sched: DL replenish lagged too much
------------[ cut here ]------------
btree trans held srcu lock (delaying memory reclaim) for 12 seconds
WARNING: CPU: 0 PID: 7603 at fs/bcachefs/btree_iter.c:3276 check_srcu_held_too_long fs/bcachefs/btree_iter.c:3274 [inline]
WARNING: CPU: 0 PID: 7603 at fs/bcachefs/btree_iter.c:3276 bch2_trans_srcu_unlock+0x438/0x514 fs/bcachefs/btree_iter.c:3290
Modules linked in:
CPU: 0 UID: 0 PID: 7603 Comm: bch-reclaim/loo Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : check_srcu_held_too_long fs/bcachefs/btree_iter.c:3274 [inline]
pc : bch2_trans_srcu_unlock+0x438/0x514 fs/bcachefs/btree_iter.c:3290
lr : check_srcu_held_too_long fs/bcachefs/btree_iter.c:3274 [inline]
lr : bch2_trans_srcu_unlock+0x438/0x514 fs/bcachefs/btree_iter.c:3290
sp : ffff8000a0e97440
x29: ffff8000a0e97470 x28: 1fffe0001cbd4808 x27: dfff800000000000
x26: 0000000000000000 x25: ffff000102480000 x24: ffff80008f600000
x23: 1ffff00011ec0040 x22: 00000000ffffac8c x21: ffffffffffffff1c
x20: ffff0000e5ea4000 x19: ffff0000e5ea4046 x18: 00000000ffffffff
x17: ffff800093376000 x16: ffff80008ae69508 x15: ffff700011ee0158
x14: 1ffff00011ee0158 x13: 0000000000000004 x12: ffffffffffffffff
x11: ffff700011ee0158 x10: 0000000000ff0100 x9 : 5cb82ae90ffd5e00
x8 : 5cb82ae90ffd5e00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000a0e96d98 x4 : ffff80008f776bc0 x3 : ffff80008054bdfc
x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 check_srcu_held_too_long fs/bcachefs/btree_iter.c:3274 [inline] (P)
 bch2_trans_srcu_unlock+0x438/0x514 fs/bcachefs/btree_iter.c:3290 (P)
 bch2_trans_begin+0x930/0xd30 fs/bcachefs/btree_iter.c:3387
 bch2_btree_write_buffer_flush_locked+0x1048/0x2520 fs/bcachefs/btree_write_buffer.c:403
 btree_write_buffer_flush_seq+0x1080/0x11c0 fs/bcachefs/btree_write_buffer.c:572
 bch2_btree_write_buffer_journal_flush+0x70/0xc8 fs/bcachefs/btree_write_buffer.c:588
 journal_flush_pins+0x6f4/0xc98 fs/bcachefs/journal_reclaim.c:604
 __bch2_journal_reclaim+0x82c/0xf5c fs/bcachefs/journal_reclaim.c:732
 bch2_journal_reclaim_thread+0x13c/0x480 fs/bcachefs/journal_reclaim.c:774
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844
irq event stamp: 53696
hardirqs last  enabled at (53695): [<ffff8000805532e8>] __up_console_sem kernel/printk/printk.c:344 [inline]
hardirqs last  enabled at (53695): [<ffff8000805532e8>] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885
hardirqs last disabled at (53696): [<ffff80008aefc634>] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574
softirqs last  enabled at (53690): [<ffff8000803cedfc>] softirq_handle_end kernel/softirq.c:425 [inline]
softirqs last  enabled at (53690): [<ffff8000803cedfc>] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607
softirqs last disabled at (47755): [<ffff800080020efc>] __do_softirq+0x14/0x20 kernel/softirq.c:613
---[ end trace 0000000000000000 ]---