Memory leak after upgrading to the latest firmware version for the GS1900-24E?

Gilad

4 days ago I've updated to the latest firmware version (2.60(AAHK.1)C0) for the GS1900-24E switch.
Seems like there is a serious memory leak... Attach is the memory usage graph for the last 3 months.

Zyxel_Derrick

Hi @Gilad

Could you provide tech support to us so we can check it?
If you have a privacy concern, you can PM me the tech support.
You can download tech support on Maintenance > Configuration > Content > Tech Support
About the attached graph, may I know is it a monitor software?
Thanks for your cooperation

Best regards,
Zyxel_Derrick

Gilad

Can't post this file, it contain too much private infomation about the network...
attached is another graph from today, I'm using SNMP and LibreNMS software to monitor the memory usage.
The switch restarted itself on Friday evening, if it happens again I'll just downgrade the firmware back to version 2.50.

Zyxel_Derrick

Hi @Gilad

May I know what OIDs you are polling and the polling interval?
Also, may I know if you could provide the information of "Process Memory" in the tech support to us so we can check it?
Thanks

Best regards,
Zyxel_Derrick

Gilad

No sure which OID it's using, I'll try to find out.

'Process Memory' section from 'Tech Support':

------------------ Process Memory ------------------

           total(KB)     used(KB)     free(KB)   shared(KB)   buffer(KB)    cache(KB)

--------------------+------------+------------+------------+------------+------------

Mem:           62416        60924         1492            0         2364        24384

-/+ buffers/cache:          34176        28240

Swap:              0            0            0

  PID    MEM(KB) COMMAND

    1        276 init

    2          0 ksoftirqd/0

    3          0 events/0

    4          0 khelper

    5          0 kthread

    6          0 kblockd/0

    7          0 pdflush

    8          0 pdflush

    9          0 kswapd0

   10          0 aio/0

   11          0 mtdblockd

   24          0 loop0

   30          0 jffs2_gcd_mtd3

   33          0 jffs2_gcd_mtd4

   44          0 waMon 500

   45          0 waMon 1000

   57          0 SCHED Thread

   58          0 LinkMonIsrThrea

   59          0 Port Monitor Th

   60          0 Port Security T

   61          0 Borad Monitor T

   70          0 STP RX Thread

   71          0 MSTP FSM Thread

   72          0 MSTP Routine Th

   73          0 MSTP Tick Threa

   76          0 LACP RX Thread

   79          0 IGMP RX Thread

   82          0 DOT1X RX Thread

   83          0 DOT1X RADIUS RX

   84          0 DOT1X ARP RX Th

   87          0 Voice VLAN Time

   90          0 LLDP RX Thread

   91          0 TX Thread

   92          0 Timer Thread

   95          0 RLDP RX Thread

   96          0 RLDP TX Thread

   97          0 RLDP Enable Thr

  150        300 syslogd

  153       3616 snmpd

  154       3616 snmpd

  155       3616 snmpd

  157       1116 zon

  163        224 inetd

  164       1232 polld

  165        212 klogd

  166       1184 timed

  173       1228 ksid

  179        284 sh

  180        300 sh

  182       2616 cli

  186       1628 boa

  187        936 boa

 2222       1228 ksid

 3782       2320 dispatcher.cgi

Gilad

This is the log from 'Tech Support' when the switch restarted:

5;Sep 03 2020 03:15:45;%Interface-5: Port 6 link up

5;Sep 04 2020 01:02:15;%Interface-5: Port 6 link down

5;Sep 04 2020 01:02:32;%Interface-5: Port 6 link up

5;Sep 04 2020 01:02:35;%Interface-5: Port 6 link down

5;Sep 04 2020 01:02:37;%Interface-5: Port 6 link up

====== [3: Kernel Log]

<0>Kernel panic - not syncing: out of memory. panic_on_oom is selected

<4>

<4> Abnormal reboot [0x32c55080]

Zyxel_Derrick

Hi @Gilad

We would like to reproduce the issue
Therefore, besides the OIDS you are polling, we would like to ask again that could you provide tech support to us by "private message" so we can try to find out the root cause?
Or, could you remove the private part and send the tech support to us by "private message"?
Thanks

Best regards,
Zyxel_Derrick

Gilad

Hi Derrick, I sent you the tech-support file by private message.

Zyxel_Derrick

Hi @Gilad

Thanks for providing tech support to us
We will try to reproduce the issue and if there is any update will let you know asap
Thanks

Best regards,
Zyxel_Derrick

Gilad

Thanks you Derrick.

Gilad

CPU and memory usage in the last 3 days. Seems like the GS1900-24E SNMP process can't even return the values... I wanted to generate another tech-support file, but I can't even access the web GUI. Going back to firmware version 2.50.