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公开(公告)号：US20250036438A1
公开(公告)日：2025-01-30
申请号：US18225914
申请日：2023-07-25
Applicant: VMWARE, INC.
Inventor： Sowgandh Sunil Gadi , Petr Vandrovec , Harsha Vardhan Ghanta , Arunachalam Ramanathan , Yijiang Yuan , Doug Covelli , Balakrishna Tallapragada
IPC: G06F9/455
Abstract: System and method for enabling operations for virtual computing instances with physical passthru devices includes moving an input-output memory management unit (IOMMU) domain from a source virtual computing instance having a physical passthru device to a destination virtual computing instance, where guest operations are performed in the source virtual computing instance. After the destinating virtual computing instance is powered on, any interrupt notifications from the physical passthru device are buffered. After memory data is transferred from the source virtual computing instance to the destination virtual computing instance, posting of interrupt notifications from the physical passthru device is resumed and any buffered interrupt notifications from the physical passthru device are posted. Guest operations are performed in the destination virtual computing instance.
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公开(公告)号：US10191837B2
公开(公告)日：2019-01-29
申请号：US15415047
申请日：2017-01-25
Applicant: VMware, Inc.
Inventor： Sowgandh Sunil Gadi , Naveen Prakash Rao , Travis Finch , Ayoob Khan
Abstract: An automated end-to-end analysis of customer service requests is disclosed. A core dump is received, wherein the core dump corresponds to a customer service request regarding a crash of a computer system. The core dump is automatically analyzed with a processor to generate analysis results. A graphical representation for display on a graphic user interface of a computer is generate, wherein the graphical representation corresponds to the analysis results for the core dump.
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公开(公告)号：US20240241728A1
公开(公告)日：2024-07-18
申请号：US18097601
申请日：2023-01-17
Applicant: VMware, Inc.
IPC: G06F9/4401
CPC classification number: G06F9/4403
Abstract: Disclosed are various examples of host and data processing unit (DPU) coordination for DPU maintenance events. A host device can have a DPU device connected to it. A data processing unit (DPU) maintenance process executed by a host device can quiesce applications or virtual machines of the host device, and call a DPU isolation interface that isolates the DPU device to prevent host panic. A kernel process of the host device unloads a driver of the DPU device from the host device and removes the DPU device from a device manager of the host device. A DPU maintenance action is performed once the DPU device is isolated.
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公开(公告)号：US20210216394A1
公开(公告)日：2021-07-15
申请号：US16743895
申请日：2020-01-15
Applicant: VMware, Inc.
Inventor： Sowgandh Sunil Gadi , Rajesh Venkatasubramanian , Venkata Subhash Reddy Peddamallu , Arunachalam Ramanathan , Timothy P. Mann , Frederick Joseph Jacobs
Abstract: Techniques for migrating virtual machines (VMs) in the presence of uncorrectable memory errors are provided. According to one set of embodiments, a source host hypervisor of a source host system can determine, for each guest memory page of a VM to be migrated from the source host system to a destination host system, whether the guest memory page is impacted by an uncorrectable memory error in a byte-addressable memory of the source host system. If the source host hypervisor determines that the guest memory page is impacted, the source host hypervisor can transmit a data packet to a destination host hypervisor of the destination host system that includes error metadata identifying the guest memory page as being corrupted. Alternatively, if the source host hypervisor determines that the guest memory page is not impacted, the source host hypervisor can attempt to read the guest memory page from the byte-addressable memory in a memory exception-safe manner.
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公开(公告)号：US10331508B2
公开(公告)日：2019-06-25
申请号：US15415235
申请日：2017-01-25
Applicant: VMware, Inc.
Inventor： Sowgandh Sunil Gadi , Ayoob Khan , Vihang Karajgaonkar
Abstract: A computer-implemented method assessing the risk of a future crash occurring on a computer system is disclosed. Crash results are received from a crash analysis system. The crash results are analyzed, at a processor, to determine the likelihood of the future crash occurring on the computer system. Information regarding the likelihood of the future crash occurring on the computer system is provided to a user of the computer system.
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Patent Agency Ranking
公开(公告)号：US09552250B2
公开(公告)日：2017-01-24
申请号：US14669049
申请日：2015-03-26
Applicant: VMware, Inc.
Inventor： Hariprakash Govindarajalu , Yujie Chen , Sowgandh Sunil Gadi , Ravi Parimi
CPC classification number: G06F11/079 , G06F11/0721 , G06F11/0751 , G06F11/0766 , G06F11/0778
Abstract: Discovering a hardware failure in a processor is disclosed. When an operating system or application fails, a function containing the instruction that failed along with the register set of the CPU at the failure is recorded. The function is analyzed into its basic blocks. The failing instruction, the failing basic block, the definitions that reach the failing instruction, and the CPU register set at the failure provide information to determine whether the failure was caused by hardware or software. If, after a complete search of the definitions reaching the failing instruction, the search discovers a first definition defining the failing instruction and a second definition defining the first definition such that the second definition reaches the failing instruction and the first definition assigns a register value that does not match a register value in the failing instruction, then a hardware failure is the cause of the crash.
