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Segfault occurs on masvc process and McAfee Agent services are stopped on Linux systems
Technical Articles ID:   KB91265
Last Modified:  5/14/2019


McAfee Agent (MA) 5.6.0, 5.5.x, 5.0.x


At random times, a segfault occurs on the McAfee Agent service masvc.

Messages log (/var/log/) records the following error:

<computer_name> kernel: masvc[7690]: segfault at 78 ip 00007fd6ed8c4041 sp 00007ffdf4ef4700 error 4 in libuv.so.0.10[7fd6ed8bb000+24000]

Masvc_<computer_name>.log records the following error:

NOTE: Errors are only seen when logging is set to detailed logging in the McAfee Agent policy before debug messages appear in the masvc log.
594 (3011.3011) icmp.Debug: echo pkg send to repository <server_name>/<2001:480:10:16::11> failed, lets try one more time.


This issue can occur if the system does not have IPv6 enabled and McAfee Agent tries to create an IPv6 socket when a name resolution for an IPv6 repository is performed.


This issue is resolved with McAfee Agent 5.6.1.

Issue resolutions in updates and major releases are cumulative; Technical Support recommends that you install the latest version. To find the most recent release for your product, visit the Product Downloads site at http://www.mcafee.com/us/downloads/downloads.aspx.

McAfee product software, upgrades, maintenance releases, and documentation are available from the Product Downloads site at: http://www.mcafee.com/us/downloads/downloads.aspx.

NOTE: You need a valid Grant Number for access. KB56057 provides additional information about the Product Downloads site, and alternate locations for some products.


Restart all McAfee Agent services using the following command:
/etc/init.d/ma start

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