# tracer: irqsoff
#
# irqsoff latency trace v1.1.5 on 6.12.0.g4236f913-master
# --------------------------------------------------------------------
# latency: 77766 us, #12/12, CPU#5 | (M:unknown VP:0, KP:0, SP:0 HP:0 #P:8)
#    -----------------
#    | task: kswapd0-90 (uid:0 nice:0 policy:0 rt_prio:0)
#    -----------------
#  => started at: _raw_spin_lock_irq+0x16/0x40
#  => ended at:   _raw_spin_unlock_irq+0x10/0x30
#
#
#                    _------=> CPU#            
#                   / _-----=> irqs-off/BH-disabled
#                  | / _----=> need-resched    
#                  || / _---=> hardirq/softirq 
#                  ||| / _--=> preempt-depth   
#                  |||| / _-=> migrate-disable 
#                  ||||| /     delay           
#  cmd     pid     |||||| time  |   caller     
#     \   /        ||||||  \    |    /       
 kswapd0-90        5d....    0us : _raw_spin_lock_irq+0x16/0x40
 kswapd0-90        5d....    0us : preempt_count_add+0x0/0x50 <-_raw_spin_lock_irq+0x20/0x40
 kswapd0-90        5d..1.    0us*: isolate_lru_folios+0x0/0x3e0 <-shrink_inactive_list+0x10f/0x440
 kswapd0-90        5d..1. 77765us : __rcu_read_lock+0x0/0x20 <-isolate_lru_folios+0x160/0x3e0
 kswapd0-90        5d..1. 77765us : __rcu_read_unlock+0x0/0x180 <-isolate_lru_folios+0x199/0x3e0
 kswapd0-90        5d..1. 77766us : __mod_node_page_state+0x0/0x70 <-isolate_lru_folios+0x2ee/0x3e0
 kswapd0-90        5d..1. 77766us : __mod_zone_page_state+0x0/0x60 <-isolate_lru_folios+0x2fc/0x3e0
 kswapd0-90        5d..1. 77766us : __mod_node_page_state+0x0/0x70 <-shrink_inactive_list+0x12a/0x440
 kswapd0-90        5d..1. 77766us : _raw_spin_unlock_irq+0x0/0x30 <-shrink_inactive_list+0x16a/0x440
 kswapd0-90        5d..1. 77766us : _raw_spin_unlock_irq+0x10/0x30
 kswapd0-90        5d..1. 77767us : tracer_hardirqs_on+0xcb/0xe0 <-_raw_spin_unlock_irq+0x10/0x30
 kswapd0-90        5d..1. 77774us : <stack trace>
 => shrink_inactive_list+0x16a/0x440
 => shrink_lruvec+0x2fc/0x470
 => shrink_node+0x1d6/0x4a0
 => balance_pgdat+0x280/0x5c0
 => kswapd+0x10f/0x350
 => kthread+0xfa/0x130
 => ret_from_fork+0x2d/0x50
 => ret_from_fork_asm+0x11/0x20