Re: [syzbot] [bcachefs?] kernel BUG in vfs_get_tree

[Edward Adam Davis <eadavis@qq.com>]

db

#syz test

diff --git a/fs/bcachefs/fs.c b/fs/bcachefs/fs.c
index 4a1bb07a2574..49d711e9837e 100644
--- a/fs/bcachefs/fs.c
+++ b/fs/bcachefs/fs.c
@@ -2148,6 +2148,7 @@ static int bch2_fs_get_tree(struct fs_context *fc)
 out:
 	fc->root = dget(sb->s_root);
 err:
+	pr_info("ret: %d, sb: %p, fc: %p, fcroot: %p, %s\n", ret, sb, fc, fc->root, __func__);
 	darray_exit(&devs_to_fs);
 	bch2_darray_str_exit(&devs);
 	if (ret)
diff --git a/fs/bcachefs/recovery.c b/fs/bcachefs/recovery.c
index be1e7ca4362f..12835c0290f8 100644
--- a/fs/bcachefs/recovery.c
+++ b/fs/bcachefs/recovery.c
@@ -849,6 +849,7 @@ int bch2_fs_recovery(struct bch_fs *c)
 		atomic64_add(1 << 16, &c->key_version);
 
 	ret = read_btree_roots(c);
+	pr_info("ret: %d, %s\n", ret, __func__);
 	if (ret)
 		goto err;
 
diff --git a/fs/bcachefs/super.c b/fs/bcachefs/super.c
index 873e4be7e1dc..9fb45c7e7063 100644
--- a/fs/bcachefs/super.c
+++ b/fs/bcachefs/super.c
@@ -1011,6 +1011,7 @@ int bch2_fs_start(struct bch_fs *c)
 	mutex_lock(&c->sb_lock);
 
 	ret = bch2_sb_members_v2_init(c);
+	pr_info("ret: %d, %s\n", ret, __func__);
 	if (ret) {
 		mutex_unlock(&c->sb_lock);
 		goto err;
@@ -1036,6 +1037,7 @@ int bch2_fs_start(struct bch_fs *c)
 	ret = BCH_SB_INITIALIZED(c->disk_sb.sb)
 		? bch2_fs_recovery(c)
 		: bch2_fs_initialize(c);
+	pr_info("2ret: %d, %s\n", ret, __func__);
 	if (ret)
 		goto err;