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[ { "from": "human", "value": "How do I diagnose a regression in a memory allocation and address mapping path when the source example is `kmalloc`?" }, { "from": "gpt", "value": "Trace the inputs, the derived values, and the exact state writes in execution order.\n####\n`kmalloc` gives a concrete ...
[ { "from": "human", "value": "How should a memory allocation and address mapping routine fit into a larger kernel subsystem when the source example is `kmalloc`?" }, { "from": "gpt", "value": "It should expose one clear behavior and leave unrelated policy to the surrounding subsystem.\n####\nThe ...
[ { "from": "human", "value": "What should failure handling look like in memory allocation and address mapping code when the source example is `kmalloc`?" }, { "from": "gpt", "value": "Failure handling should leave shared state either unchanged or deliberately marked as failed.\n####\nA grounded s...
[ { "from": "human", "value": "How do I avoid off-by-one and bounds errors in memory allocation and address mapping code when the source example is `kmalloc`?" }, { "from": "gpt", "value": "Compute limits once, check them before memory access, and advance cursors in one consistent place.\n####\nTh...
[ { "from": "human", "value": "How should I reason about a memory allocation and address mapping routine in kernel when the source example is `kfree`?" }, { "from": "gpt", "value": "`kfree` is a concrete example of a memory allocation and address mapping routine: it releases storage and updates th...
[ { "from": "human", "value": "How can I implement a memory allocation and address mapping helper without breaking nearby kernel code when the source example is `kfree`?" }, { "from": "gpt", "value": "Follow the existing ownership and state-update pattern instead of inventing a second path.\n####\...
[ { "from": "human", "value": "Why can bugs appear in memory allocation and address mapping code when state is updated in the wrong order and the source example is `kfree`?" }, { "from": "gpt", "value": "These bugs usually happen when bookkeeping changes are separated from the operation they descr...
[ { "from": "human", "value": "How should I test a memory allocation and address mapping routine in low-level C code when the source example is `kfree`?" }, { "from": "gpt", "value": "Test the normal path, the boundary path, and the failure path with observable state before and after each call.\n#...
[ { "from": "human", "value": "How can I refactor memory allocation and address mapping code while keeping behavior stable when the source example is `kfree`?" }, { "from": "gpt", "value": "Separate decoding, validation, state mutation, and reporting only where the source already shows a useful bo...
[ { "from": "human", "value": "How should another module call into a memory allocation and address mapping function safely when the source example is `kfree`?" }, { "from": "gpt", "value": "Call it only after preparing the state it expects and be ready for its existing failure convention.\n####\nT...
[ { "from": "human", "value": "What edge cases matter for memory allocation and address mapping code in a kernel when the source example is `kfree`?" }, { "from": "gpt", "value": "The important edge cases are the ones that stress bounds, ownership, and partial progress.\n####\nIn the source, `kfre...
[ { "from": "human", "value": "What small code pattern helps keep a memory allocation and address mapping operation easy to audit when the source example is `kfree`?" }, { "from": "gpt", "value": "Use a validate-then-mutate shape so all side effects are visible after the checks.\n####\nThe source ...
[ { "from": "human", "value": "How do I diagnose a regression in a memory allocation and address mapping path when the source example is `kfree`?" }, { "from": "gpt", "value": "Trace the inputs, the derived values, and the exact state writes in execution order.\n####\n`kfree` gives a concrete path...
[ { "from": "human", "value": "How should a memory allocation and address mapping routine fit into a larger kernel subsystem when the source example is `kfree`?" }, { "from": "gpt", "value": "It should expose one clear behavior and leave unrelated policy to the surrounding subsystem.\n####\nThe so...
[ { "from": "human", "value": "What should failure handling look like in memory allocation and address mapping code when the source example is `kfree`?" }, { "from": "gpt", "value": "Failure handling should leave shared state either unchanged or deliberately marked as failed.\n####\nA grounded sou...
[ { "from": "human", "value": "How do I avoid off-by-one and bounds errors in memory allocation and address mapping code when the source example is `kfree`?" }, { "from": "gpt", "value": "Compute limits once, check them before memory access, and advance cursors in one consistent place.\n####\nThe ...
[ { "from": "human", "value": "How should I reason about a memory allocation and address mapping routine in kernel when the source example is `alloc_kstack`?" }, { "from": "gpt", "value": "`alloc_kstack` is a concrete example of a memory allocation and address mapping routine: it allocates storage...
