Hi all, We saw crashes when connecting to a target VM using com.sun.tools.attach.WindowsVirtualMachine when injecting VM was compiled with /RTC1.
The error turned out to be in VirtualMachineImpl.c: the function "jvm_attach_thread_func" - the one which is injected into the target VM and used as thread entry point for CreateRemoteThread() - must be compiled with runtime checks disabled in order to keep the code-to-inject position independent. Using /rtc1 will cause the Microsoft compiler to generate relative calls to a check function ("_RTC_CheckEsp") which will not work if code is planted in target process at a different address. This change adds a pragma to locally disable the runtime checks and re-enable them below the function. http://cr.openjdk.java.net/~simonis/webrevs/8059868/ Kind regards, Thomas Stuefe