Formsbuilder Crashes With Segmentation Fault

Subject:	Formsbuilder Crashes With Segmentation Fault
	Doc ID:	363976.1	Type:	PROBLEM
	Modified Date :	10-JAN-2008	Status:	PUBLISHED

In this Document   Symptoms   Cause   Solution   References Applies to: Oracle Forms - Version: 9.0.4 to 10.1.2.0.2 Linux x86 Checked relevance 10-Jan-2008 Symptoms When attempting to launch frmbld.sh, forms builder crashes with segmentation fault. Error Details: Segmentation fault with no core dump. Doing an strace will have these lines at the end of tail 10934 sigaltstack({ss_sp=0xbfe04000, ss_flags=0, ss_size=40960}, NULL) = 0 10934 rt_sigaction(SIGHUP, NULL, {SIG_DFL}, 8) = 0 10934 rt_sigaction(SIGINT, NULL, {SIG_DFL}, 8) = 0 10934 rt_sigaction(SIGTERM, NULL, {SIG_DFL}, 8) = 0 10934 rt_sigprocmask(SIG_UNBLOCK, [HUP INT QUIT USR2 TERM CHLD], NULL, 8) = 0 10934 --- SIGSEGV (Segmentation fault) @ 0 (0) --- 10934 --- SIGSEGV (Segmentation fault) @ 0 (0) --- 10934 +++ killed by SIGSEGV +++ Cause Problem with SUN Java version running on Xeon or AMD64 64-bit CPU running on Linux RH. The updated kernel added "non executable stack" feature. This is a new security enhancement. This is explained in the following  internal Bug: 4175691  - OUI QUITS WITH NO ERROR According to Sun, this problem is fixed in Sun JRE 1.4.2_08(b02) http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6178600 Solution Objective: Boot with kernel option 'noexec=off' Steps to follow: 1. Login as root 2. Backup /boot/grub/grub.conf 3. Modify /boot/grub/grub.conf and add new kernel menu with "noexec=off" flag. Example: jdefault=0 timeout=10 splashimage=(hd0,0)/grub/splash.xpm.gz title Red Hat Enterprise Linux AS (2.4.21-15.EL) root (hd0,0) kernel /vmlinuz-2.4.21-15.EL ro root=LABEL=/ initrd /initrd-2.4.21-15.EL.img title Red Hat Enterprise Linux AS (2.4.21-15.EL) noexec=off root (hd0,0) kernel /vmlinuz-2.4.21-15.EL ro root=LABEL=/ noexec=off initrd /initrd-2.4.21-15.EL.img 4. Reboot the machine 5.Verify if system booted with noexec=off: # cat /proc/cmdline ro root=/dev/sda5 console=ttyS0,115200 console=tty0 noexec=off 6. Start forms builder now: ./frmbld.sh Remark: This problem has also been related to Oracle Report server and Oracle Universal Installer Note 276802.1 - Runinstaller Crash Immediatly When Run Note 331919.1 - Rwserver.Sh Is Generating Segmentation Fault but not Core Dump File