[ { "from": "human", "value": "How can I implement a memory allocation and address mapping helper without breaking nearby kernel code when the source example is `alloc_kstack`?" }, { "from": "gpt", "value": "Follow the existing ownership and state-update pattern instead of inventing a second path....
[ { "from": "human", "value": "Why can bugs appear in memory allocation and address mapping code when state is updated in the wrong order and the source example is `alloc_kstack`?" }, { "from": "gpt", "value": "These bugs usually happen when bookkeeping changes are separated from the operation the...
[ { "from": "human", "value": "How should I test a memory allocation and address mapping routine in low-level C code when the source example is `alloc_kstack`?" }, { "from": "gpt", "value": "Test the normal path, the boundary path, and the failure path with observable state before and after each c...
[ { "from": "human", "value": "How can I refactor memory allocation and address mapping code while keeping behavior stable when the source example is `alloc_kstack`?" }, { "from": "gpt", "value": "Separate decoding, validation, state mutation, and reporting only where the source already shows a us...
[ { "from": "human", "value": "How should another module call into a memory allocation and address mapping function safely when the source example is `alloc_kstack`?" }, { "from": "gpt", "value": "Call it only after preparing the state it expects and be ready for its existing failure convention.\n...
[ { "from": "human", "value": "What edge cases matter for memory allocation and address mapping code in a kernel when the source example is `alloc_kstack`?" }, { "from": "gpt", "value": "The important edge cases are the ones that stress bounds, ownership, and partial progress.\n####\nIn the source...
[ { "from": "human", "value": "What small code pattern helps keep a memory allocation and address mapping operation easy to audit when the source example is `alloc_kstack`?" }, { "from": "gpt", "value": "Use a validate-then-mutate shape so all side effects are visible after the checks.\n####\nThe ...
[ { "from": "human", "value": "How do I diagnose a regression in a memory allocation and address mapping path when the source example is `alloc_kstack`?" }, { "from": "gpt", "value": "Trace the inputs, the derived values, and the exact state writes in execution order.\n####\n`alloc_kstack` gives a...
[ { "from": "human", "value": "How should a memory allocation and address mapping routine fit into a larger kernel subsystem when the source example is `alloc_kstack`?" }, { "from": "gpt", "value": "It should expose one clear behavior and leave unrelated policy to the surrounding subsystem.\n####\...
[ { "from": "human", "value": "What should failure handling look like in memory allocation and address mapping code when the source example is `alloc_kstack`?" }, { "from": "gpt", "value": "Failure handling should leave shared state either unchanged or deliberately marked as failed.\n####\nA groun...
[ { "from": "human", "value": "How do I avoid off-by-one and bounds errors in memory allocation and address mapping code when the source example is `alloc_kstack`?" }, { "from": "gpt", "value": "Compute limits once, check them before memory access, and advance cursors in one consistent place.\n###...
[ { "from": "human", "value": "How should I reason about a memory allocation and address mapping routine in kernel when the source example is `alloc_ustack`?" }, { "from": "gpt", "value": "`alloc_ustack` is a concrete example of a memory allocation and address mapping routine: it allocates storage...
[ { "from": "human", "value": "How can I implement a memory allocation and address mapping helper without breaking nearby kernel code when the source example is `alloc_ustack`?" }, { "from": "gpt", "value": "Follow the existing ownership and state-update pattern instead of inventing a second path....
[ { "from": "human", "value": "Why can bugs appear in memory allocation and address mapping code when state is updated in the wrong order and the source example is `alloc_ustack`?" }, { "from": "gpt", "value": "These bugs usually happen when bookkeeping changes are separated from the operation the...
[ { "from": "human", "value": "How should I test a memory allocation and address mapping routine in low-level C code when the source example is `alloc_ustack`?" }, { "from": "gpt", "value": "Test the normal path, the boundary path, and the failure path with observable state before and after each c...
[ { "from": "human", "value": "How can I refactor memory allocation and address mapping code while keeping behavior stable when the source example is `alloc_ustack`?" }, { "from": "gpt", "value": "Separate decoding, validation, state mutation, and reporting only where the source already shows a us...
