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loader: Bump the limit to 560,000 bytes for BIOS loader
Further experience suggests we do not need as much margin. This was mistakenly bumped to 570,000 in a prior commit, so this undoes that. Sponsored by: Netflix
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@ -1,4 +1,3 @@
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HAVE_ZFS= ${MK_LOADER_ZFS}
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LOADER_NET_SUPPORT?= yes
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@ -23,7 +22,7 @@ VERSION_FILE= ${.CURDIR}/../loader/version
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# non-random survey suggests that 20k-25k is a good value for 'most' machines.
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# We also need to subtract maximum stack usage (20-25k).
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#
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# So 640k - 40k - 25k - 25k = 550k = 563,200 bytes, but use 550,000 below for
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# So 640k - 40k - 25k - 25k = 550k = 563,200 bytes, but use 560,000 below for
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# some extra buffer for more complex setups and/or wider BIOS lomem variation.
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#
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# Some systems use more stack or have BIOS reserve more RAM (or both), and will
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@ -33,7 +32,7 @@ VERSION_FILE= ${.CURDIR}/../loader/version
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#
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# will tell you how many kiB of lomem are available.
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#
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LOADERSIZE?= 570000 # Largest known safe size for loader.bin
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LOADERSIZE?= 560000 # Largest known safe size for loader.bin
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.PATH: ${BOOTSRC}/i386/loader
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