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Fix virtual arena memory block overcommit bug #5821

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This commit is contained in:
Shane Shrybman
2026-03-09 14:58:58 -04:00
parent 5a82f06ba1
commit 5d80809dc8
2 changed files with 4 additions and 4 deletions
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4
core/mem/virtual/arena.odin
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@@ -141,9 +141,9 @@ arena_alloc_unguarded :: proc(arena: ^Arena, size: uint, alignment: uint, loc :=
needed := mem.align_forward_uint(size, alignment)
needed = max(needed, arena.default_commit_size)
block_size := max(needed, arena.minimum_block_size)
block_size := max(needed, arena.minimum_block_size) + alignment
new_block := memory_block_alloc(needed, block_size, alignment, {}) or_return
new_block := memory_block_alloc(needed, block_size) or_return
new_block.prev = arena.curr_block
arena.curr_block = new_block
arena.total_reserved += new_block.reserved

4
core/mem/virtual/virtual.odin
View File

@@ -154,7 +154,7 @@ alloc_from_memory_block :: proc(block: ^Memory_Block, min_size, alignment: uint,
pmblock.committed = platform_total_commit
block.committed = pmblock.committed - base_offset
assert(block.committed <= block.reserved)
}
return
}
@@ -174,7 +174,7 @@ alloc_from_memory_block :: proc(block: ^Memory_Block, min_size, alignment: uint,
err = .Out_Of_Memory
return
}
assert(block.committed <= block.reserved)
do_commit_if_necessary(block, size, default_commit_size) or_return
data = block.base[block.used+alignment_offset:][:min_size]