HDDs Used: 8x HGST Ultrastar HUC101212CSS600 0B25168 1. Error class. starts. 270-iLO FW Communication Issue. 2. The power domains are respectively connected to the power lines. Unlike volatile memory, NVM does not require its memory data to be periodically refreshed. Configuration settings restored to defaults. com U pcoming advances in Non-Volatile Memory (NVM) technologies will blur the line between storage and memory, creating a disruptive change to the way software is written. This is possibly a software problem. Because the two systems provide quite different functionalities and require different kinds of data, it is necessary to maintain data. Google Scholar Digital Library; T. NVMe SSDs are much faster than SSDs using older but still widely used storage interfaces like SATA and SAS. The memory option is not installed in a supported configuration. Always store data in some kind of protocol , like START_BYTE, Total bytes to write, data , END BYTE. The first difference is speed and performance. This guide details how to access and use the Unified Extensible Firmware Interface (UEFI) that is embedded in the system ROM of all UEFI-based ProLiant Gen9 servers and Synergy compute modules. In this article. This discussion is in the context of how the latest versions of the Linux and Windows OSs support NVM [3, 1, 52, 48]. That is , the the memory for this variable has got released already. 0; plus support for 2x SFF front drives or 2 NVME front drives (826687-B21, riser required) and ODD support (Not included); and can only be located in Box1 in either an 8 SFF or 8+8 SFF model. Action: Restore configuration settings. Page 53: Invalid Lockstep Memory Configuration 209-RAID Memory Configuration - Memory Sizes on boards X and Y do not match Possible Cause: The overall size of two boards participating in a RAID does not match. Heap Corruption Detected: after Normal block (#126) at 0x004cF6c0 CRT detected that the application wrote to memory after end of heap bugger. The aim of this article is to provide a software method that explains how to deal with corruption of memory data sets stored in non-volatile devices, such as small. Cause A failure has been detected in one of the following: • Flash memory • Battery hardware Action Contact Hewlett Packard Enterprise technical support. The Config_init() function showed how to deal with data corruption at startup, it suggested restoring the whole configuration to default values. The controller shows up in ILO System Information:Device Inventory but is not detected in SSA so I cant setup the array. Enabled —The server can access the internal SD card slot. The HPE ProLiant DL365 Gen10 Plus Server is redefining price/performance with the new math for virtualized compute. This issue is timing-related and is extremely intermittent. Change the “Load Image” setting to “On Power Up” and then press the “Store” button to transfer Controller memory to Non-Volatile. Memory-checking tools are for memory-unsafe languages such as C and C++, not for Java, Python, and similar memory-safe languages. 3 Proposed Interface. Volatile memory has a huge impact on the system’s performance. Update your SATA or chipset drivers as well. Update your SATA or chipset drivers as well. heap corruption detected after normal block (#174) at 0x007D7A48 CRT detected that the application wrote to memory end of heap buffer c++;. Click "Next" and wait for the scanning. Chicago, IL 11 days ago. 2 drive is not inserted correctly. Isolating and minimizing the. 273. 由于以下原因，在写入到 NVRAM 时服务器中断： 突然断电; 按电源按钮; 按虚拟电源按钮. Greetings, I've recently adquired an HPE Microserver Gen10 Plus (which I have running ESXi7 to host a small lab) with the default 16GB of RAM and… Advertisement CoinsThe volatile memory needs continuous power or electricity to store the data, whereas non-volatile memory does not require electrical power to preserve the data. Power-fail interrupt. Researchers at security vendor Triumfant have. 0, NET2, BFE and GOSIP compliant. exe to look for memory issues. 781 Not enough memory to store new arb waveform; use DATA:DELETE. Reset any configuration settings that differ from the default settings. In some embodiments, non-volatile memory system 100 includes a single channel between Controller 122 and non-volatile memory die 108, the subject matter described herein is not limited to having a single memory channel. The storage process and the protection of the cell fromWhat HPE ProLiant DL380 Gen10 memory speed is supported? DDR4-2400, DDR4-2666, DDR4-2933 and DDR4-3200. Contact HP if issue persists. Volatile Memory is defined as a type of storage in which the contents remain saved and unerased until the device has a power supply or until the device is not shut down. Threats include any threat of suicide, violence, or harm to another. It needs to be replaced with a new one from the very same type. Arguments: Arg1: 0000000000000011, Type of corruption detected. . Intel® Ethernet Converged Network Adapter X550-T2 - Download supporting resources inclusive drivers, software, bios, and firmware updates. If an asset or ownership tag is set, select the Security menu and scroll down to the Utilities menu. Correctives. 