[ { "from": "human", "value": "How should another module call into a memory allocation and address mapping function safely when the source example is `alloc_ustack`?" }, { "from": "gpt", "value": "Call it only after preparing the state it expects and be ready for its existing failure convention.\n...
[ { "from": "human", "value": "What edge cases matter for memory allocation and address mapping code in a kernel when the source example is `alloc_ustack`?" }, { "from": "gpt", "value": "The important edge cases are the ones that stress bounds, ownership, and partial progress.\n####\nIn the source...
[ { "from": "human", "value": "What small code pattern helps keep a memory allocation and address mapping operation easy to audit when the source example is `alloc_ustack`?" }, { "from": "gpt", "value": "Use a validate-then-mutate shape so all side effects are visible after the checks.\n####\nThe ...
[ { "from": "human", "value": "How do I diagnose a regression in a memory allocation and address mapping path when the source example is `alloc_ustack`?" }, { "from": "gpt", "value": "Trace the inputs, the derived values, and the exact state writes in execution order.\n####\n`alloc_ustack` gives a...
[ { "from": "human", "value": "How should a memory allocation and address mapping routine fit into a larger kernel subsystem when the source example is `alloc_ustack`?" }, { "from": "gpt", "value": "It should expose one clear behavior and leave unrelated policy to the surrounding subsystem.\n####\...
[ { "from": "human", "value": "What should failure handling look like in memory allocation and address mapping code when the source example is `alloc_ustack`?" }, { "from": "gpt", "value": "Failure handling should leave shared state either unchanged or deliberately marked as failed.\n####\nA groun...
[ { "from": "human", "value": "How do I avoid off-by-one and bounds errors in memory allocation and address mapping code when the source example is `alloc_ustack`?" }, { "from": "gpt", "value": "Compute limits once, check them before memory access, and advance cursors in one consistent place.\n###...
[ { "from": "human", "value": "How should I reason about a memory allocation and address mapping routine in kernel when the source example is `map_page`?" }, { "from": "gpt", "value": "`map_page` is a concrete example of a memory allocation and address mapping routine: it creates virtual-to-physic...
[ { "from": "human", "value": "How can I implement a memory allocation and address mapping helper without breaking nearby kernel code when the source example is `map_page`?" }, { "from": "gpt", "value": "Follow the existing ownership and state-update pattern instead of inventing a second path.\n##...
[ { "from": "human", "value": "Why can bugs appear in memory allocation and address mapping code when state is updated in the wrong order and the source example is `map_page`?" }, { "from": "gpt", "value": "These bugs usually happen when bookkeeping changes are separated from the operation they de...
[ { "from": "human", "value": "How should I test a memory allocation and address mapping routine in low-level C code when the source example is `map_page`?" }, { "from": "gpt", "value": "Test the normal path, the boundary path, and the failure path with observable state before and after each call....
[ { "from": "human", "value": "How can I refactor memory allocation and address mapping code while keeping behavior stable when the source example is `map_page`?" }, { "from": "gpt", "value": "Separate decoding, validation, state mutation, and reporting only where the source already shows a useful...
[ { "from": "human", "value": "How should another module call into a memory allocation and address mapping function safely when the source example is `map_page`?" }, { "from": "gpt", "value": "Call it only after preparing the state it expects and be ready for its existing failure convention.\n####...
[ { "from": "human", "value": "What edge cases matter for memory allocation and address mapping code in a kernel when the source example is `map_page`?" }, { "from": "gpt", "value": "The important edge cases are the ones that stress bounds, ownership, and partial progress.\n####\nIn the source, `m...
[ { "from": "human", "value": "What small code pattern helps keep a memory allocation and address mapping operation easy to audit when the source example is `map_page`?" }, { "from": "gpt", "value": "Use a validate-then-mutate shape so all side effects are visible after the checks.\n####\nThe sour...
[ { "from": "human", "value": "How do I diagnose a regression in a memory allocation and address mapping path when the source example is `map_page`?" }, { "from": "gpt", "value": "Trace the inputs, the derived values, and the exact state writes in execution order.\n####\n`map_page` gives a concret...
[ { "from": "human", "value": "How should a memory allocation and address mapping routine fit into a larger kernel subsystem when the source example is `map_page`?" }, { "from": "gpt", "value": "It should expose one clear behavior and leave unrelated policy to the surrounding subsystem.\n####\nThe...
