igt@kms_flip@flip-vs-panning-interruptible@c-edp1 - dmesg-warn - rcu: INFO: rcu_preempt detected stalls on CPUs/tasks
<7> [556.886159] i915 0000:00:02.0: [drm:intel_pps_vdd_off_sync_unlocked [i915]] Turning [ENCODER:238:DDI A/PHY A] VDD off
<7> [556.886746] i915 0000:00:02.0: [drm:intel_pps_vdd_off_sync_unlocked [i915]] PP_STATUS: 0x80000008 PP_CONTROL: 0x00000067
<3> [607.307030] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
<3> [607.307121] rcu: 3-...!: (159 GPs behind) idle=834/0/0x0 softirq=27765/27765 fqs=1 (false positive?)
<3> [607.307825] rcu: 7-...!: (172 GPs behind) idle=abc/0/0x0 softirq=23642/23643 fqs=1 (false positive?)
<4> [607.307934] (detected by 0, t=65002 jiffies, g=64137, q=5840)
<6> [607.307942] Sending NMI from CPU 0 to CPUs 3:
<4> [607.308032] NMI backtrace for cpu 3 skipped: idling at intel_idle+0x67/0xc0
<6> [607.308950] Sending NMI from CPU 0 to CPUs 7:
<4> [607.309045] NMI backtrace for cpu 7 skipped: idling at intel_idle+0x67/0xc0
<3> [607.309957] rcu: rcu_preempt kthread timer wakeup didn't happen for 64995 jiffies! g64137 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
<3> [607.310053] rcu: Possible timer handling issue on cpu=3 timer-softirq=16787
<3> [607.310110] rcu: rcu_preempt kthread starved for 64998 jiffies! g64137 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=3
<3> [607.310195] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
<3> [607.310267] rcu: RCU grace-period kthread stack dump:
<6> [607.310310] task:rcu_preempt state:I stack:14472 pid: 13 ppid: 2 flags:0x00004000
<6> [607.310326] Call Trace:
<6> [607.310330] <TASK>
<6> [607.310339] __schedule+0x483/0xb50
<6> [607.310353] ? schedule_timeout+0x1b9/0x2e0
<6> [607.310367] schedule+0x3f/0xa0
<6> [607.310376] schedule_timeout+0x1be/0x2e0
<6> [607.310386] ? del_timer_sync+0xb0/0xb0
<6> [607.310398] ? 0xffffffff81000000
<6> [607.310408] ? rcu_gp_cleanup+0x440/0x440
<6> [607.310413] rcu_gp_fqs_loop+0x273/0x3b0
<6> [607.310427] rcu_gp_kthread+0xb8/0x120
<6> [607.310436] kthread+0xed/0x120
<6> [607.310443] ? kthread_complete_and_exit+0x20/0x20
<6> [607.310452] ret_from_fork+0x1f/0x30
<6> [607.310478] </TASK>
<3> [607.310481] rcu: Stack dump where RCU GP kthread last ran:
<6> [607.310527] Sending NMI from CPU 0 to CPUs 3:
<4> [607.310602] NMI backtrace for cpu 3 skipped: idling at intel_idle+0x67/0xc0
<6> [649.589614] Console: switching to colour frame buffer device 240x67
<7> [649.600773] i915 0000:00:02.0: [drm:intel_atomic_check [i915]] [CONNECTOR:239:eDP-1] Limiting display bpp to 24 instead of EDID bpp 24, requested bpp 36, max platform bpp 36