Description of problem:
Running lsof enough times results in a kernel crash.  Possible to do as a
non-root user.

Version-Release number of selected component (if applicable):
lsof-4.72-1.1
kernel-smp-2.6.9-34.EL

How reproducible:
Run this as any user:
while sleep 1; do for i in {1..100}; do /usr/sbin/lsof > /dev/null & done ; done
Give it several minutes.

(also possible to reproduce with much more reasonable uses of lsof, such as
something equivalent to "while sleep 60 ; do lsof ; done", but that takes
several days)

Steps to Reproduce:
1. Boot up RHEL4AS Update 3
2. run lsof a bunch of times, such as "while sleep 1; do for i in {1..100}; do
/usr/sbin/lsof > /dev/null & done ; done"
3. wait several minutes
  
Actual results:
kernel panic.  messages left on screen show the process as lsof and a call trace
showing seq_read, vfs_read, sys_read, syscall_call and schedule.

Expected results:
Not crashing.

Additional info:
Able to reproduce on several different systems with a 2.6.9-34 SMP kernel;
unable to reproduce on 2.6.9-22.0.1