2. No. To address this problem, a fixed-length binary code called a CRC value is calculated on the configuration data to detect whether they have been corrupted or not. In development. To do this you could: Run with a memory strategy that indicates that memory is to be validated each time an allocation or free operation occurs; see the memory_strategy and. A NVDIMM (pronounced "en-vee-dimm") or non-volatile DIMM is a type of persistent random-access memory for computers using widely used DIMM form-factors. Non-volatile memory (NVM)1 offers an intriguing blend of the two storage mediums. ECC memory is a type of system memory that can detect and correct common kinds of internal data corruption. So here's the deal. (Error: [500: Internal Server Error]) Automatic backup and restore. preset levels of charge, and the readout circuitry must translate the detected level into a 2 - bit digital format. Configuration settings restored. Researchers create non-volatile computer. Connect and share knowledge within a single location that is structured and easy to search. NVMe was created by a consortium of large IT providers in 2008 to provide improved speed and performance. Intel® Network Adapter Driver for Windows Server 2022*. This component provides updated iLO firmware that can be installed directly on supported Linux Operating Systems. Before writting to external / Internal memory always check POWER Moniter registers/ ADC. Here, Song et al. Component identification. Action: Restore desired configuration settings. by rene » Sat Nov 02, 2019 12:05 am. com. 784 Name of source arb waveform for copy must be VOLATILEredundant Rom detected - This system contains a valid backup system rom hpe smartmemory authenticaded in all populated dimm slots. and data transfer rates with PCIe Gen4 capabilities. E 1100. e. Find and right-click on your hard drive, and select "Format". In memory-unsafe languages, it is easy to mistakenly write past the end of a memory buffer or read memory after it has been freed. Teams. Configuration settings restored to defaults. 267-IMPORTANT: Default configuration settings have been restored. Please check the Document ID or your account permissions. There is a possibility that this is caused by memory corruption. Memory komputer bisa diibaratkan sebagai papan tulis, dimana setiap orang yang masuk kedalam ruangan bisa membaca dan memanfaatkan data yang ada dengan tanpa merubah susunan yang tersaji. Bought both from Amazon - The drive was detected by the ESXi host without installing any drivers and I was able to create a RDM to add it to a VM without any issues. 11. Currently it has one stick of " HPE 16GB (1 x 16GB) dual rank x 8 DDR4-2666 CAS-19-19-19 unbuffered standard memory kit - 879507-B21" and I would like to bump it up to 32GB. Note that --malloc-fill does not affect a block of memory when it is used as argument to client requests VALGRIND_MEMPOOL_ALLOC or. It contains the NVM update utility, configuration file, updated NVM binaries, and required driver files. Volatile Memory is defined as a type of storage in which the contents remain saved and unerased until the device has a power supply or until the device is not shut down. I am Dave, I will help you with this. generation of non-volatile memory is designed, manufactured and tested to meet the stringent requirements of today and tomorrow. Non-volatile memory keeps the stored information even when the power is off. NVMe drives are much, much faster than SATA drives that have been around for years. m. com. As said, normally there is a Raid controller in servers that the drives are connected to. It is commonly used for secondary storage or long-term consistent storage. The power lines receive a power source voltage. g. Join HPE President and CEO Antonio Neri and influential industry leaders to discover the power of AI when it’s edge to cloud. Non-volatile memory (NVM) Non-volatile memory is a very advanced storage technology. These memories hold the most frequently used data- and any user can access them quickly. Cause. Look for the SKU in the list that appears and post it here in your next reply. 