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8330275: Crash in XMark::follow_array

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Reviewed-by: stefank, stuefe
This commit is contained in:
Ashutosh Mehra 2024-05-08 20:26:02 +00:00
parent 230fac80f2
commit 42b1d858d1
2 changed files with 10 additions and 6 deletions
src/hotspot/cpu/aarch64/gc
x
xGlobals_aarch64.cpp
z
zAddress_aarch64.cpp

8
src/hotspot/cpu/aarch64/gc/x/xGlobals_aarch64.cpp

@ -142,9 +142,11 @@
// * 63-48 Fixed (16-bits, always zero)
//
// Default value if probing is not implemented for a certain platform: 128TB
static const size_t DEFAULT_MAX_ADDRESS_BIT = 47;
// Minimum value returned, if probing fails: 64GB
// Default value if probing is not implemented for a certain platform
// Max address bit is restricted by implicit assumptions in the code, for instance
// the bit layout of XForwardingEntry or Partial array entry (see XMarkStackEntry) in mark stack
static const size_t DEFAULT_MAX_ADDRESS_BIT = 46;
// Minimum value returned, if probing fails
static const size_t MINIMUM_MAX_ADDRESS_BIT = 36;
static size_t probe_valid_max_address_bit() {

8
src/hotspot/cpu/aarch64/gc/z/zAddress_aarch64.cpp

@ -36,9 +36,11 @@
#include <sys/mman.h>
#endif // LINUX
// Default value if probing is not implemented for a certain platform: 128TB
static const size_t DEFAULT_MAX_ADDRESS_BIT = 47;
// Minimum value returned, if probing fails: 64GB
// Default value if probing is not implemented for a certain platform
// Max address bit is restricted by implicit assumptions in the code, for instance
// the bit layout of XForwardingEntry or Partial array entry (see XMarkStackEntry) in mark stack
static const size_t DEFAULT_MAX_ADDRESS_BIT = 46;
// Minimum value returned, if probing fail
static const size_t MINIMUM_MAX_ADDRESS_BIT = 36;
static size_t probe_valid_max_address_bit() {