Abstract: Tracking address ranges for computer memory errors including detecting, by memory logic, an error at a memory address, the memory address representing one or more memory cells at a physical location of computer memory; reporting, by the memory logic to memory firmware, the detected error including providing the memory firmware with the memory address; identifying, by the memory firmware, an address range affected by the detected error including scanning the computer memory in dependence upon the memory address; determining, by the memory firmware, a region size based on the address range affected by the detected error; and populating an entry in a mark table corresponding to the detected error, including populating a field specifying the region size and a field specifying a match address corresponding to the memory address.

Abstract: Methods for invasive debug of a processor without processor execution of instructions are disclosed. As a part of a method, a memory mapped I/O of the processor is accessed using a debug bus and an operation is initiated that causes a debug port to gain access to registers of the processor using the memory mapped I/O. The invasive debug of the processor is executed from the debug port via registers of the processor.

Abstract: Disclosed are some examples of systems, apparatus, methods and storage media for automated device management, and more specifically, for detecting exceptions in devices and facilitating workflows to resolve the exceptions. In one innovative aspect, a database system is configurable to maintain at least one knowledge database storing a plurality of prescriptions, each prescription defining a respective action-oriented workflow for one or more exceptions. The system is further configurable to receive device data associated with the devices, analyze the received device data, and detect occurrences of exceptions based on the analysis. The system is further configurable to determine whether the knowledge base includes a prescription for a detected exception, and responsive to a determination that the knowledge base includes a prescription for the detected exception, trigger a first workflow for remedying the detected exception based on the prescription.

Abstract: Disclosed herein are methods, systems, and articles associated with remediation execution. In embodiments, a set of policy test failures may be selected for remediation. The set of policy test failures may be associated with a computer network with a number of nodes. For each failure within the set of policy test failures, a remediation script may be obtained to remediate a corresponding policy test failure. The remediation scripts may be selectively provided to nodes that are affected by policy test failures, for execution by the nodes. A remediation script result for each remediation script executed may be received. Based upon the remediation script results, it may be determined whether or not execution of the remediation scripts was successful.

Abstract: In a fixing system, a first terminal device transmits information about a trouble in a target device to a server, receives information for restoration of the target device, and operates a measuring instrument for measurement on the target device to measure the state of the target device based on the information for restoration of the target device. The server receives the information about the trouble, and refers to a fixing know-how database to analyze the trouble. The fixing know-how database contains know-how information about fixing of the target device. The server selects information required for fixing from information for restoration specified based on a result of the analysis by a trouble analyzing unit so as to comply with a selection condition set in advance, and transmits the selected information to the first terminal device.

Abstract: The information processing apparatus includes a processor and components connected to the processor. In this processor, a failure occurring in any one of the processor and the components connected to the processor itself is recorded in a system space accessible in a system management mode, and an interrupt handler is notified of the occurrence of the failure by an interrupt. The program causes a management computer managing the information processing apparatus to execute shifting the processor to the system management mode, setting information indicating a pseudo failure in the system space, shifting the processor to a non system management mode from the system management mode after setting, and causing the processor to generate the interrupt corresponding to the pseudo failure.

Abstract: Implementations described and claimed herein provide systems and methods for prioritizing a support bundle. In one implementation, a fault indication specifying at least one fault of a storage device is generated. A request for support data for diagnosing a cause of the fault is received at the storage device. Low priority data for diagnosing the fault is identified from the support data. A prioritized support bundle is generated having a low priority bundle subset containing the low priority data and a high priority bundle subset containing remaining data in the support data for the storage device. The high priority bundle subset is sent to a diagnostic device over a network separately from the low priority bundle subset.

Abstract: A method is provided for channel encoding in a communication system using a Low-Density Parity Check (LDPC) code. The method includes grouping information bits into a plurality of groups, determining an order of the plurality of groups to be shortened, according to a code rate, determining a length of information bits to be obtained by shortening the plurality of groups, shortening the plurality of groups on a group basis in the determined order, based on the determined length of the information bits, and LDPC-encoding shortened information bits.

Abstract: A computing device includes an interface configured to interface and communicate with a dispersed storage network (DSN), a memory that stores operational instructions, and a processing module operably coupled to the interface and memory such that the processing module, when operable within the computing device based on the operational instructions, is configured to perform various operations. A computing device receives a data access request for an encoded data slice (EDS) associated with a data object. The computing device compares a slice name of the data access request with slice names stored within RAM. When the data access request slice name compares unfavorably with those stored slice names, the computing device transmits an empty data access response that includes no EDS to the other computing device without needing to access a hard disk drive (HDD) that stores EDSs. Alternatively, the computing device transmits a data access response that includes the EDS.

Abstract: Traditionally, setting a data breakpoint in a debugger for an execution environment that uses compacting garbage collection is ineffective as a compacting garbage collector moves data around in memory as part of its compaction process. Traditional debugging approaches such as tracing each insertion, etc. are impractical because of the quantity of operations encountered in a typical program. Described herein is a data breakpoint for a compacting garbage collection environment in which data breakpoints are disabled while the garbage collector is running, creating notifications for move operations, batching the notifications, retargeting data breakpoints and using the batched notifications to re-enable the disabled breakpoints.

