loop3: detected capacity change from 0 to 32768 BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop3 (7:3) scanned by syz.3.348 (6691) BTRFS error: failed to open device for path /dev/loop3 with flags 0x3: -16 BUG: sleeping function called from invalid context at include/linux/sched/mm.h:330 in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 6691, name: syz.3.348 preempt_count: 0, expected: 0 RCU nest depth: 1, expected: 0 INFO: lockdep is turned off. CPU: 0 UID: 0 PID: 6691 Comm: syz.3.348 Not tainted 6.12.0-rc2-next-20241008-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 __might_resched+0x5d4/0x780 kernel/sched/core.c:8638 might_alloc include/linux/sched/mm.h:330 [inline] slab_pre_alloc_hook mm/slub.c:4062 [inline] slab_alloc_node mm/slub.c:4140 [inline] kmem_cache_alloc_noprof+0x61/0x380 mm/slub.c:4167 getname_kernel+0x59/0x2f0 fs/namei.c:234 kern_path+0x1d/0x50 fs/namei.c:2716 is_same_device fs/btrfs/volumes.c:812 [inline] device_list_add+0xc64/0x1ea0 fs/btrfs/volumes.c:947 btrfs_scan_one_device+0xab5/0xd90 fs/btrfs/volumes.c:1538 btrfs_get_tree_super fs/btrfs/super.c:1841 [inline] btrfs_get_tree+0x30e/0x1920 fs/btrfs/super.c:2114 vfs_get_tree+0x90/0x2b0 fs/super.c:1800 fc_mount+0x1b/0xb0 fs/namespace.c:1231 btrfs_reconfigure_for_mount fs/btrfs/super.c:2010 [inline] btrfs_get_tree_subvol fs/btrfs/super.c:2079 [inline] btrfs_get_tree+0x6cd/0x1920 fs/btrfs/super.c:2115 vfs_get_tree+0x90/0x2b0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4055 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4032 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f39c777f79a 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:00007f39c85c8e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f39c85c8ef0 RCX: 00007f39c777f79a RDX: 0000000020000100 RSI: 0000000020005140 RDI: 00007f39c85c8eb0 RBP: 0000000020000100 R08: 00007f39c85c8ef0 R09: 0000000000000816 R10: 0000000000000816 R11: 0000000000000246 R12: 0000000020005140 R13: 00007f39c85c8eb0 R14: 00000000000050ed R15: 0000000020000140 BTRFS info (device loop3): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf BTRFS info (device loop3): using crc32c (crc32c-intel) checksum algorithm BTRFS info (device loop3): using free-space-tree BTRFS error (device loop3 state M): cannot disable free-space-tree BTRFS info (device loop3 state M): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf