lume/src/kernel/mm/vm.cc, branch master A general-purpose operating system with Linux ABI compatibility https://git.richardqin.org/lume/atom?h=master 2026-07-10T03:31:46Z refactor: promote new architecture to repository root 2026-07-10T03:31:46Z Richard Qin richard.qin.x@gmail.com 2026-07-10T03:31:46Z urn:sha1:e90b72ec3082588b296956730bd2930cf8d5d671 Archive the deprecated implementation under lume-legacy, make the new kernel the default root-level build, and update repository entry points without changing kernel behavior. feat: implement FDT-based memory discovery and add comprehensive debug logging to exec syscalls 2026-04-14T14:47:15Z Richard Qin richard.qin.x@gmail.com 2026-04-14T14:47:15Z urn:sha1:ac9741e12222e72bad3414bc6f588e70a3d130cc Important: License changed from MIT to GPL. 2026-01-04T17:31:55Z Richard Qin richard.qin.x@gmail.com 2026-01-04T17:31:55Z urn:sha1:51a788fa9e13ead0c504a1369797f8b49d73634c Rewrote the README based on the actual project. Fix: critical malloc size calculation bug 2026-01-02T18:13:08Z Richard Qin richard.qin.x@gmail.com 2026-01-02T18:13:08Z urn:sha1:10614e04929a6d109a5e90524e446b637aaf0c13 Summary: - Fixed an integer arithmetic error in malloc() where 'nunits' was initialized to 0, causing incorrect heap sizing. - This bug caused malloc to return pointers pointing to unmapped memory pages, leading to Store Page Fault (scause 15) at process boundaries. - Switched memory allocator logic to use byte-based size calculation instead of K&R style units to prevent off-by-one errors. Improvements: - Shell now starts successfully without segfaults. dev(sell): add simple libc and implement shell 2026-01-02T02:09:37Z Richard Qin richard.qin.x@gmail.com 2026-01-02T02:09:37Z urn:sha1:1c8e37f63d413a559825020289178d442537449e please see the log for detail. dev(file-system): establish VFS and Read-only FAT32 File System 2026-01-01T16:58:45Z Richard Qin richard.qin.x@gmail.com 2026-01-01T16:47:16Z urn:sha1:d8eaa13f2efc1eeca4e5f230d5a2d535aaf27338 dev(device): implement VirtIO 2026-01-01T07:04:47Z Richard Qin richard.qin.x@gmail.com 2026-01-01T07:04:47Z urn:sha1:2dde56422dcfb94affee2baffc8d240ad16ad4b2 See dev log for detail dev:Refactor Memory Management and Process Management 2025-12-31T10:00:55Z Richard Qin richard.qin.x@gmail.com 2025-12-31T10:00:55Z urn:sha1:dbba25aa24f86c1f8c3a0589c82985840adc1b6b fixed(vm): page allocation error 2025-12-28T07:02:44Z Richard Qin richard.qin.x@gmail.com 2025-12-28T07:02:44Z urn:sha1:f6abbd2c8ed5301ac7f3347696e34669bcd00a8d feat(syscall): Implement syscall dispatch and process lifecycle (exit/wait/sleep) 2025-12-27T16:48:24Z Richard Qin richard.qin.x@gmail.com 2025-12-27T16:48:24Z urn:sha1:a82ab8ad6d277ededc128678aebabf5fbdb01c45