![]() ![]() Perhaps the next week should be dedicated to looking for older AMD EPYC “Rome” systems and seeing if any have had >900 day uptime. If you are the type of admin that has a server up for around three years, then this might impact you. Others are going to think this bug is a major pain to track and deal with. Then again, a number of our readers are going to think this is silly with regular security patches. If a typical server lifecycle is 5 years these days, then it means that one might need to do a minimum of a single reboot over its lifetime to avoid this bug, so long as the single reboot happens between days 9. The reason that the system had such high uptime is that it was part of a lab project that was outside our normal management tools and we forgot it was there apparently. We checked the STH lab and it appears as though we actually had a HPE AMD EPYC 7002 Rome system that we forgot about hit 2 years and 261 days or 991 days total uptime running Proxmox VE before the system was decommissioned. At the same time, this is a fairly big deal since the remedy is effectively rebooting a system. ( Source: AMD Revision Guide for AMD Family 17h Models 30h-3Fh Processors)įor most of our readers, machines will be rebooted once every so often for things like security patches or other maintenance windows. The time of failure may vary depending on the spread spectrum and REFCLK frequency.Įither disable CC6 or reboot system before the projected time of failure. This is not just speculation, instead, this is an official AMD Errata 1474 in 56323-PUB_1.01.Ī core will fail to exit CC6 after about 1044 days after the last system reset. AMD EPYC 7002 Rome CPUs Hang After Less Than 3 Years of Uptime While there are many bugs in processors given their complexity, this one is particularly interesting. I have a Rift S that I've been using no problem for weeks now, but today it's just stopped working and the Radeon app is telling me that 'The system has detected a link failure and cannot set the requested resolution and refresh rate. Valid values are 2 or 4.Thanks to a reader that sent in this Reddit post we were alerted that the AMD EPYC 7002 “Rome” series core can hang after just under 3 years of uptime, or around 1044 days. If using the DataSource interface, specify the type of connectivity through the driverType property URL format for IBM Data URL format for IBM Data Server Driver for JDBC and SQLJ type 2 connectivity 2) A monitor that connects using a Display Port consumes more power than a regular monitor connected to just a DVI or VGA port. Inspect the cable for any frays or chipped parts. URL format for IBM Data Server Driver for JDBC and SQLJ type 4 connectivity Make sure that you are using a compatible Display Port cable from its original manufacturer to ensure that this is not the cause of the error. If using the DriverManager interface, specify the type of connectivity through the URL. Forcing edid (This is most likely when your monitor failed to be up due to. The Data Server Driver for Type 4 connection does nott require the use of the native DB2 libraries. Check DisplayPort Cable If the DisplayPort cable connection is improper. A 32-bit JVM can only load the 32-bit DB2 native libraries and a 64-bit JVM can only load the 64-bit DB2 native libraries.Įnsure LIB environment variable references the correct library path for the JVM.Īssociated libraries (*.lib) are located in:Įnsure LIBPATH (AIX) or LD_LIBRARY_PATH (Linux/Unix) references the correct library path.Īs a workaround when unable to meet the above requirements, consider upgrading the application to use a Type 4 (TCP/IP) JDBC connection. The JVM used for the application environment must load the correct library, depending on its bit type (32-bit or 64-bit). If the above requirement has been met and yet continue failing at loading the native db2 library then check that library path is being set correctly. The bitnes of the remote database instance does not matter, only that of which is configured in the client application environment.Įxample, if install the IBM Data Server Driver for JDBC and SQLJ on a Windows 64-bit operating system then one cannot use IBM Data Server Driver for JDBC and SQLJ type 2 connectivity to connect to a DB2 Database for Linux, UNIX, and Windows instance from a 32-bit Java application. So a 32bit java application using type 2 connectivity can only work with a 32bit DB2 client (or server) instance and a 64bit java application using type 2 connectivity can only work with a 64bit DB2 client (or server) instance for connectivity to a remote (or local) database. Type 2 connectivity requires a DB2 client (or server) installation and has a restriction in that the "bitness" of the java application must match with the DB2 client ( or server) instance. The IBM® Data Server Driver for JDBC and SQLJ supports two types of connectivity: type 2 connectivity and type 4 connectivity. ![]()
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