267-IMPORTANT: Default configuration settings have been restored. Storage devices, such as HDDs and SSDs, use. " and have no idea what this means or if it is related (I never saw this on 6. If enabled, Secure Boot security settings may be lost. NV or non-volatile memory is memory or storage saved regardless of whether the computer has power. You can determine such locations analytically or experimentally. What’s New · Synergy 480 Gen10 Plus designed to provide increased performance and capacity. for HPE ProLiant DL, ML and Apollo Servers. Configuration settings restored to defaults. Volatile Memory. The amount of nonvolatile memory present in the system depends upon the system configuration. Action: If many parity errors occurred, you may need to replace the array accelerator board. Click on the system information app that appears. HPE NVDIMMs are the newest non-volatile memory offering in the HPE Persistent Memory product category. An NVMe solid-state drive, or SSD, is a high-speed storage device that implements the NVMe specification, which allows SSDs to use the PCIe bus to read and write data from and to the SSD. PVLDB, 7(5):413--424, 2014. Volatile memory is typically faster than non-volatile memory, as it is used to store data that the device is currently using or processing. – Dan Is Fiddling By Firelight. 10. 1. Recommendation was to update ESXi from 6. What’s New · Synergy 480 Gen10 Plus designed to provide increased performance and capacity. Creo que es este mensaje el que vi. t. Reverting to a snapshot probably won't resolve the problem if there is some latent. A pointer is a particular type of variable that stores the memory address of. You need to make a bootable USB of memtest86. Server crash - POST Error: 266-Non-Volatile Memory Corruption Detected. Free Ground. The system is being default configured. Only reading and writing data to non-volatile memory requires power. Non-volatile memory (NVM) is a type of memory that retains stored data after the power is turned off. 271-Processor X, DIMM Y could not be authenticated. Memory might be stored on the system-on-a-chip for the embedded device, or it might be separate. I have tried SSA from the SPP iso and the stand alone SSA with the same results. Follow the steps below to run Windows Memory Diagnostic: First, press the Windows + R keys to open Run on your computer. It does mean that memory was already corrupt, and that you should look to previous manipulations of memory (in possibly other areas of the code) to find the place it happens. In this work, emerging non-volatile memory technologies including PCM, ReRAM, Fe-FET, and MRAM are reviewed for their potentials to overcome the memory wall challenge in a modern computing system. NVMe drives have been able to utilize 4 PCIe lanes, meaning a theoretical max speed of 3. Troubleshooting. The write time checker attempts to prevent damage before the it's written to the disk by going RO. Caddies: Third party with LED IC Chip. Intel® Optane™ persistent memory is a revolutionary tier of non-volatile memory that sits between memory and storage to provide large, affordable memory capacity that is comparable to DRAM performance. This may be caused by some incorrect usage of the std::tr1::shared_ptr but I cannot determine what I am doing wrong with them. 2 480GB drives included designed for VMware HW RAID Requirements - operates with most of. ECC memory is a type of system memory that can detect and correct common kinds of internal data corruption. 0. c. Non Volatile Memory Subsystem Key Features Customer Benefits Highlights The NVM subsystem comprises of Program and Data Flash Memory, Data Memory Unit (DMU), Program Flash Interface (PFI) and Flash Standard Interface (FSI). . That stops the kernel from checking for corrupted low memory, but, since the check. Non-Volatile Memory corruption detected. Step 3. Note that ECC memory. 271-Processor X, DIMM Y could not be authenticated. shut down the server and disconnect the power plugs; change position 6 back to “off” connect the power plugs and power up the server0. Subsequent code's assumption is the new x and y values, and this results in fairly obvious memory corruption. Wait until the process finishes. 0 。 NVMは不揮発性メモリ (Non-Volatile Memory) の頭文字である。Using the Memory Corruption Detection tab on the setting dialog: Select the Detect Memory Corruption check box. If the issue persists, create an HPE Support Case. have developed an electric. Connect each power cord to the server. exe and click OK. 2. When I first began to explore this topic on the Windows OS I was immediately struck by the surprising shortage of modern and publicly available information dedicated to it. I can confirm, the same for 6. Volatile Memory. Teams. Then select “Apply” and “OK”. sf. Non-volatile memory, on the other hand, is slower but is used to store data that needs to be retained even when the device is powered off. A novel multitime programmable memory cell using high-voltage NMOS has fewer transistors and terminals, which reduces the area consumption and simplifies the implementation of memory’s external circuit. Tu cuenta también te permite conectarte con el soporte HP más rápido, acceder a un panel personal para administrar todos tus dispositivos en un solo lugar, ver información de garantía, estatus de caso y más. . This characteristic makes ROM an ideal choice for storing critical instructions that need to be available every time the computer. Please see Memory Speed Tables for memory speed changes based on processors selected. It will also give us an idea of what the difference is between the on-disk state in teh metadump and the in-memory state when teh corruption is detected. Overview. <パスheap corruption detected"エラーの原因と対処法最近、典型的なクラスの動的メモリ割り当ての問題に遭遇し、ウェブで見つけた回答から、通常は新しいアプリケーションからのメモリオーバーフローであると結論付けました。 