Date: Fri, 17 Jan 2003 15:53:46 -0500 (EST) From: Hal Burch <hburch@lumeta.com> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/47168: st_*timespec tv_nsec zero on file creation Message-ID: <20030117205346.6118B5E3@hburch.corp.lumeta.com>
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>Number: 47168
>Category: kern
>Synopsis: st_*timespec tv_nsec zero on file creation
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Jan 17 13:00:22 PST 2003
>Closed-Date:
>Last-Modified:
>Originator: Hal Burch
>Release: FreeBSD 4.7-STABLE i386
>Organization:
>Environment:
System: FreeBSD hburch.corp.lumeta.com 4.7-STABLE FreeBSD 4.7-STABLE #1: Thu Oct 17 10:07:42 EDT 2002 root@hburch.corp.lumeta.com:/usr/obj/usr/src/sys/LOCAL i386
>Description:
tv_nsec in st_atimespec, st_mtimespec, and st_ctimespec are all zero
after most system calls.
>How-To-Repeat:
stat-ing code:
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
int main(int argc, char **argv) {
struct stat sb;
if (argc < 2) { fprintf (stderr, "No args\n"); exit(1); }
if (stat(argv[1], &sb) < 0) { perror("stat"); exit(1); }
fprintf (stdout, "%i.%09i\n",
sb.st_atimespec.tv_sec, sb.st_atimespec.tv_nsec);
}
$ rm -f a; touch a; ./dostat a
1042836075.000000000
$ rm -f a; touch a; ./dostat a
1042836079.000000000
$ cat a; ./dostat a
1042836123.000000000
$ rm a; >a; ./dostat a
1042836191.000000000
>Fix:
I'm not familiar enough with the kernel tree to figure out where this
system times are being set. This may also be expected behavior.
>Release-Note:
>Audit-Trail:
>Unformatted:
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