And this is log from /sys/kernel/debug/tracing/trace
# entries-in-buffer/entries-written: 32410/32410 #P:64
#
# _-----=> irqs-off
# / _----=> need-resched
# | / _---=> hardirq/softirq
# || / _--=> preempt-depth
# ||| / delay
# TASK-PID CPU# |||| TIMESTAMP FUNCTION
# | | | |||| | |
<...>-57259 [005] .... 29619.680698: workqueue_execute_start: work
struct 00000000ef22e4b8: function gc_worker [nf_conntrack]
<...>-57259 [005] .... 29623.811407: workqueue_execute_end: work
struct 00000000ef22e4b8: function gc_worker [nf_conntrack]
<...>-57259 [005] .... 29623.811410: workqueue_execute_start: work
struct 0000000000aeec55: function fb_flashcursor
<...>-57259 [005] .... 29623.811421: workqueue_execute_end: work
struct 0000000000aeec55: function fb_flashcursor
<...>-57259 [005] .... 29623.811422: workqueue_execute_start: work
struct 00000000a6d382bb: function vmstat_update
<...>-57259 [005] .... 29623.811435: workqueue_execute_end: work
struct 00000000a6d382bb: function vmstat_update
> On 7 Jul 2020, at 22:44, Martin Zaharinov <micro...@gmail.com> wrote:
>
> the problem is hear with kernel 5.7.7
>
> last work kernel without this problem is 5.6.7
>
> hear is more info:
>
> cat /proc/57259/stack
> root@megacableamarilis:~# cat /proc/57259/stack
> [<0>] gc_worker+0x1be/0x380 [nf_conntrack]
> [<0>] process_one_work+0x1bc/0x3b0
> [<0>] worker_thread+0x4d/0x460
> [<0>] kthread+0x10d/0x130
> [<0>] ret_from_fork+0x1f/0x30
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 57259 root 28 0 0 0 0 R 69.8
> 0.0 82:42.14 kworker/5:2+events_power_efficient
>
> 32 root 21 0 0 0 0 R 31.0 0.0 87:06.33 ksoftirqd/4
>
>
> Please help to fix this problem
>
>> On 22 Apr 2020, at 15:55, Martin Zaharinov <micro...@gmail.com> wrote:
>>
>> Hello Qian and Greg
>> With latest 5.6.x kernel have problem with events_power_efficient 28488 root
>> 28 0 0 0 0 R 95.5 0.0 101:38.19
>> kworker/2:1+events_power_efficient Process start to load machine after 3-4
>> hour and load not stop only reboot machine remove process . Server runing on
>> AMD EPIC CPU 2x 7301 32Gb Ram Have 2 x 10G card Intel when machine load over
>> 1G traffic machine locked and only restart fix problem to next load . After
>> move traffic and server stop load process still hear and load server ?
>> And after reboot process move to other core .
>>
>> Best Regards,
>> Martin
>
