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--- litespeed_wiki:php:503-errors [2018/11/06 14:27]
Jackson Zhang [CloudLinux Limits Reached]
+++ litespeed_wiki:php:503-errors [2018/11/19 15:28]
Lisa Clarke [CloudLinux Imunify360 error] Proofreading
@@ Line 347: / Line 347: @@
 After (re)installation of LiteMage Cache extension in Magento Connect manager or enable other modules in Magento 2, Magento site may be placed in maintenancence mode and couldn't be accessed and may give 503 errors.  Please refer [[litespeed_wiki:cache:litemage:troubleshooting:connect-cache-session-cleaning-error|this]] for details.
+==== CloudLinux Imunify360 error ====
+Check ''stderr.log''. It shows:
+<code>
+  *** Error in 'lsphp:/home/ukrainia/public_html/index.php': malloc(): memory corruption (fast): 0x00007fa380d45e40 ***
+  ======= Backtrace: =========
+  /lib64/libc.so.6(+0x7f574)[0x7fa37c07f574]
+  /lib64/libc.so.6(+0x82c90)[0x7fa37c082c90]
+  /lib64/libc.so.6(__libc_malloc+0x4c)[0x7fa37c0857dc]
+  /opt/cpanel/ea-php54/root/usr/lib64/php/modules/i360.so(+0xb80b)[0x7fa375fbe80b]
+  /opt/cpanel/ea-php54/root/usr/lib64/php/modules/i360.so(map_increment_int_+0xa2)[0x7fa375fbeaa2]
+</code>
+If you try the following:
+**/opt/cpanel/ea-php54/root/usr/lib64/php/modules>** ''mkdir backup''
+**/opt/cpanel/ea-php54/root/usr/lib64/php/modules>** ''mv i360.so backup/''
+**/opt/cpanel/ea-php54/root/usr/lib64/php/modules>** ''ls -l i360.so backup/''
+You will get this result:
+  ls: cannot access i360.so: No such file or directory
+  backup/:
+  total 88
+  -rwxr-xr-x 1 root root 86568 Nov 15 12:37 i360.so
+The issue is fixed by disabling CloudLinux's ''i360.so''. This is a CloudLinux bug. Please be aware that it may have been fixed by the CloudLinux team by the time you read this wiki, but it was a cause of 503 errors at one time.
 ===== Advanced Troubleshooting Guide =====