GL-AR750S memory leak?

manderss99 · 2018-09-12T04:23:51.625Z

Hi,
had the 750S slate on during the night and after a few hours of uptime without any activity the free memory is low. It seems the /www/api processes consumes lot of memory.

I’m running the 0906 3.0.3 testing version.

after boot:
root@GL-AR750S:~# free -h
total used free shared buffers cached
Mem: 124608 61892 62716 960 8688 23232
-/+ buffers/cache: 29972 94636
Swap: 0 0 0

after 10 hours of inactivity:
root@GL-AR750S:~# free -h
total used free shared buffers cached
Mem: 124608 95920 28688 960 8688 23232
-/+ buffers/cache: 64000 60608
Swap: 0 0 0

alzhao · 2018-09-12T04:34:58.709Z

30MB is gone? I suspect that it does has leaks but they is too much. Are you keep the UI open?

manderss99 · 2018-09-12T04:39:23.280Z

I have a firefox tab with the ui open, but its been idling while I sleep.
Once also had the ui crash after long idle period.

kyson-lok · 2018-09-12T13:49:56.262Z

Yup, the api process will consume lots of memory, as it loads all dynamic library to memory, it will account for 2%.

For your screenshot, it does have the memory leak.

kyson-lok · 2018-09-13T03:19:13.064Z

@manderss99 Do you insert 4G modem?

manderss99 · 2018-09-13T04:50:44.856Z

yes, my huawei e3372 was connected, it connects as tethered

manderss99 · 2018-09-13T05:00:05.270Z

as an experiment I closed down all browsers and reboot and just let it sit idling.
Now it fared much better, memory went from 96m free to 87mb after 23h.

root@GL-AR750S:~# free -h
total used free shared buffers cached
Mem: 124608 63380 61228 384 8632 17652
-/+ buffers/cache: 37096 87512
Swap: 0 0 0
root@GL-AR750S:~# uptime
06:42:53 up 23:26, load average: 0.29, 0.25, 0.25

kyson-lok · 2018-09-13T05:40:21.602Z

If you connect modem, it does memory leak. We have fixed it. Will upload it into testing folder.

manderss99 · 2018-09-13T18:37:53.680Z

Updated tp latest test version (13/9) but there still is a problem
its been sitting idle with a ff browser tab open to router.

root@GL-AR750S:~# free -h
total used free shared buffers cached
Mem: 124608 90040 34568 1436 9832 34776
-/+ buffers/cache: 45432 79176
Swap: 0 0 0
root@GL-AR750S:~#
root@GL-AR750S:~# uptime
20:33:46 up 7:10, load average: 0.88, 0.71, 0.76

manderss99 · 2018-09-15T10:56:10.377Z

from my testing it seems to leak if I leave a firefox tab which displays router home page open.

If I close the tab it seems to be stable in memory consumtion.

running 0914 testing version.

kyson-lok · 2018-09-16T07:38:54.730Z

Thanks, we will investigate.

manderss99 · 2018-09-27T03:17:12.026Z

0926 testing version still leaks

37989×731 129 KB

alzhao · 2018-09-27T08:51:17.841Z

Seems the memory leak is from modem module. We are working on the modem module in the following two weeks.

manderss99 · 2018-09-27T08:55:38.620Z

I have the Huawei E3372 which connects as tethered but maybe that uses the modem module anyway?

kyson-lok · 2018-09-27T15:12:47.401Z

We found one memory leak on Tethering mode, but still debug and test it. Please wait.