ]------------
kernel BUG at fs/super.c:1769!
Oops: invalid opcode: 0000 [#1] SMP PTI
CPU: 1 UID: 0 PID: 4043 Comm: syz.2.16 Not tainted 6.15.0-rc4-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:vfs_get_tree+0xe8/0xf0 fs/super.c:1769
Code: 47 af 1b 84 e8 59 51 af ff 90 0f 0b 90 90 eb bb 48 8b 83 98 00 00 00 48 8b 30 48 c7 c7 50 9b 3f 84 44 89 f2 e8 b9 83 af ff 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90003cb7e38 EFLAGS: 00010246
RAX: 000000000000003f RBX: ffff88810a308000 RCX: 3f54c48ec447fe00
RDX: 0000000000000002 RSI: 00000000ffffdfff RDI: 00000000ffffffff
RBP: 00000000ffffffff R08: 0000000000001fff R09: ffffffff846a3b10
R10: 0000000000005ffd R11: 00000000ffffdfff R12: 0000000000000000
R13: ffffffff848a56a8 R14: 000000000000000c R15: ffff88810fdfd450
FS:  00007fda2b2026c0(0000) GS:ffff8881b6072000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f58611b0000 CR3: 0000000105bb8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_new_mount+0x13f/0x390 fs/namespace.c:3884
 do_mount fs/namespace.c:4224 [inline]
 __do_sys_mount fs/namespace.c:4435 [inline]
 __se_sys_mount+0x147/0x1b0 fs/namespace.c:4412
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fda2a39010a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fda2b201e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fda2b201ef0 RCX: 00007fda2a39010a
RDX: 00002000000000c0 RSI: 0000200000000000 RDI: 00007fda2b201eb0
RBP: 00002000000000c0 R08: 00007fda2b201ef0 R09: 0000000000800000
R10: 0000000000800000 R11: 0000000000000246 R12: 0000200000000000
R13: 00007fda2b201eb0 R14: 0000000000005978 R15: 00002000000003c0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:vfs_get_tree+0xe8/0xf0 fs/super.c:1769
Code: 47 af 1b 84 e8 59 51 af ff 90 0f 0b 90 90 eb bb 48 8b 83 98 00 00 00 48 8b 30 48 c7 c7 50 9b 3f 84 44 89 f2 e8 b9 83 af ff 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90003cb7e38 EFLAGS: 00010246
RAX: 000000000000003f RBX: ffff88810a308000 RCX: 3f54c48ec447fe00
RDX: 0000000000000002 RSI: 00000000ffffdfff RDI: 00000000ffffffff
RBP: 00000000ffffffff R08: 0000000000001fff R09: ffffffff846a3b10
R10: 0000000000005ffd R11: 00000000ffffdfff R12: 0000000000000000
R13: ffffffff848a56a8 R14: 000000000000000c R15: ffff88810fdfd450
FS:  00007fda2b2026c0(0000) GS:ffff8881b6072000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f58611b0000 CR3: 0000000105bb8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400