Abstract translation: 发现在处理器中发现硬件故障。 当操作系统或应用程序发生故障时，将记录包含失败的指令失败的功能以及故障时CPU的寄存器组。 该功能被分析成其基本块。 失败的指令，失败的基本块，到达故障指令的定义以及故障时设置的CPU寄存器提供信息，以确定故障是由硬件还是软件引起。 如果在对达到故障指令的定义的完整搜索完成之后，搜索发现定义故障指令的第一定义和定义第一定义的第二定义，使得第二定义到达故障指令，并且第一定义分配一个寄存器值， 在失败的指令中与寄存器值不匹配，则硬件故障是崩溃的原因。
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7.发明公开公开(公告)号：US20230259421A1
公开(公告)日：2023-08-17
申请号：US18306058
申请日：2023-04-24
Applicant: VMware, Inc.
Inventor： Sowgandh Sunil Gadi , Rajesh Venkatasubramanian , Venkata Subhash Reddy Peddamallu , Arunachalam Ramanathan , Timothy P. Mann , Frederick Joseph Jacobs
CPC classification number: G06F11/0793 , G06F11/0712 , G06F11/0727 , G06F11/079 , G06F9/45558 , G06F11/0751 , G06F2009/4557 , G06F2009/45583
Abstract: Techniques for migrating virtual machines (VMs) in the presence of uncorrectable memory errors are provided. According to one set of embodiments, a source host hypervisor of a source host system can determine, for each guest memory page of a VM to be migrated from the source host system to a destination host system, whether the guest memory page is impacted by an uncorrectable memory error in a byte-addressable memory of the source host system. If the source host hypervisor determines that the guest memory page is impacted, the source host hypervisor can transmit a data packet to a destination host hypervisor of the destination host system that includes error metadata identifying the guest memory page as being corrupted. Alternatively, if the source host hypervisor determines that the guest memory page is not impacted, the source host hypervisor can attempt to read the guest memory page from the byte-addressable memory in a memory exception-safe manner.
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8.发明授权公开(公告)号：US11669388B2
公开(公告)日：2023-06-06
申请号：US17494826
申请日：2021-10-05
Applicant: VMware, Inc.
Inventor： Sowgandh Sunil Gadi , Rajesh Venkatasubramanian , Venkata Subhash Reddy Peddamallu , Arunachalam Ramanathan , Timothy P Mann , Frederick Joseph Jacobs
CPC classification number: G06F11/0793 , G06F9/45558 , G06F11/079 , G06F11/0712 , G06F11/0727 , G06F11/0751 , G06F2009/4557 , G06F2009/45583
Abstract: Techniques for migrating virtual machines (VMs) in the presence of uncorrectable memory errors are provided. According to one set of embodiments, a source host hypervisor of a source host system can determine, for each guest memory page of a VM to be migrated from the source host system to a destination host system, whether the guest memory page is impacted by an uncorrectable memory error in a byte-addressable memory of the source host system. If the source host hypervisor determines that the guest memory page is impacted, the source host hypervisor can transmit a data packet to a destination host hypervisor of the destination host system that includes error metadata identifying the guest memory page as being corrupted. Alternatively, if the source host hypervisor determines that the guest memory page is not impacted, the source host hypervisor can attempt to read the guest memory page from the byte-addressable memory in a memory exception-safe manner.
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公开(公告)号：US10338990B2
公开(公告)日：2019-07-02
申请号：US15415089
申请日：2017-01-25
Applicant: VMware, Inc.
Inventor： Ayoob Khan , Sowgandh Sunil Gadi
Abstract: In a crash analysis system, a method for analyzing a core dump corresponding to a crash of a computer system is disclosed. A core dump is received wherein the core dump corresponds to a crash of a computer system. A culprit module responsible for the crash of the computer system is determined. A signature back trace, which pertains to a symptom of the crash of the computer system is generated.
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公开(公告)号：US10331546B2
公开(公告)日：2019-06-25
申请号：US15415261
申请日：2017-01-25
Applicant: VMware, Inc.
Inventor： Sowgandh Sunil Gadi , Hariprakash Govindarajalu
Abstract: An automated end-to-end analysis of customer service requests is disclosed. A core dump is received, wherein the core dump corresponds to a customer service request regarding a crash of a computer system. A processor automatically analyzes the core dump to determine if a pcpu lockup of the computer system is due to a software issue. Provided the pcpu lockup of the computer system is due to the software issue, the processor determines which thread is a culprit thread responsible for the pcpu lockup of the computer system.
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