google/gvisor
Apr 2026 – Apr 2026
1 Month active
Languages Used
Go
Technical Skills
Gokernel developmentsystem programming
Ivan Gotovchits
PROFILE
Ivan Gotovchits
Worked on the google/gvisor repository to implement partial-read support for PtraceGetRegSet NT_PRSTATUS, enhancing debugging tool compatibility within containerized environments. The solution aligned gVisor’s behavior with Linux kernel semantics by writing the minimum of the requested and full register size, supporting both x86_64 and arm64 architectures. This update resolved previous EFAULT errors when handling smaller buffers, enabling reliable stack unwinding with tools like libunwind. The work included adding a syscall-level test to verify partial-read correctness and improve regression coverage. Demonstrated expertise in Go, kernel development, and system programming, focusing on low-level ptrace handling and cross-architecture support.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
1Total
Bugs
0
Commits
1
Features
1
Lines of code
77
Activity Months1
Your Network
112 peopleShared Repositories
78
Work History
April 2026
1 Commits • 1 Features
Apr 1, 2026In April 2026, delivered partial-read support for PtraceGetRegSet NT_PRSTATUS in google/gvisor, aligning with Linux kernel semantics and improving debugging tool compatibility (notably libunwind) within containers. Implemented cross-arch handling (x86_64 and arm64) to write min(maxlen, full register size) and added a syscall-level test to verify the partial-read path. Major bug fix: resolved prior EFAULT behavior when maxlen was smaller than the full register set by mirroring kernel semantics, enabling reliable partial reads and smoother remote unwinding. Impact: users gain reliable ptrace-based debugging in gVisor environments; developers see fewer unwinding failures and better tool interoperability, accelerating debugging and performance-tuning workflows. Technologies/skills demonstrated: C/C++, low-level ptrace, cross-arch development, Linux kernel semantics alignment, syscall testing, regression test coverage, git-based change tracking.
1 Commits • 1 Features
Apr 1, 2026In April 2026, delivered partial-read support for PtraceGetRegSet NT_PRSTATUS in google/gvisor, aligning with Linux kernel semantics and improving debugging tool compatibility (notably libunwind) within containers. Implemented cross-arch handling (x86_64 and arm64) to write min(maxlen, full register size) and added a syscall-level test to verify the partial-read path. Major bug fix: resolved prior EFAULT behavior when maxlen was smaller than the full register set by mirroring kernel semantics, enabling reliable partial reads and smoother remote unwinding. Impact: users gain reliable ptrace-based debugging in gVisor environments; developers see fewer unwinding failures and better tool interoperability, accelerating debugging and performance-tuning workflows. Technologies/skills demonstrated: C/C++, low-level ptrace, cross-arch development, Linux kernel semantics alignment, syscall testing, regression test coverage, git-based change tracking.
April 2026
Activity
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Quality Metrics
Correctness100.0%
Maintainability80.0%
Architecture100.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
Go
Technical Skills
Gokernel developmentsystem programming
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