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Try reduce vma count on host to prevent panic because of too much mprotect

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Hui, Chunyang 2021-10-21 09:32:13 +00:00 committed by Zongmin.Gu
parent 4f23cca048
commit fa69b3d0d1
1 changed files with 3 additions and 0 deletions
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src/libos/src/vm/vm_manager.rs
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@ -783,6 +783,9 @@ impl InternalVMManager {
// Remove from chunks // Remove from chunks
self.chunks.remove(chunk); self.chunks.remove(chunk);
// Mprotect the whole chunk to reduce the usage of vma count of host
VMPerms::apply_perms(range, VMPerms::DEFAULT);
// Add range back to freespace manager // Add range back to freespace manager
self.free_manager.add_range_back_to_free_manager(range); self.free_manager.add_range_back_to_free_manager(range);
Ok(()) Ok(())