PANIC: Kernel mode trap

[Jim Davis]

erekose at apple.com (Erik Scheelke) writes:

>I am looking for any information about the following panic that occurs
>occasionally on my system:

>PANIC: Kernel mode trap    type 0x0000000e

>Has anyone else every seen this?  I am using Intel's version of AT&T Unix
>System V 3.2.2.  I have their TCP/IP and NFS installed also.  The reason
>I mention this is that there is a small correlation between when the panic
>occurs and network traffic into (not out from tho...) the system.

>Can anyone explain what causes a Kernel mode trap in general?  Type 0x0e?

>Thank you for any help!

>Erik Scheelke


I had the same type of trap with version 3.2.1.  In my case, I think I
didn't have enough stream data buffers allocated, so when network traffic
got out of hand, the system crashed.  You can check to see if this is
a problem by running "crash" as root and typing "strstat".  This will
give you a list of stream buffers (by size) and what the high water
mark is.  The default was 384 buffers for the 64-byte and 128-byte buffers,
and I gradually increased that to 1024 for each before it stopped crashing.

Sometime later, I installed 3.2.2 and the system strated crashing again,
so I'll have to do this again.

Good Luck!

Jim Davis
davis at isuee1.ee.iastate.edu