newで特定のサイズのメモリを要求するが、後からコピーしたものが. It details how the investigation should be performed and highlights the relevant information that can be extracted from storage. The most likely causes of memory corruption are programming errors (software bugs). A variant of charge storage memory referred to as Flash memory is widely used in. The page should refresh to display the "DRIVERS AND SOFTWARE" tab and the components that support the selected product. Data Retention. Cause . See the readme file for more information, such as limitations and prerequisites, UEFI requirements. Currently it has one stick of " HPE 16GB (1 x 16GB) dual rank x 8 DDR4-2666 CAS-19-19-19 unbuffered standard memory kit - 879507-B21" and I would like to bump it up to 32GB. During the reboot, press esc while the "Press the ESC key for Startup Menu" message is displayed at the bottom of the screen. 0---the current generation of the PCI Express standard--- has a maximum speed transfer of 985 megabytes per second (Mbps) on each lane. Disabled —The server cannot access the internal SD card slot. The design of an embedded system with nonvolatile memory is, therefore, an exercise in minimizing the occurrence and impact of data corruption. Non-volatile memory (NVMe) is a semiconductor technology that does not require a continuous power supply to retain the data or program code stored in a computing device. I have a HPE ProLiant DL20 Gen10 server with Windows Server 2016 used for virtualization at my work place. 273. For more information, see "Accessing Hewlett Packard Enterprise support. If the NVME SSD is still not detected, try to fix the problem with the hardware and devices troubleshooter. راه حل دیگر برای رفع خطای Non-Volatile Memory Corruption Detected این است که سرور را به طور کامل خاموش کرده و کابل برق را از پاور سرور جدا نموده ، سپس با استفاده از یک پیچ گوشتی باطری بایوس سرور را خارج کرده و. 267-IMPORTANT: Default configuration settings have been restored. Any ideas? Whatever I have tried so far, keeps coming back to the same result. 266-Non-Volatile Memory Corruption Detected 提示信息 266-Non-Volatile Memory Corruption Detected. 0 Mass storage controller Non-Volatile memory controller: ADATA Technology Co. Connect each power cord to the power source. If the power supply to the device is turned off or interrupted the data is lost. 269-IMPORTANT: Default configuration settings have been restored. 269-IMPORTANT: Default configuration settings have been restored. experimentally study the effects of single- and double-bit errors in instruction set architecture registers and main memory using fault injection. Fixes 266-Non-Volatile Memory Corruption Detected 提示信息 266-Non-Volatile Memory Corruption Detected. The following tests, per JEDEC industry standard test specifications for non-volatile memory, guarantee 10 years of operation and data retention at 85°C. Saludos, Omar. NVM enables writing to the flash memories through a command sequencer and controls the flashHere follows an alternative answer to this memory corruption detected in low memory topic. Action. It does not use continuous power to keep the data or program files located on the. If an asset or ownership tag is set, select the Security menu and scroll down to the Utilities menu. See F-RAM . HPE ProLiant DL360 Gen10 Plus server with one Intel® Xeon® Scalable 4309Y processor, 1x 32 GB dual rank memory, HPE SR100i Gen10 Plus FIO Software RAID Controller, eight small form factor SAS/SATA drive bays, five standard fans, one HPE. 0 device's non-volatile memory. 1 Latency and bandwidth. Several factors distinguish data warehouses from operational databases. Non-Volatile Memory corruption detected. Non-Volatile Memory corruption detected - How to recover your HPE server settings? This document explains the causes and impacts of this error, and provides the. Consistent and durable data structures for non-volatile byte-addressable memory. Use the BIOS/Platform Configuration (RBSU) in the UEFI System Utilities to configure the memory mode. market for emergi ng nonvolatile random-ac cess memory. The aim of this article is to provide a software method that explains how to deal with corruption of memory data sets stored in non-volatile devices, such as small EEPROM or flash memories. NVMe SSDs are much faster than SSDs using older but still widely used storage interfaces like SATA and SAS. Number of times that write memory parity errors were detected during transfers to memory on the array accelerator board. Support Center. Aug 30, 2013 at 13:32. 