Date: Sat, 5 Mar 2022 20:26:40 +0100 From: Peter <pmc@citylink.dinoex.sub.org> To: freebsd-stable@freebsd.org Subject: Program crashes on stable/13 (but not on 12.3) Message-ID: <YiO5cO967R/D2cIm@gate.intra.daemon.contact>
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Hija,
this program crashes SEGV on stable/13 after 135962 iterations,
but continues to run on 12.3.
My stable/13 is still at 22ba2970766 - if You happen to be on a
newer level, then please just try this out.
------------------------------------------------------
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
main() {
char buf[] = "12345678901234567890123456789012345678901234567890";
int fd = open("/dev/null", O_RDONLY);
int i = 0;
close(1);
dup2(fd, 1);
close(fd);
while(1) {
fputs(buf, stdout);
fflush(stdout);
i++;
fprintf(stderr, "%d\n", i);
}
}
------------------------------------------------------
I know that the code is bogus, but this is exactly what one of our
ports does (and why it started to crash after upgrading to stable/13).
And I think it should not SEGV, anyway.
For the full story, read here:
https://forums.freebsd.org/threads/random-program-crashes-no-coredumps-and-error-94.84285/
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