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8065050: vm crashes during CDS dump when very small SharedMiscDataSize is specified

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Define minimum required sizes for the ro, rw, and md regions and make sure the specified sizes are not less than the minimum sizes

Reviewed-by: jiangli, dholmes, mseledtsov
This commit is contained in:
Calvin Cheung 2014-12-05 12:24:10 -08:00
parent ea256a978f
commit 701b666284
3 changed files with 129 additions and 21 deletions
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5
hotspot/src/share/vm/memory/metaspaceShared.hpp
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@ -69,6 +69,11 @@ class MetaspaceShared : AllStatic {
vtbl_common_code_size = (1*K) // conservative size of the "common_code" for the x64 platform
};
enum {
min_ro_size = NOT_LP64(8*M) LP64_ONLY(9*M), // minimum ro and rw regions sizes based on dumping
min_rw_size = NOT_LP64(7*M) LP64_ONLY(12*M) // of a shared archive using the default classlist
};
enum {
ro = 0, // read-only shared space in the heap
rw = 1, // read-write shared space in the heap