2 (2017 21inch 4K - 1TB Fusion drive) - system. There are a number of possible uses for NVRAM in an embedded system: Storage of program code and constant data that is copied into RAM on start-up. Then click on the “Disable All” button. Contact HP if issue persists. Firmware - Lights-Out Management. I understand that you need to free memory whenever you use new operator, which I did and I am still getting problems. In volatile memory, processor has direct access to data. For the purposes of the Java programming language memory model, a single write to a non-volatile long or double value is treated as two separate writes: one to each 32-bit half. 10. You could also type system information in the saecrch box while logged into Windows. 267-IMPORTANT: Default configuration settings have been restored. Check any server LEDs that correspond to memory slots. It is commonly used for secondary storage or long-term consistent storage. Non-Volatile Memory corruption detected. This document provides detailed instructions and diagrams for hardware installation, cabling, and maintenance. If enable, Secure Boot securiy setting may be lost. Right-click on System Configuration and select “Run as administrator”. NAND flash SSDs have revolutionized the storage world in the last 10 years. 4. login to the ESXi host with an SSH session (you must enable SSH access), the user must be root. Non-volatile memory is a relatively slower form of memory. Non-volatile memory (NVM) is a type of computer memory that has the capability to hold saved data even if the power is turned off. ECC memory is a type of system memory that can detect and correct common kinds of internal data corruption. Always store data in some kind of protocol , like START_BYTE, Total bytes to write, data , END BYTE. rts. 269-IMPORTANT: Default configuration settings have been restored. It was announced in July 2015 and was available on the open market under the brand name Optane (Intel) from April 2017 to July 2022. if anyhow you data corrupts, END byte will also corrupt. Overview. When iLO goes through the initialization process, it backs up the configuration information stored in the battery-powered SRAM memory device to the nonvolatile flash memory (NAND). I've received this alert after hard resetting my server:. 270-iLO FW Communication Issue. The value entered was outside of the permissible value. Try running memtest86. It will find what problem you need to fix if your computer has. A simple corruption-protection method avoids locations that are likely to be corrupted. Overview. You probably always had the "Memory corruption detected" message; it's a sign of your BIOS scribbling over memory in the first 64K (see that "be30 phys" address) it didn't in fact reserve but is a warning only, more of use to BIOS developers than users. Configuration settings restored to defaults. Description. Non-Volatile Memory corruption detected. c. Non-volatile memory has a huge impact on a system’s storage capacity. The subthreshold swing and current-degradation behavior of the memory cell is improved for larger coupling ratio. 273. 00C08290: The non-volatile variable storage is about full. Hello @Septaped. On-node, non-volatile memory (NVRAM) is a game-changing technology that can remove many I/O and memory bottlenecks and provide a key enabler for exascale. The first thing to do is to check if the Pre-Boot System Assessment ( PSA) Diagnostics can run. . Synopsys Non-Volatile Memory (NVM) IP provides One-Time Programmable (OTP), Few-Time Programmable (FTP) and Multi-Time Programmable (MTP) NVM supporting 16 bits to 1 Mbit in standard CMOS, BCD, high voltage (HV), embedded flash, and specialty process technologies with no additional masks or. You need to make a bootable USB of memtest86. If you have a well-formatted makefile, you can use Parasoft Insure++ by setting your compiler command to insure: make CC=insure hello. Action. I have 'Kernel stack memory corruption detected' I hade a ' Kernel stack memory corruption detected ' restart problem in the past. @jhocking because no non-volatile technology of comparable performance is available. Component Properties. Software and configuration utilities. If enabled,Secure Boot security settings may be lost 故障原因 当以下操作之一向 NVRAM 进行写入时，某个服务器中断: 1、突然断电 2、按电源按钮 3、按 iLO 虚拟电源. Unlike volatile memory, NVM does not require its memory data to be periodically refreshed. 