[ { "from": "human", "value": "What should failure handling look like in memory allocation and address mapping code when the source example is `map_page`?" }, { "from": "gpt", "value": "Failure handling should leave shared state either unchanged or deliberately marked as failed.\n####\nA grounded ...
[ { "from": "human", "value": "How do I avoid off-by-one and bounds errors in memory allocation and address mapping code when the source example is `map_page`?" }, { "from": "gpt", "value": "Compute limits once, check them before memory access, and advance cursors in one consistent place.\n####\nT...
[ { "from": "human", "value": "How should I reason about a memory allocation and address mapping routine in kernel when the source example is `map_kpage`?" }, { "from": "gpt", "value": "`map_kpage` is a concrete example of a memory allocation and address mapping routine: it creates virtual-to-phys...
[ { "from": "human", "value": "How can I implement a memory allocation and address mapping helper without breaking nearby kernel code when the source example is `map_kpage`?" }, { "from": "gpt", "value": "Follow the existing ownership and state-update pattern instead of inventing a second path.\n#...
[ { "from": "human", "value": "Why can bugs appear in memory allocation and address mapping code when state is updated in the wrong order and the source example is `map_kpage`?" }, { "from": "gpt", "value": "These bugs usually happen when bookkeeping changes are separated from the operation they d...
[ { "from": "human", "value": "How should I test a memory allocation and address mapping routine in low-level C code when the source example is `map_kpage`?" }, { "from": "gpt", "value": "Test the normal path, the boundary path, and the failure path with observable state before and after each call...
[ { "from": "human", "value": "How can I refactor memory allocation and address mapping code while keeping behavior stable when the source example is `map_kpage`?" }, { "from": "gpt", "value": "Separate decoding, validation, state mutation, and reporting only where the source already shows a usefu...
[ { "from": "human", "value": "How should another module call into a memory allocation and address mapping function safely when the source example is `map_kpage`?" }, { "from": "gpt", "value": "Call it only after preparing the state it expects and be ready for its existing failure convention.\n###...
[ { "from": "human", "value": "What edge cases matter for memory allocation and address mapping code in a kernel when the source example is `map_kpage`?" }, { "from": "gpt", "value": "The important edge cases are the ones that stress bounds, ownership, and partial progress.\n####\nIn the source, `...
[ { "from": "human", "value": "What small code pattern helps keep a memory allocation and address mapping operation easy to audit when the source example is `map_kpage`?" }, { "from": "gpt", "value": "Use a validate-then-mutate shape so all side effects are visible after the checks.\n####\nThe sou...
[ { "from": "human", "value": "How do I diagnose a regression in a memory allocation and address mapping path when the source example is `map_kpage`?" }, { "from": "gpt", "value": "Trace the inputs, the derived values, and the exact state writes in execution order.\n####\n`map_kpage` gives a concr...
[ { "from": "human", "value": "How should a memory allocation and address mapping routine fit into a larger kernel subsystem when the source example is `map_kpage`?" }, { "from": "gpt", "value": "It should expose one clear behavior and leave unrelated policy to the surrounding subsystem.\n####\nTh...
[ { "from": "human", "value": "What should failure handling look like in memory allocation and address mapping code when the source example is `map_kpage`?" }, { "from": "gpt", "value": "Failure handling should leave shared state either unchanged or deliberately marked as failed.\n####\nA grounded...
[ { "from": "human", "value": "How do I avoid off-by-one and bounds errors in memory allocation and address mapping code when the source example is `map_kpage`?" }, { "from": "gpt", "value": "Compute limits once, check them before memory access, and advance cursors in one consistent place.\n####\n...
[ { "from": "human", "value": "How should I reason about a memory allocation and address mapping routine in kernel when the source example is `map_upage`?" }, { "from": "gpt", "value": "`map_upage` is a concrete example of a memory allocation and address mapping routine: it creates virtual-to-phys...
[ { "from": "human", "value": "How can I implement a memory allocation and address mapping helper without breaking nearby kernel code when the source example is `map_upage`?" }, { "from": "gpt", "value": "Follow the existing ownership and state-update pattern instead of inventing a second path.\n#...
[ { "from": "human", "value": "Why can bugs appear in memory allocation and address mapping code when state is updated in the wrong order and the source example is `map_upage`?" }, { "from": "gpt", "value": "These bugs usually happen when bookkeeping changes are separated from the operation they d...
