Date: Tue, 12 Oct 1999 06:14:58 -0700 (PDT) From: amobbs@allstor-sw.co.uk To: freebsd-gnats-submit@freebsd.org Subject: kern/14285: NFS client appears to lose data Message-ID: <19991012131458.4F78415B1E@hub.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 14285
>Category: kern
>Synopsis: NFS client appears to lose data
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Oct 12 06:20:00 PDT 1999
>Closed-Date:
>Last-Modified:
>Originator: Andrew Mobbs
>Release: 3.3-RC
>Organization:
Allstor Software
>Environment:
FreeBSD symbiosis.software.plasmon 3.3-RC FreeBSD 3.3-RC #0: Tue Sep 14 11:39:37 BST 1999 root@symbiosis.software.plasmon:/usr/src/sys/compile/990820symbiosis i386
>Description:
As far as I can tell, the following program will lose data on a
FreeBSD->FreeBSD NFS mount, but not on a
FreeBSD->{Solaris,Linux,AIX} or a {Solaris,Linux}->FreeBSD mount
(Notation is server->client)
All mounts are hard. NFS options are whatever the default on a given
platform is.
Network is 100MBps switched ethernet.
The output file "testfile" loses occasional characters
OS versions:
Solaris 2.5.1 (sparc)
Linux 2.2.10 (i386)
FreeBSD 3.3-RC (client) (i386)
FreeBSD 3.2-R (server) (i386)
AIX 4.2 (rs6000)
>How-To-Repeat:
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
#include <errno.h>
#include <sys/types.h>
main(void){
int error=0,len,i;
FILE *fp;
pid_t mypid;
char str[80];
init_mutex(&mutex);
srandom(time(NULL));
mypid=getpid();
sprintf(str,"Hello, I'm process %d.\n",mypid);
len=strlen(str);
if((fp=fopen("testfile","a+"))==NULL){
fprintf(stderr,"Cannot open testfile failed %d\n",errno);
exit(1);
}
for(;;){
for(i=0;i<len;i++){
fputc(str[i],fp);
usleep((random()%1000)*100);
fflush(fp);
}
}
}
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-bugs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19991012131458.4F78415B1E>