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8267213: cpuinfo_segv is incorrectly triaged as execution protection violation on x86_32

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Reviewed-by: dholmes
This commit is contained in:
Jie Fu 2021-05-25 11:49:58 +00:00
parent 66b190e1e7
commit b403d39908
2 changed files with 2 additions and 0 deletions
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1
src/hotspot/os_cpu/bsd_x86/os_bsd_x86.cpp
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@ -551,6 +551,7 @@ bool PosixSignals::pd_hotspot_signal_handler(int sig, siginfo_t* info,
// the si_code for this condition may change in the future.
// Furthermore, a false-positive should be harmless.
if (UnguardOnExecutionViolation > 0 &&
stub == NULL &&
(sig == SIGSEGV || sig == SIGBUS) &&
uc->context_trapno == trap_page_fault) {
int page_size = os::vm_page_size();

1
src/hotspot/os_cpu/linux_x86/os_linux_x86.cpp
View File

@ -343,6 +343,7 @@ bool PosixSignals::pd_hotspot_signal_handler(int sig, siginfo_t* info,
// the si_code for this condition may change in the future.
// Furthermore, a false-positive should be harmless.
if (UnguardOnExecutionViolation > 0 &&
stub == NULL &&
(sig == SIGSEGV || sig == SIGBUS) &&
uc->uc_mcontext.gregs[REG_TRAPNO] == trap_page_fault) {
int page_size = os::vm_page_size();