[ { "from": "human", "value": "How should I test a memory allocation and address mapping routine in low-level C code when the source example is `map_upage`?" }, { "from": "gpt", "value": "Test the normal path, the boundary path, and the failure path with observable state before and after each call...
[ { "from": "human", "value": "How can I refactor memory allocation and address mapping code while keeping behavior stable when the source example is `map_upage`?" }, { "from": "gpt", "value": "Separate decoding, validation, state mutation, and reporting only where the source already shows a usefu...
[ { "from": "human", "value": "How should another module call into a memory allocation and address mapping function safely when the source example is `map_upage`?" }, { "from": "gpt", "value": "Call it only after preparing the state it expects and be ready for its existing failure convention.\n###...
[ { "from": "human", "value": "What edge cases matter for memory allocation and address mapping code in a kernel when the source example is `map_upage`?" }, { "from": "gpt", "value": "The important edge cases are the ones that stress bounds, ownership, and partial progress.\n####\nIn the source, `...
[ { "from": "human", "value": "What small code pattern helps keep a memory allocation and address mapping operation easy to audit when the source example is `map_upage`?" }, { "from": "gpt", "value": "Use a validate-then-mutate shape so all side effects are visible after the checks.\n####\nThe sou...
[ { "from": "human", "value": "How do I diagnose a regression in a memory allocation and address mapping path when the source example is `map_upage`?" }, { "from": "gpt", "value": "Trace the inputs, the derived values, and the exact state writes in execution order.\n####\n`map_upage` gives a concr...
[ { "from": "human", "value": "How should a memory allocation and address mapping routine fit into a larger kernel subsystem when the source example is `map_upage`?" }, { "from": "gpt", "value": "It should expose one clear behavior and leave unrelated policy to the surrounding subsystem.\n####\nTh...
[ { "from": "human", "value": "What should failure handling look like in memory allocation and address mapping code when the source example is `map_upage`?" }, { "from": "gpt", "value": "Failure handling should leave shared state either unchanged or deliberately marked as failed.\n####\nA grounded...
[ { "from": "human", "value": "How do I avoid off-by-one and bounds errors in memory allocation and address mapping code when the source example is `map_upage`?" }, { "from": "gpt", "value": "Compute limits once, check them before memory access, and advance cursors in one consistent place.\n####\n...
[ { "from": "human", "value": "How should I reason about a memory allocation and address mapping routine in kernel when the source example is `unmap_page`?" }, { "from": "gpt", "value": "`unmap_page` is a concrete example of a memory allocation and address mapping routine: it creates virtual-to-ph...
[ { "from": "human", "value": "How can I implement a memory allocation and address mapping helper without breaking nearby kernel code when the source example is `unmap_page`?" }, { "from": "gpt", "value": "Follow the existing ownership and state-update pattern instead of inventing a second path.\n...
[ { "from": "human", "value": "Why can bugs appear in memory allocation and address mapping code when state is updated in the wrong order and the source example is `unmap_page`?" }, { "from": "gpt", "value": "These bugs usually happen when bookkeeping changes are separated from the operation they ...
[ { "from": "human", "value": "How should I test a memory allocation and address mapping routine in low-level C code when the source example is `unmap_page`?" }, { "from": "gpt", "value": "Test the normal path, the boundary path, and the failure path with observable state before and after each cal...
[ { "from": "human", "value": "How can I refactor memory allocation and address mapping code while keeping behavior stable when the source example is `unmap_page`?" }, { "from": "gpt", "value": "Separate decoding, validation, state mutation, and reporting only where the source already shows a usef...
[ { "from": "human", "value": "How should another module call into a memory allocation and address mapping function safely when the source example is `unmap_page`?" }, { "from": "gpt", "value": "Call it only after preparing the state it expects and be ready for its existing failure convention.\n##...
[ { "from": "human", "value": "What edge cases matter for memory allocation and address mapping code in a kernel when the source example is `unmap_page`?" }, { "from": "gpt", "value": "The important edge cases are the ones that stress bounds, ownership, and partial progress.\n####\nIn the source, ...
