ERROR [file:lld_item.c,line:856] Something impossible has just happened.

[fabio.grasso]

Hello,
I've upgraded from 3.4.15 to 4.0.2. The upgrade process was fine and I had no problems.

After start the server I see a lot of errors like this in my log:

[FONT=arial]zabbix_server [11364]: ERROR [file:lld_item.c,line:856] Something impossible has just happened.
 11364:20181210:123048.043 === Backtrace: ===
 11364:20181210:123048.043 12: /usr/sbin/zabbix_server: poller #8 [got 6 values in 0.009443 sec, getting values](zbx_backtrace+0x35) [0x55b61f6584c5]
 11364:20181210:123048.043 11: /usr/sbin/zabbix_server: poller #8 [got 6 values in 0.009443 sec, getting values](+0x155b8a) [0x55b61f6bcb8a]
 11364:20181210:123048.043 10: /usr/sbin/zabbix_server: poller #8 [got 6 values in 0.009443 sec, getting values](lld_update_items+0x1f5) [0x55b61f6c86c4]
 11364:20181210:123048.043 9: /usr/sbin/zabbix_server: poller #8 [got 6 values in 0.009443 sec, getting values](lld_process_discovery_rule+0x471) [0x55b61f6b9db5]
 11364:20181210:123048.043 8: /usr/sbin/zabbix_server: poller #8 [got 6 values in 0.009443 sec, getting values](zbx_preprocess_item_value+0x94) [0x55b61f5f4293]
 11364:20181210:123048.043 7: /usr/sbin/zabbix_server: poller #8 [got 6 values in 0.009443 sec, getting values](+0x4d188) [0x55b61f5b4188]
 11364:20181210:123048.043 6: /usr/sbin/zabbix_server: poller #8 [got 6 values in 0.009443 sec, getting values](poller_thread+0x1b7) [0x55b61f5b4ff9]
 11364:20181210:123048.043 5: /usr/sbin/zabbix_server: poller #8 [got 6 values in 0.009443 sec, getting values](zbx_thread_start+0x37) [0x55b61f665af8]
 11364:20181210:123048.044 4: /usr/sbin/zabbix_server: poller #8 [got 6 values in 0.009443 sec, getting values](MAIN_ZABBIX_ENTRY+0x9b3) [0x55b61f59fde8]
 11364:20181210:123048.044 3: /usr/sbin/zabbix_server: poller #8 [got 6 values in 0.009443 sec, getting values](daemon_start+0x31b) [0x55b61f657d16]
 11364:20181210:123048.044 2: /usr/sbin/zabbix_server: poller #8 [got 6 values in 0.009443 sec, getting values](main+0x312) [0x55b61f59f433]
 11364:20181210:123048.044 1: /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fda878a53d5]
 11364:20181210:123048.044 0: /usr/sbin/zabbix_server: poller #8 [got 6 values in 0.009443 [/FONT]

Do you have any suggestion on what is it and how to fix?

My OS is 7.6.1810, kernel version is 3.10.0-957.1.3.el7.x86_64
I've updated all packages to date and Zabbix setup was made from the official repo



Thanks

[andris]

Thanks, Fabio, for reporting!
I created a bug report https://support.zabbix.com/browse/ZBX-15299 for this.

[andris]

Hi, Fabio!
Could you register as a watcher in https://support.zabbix.com/browse/ZBX-15299?
Developers are looking into it and there is a question for you.

Andris