LadybirdBrowser/ladybird
1
1
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2024-09-20 01:37:39 +03:00
Code Issues Packages Projects Releases Wiki Activity

Kernel: Cut allocation size for physical buddy bitmaps in half

Browse Source 
We were allocating twice as much memory as we needed for these bitmaps
due to a silly typo. Found by tomuta trying to boot with 24 GiB of RAM.
This commit is contained in:
Andreas Kling 2021-07-13 23:43:31 +02:00
parent eb7b755937
commit 6cc1247395
Notes: sideshowbarker 2024-07-18 09:06:19 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/6cc12473958
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Kernel/VM/PhysicalZone.cpp
View File

@ -25,7 +25,7 @@ PhysicalZone::PhysicalZone(PhysicalAddress base_address, size_t page_count)
for (int order = max_order; order >= 0; --order) {
auto& bucket = m_buckets[order];
size_t block_size = 2u << order;
size_t bitmap_size_for_order = ceil_div((size_t)(chunk_count / block_size), (size_t)1);
size_t bitmap_size_for_order = ceil_div((size_t)(chunk_count / block_size), (size_t)2);
bucket.order = order;
if (bitmap_size_for_order)
bucket.bitmap.grow(bitmap_size_for_order, false);