Comment # 10 on bug 1045340 from Vlastimil Babka

(In reply to Vlastimil Babka from comment #9)
> Catchpoint 1 (call to syscall mmap2), 0xf7fd9f89 in __kernel_vsyscall ()

(gdb) bt
#0  0xf7fd9f89 in __kernel_vsyscall ()
#1  0xf7454508 in mmap () from /lib/libc.so.6
#2  0xf7a51cdb in os::commit_memory(char*, unsigned int, bool) () from
/opt/novell/groupwise/client/java/lib/i386/client/libjvm.so
#3  0xf7afd1be in JavaThread::create_stack_guard_pages() () from
/opt/novell/groupwise/client/java/lib/i386/client/libjvm.so
#4  0xf7afedd3 in Threads::create_vm(JavaVMInitArgs*, bool*) () from
/opt/novell/groupwise/client/java/lib/i386/client/libjvm.so
#5  0xf7960566 in JNI_CreateJavaVM () from
/opt/novell/groupwise/client/java/lib/i386/client/libjvm.so
#6  0x08048dc3 in LaunchJavaVm (argc=0, argv=0xffffd528,
szPathToClientDir=0xffffd068 "/opt/novell/groupwise/client") at
grpwisex.cpp:380
#7  0x080497a3 in main (argc=1, argv=0xffffd524) at grpwisex.cpp:473

> Catchpoint 2 (call to syscall mprotect), 0xf7fd9f89 in __kernel_vsyscall ()
(gdb) bt
#0  0xf7fd9f89 in __kernel_vsyscall ()
#1  0xf74545f9 in mprotect () from /lib/libc.so.6
#2  0xf7a525b9 in os::guard_memory(char*, unsigned int) () from
/opt/novell/groupwise/client/java/lib/i386/client/libjvm.so
#3  0xf7afd1e2 in JavaThread::create_stack_guard_pages() () from
/opt/novell/groupwise/client/java/lib/i386/client/libjvm.so
#4  0xf7afedd3 in Threads::create_vm(JavaVMInitArgs*, bool*) () from
/opt/novell/groupwise/client/java/lib/i386/client/libjvm.so
#5  0xf7960566 in JNI_CreateJavaVM () from
/opt/novell/groupwise/client/java/lib/i386/client/libjvm.so
#6  0x08048dc3 in LaunchJavaVm (argc=0, argv=0xffffd528,
szPathToClientDir=0xffffd068 "/opt/novell/groupwise/client") at
grpwisex.cpp:380
#7  0x080497a3 in main (argc=1, argv=0xffffd524) at grpwisex.cpp:473

At least we see it's done by java itself and not glibc.