Abstract: Example methods are described to provide fault tolerance for a container in a virtualized computing environment that includes a first virtual machine and a second virtual machine. The method may comprise detecting a failure at the first virtual machine. The container may be supported by the first virtual machine to run an application on a first operating system of the first virtual machine. The method may further comprise providing data relating to the container to the second virtual machine; and based on the data relating to the container, resuming the container in the second virtual machine to run the application on a second operating system of the second virtual machine.

Abstract: There is provided a computer-implemented method of testing an application. The method obtains first temporary test scripts for testing at least one test case of a first version of the application, and the first temporary test scripts are recorded with first mark data used for testing the first version of the application. The method obtains a first correspondence between the first mark data and test data. The method substitutes the test data for the first mark data in the first temporary test scripts based on the first correspondence to obtain first test scripts for testing the at least one test case of the first version of the application.

Abstract: Embodiments disclose techniques for scheduling test cases without regeneration to verify and validate a computing system. In one embodiment, a testing engine generates a test case for a plurality of processors. Each test case includes streams of instructions. The testing engine also allocates at least one cache line associated with the streams of instructions of the generated test case such that each of the plurality of processors accesses different memory locations within the at least one cache line. The testing engine further schedules the generated test case for execution by the plurality of processors to achieve at least a first test coverage among the plurality of processors. The testing engine further re-schedules the generated test case for re-execution by the plurality of processors to achieve at least a second test coverage among the plurality of processors.

Abstract: The storage system includes storage devices which have plural storage blocks. A first node with a first processor memory is configured to store first information which manages states of the storage blocks, and a second node including a second processor and memory is configured to store second information which manages the states of the storage blocks are included in the storage system to handle file operations. When a failure occurs on the second node, the first processor is configured to change the state of one or more storage blocks, previously reserved by the second node to be used for storing data by the second node, to one or more garbage blocks and perform garbage resolution processing thereon before becoming available for data storage. This process allows for rapid recovery of the filesystem as the entirety of the filesystem metadata need not be examined.

Abstract: A distributed database system may implement log-structured distributed storage using a single log sequence number space. A log for a data volume may be maintained in a log-structured distributed storage system. The log may be segmented across multiple protection groups according to a partitioning of user data for the data volume. Updates to the log may be assigned a log sequence number from a log sequence number space for the data volume. A protection group may be determined for an update according to which partition of user data space the update pertains. Metadata to be included with the log record may indicate a previous log sequence number of a log record maintained at the protection group. The log record may be sent to the protection group and identified as committed based on acknowledgments received from storage nodes implementing the protection group.

Abstract: A field device for determining or monitoring a process variable in automation technology, wherein the field device meets a safety standard, which is required in a predetermined safety-critical application, comprising a sensor, which works according to a defined measuring principle, and a control/evaluation unit, which processes and evaluates measurement data delivered by the sensor along at least three redundantly and/or diversely designed measuring channels, and wherein there is associated with the control/evaluation unit a voter, which is composed of a plurality of components, which are at least partially double redundantly designed.

Abstract: An information processing device includes at least a first storage device and a second storage device each to store a boot program, a first processor to read the boot program from the first storage device to boot the information processing device from the first storage device, and a second processor connected to each of the first storage device and the second storage device and the first processor. The second processor detects a completion or a failure of the boot from the first storage device, and when detecting the failure of the boot, switches a storage device to be used for booting from the first storage device to the second storage device to control the first processor to read the boot program from the second storage device.

Abstract: Technologies are described for facilitating database system recovery in a distributed database environment having a master node and at least one slave node. The at least one slave node receives a preliminary slave log backup position. The at least one slave node replays at least a portion of one or more log backups until the preliminary log backup position is reached. The at least one slave node receives a final slave log backup position. The slave node replays at least a portion of one or more log backups until the final slave log backup position is reached.

Abstract: A storage manager may be used to perform a refinement operation on a coding matrix as part of a coding operation (e.g., an encoding operation or a decoding operation) in a storage system, such as an object-redundant storage system. The refinement operation may include identifying a plurality of computations to be performed as part of the coding operation, where the plurality of computations have common terms and operations. The refinement operation may include refining a coding matrix associated with the coding operation based on the identified computations and precomputing the identified computations. The precomputed computations may be used instead of performing the computations when performing the coding operation.

Abstract: A storage manager may be used to perform a coding operation (e.g., an encoding operation or a decoding operation) on a data object using a refined version of a coding matrix in a storage system, such as an object-redundant storage system. The coding operation may include identifying a coding matrix for the data object and retrieving a refined version of the identified coding matrix from a data store of pre-refined coding matrices. The refined version of the coding matrix may identify two or more computations to be performed as part of the coding operation, where the two or more computations have common terms and operations. The coding operation may include determining one or more precomputed results of the two or more identified computations. The precomputed results may be used instead of performing the computations when performing the coding operation.