bcachefs (loop0): bch2_write_super(): fatal error loop0: Superblock write was silently dropped! (seq 0 expected 53) bcachefs (loop0): fatal error - emergency read only ------------[ cut here ]------------ kernel BUG at fs/bcachefs/journal.h:375! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 12 Comm: kworker/u4:1 Not tainted 6.12.0-rc7-syzkaller-00042-gf1b785f4c787 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: btree_update btree_interior_update_work RIP: 0010:bch2_journal_res_get fs/bcachefs/journal.h:375 [inline] RIP: 0010:bch2_trans_journal_res_get fs/bcachefs/btree_trans_commit.c:350 [inline] RIP: 0010:bch2_trans_commit_write_locked fs/bcachefs/btree_trans_commit.c:668 [inline] RIP: 0010:do_bch2_trans_commit fs/bcachefs/btree_trans_commit.c:900 [inline] RIP: 0010:__bch2_trans_commit+0x9232/0x93c0 fs/bcachefs/btree_trans_commit.c:1121 Code: fd 90 0f 0b e8 ff 41 75 fd 90 0f 0b e8 f7 41 75 fd 90 0f 0b e8 ef 41 75 fd 90 0f 0b e8 e7 41 75 fd 90 0f 0b e8 df 41 75 fd 90 <0f> 0b e8 d7 41 75 fd 90 0f 0b e8 cf 41 75 fd 90 0f 0b e8 c7 41 75 RSP: 0018:ffffc900003e76c0 EFLAGS: 00010293 RAX: ffffffff841fa831 RBX: 0000000000000000 RCX: ffff88801b744880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900003e7890 R08: ffffffff841f4b68 R09: 1ffff1100a0494a8 R10: dffffc0000000000 R11: ffffed100a0494a9 R12: ffff888050200000 R13: ffff88805024a500 R14: 0000000000000044 R15: ffff8880424540d0 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561c364233c8 CR3: 0000000043afa000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_trans_commit fs/bcachefs/btree_update.h:184 [inline] btree_update_nodes_written fs/bcachefs/btree_update_interior.c:723 [inline] btree_interior_update_work+0x1492/0x2b10 fs/bcachefs/btree_update_interior.c:861 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 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 ]--- RIP: 0010:bch2_journal_res_get fs/bcachefs/journal.h:375 [inline] RIP: 0010:bch2_trans_journal_res_get fs/bcachefs/btree_trans_commit.c:350 [inline] RIP: 0010:bch2_trans_commit_write_locked fs/bcachefs/btree_trans_commit.c:668 [inline] RIP: 0010:do_bch2_trans_commit fs/bcachefs/btree_trans_commit.c:900 [inline] RIP: 0010:__bch2_trans_commit+0x9232/0x93c0 fs/bcachefs/btree_trans_commit.c:1121 Code: fd 90 0f 0b e8 ff 41 75 fd 90 0f 0b e8 f7 41 75 fd 90 0f 0b e8 ef 41 75 fd 90 0f 0b e8 e7 41 75 fd 90 0f 0b e8 df 41 75 fd 90 <0f> 0b e8 d7 41 75 fd 90 0f 0b e8 cf 41 75 fd 90 0f 0b e8 c7 41 75 RSP: 0018:ffffc900003e76c0 EFLAGS: 00010293 RAX: ffffffff841fa831 RBX: 0000000000000000 RCX: ffff88801b744880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900003e7890 R08: ffffffff841f4b68 R09: 1ffff1100a0494a8 R10: dffffc0000000000 R11: ffffed100a0494a9 R12: ffff888050200000 R13: ffff88805024a500 R14: 0000000000000044 R15: ffff8880424540d0 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561c364233c8 CR3: 0000000043afa000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400