5. I'm trying to install 2 16gb memory modules on a HPE ProLiant 160 DL gen 10 but no matter what I try, I get this error: 209 - Unsupported DIMM Configuration Detected - Installed DIMM configuration does NOT support configured AMP Mode. 8GHz 8-core 1P 32GB-R S100i NC 8SFF 800W PS Server. The memory materials can significantly influence final system-level characteristics and chip performance. In this article, I will. Write-limited sorts and joins for persistent memory. Memory Corruption Detected (0x5e) RAM 2 4. Learn how to optimize your server performance and security with SUM. David T. Troubleshooting the processor; Uncorrectable machine check exception; Trusted Platform Module issues. x came along, and still hasn't been fixed in 2. Then, power on the server again. . Fig. 266- Non-Volatile Memory Corruption Detected. This can be useful when trying to shake out obscure memory corruption problems. The host system can specify to the. Carol Sliwa. The memory option installed is not supported in the current configuration. Windows Hardware Performance Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration. This component provides updated iLO firmware that can be installed directly on supported Linux Operating Systems. At first, conventional volatile (SRAM and DRAM) and non-volatile memories (floating-gate transistors and NAND/NOR-Flash) are introduced. A hard disk drive ( HDD ), hard disk, hard drive, or fixed disk, [b] is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or. -314,"Save/recall memory lost; memory corruption detected"-315,"Configuration memory lost"-315,"Configuration memory lost; due to firmware revision change". HPE DL38X/560/580/ML350 Gen10 P824i-p cable kit. The random access memory (RAM) family includes two important types—namely static RAM and dynamic RAM—that. Volatile vs. Use memory-allocation debugging tools like ElectricFence, dmalloc, etc - at minimum they can catch simple errors and most moderately-complex ones (overruns, underruns, even in some cases write (or read) after free), etc. Then click on the “Disable All” button. Johnson. This chapter gives an introduction into state-of-the-art memory devices. CRT detected that the application wrote to memory after end of heap buffer. There is no other way to generate an MCE. A reset signal is generated by using voltages which are detected from the power lines. 04. date=05/30/2018 time=23:32 description=POST Error: 266-Non-Volatile Memory Corruption Detected. It does not mean the call to malloc corrupted the memory. Q&A for work. Aug 30, 2013 at 11:30. 266- Non-Volatile Memory Corruption Detected. The answer is quite simple: the specification test conditions are much kinder to the part than the embedded system is. for some reason the program doesn't end correctly in the recursive function. Driver errors can result in crashes long after the errors are made. 2. Wang and R. Selecting a lower number causes checks to happen more often. 2TB 10K RPM SAS 6Gb/s 2. Volatile memory loses its content when the device loses power while the non-volatile type can maintain the stored information even when power is removed. Mitigation of Data Corruption. POST Error: 266-Non-Volatile Memory Corruption Detected. [1] Bit storage is based on a change of bulk. date=05/30/2018 time=23:32 description=POST Error: 266-Non-Volatile Memory Corruption Detected. 273. I checked your code and this is definitely a hardware problem with the memory / RAM module. Accelerator Parity Read Errors: X Description: Number of times that read memory parity errors were detected during transfers from memory on the array accelerator board. You need to allocate space for one more character. 0 device: No RSA Endorsement Key certificate found in TPM 2. Isolate and minimize the memory configuration. Using RSLogix 5000, download a program to the Controller, go online, and insure the Controller is in program mode. If the LEDs are off, check the power source. PCIe 3. Step 3. I was thinking of updating the BIOS but wanted to check around first as that type of thing is risky. We apologize for this inconvenience and are working quickly to resolve this issue. When iLO goes through the initialization process, it backs up the configuration information stored in the battery-powered SRAM memory device to the nonvolatile flash memory (NAND). Both of these programming languages have explicit memory management using pointer arithmetic. The main salient feature of the proposed interface is the definition of a non-volatile cache pinned set. With the computer powered off, hold down the Fn key and the power button simultaneously. System manufacturers use different types of non-volatile memory chips for a variety of purposes. After the component is installed, reboot the ESXi host for the updates to take effect. The memory option is not installed in a supported configuration. Maintenance switch detected in the ON position. 10. 30. . e. For a full list of meanings for memory type and stomp type, refer to the MEMORY section of mf. Volatile memory has a huge impact on the system’s performance. A timing issue in package cache management may result in a cache entry being reused or freed by one agent while still in use by another. Full size image.