[ { "from": "human", "value": "What small code pattern helps keep a memory allocation and address mapping operation easy to audit when the source example is `unmap_page`?" }, { "from": "gpt", "value": "Use a validate-then-mutate shape so all side effects are visible after the checks.\n####\nThe so...
[ { "from": "human", "value": "How do I diagnose a regression in a memory allocation and address mapping path when the source example is `unmap_page`?" }, { "from": "gpt", "value": "Trace the inputs, the derived values, and the exact state writes in execution order.\n####\n`unmap_page` gives a con...
[ { "from": "human", "value": "How should a memory allocation and address mapping routine fit into a larger kernel subsystem when the source example is `unmap_page`?" }, { "from": "gpt", "value": "It should expose one clear behavior and leave unrelated policy to the surrounding subsystem.\n####\nT...
[ { "from": "human", "value": "What should failure handling look like in memory allocation and address mapping code when the source example is `unmap_page`?" }, { "from": "gpt", "value": "Failure handling should leave shared state either unchanged or deliberately marked as failed.\n####\nA grounde...
[ { "from": "human", "value": "How do I avoid off-by-one and bounds errors in memory allocation and address mapping code when the source example is `unmap_page`?" }, { "from": "gpt", "value": "Compute limits once, check them before memory access, and advance cursors in one consistent place.\n####\...
[ { "from": "human", "value": "How should I reason about a memory allocation and address mapping routine in kernel when the source example is `virt_to_phys`?" }, { "from": "gpt", "value": "`virt_to_phys` is a concrete example of a memory allocation and address mapping routine: it implements memory...
[ { "from": "human", "value": "How can I implement a memory allocation and address mapping helper without breaking nearby kernel code when the source example is `virt_to_phys`?" }, { "from": "gpt", "value": "Follow the existing ownership and state-update pattern instead of inventing a second path....
[ { "from": "human", "value": "Why can bugs appear in memory allocation and address mapping code when state is updated in the wrong order and the source example is `virt_to_phys`?" }, { "from": "gpt", "value": "These bugs usually happen when bookkeeping changes are separated from the operation the...
[ { "from": "human", "value": "How should I test a memory allocation and address mapping routine in low-level C code when the source example is `virt_to_phys`?" }, { "from": "gpt", "value": "Test the normal path, the boundary path, and the failure path with observable state before and after each c...
[ { "from": "human", "value": "How can I refactor memory allocation and address mapping code while keeping behavior stable when the source example is `virt_to_phys`?" }, { "from": "gpt", "value": "Separate decoding, validation, state mutation, and reporting only where the source already shows a us...
[ { "from": "human", "value": "How should another module call into a memory allocation and address mapping function safely when the source example is `virt_to_phys`?" }, { "from": "gpt", "value": "Call it only after preparing the state it expects and be ready for its existing failure convention.\n...
[ { "from": "human", "value": "What edge cases matter for memory allocation and address mapping code in a kernel when the source example is `virt_to_phys`?" }, { "from": "gpt", "value": "The important edge cases are the ones that stress bounds, ownership, and partial progress.\n####\nIn the source...
[ { "from": "human", "value": "What small code pattern helps keep a memory allocation and address mapping operation easy to audit when the source example is `virt_to_phys`?" }, { "from": "gpt", "value": "Use a validate-then-mutate shape so all side effects are visible after the checks.\n####\nThe ...
[ { "from": "human", "value": "How do I diagnose a regression in a memory allocation and address mapping path when the source example is `virt_to_phys`?" }, { "from": "gpt", "value": "Trace the inputs, the derived values, and the exact state writes in execution order.\n####\n`virt_to_phys` gives a...
[ { "from": "human", "value": "How should a memory allocation and address mapping routine fit into a larger kernel subsystem when the source example is `virt_to_phys`?" }, { "from": "gpt", "value": "It should expose one clear behavior and leave unrelated policy to the surrounding subsystem.\n####\...
[ { "from": "human", "value": "What should failure handling look like in memory allocation and address mapping code when the source example is `virt_to_phys`?" }, { "from": "gpt", "value": "Failure handling should leave shared state either unchanged or deliberately marked as failed.\n####\nA groun...
[ { "from": "human", "value": "How do I avoid off-by-one and bounds errors in memory allocation and address mapping code when the source example is `virt_to_phys`?" }, { "from": "gpt", "value": "Compute limits once, check them before memory access, and advance cursors in one consistent place.\n###...