src/os_cpu/linux_x86/vm/os_linux_x86.cpp

rev 8961 : [mq]: diff-shenandoah.patch

*** 433,442 ****
--- 433,458 ----
        os::block_on_serialize_page_trap();
        return true;
      }
    }
  
+     if ((sig == SIGSEGV) && UseShenandoahGC
+         && (ShenandoahVerifyWritesToFromSpace || ShenandoahVerifyReadsToFromSpace)) {
+       if (Universe::heap()->is_in(info->si_addr)) {
+         tty->print("OK, we got the SIGSEGV,on address %p now what?\n", (address) info->si_addr);
+         ucontext_t* uc = (ucontext_t*) ucVoid;
+         address pc = (address) os::Linux::ucontext_get_pc(uc);
+         os::print_context(tty, ucVoid);
+         Universe::heap()->print();
+         if (ShenandoahVerifyReadsToFromSpace) {
+           assert(false, "Illegal read to From Space");
+         } else {
+           assert(false, "Illegal write to From Space");
+         }
+       }
+     }
+ 
  #ifndef AMD64
    // Execution protection violation
    //
    // This should be kept as the last step in the triage.  We don't
    // have a dedicated trap number for a no-execute fault, so be