Issue Update to 18.0.26 Segmentation Fault

[Vincent86]

Hi,
last weekend i have update my server to latest version Plesk 18.0.26. After update i receive many segmentation fault into log var/log/message and php and mysql stop working (in particular after 8/9 hours from server restart). It's a bug of this version? i have not change anything on my server after update.

 

[Brujo]

well what about a bit more details like OS .... any errors during update or in the logfiles? where are you find the segfault? otherwise I would say not a known issue at the moment

 

[Vincent86]

well what about a bit more details like OS .... any errors during update or in the logfiles? where are you find the segfault? otherwise I would say not a known issue at the moment

OS Centos 6.10 with latest kernel 4.19. No error during update and in logfiles. Before update, system works without problems (uptime +4 months).

This night i make a test on cpu, disk and ram to see if there is a hardware problem.

 

[Vincent86]

From Advanced Monitoring i see that this problem occurs when server reach a 16/17gb of memory occupied. It's possible see problem in graphic below.

i have a total of 32gb of memory.

 

[Brujo]

when you go in advanced monitoring to the service view which of the services consume up the memory with constantly growing? and would you like to share the segfault message..

 

[Vincent86]

service apache and php-fpm.
error message:
kernel: php-fpm[27940]: segfault at 44 ip 00000000005fc8d6 sp 00007ffdfb886c20 error 4 in php-fpm[400000+3b0000]
kernel: php-cgi[28535]: segfault at 7f626819de48 ip 0000000000650e53 sp 00007ffc9889bc40 error 4 in php-cgi[400000+3a1000]
kernel: php-fpm[29943]: segfault at 7fe2b1c00000 ip 000000000064e718 sp 00007ffdfb887530 error 4 in php-fpm[400000+3b0000]

 

[Vincent86]

Hi, i have new important update. I have execute a memtest and result, after only 5%, is: Test FAILURE return code : 9

I think that there is a problem with ram.