Is anyone getting unexpected signal 11 errors?

Question

Sometimes get this error on the jvm it crashes and have seen it when using iasdeploy. Have only seen this error since upgrading to 6.5 (1.3.1_02-b02 mixed mode)
this is on solaris.

Answer 1

Yes. The typical scenario we saw was that while j2eeappreg was running, if someone was to hit any JSP / servlet on the server, the jvm would crash with a signal 11 error. We are on iAS 6.0 SP1B. If that is the same error you are having - We did implement a fix suggested by iPlanet and it worked. Below is a cut-paste from one of the mails from iPlanet.
The error is believed to be with the c/c++ stack size set for the JRE. This can be tuned using the kjs script, and increasing the value of -Xss in the JAVA_ARGS. I believe the default is set at 512 k or 1 m. In general a formula to find the optimal value is, (no. of registry entries / 10k).
To find the no. of registry entries, do a
kreg -save regfile SOFTWARE
wc -l regfile
and multiply this value by 1/10 kbytes. If you have 3000 entries, then set the -Xss value to 300k.
In our case, the JAVA_ARGS now looks like this -
JAVA_ARGS="-Xss1m -Xms64m -Xmx256m"
and the error no longer happens again.