flagging btree xattrs lost data
  ret btree_node_read_err_bad_node
------------[ cut here ]------------
btree trans held srcu lock (delaying memory reclaim) for 36 seconds
WARNING: CPU: 0 PID: 7195 at fs/bcachefs/btree_iter.c:3276 check_srcu_held_too_long fs/bcachefs/btree_iter.c:3274 [inline]
WARNING: CPU: 0 PID: 7195 at fs/bcachefs/btree_iter.c:3276 bch2_trans_put+0xf90/0x1220 fs/bcachefs/btree_iter.c:3570
Modules linked in:
CPU: 0 UID: 0 PID: 7195 Comm: syz.4.280 Not tainted 6.17.0-rc1-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:check_srcu_held_too_long fs/bcachefs/btree_iter.c:3274 [inline]
RIP: 0010:bch2_trans_put+0xf90/0x1220 fs/bcachefs/btree_iter.c:3570
Code: 2b 33 49 c1 ee 02 48 b9 c3 f5 28 5c 8f c2 f5 28 4c 89 f0 48 f7 e1 48 c1 ea 02 48 c7 c7 e0 b2 d3 8b 48 89 d6 e8 c1 22 5a fd 90 <0f> 0b 90 90 e9 98 f7 ff ff e8 32 84 96 fd 90 0f 0b 90 e9 de f7 ff
RSP: 0018:ffffc9000380ef40 EFLAGS: 00010246
RAX: 9653ff5be6726700 RBX: ffff8880543f0088 RCX: 0000000000080000
RDX: ffffc9000cb6e000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000380f0b0 R08: ffff8880b8624253 R09: 1ffff110170c484a
R10: dffffc0000000000 R11: ffffed10170c484b R12: 00000000fffffa76
R13: 1ffff1100a87e011 R14: 0000000000000388 R15: 1ffff1100a87e009
FS:  00007f44c37be6c0(0000) GS:ffff888125c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efea3d17a0e CR3: 000000004abf9000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 class_btree_trans_destructor fs/bcachefs/btree_iter.h:991 [inline]
 bch2_btree_root_read+0x6b6/0x760 fs/bcachefs/btree_io.c:1928
 read_btree_roots+0x2c6/0x840 fs/bcachefs/recovery.c:615
 bch2_fs_recovery+0x261f/0x3a50 fs/bcachefs/recovery.c:1006
 bch2_fs_start+0xaaf/0xda0 fs/bcachefs/super.c:1213
 bch2_fs_get_tree+0xb39/0x1520 fs/bcachefs/fs.c:2488
 vfs_get_tree+0x92/0x2b0 fs/super.c:1815
 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3805
 do_mount fs/namespace.c:4133 [inline]
 __do_sys_mount fs/namespace.c:4344 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4321
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f44c299038a
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:00007f44c37bde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f44c37bdef0 RCX: 00007f44c299038a
RDX: 0000200000000000 RSI: 0000200000000180 RDI: 00007f44c37bdeb0
RBP: 0000200000000000 R08: 00007f44c37bdef0 R09: 0000000000800058
R10: 0000000000800058 R11: 0000000000000246 R12: 0000200000000180
R13: 00007f44c37bdeb0 R14: 0000000000005a5e R15: 00002000000000c0
 </TASK>