loop1: detected capacity change from 0 to 264192 BTRFS info (device loop1): flagging fs with big metadata feature BTRFS info (device loop1): disk space caching is enabled BTRFS info (device loop1): has skinny extents BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 4536, name: syz-executor.1 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz-executor.1/4536: #0: ffff888028b700e0 (&type->s_umount_key#73/1){+.+.}-{3:3}, at: alloc_super+0x1dd/0xa80 fs/super.c:228 #1: ffff888023a600c0 (&fs_info->fs_roots_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:349 [inline] #1: ffff888023a600c0 (&fs_info->fs_roots_lock){+.+.}-{2:2}, at: btrfs_insert_fs_root+0x78/0x2e0 fs/btrfs/disk-io.c:1708 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 0 PID: 4536 Comm: syz-executor.1 Not tainted 5.19.0-rc6-syzkaller-00115-g4a57a8400075 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 __might_resched.cold+0x222/0x26b kernel/sched/core.c:9821 might_alloc include/linux/sched/mm.h:274 [inline] slab_pre_alloc_hook mm/slab.h:723 [inline] slab_alloc mm/slab.c:3285 [inline] __kmem_cache_alloc_lru mm/slab.c:3479 [inline] kmem_cache_alloc_lru+0x41b/0x8c0 mm/slab.c:3506 __xas_nomem+0x263/0x670 lib/xarray.c:340 __xa_insert+0x122/0x250 lib/xarray.c:1662 xa_insert include/linux/xarray.h:774 [inline] btrfs_insert_fs_root+0xf7/0x2e0 fs/btrfs/disk-io.c:1709 btrfs_get_root_ref.part.0+0x820/0xb80 fs/btrfs/disk-io.c:1855 btrfs_get_root_ref fs/btrfs/disk-io.c:1809 [inline] btrfs_get_fs_root fs/btrfs/disk-io.c:1887 [inline] btrfs_read_roots fs/btrfs/disk-io.c:2725 [inline] init_tree_roots fs/btrfs/disk-io.c:3111 [inline] open_ctree+0x2d88/0x49d3 fs/btrfs/disk-io.c:3736 btrfs_fill_super fs/btrfs/super.c:1455 [inline] btrfs_mount_root.cold+0x15/0x162 fs/btrfs/super.c:1821 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 fc_mount fs/namespace.c:1043 [inline] vfs_kern_mount.part.0+0xd3/0x170 fs/namespace.c:1073 vfs_kern_mount+0x3c/0x60 fs/namespace.c:1060 btrfs_mount+0x234/0xa60 fs/btrfs/super.c:1881 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3040 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4b9148a73a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4b925acf88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f4b9148a73a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f4b925acfe0 RBP: 00007f4b925ad020 R08: 00007f4b925ad020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f4b925acfe0 R15: 0000000020022400 BTRFS error (device loop1): open_ctree failed