Date: Sat, 13 Jan 1996 23:28:56 -0500 (EST) From: Sujal Patel <smpatel@wam.umd.edu> To: current@freebsd.org Subject: ktrace causes vm_page_free: freeing busy page Message-ID: <Pine.BSF.3.91.960113232214.350A-100000@sl-015.sl.cybercomm.net>
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I think this was discussed a few months ago, but I'm pretty sure that
this was fixed pretty quickly last time... Well it's back :)
ktrace works for some things, but the following will panic the kernel in
about 10-15 seconds (for me). I'm running -current from a few days ago.
[smpatel:sl-015] [0:~]> cat panicme.c
#include <stdio.h>
#include <fcntl.h>
main () {
int f = open ("/etc/motd", O_RDONLY);
while (1)
lseek (f, 0, SEEK_SET);
}
[smpatel:sl-015] [0:~]> cc panicme.c
[smpatel:sl-015] [0:~]> ktrace ./a.out
panic: vm_page_free: freeing busy page
Sujal
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