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Improvements to Core OS
sched
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* [#10919](https://github.com/apache/nuttx/pull/10919) sched: assert: move the backtrace dump after the stack dump
* [#11195](https://github.com/apache/nuttx/pull/11195) sched: assert: restore assertion registers to array of last registers
* [#10858](https://github.com/apache/nuttx/pull/10858) sched: assert.c: Print process name in assert dump
* [#11131](https://github.com/apache/nuttx/pull/11131) sched: Check for zero sleep time and yield CPU
* [#11226](https://github.com/apache/nuttx/pull/11226) sched: delete check when pick nexttcb in readytorun list
* [#11038](https://github.com/apache/nuttx/pull/11038) sched: env_dup: fix issue about USE_AFTER_FREE
* [#11102](https://github.com/apache/nuttx/pull/11102) sched: explicitly select the cpuload clock source configuration
* [#10816](https://github.com/apache/nuttx/pull/10816) sched: Fix dependencies of CONFIG_SCHED_CPULOAD_ settings
* [#11036](https://github.com/apache/nuttx/pull/11036) sched: Follow o_cloexe semantics when calling the exec function
* [#10867](https://github.com/apache/nuttx/pull/10867) sched: format: modify spin_lock_irqsave format
* [#11018](https://github.com/apache/nuttx/pull/11018) sched: group/killchildren: replace syscall(2) to kernel api
* [#10605](https://github.com/apache/nuttx/pull/10605) sched: Implement ticket spinlock
* [#10827](https://github.com/apache/nuttx/pull/10827) sched: Improve adjtime() functionality
* [#11231](https://github.com/apache/nuttx/pull/11231) sched: lock refine: remove sched_[un]lock in xxx_waitsample
* [#11302](https://github.com/apache/nuttx/pull/11302) sched: misc/rwlock:Implementing read/write locks.
* [#11347](https://github.com/apache/nuttx/pull/11347) sched: Print more information in assert
* [#11017](https://github.com/apache/nuttx/pull/11017) sched: pthread/barrierwait: replace syscall(2) to kernel api
* [#10929](https://github.com/apache/nuttx/pull/10929) sched: Remove the unused tcb argument from group_setupidlefiles
* [#10776](https://github.com/apache/nuttx/pull/10776) sched: rw spinlock
* [#11124](https://github.com/apache/nuttx/pull/11124) sched: rw spinlocks: cosmetic changes
* [#11191](https://github.com/apache/nuttx/pull/11191) sched: sem_holder.c: When accessing SEM_WAITLIST, use holder's addrenv
* [#11257](https://github.com/apache/nuttx/pull/11257) sched: semaphore: Move POSIX regulated parts of semaphores into libc
* [#11252](https://github.com/apache/nuttx/pull/11252) sched: sigaction: Expand si_user for non-kernel signals
* [#10970](https://github.com/apache/nuttx/pull/10970) sched: smp call exit immediately when cpuset change to 0.
* [#10861](https://github.com/apache/nuttx/pull/10861) sched: spinlock: Add spin_lock_init and spin_is_locked macro
* [#11348](https://github.com/apache/nuttx/pull/11348) sched: Stack recored:Add maximum stack statistics when the task is running
* [#9163](https://github.com/apache/nuttx/pull/9163) sched: Stop the sched timer when possible to save the power in tickless mode
* [#10934](https://github.com/apache/nuttx/pull/10934) sched: support smp function call
* [#11032](https://github.com/apache/nuttx/pull/11032) sched: task: [posix]spawn: Simplify how spawn attributes are handled
* [#11241](https://github.com/apache/nuttx/pull/11241) sched: task: pthread_cancelpt: Fix nxtask_delete from another task group
* [#11165](https://github.com/apache/nuttx/pull/11165) sched: task: pthread_cancelpt: Move cancel point handling to libc, data to TLS
* [#11097](https://github.com/apache/nuttx/pull/11097) sched: task: Remove spawn_proxyattrs as obsolete implementation
* [#11177](https://github.com/apache/nuttx/pull/11177) sched: taskfiles: skip unnecessary file open/close operations to improve performance
* [#11250](https://github.com/apache/nuttx/pull/11250) sched: taskspawn: fix spawn fail if enable FDCHECK
* [#10834](https://github.com/apache/nuttx/pull/10834) sched: timer: handle perf count overflow
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mm
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* [#11068](https://github.com/apache/nuttx/pull/11068) mm: both use spin_lock_irqxx() when operated delaylist * [#11183](https://github.com/apache/nuttx/pull/11183) mm: free delay list when exceeding specified count * [#11258](https://github.com/apache/nuttx/pull/11258) mm: kmap: Finalize kmap implementation for RISC-V * [#10837](https://github.com/apache/nuttx/pull/10837) mm: kmap: Fix bug in kmm_unmap * [#10876](https://github.com/apache/nuttx/pull/10876) mm: kmap: Fix several issues with the kmm_map interface * [#11114](https://github.com/apache/nuttx/pull/11114) mm: kmap: Fix bad dependency to ARCH_VMA_MAPPING * [#11092](https://github.com/apache/nuttx/pull/11092) mm: improve SMP performance * [#11152](https://github.com/apache/nuttx/pull/11152) mm: record the maximum system memory usage * [#11168](https://github.com/apache/nuttx/pull/11168) mm: Remove mm_spinlock * [#10984](https://github.com/apache/nuttx/pull/10984) mm: Replace enter_critical_section with spin_irqsave |
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