linux-user: mmap_reserve() not controlled by RESERVED_VA
mmap_reserve() should be called only when RESERVED_VA is enabled. Otherwise, unmaped virtual address space will never be reusable. This bug will exhaust virtual address space in extreme conditions. Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
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@ -697,7 +697,9 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
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old_size, new_size,
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old_size, new_size,
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flags | MREMAP_FIXED,
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flags | MREMAP_FIXED,
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g2h(mmap_start));
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g2h(mmap_start));
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mmap_reserve(old_addr, old_size);
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if ( RESERVED_VA ) {
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mmap_reserve(old_addr, old_size);
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}
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}
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}
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} else {
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} else {
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int prot = 0;
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int prot = 0;
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