------------[ cut here ]------------
btree trans held srcu lock (delaying memory reclaim) for 103 seconds
WARNING: fs/bcachefs/btree_iter.c:3305 at check_srcu_held_too_long fs/bcachefs/btree_iter.c:3303 [inline], CPU#1: syz.2.1559/20118
WARNING: fs/bcachefs/btree_iter.c:3305 at bch2_trans_srcu_unlock+0x50d/0x620 fs/bcachefs/btree_iter.c:3319, CPU#1: syz.2.1559/20118
Modules linked in:
CPU: 1 UID: 0 PID: 20118 Comm: syz.2.1559 Not tainted 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:3303 [inline]
RIP: 0010:bch2_trans_srcu_unlock+0x50d/0x620 fs/bcachefs/btree_iter.c:3319
Code: 7d 00 49 c1 ef 02 48 b9 c3 f5 28 5c 8f c2 f5 28 4c 89 f8 48 f7 e1 48 c1 ea 02 48 c7 c7 20 be f3 8b 48 89 d6 e8 44 1a 59 fd 90 <0f> 0b 90 90 e9 a6 fe ff ff 44 89 e1 80 e1 07 38 c1 0f 8c 1c fb ff
RSP: 0018:ffffc9000392e218 EFLAGS: 00010246
RAX: 994c4990f4940600 RBX: 1ffff110066ef809 RCX: 0000000000080000
RDX: ffffc9000c629000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: 1ffff110066ef811 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1c3a604 R12: ffff88803377c046
R13: ffff88803377c088 R14: 1ffff110066ef808 R15: 0000000000000a0f
FS:  00007f609bacf6c0(0000) GS:ffff888125aff000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fda1b000218 CR3: 000000003dd6c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 bch2_trans_begin+0x1b6b/0x2350 fs/bcachefs/btree_iter.c:3419
 bch2_btree_write_buffer_flush_locked+0x2256/0x49b0 fs/bcachefs/btree_write_buffer.c:394
 btree_write_buffer_flush_seq+0x178d/0x1910 fs/bcachefs/btree_write_buffer.c:562
 bch2_btree_write_buffer_journal_flush+0x69/0xb0 fs/bcachefs/btree_write_buffer.c:578
 journal_flush_pins+0x9c4/0xed0 fs/bcachefs/journal_reclaim.c:607
 journal_flush_pins_or_still_flushing fs/bcachefs/journal_reclaim.c:869 [inline]
 journal_flush_done+0x13c/0x8b0 fs/bcachefs/journal_reclaim.c:887
 bch2_journal_flush_pins+0xdc/0x250 fs/bcachefs/journal_reclaim.c:941
 bch2_journal_flush_all_pins fs/bcachefs/journal_reclaim.h:76 [inline]
 bch2_journal_replay+0x2677/0x28e0 fs/bcachefs/recovery.c:475
 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:487 [inline]
 __bch2_run_recovery_passes+0x3b7/0x1090 fs/bcachefs/recovery_passes.c:543
 bch2_run_recovery_passes+0x184/0x210 fs/bcachefs/recovery_passes.c:614
 bch2_fs_recovery+0x1af4/0x2c20 fs/bcachefs/recovery.c:813
 bch2_fs_start+0x97f/0xd10 fs/bcachefs/super.c:1405
 bch2_fs_get_tree+0xb35/0x1540 fs/bcachefs/fs.c:2446
 vfs_get_tree+0x92/0x2b0 fs/super.c:1752
 do_new_mount+0x2a2/0xa30 fs/namespace.c:3810
 do_mount fs/namespace.c:4138 [inline]
 __do_sys_mount fs/namespace.c:4349 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4326
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f609ab9038a
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:00007f609bacee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f609baceef0 RCX: 00007f609ab9038a
RDX: 0000200000024c80 RSI: 0000200000000080 RDI: 00007f609baceeb0
RBP: 0000200000024c80 R08: 00007f609baceef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000080
R13: 00007f609baceeb0 R14: 0000000000024c71 R15: 00002000000000c0
 </TASK>