Index: user/pho/stress2/misc/msync.sh =================================================================== --- user/pho/stress2/misc/msync.sh (revision 317674) +++ user/pho/stress2/misc/msync.sh (revision 317675) @@ -1,203 +1,204 @@ #!/bin/sh # # Copyright (c) 2013 Peter Holm # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF # SUCH DAMAGE. # # $FreeBSD$ # # msync(2) / mlockall(2) test scenario. # "panic: vm_fault_copy_wired: page missing" seen. # http://people.freebsd.org/~pho/stress/log/msync.txt # Fixed in r253189. [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 . ../default.cfg dir=/tmp odir=`pwd` cd $dir sed '1,/^EOF/d' < $odir/$0 > $dir/msync.c mycc -o msync -Wall -Wextra msync.c -lpthread || exit 1 rm -f msync.c cd $odir -/tmp/msync - -killall msync > /dev/null 2>&1 +/tmp/msync & +sleep 180 +while pkill -9 msync; do :; done +wait rm -f /tmp/msync exit EOF #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int syscallno = SYS_msync; #define N (128 * 1024 / (int)sizeof(u_int32_t)) u_int32_t r[N]; static void hand(int i __unused) { /* handler */ _exit(1); } unsigned long makearg(void) { unsigned int i; unsigned long val; val = arc4random(); i = arc4random() % 100; if (i < 20) val = val & 0xff; if (i >= 20 && i < 40) val = val & 0xffff; if (i >= 40 && i < 60) val = (unsigned long)(r) | (val & 0xffff); #if defined(__LP64__) if (i >= 60) { val = (val << 32) | arc4random(); if (i > 80) val = val & 0x00007fffffffffffUL; } #endif return(val); } void * calls(void *arg __unused) { int i, num; unsigned long arg1, arg2, arg3; usleep(1000); num = syscallno; for (i = 0; i < 500; i++) { arg1 = makearg(); arg2 = makearg(); #if 0 arg3 = makearg(); arg3 = arg3 & ~MS_INVALIDATE; /* No problem seen */ #else arg3 = MS_INVALIDATE; /* panic */ #endif #if 0 fprintf(stderr, "%2d : syscall(%3d, 0x%lx, 0x%lx, 0x%lx)\n", i, num, arg1, arg2, arg3); usleep(50000); #endif alarm(1); syscall(num, arg1, arg2, arg3); num = 0; } return (0); } void wd(void) { int i; if (mlockall(MCL_CURRENT | MCL_FUTURE) != 0) err(1, "mlockall failed"); for (i = 0; i < 800; i++) { if (fork() == 0) { usleep(20000); _exit(0); } wait(NULL); usleep(100000); } _exit(0); } int main(void) { struct passwd *pw; pthread_t cp[50]; int e, i, j; if (fork() == 0) wd(); if ((pw = getpwnam("nobody")) == NULL) err(1, "no such user: nobody"); if (setgroups(1, &pw->pw_gid) || setegid(pw->pw_gid) || setgid(pw->pw_gid) || seteuid(pw->pw_uid) || setuid(pw->pw_uid)) err(1, "Can't drop privileges to \"nobody\""); endpwent(); signal(SIGALRM, hand); signal(SIGILL, hand); signal(SIGFPE, hand); signal(SIGSEGV, hand); signal(SIGBUS, hand); signal(SIGURG, hand); signal(SIGSYS, hand); signal(SIGTRAP, hand); alarm(180); for (i = 0; i < 8000; i++) { if (fork() == 0) { arc4random_stir(); for (j = 0; j < N; j++) r[j] = arc4random(); for (j = 0; j < 50; j++) if ((e = pthread_create(&cp[j], NULL, calls, NULL)) != 0) errc(1, e, "pthread_create"); for (j = 0; j < 50; j++) pthread_join(cp[j], NULL); _exit(0); } wait(NULL); } return (0); } Index: user/pho/stress2/misc/msync2.sh =================================================================== --- user/pho/stress2/misc/msync2.sh (revision 317674) +++ user/pho/stress2/misc/msync2.sh (revision 317675) @@ -1,133 +1,133 @@ #!/bin/sh # # Copyright (c) 2013 EMC Corp. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF # SUCH DAMAGE. # # $FreeBSD$ # # "panic: vm_pageout_flush: partially invalid page xx index 0/1" seen. # Fixed in r255566. . ../default.cfg dir=/tmp odir=`pwd` cd $dir sed '1,/^EOF/d' < $odir/$0 > $dir/msync2.c mycc -o msync2 -Wall -Wextra msync2.c || exit 1 rm -f msync2.c cd $odir dd if=/dev/zero bs=$((4096 + 1)) of=/tmp/msync2.inputfile count=1 2>&1 | egrep -v "records|transferred" /tmp/msync2 /tmp/msync2.inputfile rm -f /tmp/msync2 /tmp/msync2.inputfile exit EOF #include #include #include #include #include #include #include #include #include #include -#define RUNTIME 300 +#define RUNTIME 400 const char *file; char c; void wr(void) { struct stat st; char *p1; size_t len; int error, fd; if ((fd = open(file, O_RDWR)) == -1) err(1, "open %s", file); if ((error = fstat(fd, &st)) == -1) err(1, "stat(%s)", file); len = round_page(st.st_size); if ((p1 = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) == MAP_FAILED) err(1, "mmap"); // p1[len - 1] = 1; /* No panic with this */ p1[arc4random() % len] = 1; /* Need this for the panic */ if ((error = msync(p1, len, MS_SYNC | MS_INVALIDATE)) == -1) if (errno != EBUSY) err(1, "msync"); if (munmap(p1, len) == -1) err(1, "unmap()"); close(fd); _exit(0); } void test(void) { #if 1 int i; for (i = 0; i < 3; i++) if (fork() == 0) wr(); for (i = 0; i < 3; i++) wait(NULL); #else wr(); /* No problem here */ #endif _exit(0); } int main(int argc, char *argv[]) { time_t start; if (argc != 2) errx(1, "Usage: %s ", argv[0]); file = argv[1]; start = time(NULL); while (time(NULL) - start < RUNTIME) { if (fork() == 0) test(); wait(NULL); } return (0); }