84 lines
2.1 KiB
Bash
Executable File
84 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2014 EMC Corp.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# "panic: pmap_unwire: pte 0x672d405 is missing PG_W" seen.
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# http://people.freebsd.org/~pho/stress/log/mmap20.txt
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# Test scenario by: Mark Johnston markj@
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# Fixed by r272036
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. ../default.cfg
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dir=/tmp
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odir=`pwd`
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cd $dir
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sed '1,/^EOF/d' < $odir/$0 > $dir/mmap20.c
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mycc -o mmap20 -O2 -Wall -Wextra mmap20.c || exit 1
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rm -f mmap20.c
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cd $odir
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/tmp/mmap20
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s=$?
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rm -f /tmp/mmap20
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exit $s
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EOF
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <err.h>
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#include <stdlib.h>
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int
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main(void)
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{
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char *ptr;
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size_t sz;
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sz = 4096;
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ptr = mmap(NULL, sz, PROT_READ, MAP_ANON, -1, 0);
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if (ptr == NULL)
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err(1, "mmap");
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if (mlock(ptr, sz) != 0)
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err(1, "mlock");
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if (mprotect(ptr, sz, PROT_EXEC) != 0)
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err(1, "mprotect");
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if (madvise(ptr, sz, MADV_WILLNEED) != 0)
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err(1, "madvise");
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if (munlock(ptr, sz) != 0)
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err(1, "munlock");
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return (0);
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}
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