Date: Wed, 17 Dec 2008 06:30:14 GMT From: Bruce Cran <bruce@cran.org.uk> To: freebsd-gnats-submit@FreeBSD.org Subject: bin/129706: top(1) corrupts SIZE field when a process allocates 2048GB memory Message-ID: <200812170630.mBH6UEhX015752@www.freebsd.org> Resent-Message-ID: <200812170640.mBH6e1nC061362@freefall.freebsd.org>
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>Number: 129706
>Category: bin
>Synopsis: top(1) corrupts SIZE field when a process allocates 2048GB memory
>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: Wed Dec 17 06:40:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator: Bruce Cran
>Release: 7.1-RC1
>Organization:
>Environment:
FreeBSD 7.1-RC1 amd64
>Description:
When a process allocates over 2TB, top can corrupt the SIZE field and display a series of characters instead. It only appears to happen on TB boundaries - i.e 2048GB, 3072GB etc. 7.1-RC1 and 8-CURRENT (from 2008-12-15) both show the problem.
>How-To-Repeat:
Compile the following code and once running run top to see the process listed.
#include <stdlib.h>
int main(void)
{
char *c = malloc(2048LL*1024*1024*1024);
getchar();
return 0;
}
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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