Date: Tue, 21 Mar 2000 06:40:12 -0800 (PST) From: elemiere@matra-ms2i.fr To: freebsd-gnats-submit@FreeBSD.org Subject: i386/17526: PB of frequency heuristic in uipc_socket.c in FreeBSD 3.4 Message-ID: <200003211440.GAA69316@freefall.freebsd.org>
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>Number: 17526
>Category: i386
>Synopsis: PB of frequency heuristic in uipc_socket.c in FreeBSD 3.4
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Mar 21 06:50:02 PST 2000
>Closed-Date:
>Last-Modified:
>Originator: Eric Lemiere
>Release: FreeBSD 3.4
>Organization:
MS&I
>Environment:
>Description:
Here it is:
When configuring my kernel with the option
HZ = 1000
instead of
HZ = 100
, the following lines in uipc_socket.c lead to a systematic error.
----------------------------------------------
case SO_RCVTIMEO:
error = sooptcopyin(sopt, &tv, sizeof tv,
sizeof tv);
if (error)
goto bad;
if (tv.tv_sec > SHRT_MAX / hz - hz) {
error = EDOM;
goto bad;
}
----------------------------------------------
Would you please chagne your heuristic, so as to change to 1000Hz?
Thanks
>How-To-Repeat:
Kernel configuration
>Fix:
changed the heuristic, but don't know the overall impact...
>Release-Note:
>Audit-Trail:
>Unformatted:
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